Change ntb_hw_intel to use the new NTB hardware abstraction layer.
Split ntb_transport into its own driver. Change it to use the new NTB
hardware abstraction layer.
Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Abstract the NTB device behind a programming interface, so that it can
support different hardware and client drivers.
Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Pull irq update from Thomas Gleixner:
"The last update for 4.2 is just moving a macro from a local header to
the global one, so it can be used in architecture code as well.
Cleanup of the now empty local header is 4.3 material"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip: Move IRQCHIP_DECLARE macro to include/linux/irqchip.h
Pull scheduler fixes from Ingo Molnar:
"Debug info and other statistics fixes and related enhancements"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/numa: Fix numa balancing stats in /proc/pid/sched
sched/numa: Show numa_group ID in /proc/sched_debug task listings
sched/debug: Move print_cfs_rq() declaration to kernel/sched/sched.h
sched/stat: Expose /proc/pid/schedstat if CONFIG_SCHED_INFO=y
sched/stat: Simplify the sched_info accounting dependency
Pull second round of input updates from Dmitry Torokhov:
"A new driver for Weida wdt87xx touch controllers, and a bunch of
fixups for other drivers"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: wdt87xx_i2c - add a scaling factor for TOUCH_MAJOR event
Input: wdt87xx_i2c - remove stray newline in diagnostic message
Input: arc_ps2 - add HAS_IOMEM dependency
Input: wdt87xx_i2c - fix format warning
Input: improve parsing OF parameters for touchscreens
Input: edt-ft5x06 - mark as direct input device
Input: use for_each_set_bit() where appropriate
Input: add a driver for wdt87xx touchscreen controller
Input: axp20x-pek - fix reporting button state as inverted
Input: xpad - re-send LED command on present event
Input: xpad - set the LEDs properly on XBox Wireless controllers
Input: imx_keypad - check for clk_prepare_enable() error
Currently print_cfs_rq() is declared in include/linux/sched.h.
However it's not used outside kernel/sched. Hence move the
declaration to kernel/sched/sched.h
Also some functions are only available for CONFIG_SCHED_DEBUG=y.
Hence move the declarations to within the #ifdef.
Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Iulia Manda <iulia.manda21@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1435252903-1081-2-git-send-email-srikar@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
I have just queued some more bugfix patches today but none fix regressions and
none are related to these ones, so it looks like a good time for a merge for
-rc1.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio/vhost cross endian support from Michael Tsirkin:
"I have just queued some more bugfix patches today but none fix
regressions and none are related to these ones, so it looks like a
good time for a merge for -rc1.
The motivation for this is support for legacy BE guests on the new LE
hosts. There are two redeeming properties that made me merge this:
- It's a trivial amount of code: since we wrap host/guest accesses
anyway, almost all of it is well hidden from drivers.
- Sane platforms would never set flags like VHOST_CROSS_ENDIAN_LEGACY,
and when it's clear, there's zero overhead (as some point it was
tested by compiling with and without the patches, got the same
stripped binary).
Maybe we could create a Kconfig symbol to enforce the second point:
prevent people from enabling it eg on x86. I will look into this"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio-pci: alloc only resources actually used.
macvtap/tun: cross-endian support for little-endian hosts
vhost: cross-endian support for legacy devices
virtio: add explicit big-endian support to memory accessors
vhost: introduce vhost_is_little_endian() helper
vringh: introduce vringh_is_little_endian() helper
macvtap: introduce macvtap_is_little_endian() helper
tun: add tun_is_little_endian() helper
virtio: introduce virtio_is_little_endian() helper
Pull user namespace updates from Eric Biederman:
"Long ago and far away when user namespaces where young it was realized
that allowing fresh mounts of proc and sysfs with only user namespace
permissions could violate the basic rule that only root gets to decide
if proc or sysfs should be mounted at all.
Some hacks were put in place to reduce the worst of the damage could
be done, and the common sense rule was adopted that fresh mounts of
proc and sysfs should allow no more than bind mounts of proc and
sysfs. Unfortunately that rule has not been fully enforced.
There are two kinds of gaps in that enforcement. Only filesystems
mounted on empty directories of proc and sysfs should be ignored but
the test for empty directories was insufficient. So in my tree
directories on proc, sysctl and sysfs that will always be empty are
created specially. Every other technique is imperfect as an ordinary
directory can have entries added even after a readdir returns and
shows that the directory is empty. Special creation of directories
for mount points makes the code in the kernel a smidge clearer about
it's purpose. I asked container developers from the various container
projects to help test this and no holes were found in the set of mount
points on proc and sysfs that are created specially.
This set of changes also starts enforcing the mount flags of fresh
mounts of proc and sysfs are consistent with the existing mount of
proc and sysfs. I expected this to be the boring part of the work but
unfortunately unprivileged userspace winds up mounting fresh copies of
proc and sysfs with noexec and nosuid clear when root set those flags
on the previous mount of proc and sysfs. So for now only the atime,
read-only and nodev attributes which userspace happens to keep
consistent are enforced. Dealing with the noexec and nosuid
attributes remains for another time.
This set of changes also addresses an issue with how open file
descriptors from /proc/<pid>/ns/* are displayed. Recently readlink of
/proc/<pid>/fd has been triggering a WARN_ON that has not been
meaningful since it was added (as all of the code in the kernel was
converted) and is not now actively wrong.
There is also a short list of issues that have not been fixed yet that
I will mention briefly.
It is possible to rename a directory from below to above a bind mount.
At which point any directory pointers below the renamed directory can
be walked up to the root directory of the filesystem. With user
namespaces enabled a bind mount of the bind mount can be created
allowing the user to pick a directory whose children they can rename
to outside of the bind mount. This is challenging to fix and doubly
so because all obvious solutions must touch code that is in the
performance part of pathname resolution.
As mentioned above there is also a question of how to ensure that
developers by accident or with purpose do not introduce exectuable
files on sysfs and proc and in doing so introduce security regressions
in the current userspace that will not be immediately obvious and as
such are likely to require breaking userspace in painful ways once
they are recognized"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
vfs: Remove incorrect debugging WARN in prepend_path
mnt: Update fs_fully_visible to test for permanently empty directories
sysfs: Create mountpoints with sysfs_create_mount_point
sysfs: Add support for permanently empty directories to serve as mount points.
kernfs: Add support for always empty directories.
proc: Allow creating permanently empty directories that serve as mount points
sysctl: Allow creating permanently empty directories that serve as mountpoints.
fs: Add helper functions for permanently empty directories.
vfs: Ignore unlocked mounts in fs_fully_visible
mnt: Modify fs_fully_visible to deal with locked ro nodev and atime
mnt: Refactor the logic for mounting sysfs and proc in a user namespace
- new remoteproc TI Wakeup M3 driver from Dave Gerlach
- remoteproc core support for TI's Wakeup M3 driver from both Dave and Suman
- tiny remoteproc build fix from myself
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Merge tag 'remoteproc-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc
Pull remoteproc updates from Ohad Ben-Cohen:
- remoteproc fixes/cleanups from Suman Anna
- new remoteproc TI Wakeup M3 driver from Dave Gerlach
- remoteproc core support for TI's Wakeup M3 driver from both Dave and Suman
- tiny remoteproc build fix from myself
* tag 'remoteproc-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
remoteproc: fix !CONFIG_OF build breakage
remoteproc/wkup_m3: add a remoteproc driver for TI Wakeup M3
Documentation: dt: add bindings for TI Wakeup M3 processor
remoteproc: add a rproc ops for performing address translation
remoteproc: introduce rproc_get_by_phandle API
remoteproc: fix various checkpatch warnings
remoteproc/davinci: fix quoted split string checkpatch warning
remoteproc/ste: add blank lines after declarations
- OMAP hwspinlock DT support from Suman Anna
- QCOM hwspinlock DT support from Bjorn Andersson
- a new CSR atlas7 hwspinlock driver from Wei Chen
- CSR atlas7 hwspinlock DT binding document from Wei Chen
- a tiny QCOM hwspinlock driver fix from Bjorn Andersson
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Merge tag 'hwspinlock-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/hwspinlock
Pull hwspinlock updates from Ohad Ben-Cohen:
- hwspinlock core DT support from Suman Anna
- OMAP hwspinlock DT support from Suman Anna
- QCOM hwspinlock DT support from Bjorn Andersson
- a new CSR atlas7 hwspinlock driver from Wei Chen
- CSR atlas7 hwspinlock DT binding document from Wei Chen
- a tiny QCOM hwspinlock driver fix from Bjorn Andersson
* tag 'hwspinlock-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/hwspinlock:
hwspinlock: qcom: Correct msb in regmap_field
DT: hwspinlock: add the CSR atlas7 hwspinlock bindings document
hwspinlock: add a CSR atlas7 driver
hwspinlock: qcom: Add support for Qualcomm HW Mutex block
DT: hwspinlock: Add binding documentation for Qualcomm hwmutex
hwspinlock/omap: add support for dt nodes
Documentation: dt: add the omap hwspinlock bindings document
hwspinlock/core: add device tree support
Documentation: dt: add common bindings for hwspinlock
Pull block fixes from Jens Axboe:
"Mainly sending this off now for the writeback fixes, since they fix a
real regression introduced with the cgroup writeback changes. The
NVMe fix could wait for next pull for this series, but it's simple
enough that we might as well include it.
This contains:
- two cgroup writeback fixes from Tejun, fixing a user reported issue
with luks crypt devices hanging when being closed.
- NVMe error cleanup fix from Jon Derrick, fixing a case where we'd
attempt to free an unregistered IRQ"
* 'for-linus' of git://git.kernel.dk/linux-block:
NVMe: Fix irq freeing when queue_request_irq fails
writeback: don't drain bdi_writeback_congested on bdi destruction
writeback: don't embed root bdi_writeback_congested in bdi_writeback
Commit 1cde2930e1 ("sched/preempt: Add static_key() to preempt_notifiers")
had two problems. First, the preempt-notifier API needs to sleep with the
addition of the static_key, we do however need to hold off preemption
while modifying the preempt notifier list, otherwise a preemption could
observe an inconsistent list state. KVM correctly registers and
unregisters preempt notifiers with preemption disabled, so the sleep
caused dmesg splats.
Second, KVM registers and unregisters preemption notifiers very often
(in vcpu_load/vcpu_put). With a single uniprocessor guest the static key
would move between 0 and 1 continuously, hitting the slow path on every
userspace exit.
To fix this, wrap the static_key inc/dec in a new API, and call it from
KVM.
Fixes: 1cde2930e1 ("sched/preempt: Add static_key() to preempt_notifiers")
Reported-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Reported-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- Fix system resume problems related to 32-bit and 64-bit versions
of the Firmware ACPI Control Structure (FACS) in the firmare (Lv
Zheng).
- Fix double initialization of the FACS (Lv Zheng).
- Add _CLS object processing code to ACPICA (Suravee Suthikulpanit).
- Add support for the (currently missing) new GIC version field in
the Multiple APIC Description Table (MADT) (Hanjun Guo).
- Add support for overriding objects in the ACPI namespace to
ACPICA and OSDT support (Lv Zheng, Bob Moore, Zhang Rui).
- Updates related to the TCPA and TPM2 ACPI tables (Bob Moore).
- Restore the commit modifying _REV to always return "2" (as
required by ACPI 6) and add a blacklisting mechanism for
systems that may be affected by that change (Rafael J Wysocki).
- Assorted fixes and cleanups (Bob Moore, Lv Zheng, Sascha Wildner).
/
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Merge tag 'acpica-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPICA updates from Rafael Wysocki:
"Additional ACPICA material for v4.2-rc1
This will update the ACPICA code in the kernel to upstream revision
20150619 (a bug-fix release mostly including stable-candidate fixes)
and restore an earlier ACPICA commit that had to be reverted due to a
regression introduced by it (the regression is addressed by
blacklisting the only known system affected by it to date).
The only new feature added by this update is the support for
overriding objects in the ACPI namespace and a new ACPI table that can
be used for that called the Override System Definition Table (OSDT).
That should allow us to "patch" the ACPI namespace built from
incomplete or incorrect ACPI System Definition tables (DSDT, SSDT)
during system startup without the need to provide replacements for all
of those tables in the future.
Specifics:
- Fix system resume problems related to 32-bit and 64-bit versions of
the Firmware ACPI Control Structure (FACS) in the firmare (Lv
Zheng)
- Fix double initialization of the FACS (Lv Zheng)
- Add _CLS object processing code to ACPICA (Suravee Suthikulpanit)
- Add support for the (currently missing) new GIC version field in
the Multiple APIC Description Table (MADT) (Hanjun Guo)
- Add support for overriding objects in the ACPI namespace to ACPICA
and OSDT support (Lv Zheng, Bob Moore, Zhang Rui)
- Updates related to the TCPA and TPM2 ACPI tables (Bob Moore)
- Restore the commit modifying _REV to always return "2" (as required
by ACPI 6) and add a blacklisting mechanism for systems that may be
affected by that change (Rafael J Wysocki)
- Assorted fixes and cleanups (Bob Moore, Lv Zheng, Sascha Wildner)"
* tag 'acpica-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (28 commits)
Revert 'Revert "ACPICA: Permanently set _REV to the value '2'."'
ACPI / init: Make it possible to override _REV
ACPICA: Update version to 20150619
ACPICA: Comment update, no functional change
ACPICA: Update TPM2 ACPI table
ACPICA: Update definitions for the TCPA and TPM2 ACPI tables
ACPICA: Split C library prototypes to new header
ACPICA: De-macroize calls to standard C library functions
ACPI / acpidump: Update acpidump manual
ACPICA: acpidump: Convert the default behavior to dump from /sys/firmware/acpi/tables
ACPICA: acpidump: Allow customized tables to be dumped without accessing /dev/mem
ACPICA: Cleanup output for the ASL Debug object
ACPICA: Update for acpi_install_table memory types
ACPICA: Namespace: Change namespace override to avoid node deletion
ACPICA: Namespace: Add support of OSDT table
ACPICA: Namespace: Add support to allow overriding objects
ACPICA: ACPI 6.0: Add values for MADT GIC version field
ACPICA: Utilities: Add _CLS processing
ACPICA: Add dragon_fly support to unix file mapping file
ACPICA: EFI: Add EFI interface definitions to eliminate dependency of GNU EFI
...
Pull radeon and amdgpu fixes from Alex Deucher:
"First round of fixes for 4.2 for radeon and amdgpu. Stuff all over
the place:
- hibernation, suspend fixes for radeon and amdgpu
- radeon audio fix
- amdgpu ioctl optimzations and fixes
- amdgpu VCE cs checker improvements
- misc bug fixes"
[ Dave on vacation, pulling directly ]
* 'drm-next-4.2' of git://people.freedesktop.org/~agd5f/linux: (30 commits)
drm/radeon: only check the sink type on DP connectors
drm/amdgpu: add flag to delay VM updates
drm/amdgpu: add optional dependencies to the CS IOCTL v2
drm/amdgpu: recreate fence from user seq
gpu/drm/amdgpu: Fix build when CONFIG_DEBUG_FS is not set
Revert "drm/radeon: dont switch vt on suspend"
drm/amdgpu: disable enable_nb_ps_policy temporarily
drm/amdgpu: correct define SMU_EnabledFeatureScoreboard_SclkDpmOn
drm/amdgpu: allocate ip_block_enabled memory in common code
drm/amdgpu: remove unnecessary check before kfree
drm/amdgpu: use kzalloc for allocating one thing
drm/radeon: fix adding all VAs to the freed list on remove v2
drm/amdgpu: add chunk id validity check
drm/amdgpu: fix crash on invalid CS IOCTL
drm/amdgpu: reset wptr at cp compute resume (v2)
drm/amdgpu: check VCE feedback and bitstream index
drm/amdgpu: make VCE handle check more strict
drm/amdgpu: check VCE relocation buffer range
drm/amdgpu: silence invalid error message
drm/amdgpu: fix wrong type
...
At the moment the IRQCHIP_DECLARE macro is only declared locally in
drivers/irqchip/irqchip.h. It prevents from using it directly in arch/*
directories whenever irqchip drivers only exist there, which happens in a few
cases (e.g. arc, arm, microblaze and mips).
This patch makes the macro to be globally defined, i.e. in
include/linux/irqchip.h, and thus usable for arch-specific declarations of
irqchip drivers. In this way, it is very similar to what clocksource does (ie
CLOCKSOURCE_OF_DECLARE is defined in include/linux/clocksource.h).
For now, this patch only moves the declaration of the macro
IRQCHIP_DECLARE to the global header 'include/linux/irqchip.h' and make
'drivers/irqchip/irqchip.h' include 'include/linux/irqchip.h'. Later, other
patches will get rid of 'drivers/irqchip/irqchip.h' and modify all the impacted
irqchip drivers.
Signed-off-by: Joel Porquet <joel@porquet.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1435865565-14114-1-git-send-email-joel@porquet.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Pull Ceph updates from Sage Weil:
"We have a pile of bug fixes from Ilya, including a few patches that
sync up the CRUSH code with the latest from userspace.
There is also a long series from Zheng that fixes various issues with
snapshots, inline data, and directory fsync, some simplification and
improvement in the cap release code, and a rework of the caching of
directory contents.
To top it off there are a few small fixes and cleanups from Benoit and
Hong"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (40 commits)
rbd: use GFP_NOIO in rbd_obj_request_create()
crush: fix a bug in tree bucket decode
libceph: Fix ceph_tcp_sendpage()'s more boolean usage
libceph: Remove spurious kunmap() of the zero page
rbd: queue_depth map option
rbd: store rbd_options in rbd_device
rbd: terminate rbd_opts_tokens with Opt_err
ceph: fix ceph_writepages_start()
rbd: bump queue_max_segments
ceph: rework dcache readdir
crush: sync up with userspace
crush: fix crash from invalid 'take' argument
ceph: switch some GFP_NOFS memory allocation to GFP_KERNEL
ceph: pre-allocate data structure that tracks caps flushing
ceph: re-send flushing caps (which are revoked) in reconnect stage
ceph: send TID of the oldest pending caps flush to MDS
ceph: track pending caps flushing globally
ceph: track pending caps flushing accurately
libceph: fix wrong name "Ceph filesystem for Linux"
ceph: fix directory fsync
...
Highlights include:
Stable patches:
- Fix a crash in the NFSv4 file locking code.
- Fix an fsync() regression, where we were failing to retry I/O in some
circumstances.
- Fix an infinite loop in NFSv4.0 OPEN stateid recovery
- Fix a memory leak when an attempted pnfs fails.
- Fix a memory leak in the backchannel code
- Large hostnames were not supported correctly in NFSv4.1
- Fix a pNFS/flexfiles bug that was impeding error reporting on I/O.
- Fix a couple of credential issues in pNFS/flexfiles
Bugfixes + cleanups:
- Open flag sanity checks in the NFSv4 atomic open codepath
- More NFSv4 delegation related bugfixes
- Various NFSv4.1 backchannel bugfixes and cleanups
- Fix the NFS swap socket code
- Various cleanups of the NFSv4 SETCLIENTID and EXCHANGE_ID code
- Fix a UDP transport deadlock issue
Features:
- More RDMA client transport improvements
- NFSv4.2 LAYOUTSTATS functionality for pnfs flexfiles.
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Merge tag 'nfs-for-4.2-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust:
"Highlights include:
Stable patches:
- Fix a crash in the NFSv4 file locking code.
- Fix an fsync() regression, where we were failing to retry I/O in
some circumstances.
- Fix an infinite loop in NFSv4.0 OPEN stateid recovery
- Fix a memory leak when an attempted pnfs fails.
- Fix a memory leak in the backchannel code
- Large hostnames were not supported correctly in NFSv4.1
- Fix a pNFS/flexfiles bug that was impeding error reporting on I/O.
- Fix a couple of credential issues in pNFS/flexfiles
Bugfixes + cleanups:
- Open flag sanity checks in the NFSv4 atomic open codepath
- More NFSv4 delegation related bugfixes
- Various NFSv4.1 backchannel bugfixes and cleanups
- Fix the NFS swap socket code
- Various cleanups of the NFSv4 SETCLIENTID and EXCHANGE_ID code
- Fix a UDP transport deadlock issue
Features:
- More RDMA client transport improvements
- NFSv4.2 LAYOUTSTATS functionality for pnfs flexfiles"
* tag 'nfs-for-4.2-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (87 commits)
nfs: Remove invalid tk_pid from debug message
nfs: Remove invalid NFS_ATTR_FATTR_V4_REFERRAL checking in nfs4_get_rootfh
nfs: Drop bad comment in nfs41_walk_client_list()
nfs: Remove unneeded micro checking of CONFIG_PROC_FS
nfs: Don't setting FILE_CREATED flags always
nfs: Use remove_proc_subtree() instead remove_proc_entry()
nfs: Remove unused argument in nfs_server_set_fsinfo()
nfs: Fix a memory leak when meeting an unsupported state protect
nfs: take extra reference to fl->fl_file when running a LOCKU operation
NFSv4: When returning a delegation, don't reclaim an incompatible open mode.
NFSv4.2: LAYOUTSTATS is optional to implement
NFSv4.2: Fix up a decoding error in layoutstats
pNFS/flexfiles: Fix the reset of struct pgio_header when resending
pNFS/flexfiles: Turn off layoutcommit for servers that don't need it
pnfs/flexfiles: protect ktime manipulation with mirror lock
nfs: provide pnfs_report_layoutstat when NFS42 is disabled
nfs: verify open flags before allowing open
nfs: always update creds in mirror, even when we have an already connected ds
nfs: fix potential credential leak in ff_layout_update_mirror_cred
pnfs/flexfiles: report layoutstat regularly
...
Pull fuse updates from Miklos Szeredi:
"This is the start of improving fuse scalability.
An input queue and a processing queue is split out from the monolithic
fuse connection, each of those having their own spinlock. The end of
the patchset adds the ability to clone a fuse connection. This means,
that instead of having to read/write requests/answers on a single fuse
device fd, the fuse daemon can have multiple distinct file descriptors
open. Each of those can be used to receive requests and send answers,
currently the only constraint is that a request must be answered on
the same fd as it was read from.
This can be extended further to allow binding a device clone to a
specific CPU or NUMA node.
Based on a patchset by Srinivas Eeda and Ashish Samant. Thanks to
Ashish for the review of this series"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (40 commits)
fuse: update MAINTAINERS entry
fuse: separate pqueue for clones
fuse: introduce per-instance fuse_dev structure
fuse: device fd clone
fuse: abort: no fc->lock needed for request ending
fuse: no fc->lock for pqueue parts
fuse: no fc->lock in request_end()
fuse: cleanup request_end()
fuse: request_end(): do once
fuse: add req flag for private list
fuse: pqueue locking
fuse: abort: group pqueue accesses
fuse: cleanup fuse_dev_do_read()
fuse: move list_del_init() from request_end() into callers
fuse: duplicate ->connected in pqueue
fuse: separate out processing queue
fuse: simplify request_wait()
fuse: no fc->lock for iqueue parts
fuse: allow interrupt queuing without fc->lock
fuse: iqueue locking
...
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Merge tag 'module-builtin_driver-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
Pull module_platform_driver replacement from Paul Gortmaker:
"Replace module_platform_driver with builtin_platform driver in non
modules.
We see an increasing number of non-modular drivers using
modular_driver() type register functions. There are several downsides
to letting this continue unchecked:
- The code can appear modular to a reader of the code, and they won't
know if the code really is modular without checking the Makefile
and Kconfig to see if compilation is governed by a bool or
tristate.
- Coders of drivers may be tempted to code up an __exit function that
is never used, just in order to satisfy the required three args of
the modular registration function.
- Non-modular code ends up including the <module.h> which increases
CPP overhead that they don't need.
- It hinders us from performing better separation of the module init
code and the generic init code.
So here we introduce similar macros for builtin drivers. Then we
convert builtin drivers (controlled by a bool Kconfig) by making the
following type of mapping:
module_platform_driver() ---> builtin_platform_driver()
module_platform_driver_probe() ---> builtin_platform_driver_probe().
The set of drivers that are converted here are just the ones that
showed up as relying on an implicit include of <module.h> during a
pending header cleanup. So we convert them here vs adding an include
of <module.h> to non-modular code to avoid compile fails. Additonal
conversions can be done asynchronously at any time.
Once again, an unused module_exit function that is removed here
appears in the diffstat as an outlier wrt all the other changes"
* tag 'module-builtin_driver-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
drivers/clk: convert sunxi/clk-mod0.c to use builtin_platform_driver
drivers/power: Convert non-modular syscon-reboot to use builtin_platform_driver
drivers/soc: Convert non-modular soc-realview to use builtin_platform_driver
drivers/soc: Convert non-modular tegra/pmc to use builtin_platform_driver
drivers/cpufreq: Convert non-modular s5pv210-cpufreq.c to use builtin_platform_driver
drivers/cpuidle: Convert non-modular drivers to use builtin_platform_driver
drivers/platform: Convert non-modular pdev_bus to use builtin_platform_driver
platform_device: better support builtin boilerplate avoidance
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Merge tag 'cpuinit-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
Pull __cpuinit removal from Paul Gortmaker:
"Remove __cpuinit macros and users.
We removed the __cpuinit stuff in 3.11-rc1 with commit 22f0a27367
("init.h: remove __cpuinit sections from the kernel") but we left some
no-op stubs as a courtesy to unmerged code.
Here we get rid of the stubs as well, since (as can be seen in these
changes) they are enabling use cases to sneak back in, primarily from
older BSP code that has been living out of tree for some time prior to
getting mainlined. So we get rid of these "new" users 1st and then
get rid of the stubs.
Obviously, getting rid of the stubs can't happen until all the users
are gone, so I had to keep this together as a series, even though some
of these commits since got picked up into maintainers trees as well.
The nature of this change is such that it should have zero impact on
the generated runtime.
This is one of several independent cleanup branches aimed at enabling
better organization in the init.h and module.h code. They have been
getting coverage in the linux-next tree for the last month, in
addition to my local testing, which also covers approximately a half
dozen or more architectures"
* tag 'cpuinit-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
init: delete the __cpuinit related stubs
kernel/cpu.c: remove new instance of __cpuinit that crept back in
sched/core: remove __cpuinit section tag that crept back in.
mips/mm/tlbex: remove new instance of __cpuinit that crept back in
mips/c-r4k: remove legacy __cpuinit section that crept in
mips/bcm77xx: remove legacy __cpuinit sections that crept in
mips/ath25: remove legacy __cpuinit section that crept in
arm/mach-hisi: remove legacy __CPUINIT section that crept in
arm/mach-rockchip: remove legacy __cpuinit section that crept in
arm/mach-mvebu: remove legacy __cpuinit sections that crept in
arm/mach-keystone: remove legacy __cpuinit sections that crept in
52ebea749a ("writeback: make backing_dev_info host cgroup-specific
bdi_writebacks") made bdi (backing_dev_info) host per-cgroup wb's
(bdi_writeback's). As the congested state needs to be per-wb and
referenced from blkcg side and multiple wbs, the patch made all
non-root cong's (bdi_writeback_congested's) reference counted and
indexed on bdi.
When a bdi is destroyed, cgwb_bdi_destroy() tries to drain all
non-root cong's; however, this can hang indefinitely because wb's can
also be referenced from blkcg_gq's which are destroyed after bdi
destruction is complete.
To fix the bug, bdi destruction will be updated to not wait for cong's
to drain, which naturally means that cong's may outlive the associated
bdi. This is fine for non-root cong's but is problematic for the root
cong's which are embedded in their bdi's as they may end up getting
dereferenced after the containing bdi's are freed.
This patch makes root cong's behave the same as non-root cong's. They
are no longer embedded in their bdi's but allocated separately during
bdi initialization, indexed and reference counted the same way.
* As cong handling is the same for all wb's, wb->congested
initialization is moved into wb_init().
* When !CONFIG_CGROUP_WRITEBACK, there was no indexing or refcnting.
bdi->wb_congested is now a pointer pointing to the root cong
allocated during bdi init and minimal refcnting operations are
implemented.
* The above makes root wb init paths diverge depending on
CONFIG_CGROUP_WRITEBACK. root wb init is moved to cgwb_bdi_init().
This patch in itself shouldn't cause any consequential behavior
differences but prepares for the actual fix.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Jon Christopherson <jon@jons.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=100681
Tested-by: Jon Christopherson <jon@jons.org>
Added <linux/slab.h> include to backing-dev.h for kfree() definition.
Signed-off-by: Jens Axboe <axboe@fb.com>
This patch only moves files to their new locations, before applying the
next two patches adding the NTB Abstraction layer. Splitting this patch
from the next is intended make distinct which code is changed only due
to moving the files, versus which are substantial code changes in adding
the NTB Abstraction layer.
Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
sb_getblk() is used during ext4 (and possibly other FSes) writeback
paths. Sometimes such path require allocating memory and guaranteeing
that such allocation won't block. Currently, however, there is no way
to provide user flags for sb_getblk which could lead to deadlocks.
This patch implements a sb_getblk_gfp with the only difference it can
accept user-provided GFP flags.
Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
A whole lot of bug fixes. Nothing stands out here except the ability to
enable CONFIG_OF on every architecture, and an import of a newer version
of dtc.
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Merge tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux
Pull devicetree updates from Grant Likely:
"A whole lot of bug fixes.
Nothing stands out here except the ability to enable CONFIG_OF on
every architecture, and an import of a newer version of dtc"
* tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux: (22 commits)
of/irq: Rename "intc_desc" to "of_intc_desc" to fix OF on sh
of/irq: Fix pSeries boot failure
Documentation: DT: Fix a typo in the filename "lantiq,<chip>-pinumx.txt"
of: define of_find_node_by_phandle for !CONFIG_OF
of/address: use atomic allocation in pci_register_io_range()
of: Add vendor prefix for Zodiac Inflight Innovations
dt/fdt: add empty versions of early_init_dt_*_memory_arch
of: clean-up unnecessary libfdt include paths
of: make unittest select OF_EARLY_FLATTREE instead of depend on it
of: make CONFIG_OF user selectable
MIPS: prepare for user enabling of CONFIG_OF
of/fdt: fix argument name and add comments of unflatten_dt_node()
of: return NUMA_NO_NODE from fallback of_node_to_nid()
tps6507x.txt: Remove executable permission
of/overlay: Grammar s/an negative/a negative/
of/fdt: Make fdt blob input parameters of unflatten functions const
of: add helper function to retrive match data
of: Grammar s/property exist/property exists/
of: Move OF flags to be visible even when !CONFIG_OF
scripts/dtc: Update to upstream version 9d3649bd3be245c9
...
Pull watchdog updates from Wim Van Sebroeck:
"This contains:
- new driver for ST's LPC Watchdog
- new driver for Conexant Digicolor CX92755 SoC
- new driver for DA9062 watchdog
- Addition of the watchdog registration deferral mechanism
- several improvements on omap_wdt
- several improvements and reboot-support for imgpdc_wdt
- max63xx_wdt improvements
- imx2_wdt improvements
- dw_wdt improvements
- and other small improvements and fixes"
* git://www.linux-watchdog.org/linux-watchdog: (37 commits)
watchdog: omap_wdt: early_enable module parameter
watchdog: gpio_wdt: Add option for early registration
watchdog: watchdog_core: Add watchdog registration deferral mechanism
watchdog: max63xx: dynamically allocate device
watchdog: imx2_wdt: Disable previously acquired clock on error path
watchdog: imx2_wdt: Check for clk_prepare_enable() error
watchdog: hpwdt: Add support for WDIOC_SETOPTIONS
watchdog: docs: omap_wdt also understands nowayout
watchdog: omap_wdt: implement get_timeleft
watchdog: da9062: DA9062 watchdog driver
watchdog: imx2_wdt: set watchdog parent device
watchdog: mena21_wdt: Fix possible NULL pointer dereference
watchdog: dw_wdt: keepalive the watchdog at write time
watchdog: dw_wdt: No need for a spinlock
watchdog: imx2_wdt: also set wdog->timeout to new_timeout
watchdog: Allow compile test of GPIO consumers if !GPIOLIB
watchdog: cadence: Add dependency on HAS_IOMEM
watchdog: max63xx_wdt: Constify platform_device_id
watchdog: MAX63XX_WATCHDOG does not depend on ARM
watchdog: imgpdc: Add some documentation about the timeout
...
drivers and updates to existing ones, as usual. There are some fixes to
the framework itself and several cleanups for sparse warnings, etc.
Please consider pulling.
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Merge tag 'clk-for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clock framework updates from Michael Turquette:
"The changes to the common clock framework for 4.2 are dominated by new
drivers and updates to existing ones, as usual.
There are some fixes to the framework itself and several cleanups for
sparse warnings, etc"
* tag 'clk-for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (135 commits)
clk: stm32: Add clock driver for STM32F4[23]xxx devices
dt-bindings: Document the STM32F4 clock bindings
cpufreq: exynos: remove Exynos4210 specific cpufreq driver support
ARM: Exynos: switch to using generic cpufreq driver for Exynos4210
clk: samsung: exynos4: add cpu clock configuration data and instantiate cpu clock
clk: samsung: add infrastructure to register cpu clocks
clk: add CLK_RECALC_NEW_RATES clock flag for Exynos cpu clock support
doc: dt: add documentation for lpc1850-ccu clk driver
clk: add lpc18xx ccu clk driver
doc: dt: add documentation for lpc1850-cgu clk driver
clk: add lpc18xx cgu clk driver
clk: keystone: add support for post divider register for main pll
clk: mvebu: flag the crypto clk as CLK_IGNORE_UNUSED
clk: cygnus: remove Cygnus dummy clock binding
clk: cygnus: add clock support for Broadcom Cygnus
clk: Change bcm clocks build dependency
clk: iproc: add initial common clock support
clk: iproc: define Broadcom iProc clock binding
MAINTAINERS: update email for Michael Turquette
clk: meson: add some error handling in meson_clk_register_cpu()
...
Pull LED subsystem updates from Bryan Wu:
"In this cycle, we finished to merge patches for LED Flash class
driver.
Other than that we have some bug fixes and new drivers for LED
controllers"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: (33 commits)
leds:lp55xx: fix firmware loading error
leds: fix max77693-led build errors
leds: fix aat1290 build errors
leds: aat1290: pass flags parameter to devm_gpiod_get
leds: ktd2692: pass flags parameter to devm_gpiod_get
drivers/leds: don't use module_init in non-modular leds-cobalt-raq.c
leds: aat1290: add support for V4L2 Flash sub-device
DT: aat1290: Document handling external strobe sources
leds: max77693: add support for V4L2 Flash sub-device
media: Add registration helpers for V4L2 flash sub-devices
v4l: async: Add a pointer to of_node to struct v4l2_subdev, match it
Documentation: leds: Add description of v4l2-flash sub-device
leds: add BCM6358 LED driver
leds: add DT binding for BCM6358 LED controller
leds: fix brightness changing when software blinking is active
Documentation: leds-lp5523: describe master fader attributes
leds: lp5523: add master_fader support
leds: leds-gpio: Allow compile test if !GPIOLIB
leds: leds-gpio: Add missing #include <linux/of.h>
gpiolib: Add missing dummies for the unified device properties interface
...
Merge third patchbomb from Andrew Morton:
- the rest of MM
- scripts/gdb updates
- ipc/ updates
- lib/ updates
- MAINTAINERS updates
- various other misc things
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (67 commits)
genalloc: rename of_get_named_gen_pool() to of_gen_pool_get()
genalloc: rename dev_get_gen_pool() to gen_pool_get()
x86: opt into HAVE_COPY_THREAD_TLS, for both 32-bit and 64-bit
MAINTAINERS: add zpool
MAINTAINERS: BCACHE: Kent Overstreet has changed email address
MAINTAINERS: move Jens Osterkamp to CREDITS
MAINTAINERS: remove unused nbd.h pattern
MAINTAINERS: update brcm gpio filename pattern
MAINTAINERS: update brcm dts pattern
MAINTAINERS: update sound soc intel patterns
MAINTAINERS: remove website for paride
MAINTAINERS: update Emulex ocrdma email addresses
bcache: use kvfree() in various places
libcxgbi: use kvfree() in cxgbi_free_big_mem()
target: use kvfree() in session alloc and free
IB/ehca: use kvfree() in ipz_queue_{cd}tor()
drm/nouveau/gem: use kvfree() in u_free()
drm: use kvfree() in drm_free_large()
cxgb4: use kvfree() in t4_free_mem()
cxgb3: use kvfree() in cxgb_free_mem()
...
Pull irq fixes from Thomas Gleixner:
"This contains:
- a series of fixes for interrupt drivers to prevent a potential race
when installing a chained interrupt handler
- a fix for cpumask pointer misuse
- a fix for using the wrong interrupt number from struct irq_data
- removal of unused code and outdated comments
- a few new helper functions which allow us to cleanup the interrupt
handling code further in 4.3
I decided against doing the cleanup at the end of this merge window
and rather do the preparatory steps for 4.3, so we can run the final
ABI change at the end of the 4.3 merge window with less risk"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
ARM/LPC32xx: Use irq not hwirq for __irq_set_handler_locked()
genirq: Implement irq_set_handler_locked()/irq_set_chip_handler_name_locked()
genirq: Introduce helper irq_desc_get_irq()
genirq: Remove irq_node()
genirq: Clean up outdated comments related to include/linux/irqdesc.h
mn10300: Fix incorrect use of irq_data->affinity
MIPS/ralink: Fix race in installing chained IRQ handler
MIPS/pci: Fix race in installing chained IRQ handler
MIPS/ath25: Fix race in installing chained IRQ handler
MIPS/ath25: Fix race in installing chained IRQ handler
m68k/psc: Fix race in installing chained IRQ handler
avr32/at32ap: Fix race in installing chained IRQ handler
sh/intc: Fix race in installing chained IRQ handler
sh/intc: Fix potential race in installing chained IRQ handler
pinctrl/sun4i: Fix race in installing chained IRQ handler
pinctrl/samsung: Fix race in installing chained IRQ handler
pinctrl/samsung: Fix race in installing chained IRQ handler
pinctrl/exynos: Fix race in installing chained IRQ handler
pinctrl/st: Fix race in installing chained IRQ handler
pinctrl/adi2: Fix race in installing chained IRQ handler
...
Pull networking fixes from David Miller:
1) mlx4 driver bug fixes (TX queue wakeups, csum complete indications)
from Ido Shamay, Eran Ben Elisha, and Or Gerlitz.
2) Missing unlock in error path of PTP support in renesas driver, from
Dan Carpenter.
3) Add Vitesse 8641 phy IDs to vitesse PHY driver, from Shaohui Xie.
4) Bnx2x driver bug fixes (linearization of encap packets, scratchpad
parity error notifications, flow-control and speed settings) from
Yuval Mintz, Manish Chopra, Shahed Shaikh, and Ariel Elior.
5) ipv6 extension header parsing in the igb chip has a HW errata,
disable it. Frm Todd Fujinaka.
6) Fix PCI link state locking issue in e1000e driver, from Yanir
Lubetkin.
7) Cure panics during MTU change in i40e, from Mitch Williams.
8) Don't leak promisc refs in DSA slave driver, from Gilad Ben-Yossef.
9) Add missing HAS_DMA dep to VIA Rhine driver, from Geery
Uytterhoeven.
10) Make sure DMA map/unmap calls are symmetric in bnx2x driver, from
Michal Schmidt.
11) Workaround for MDIO access problems in bcm7xxx devices, from FLorian
Fainelli.
12) Fix races in SCTP protocol between OTTB responses and route
removals, from Alexander Sverdlin.
13) Fix jumbo frame checksum issue with some mvneta devices, from Simon
Guinot.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (58 commits)
sock_diag: don't broadcast kernel sockets
net: mvneta: disable IP checksum with jumbo frames for Armada 370
ARM: mvebu: update Ethernet compatible string for Armada XP
net: mvneta: introduce compatible string "marvell, armada-xp-neta"
api: fix compatibility of linux/in.h with netinet/in.h
net: icplus: fix typo in constant name
sis900: Trivial: Fix typos in enums
stmmac: Trivial: fix typo in constant name
sctp: Fix race between OOTB responce and route removal
net-Liquidio: Delete unnecessary checks before the function call "vfree"
vmxnet3: Bump up driver version number
amd-xgbe: Add the __GFP_NOWARN flag to Rx buffer allocation
net: phy: mdio-bcm-unimac: workaround initial read failures for integrated PHYs
net: bcmgenet: workaround initial read failures for integrated PHYs
net: phy: bcm7xxx: workaround MDIO management controller initial read
bnx2x: fix DMA API usage
net: via: VIA_RHINE and VIA_VELOCITY should depend on HAS_DMA
net/phy: tune get_phy_c45_ids to support more c45 phy
bnx2x: fix lockdep splat
net: fec: don't access RACC register when not available
...
ACPICA commit 2fcf4f4c95e6a4875f39a929f8f92ef50cc53bb5
ACPICA commit d7a940bb308d001b5d2b196174fee36c7daa61d6
Version 20150619.
Link: https://github.com/acpica/acpica/commit/2fcf4f4c
Link: https://github.com/acpica/acpica/commit/d7a940bb
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 254bf77e7ca01cb27e026fa5737f7df8dae03f2c
- Add constans for the start_method.
- Remove the control structure, not part of ACPI, not defined in the current
TCG spec.
Link: https://github.com/acpica/acpica/commit/254bf77e
Reported-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 33140b4498666337dd33a00cf3c4797a53981a7b
Changes for a new version of the 3rd party spec for these tables,
the "TCG ACPI Specification", December 14, 2014. Also, moved the
definition of TPM2 to actbl2.h, next to TCPA, since both should
be together.
Update the table compiler/disassembler code for the tables.
However, the "Server" TCPA table is not supported at this time.
Link: https://github.com/acpica/acpica/commit/33140b44
Reported-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 3b1026e0bdd3c32eb6d5d313f3ba0b1fee7597b4
ACPICA commit 00f0dc83f5cfca53b27a3213ae0d7719b88c2d6b
ACPICA commit 47d22a738d0e19fd241ffe4e3e9d4e198e4afc69
Across all of ACPICA. Replace C library macros such as ACPI_STRLEN with the
standard names such as strlen. The original purpose for these macros is
long since obsolete.
Also cast various invocations as necessary. Bob Moore, Jung-uk Kim, Lv Zheng.
Link: https://github.com/acpica/acpica/commit/3b1026e0
Link: https://github.com/acpica/acpica/commit/00f0dc83
Link: https://github.com/acpica/acpica/commit/47d22a73
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit c0ce529e1fbb8ec47d2522a3aa10f3ab77e16e41
There is no reference counting implemented for struct acpi_namespace_node, so it
is currently not removable during runtime.
This patch changes the namespace override code to keep the old
struct acpi_namespace_node undeleted so that the override mechanism can happen
during runtime. Bob Moore.
Link: https://github.com/acpica/acpica/commit/c0ce529e
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 27415c82fcecf467446f66d1007a0691cc5f3709
This patch adds OSDT (Override System Definition Table) support.
When OSDT is loaded, conflict namespace objects will be overridden
by the AML interpreter. Bob Moore, Lv Zheng.
Link: https://github.com/acpica/acpica/commit/27415c82
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 4b100dc43e8baee8c8b4891b23bc7ad03eba6a28
Support for the new version field in the generic distributor
subtable. Hanjun Guo <hanjun.guo@linaro.org>
Link: https://github.com/acpica/acpica/commit/4b100dc4
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 9a2b638acb3a7215209432e070c6bd0312374229
ACPI Device object often contains a _CLS object to supply PCI-defined class
code for the device. This patch introduces logic to process the _CLS
object. Suravee Suthikulpanit, Lv Zheng.
Link: https://github.com/acpica/acpica/commit/9a2b638a
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 5d00e67a74542d030f0a55e7a947a020ef0d9693
This patch copies EFI interface definitions to the ACPICA code base so that
the EFI utility support can be ported to other EFI implementation.
Known issues:
1. MS Builds of uefi_call_wrapper()
The uefi_call_wrapper() in GNU EFI is implemented in a the way to work
around the ABI difference between Unix and MS. While I don't have
environment to test the MS builds.
In order to port the ACPICA utilities to other EFI implementation, all that
need to be done is to impelement the 64-bit division support and the
program entry point where the efi_main() is invoked. Code to impelement
these is platform specific, and ACPICA currently choose to hide such
platform specific code within the specific EFI impelementation. Lv Zheng.
This patch doesn't affect Linux kernel.
Link: https://github.com/acpica/acpica/commit/5d00e67a
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 72f5a358f28c5d154ed613c142c7dca03192c5ee
This patch intoduces generic variable macro detection support and fixes
build breakage issue with macros using __VA_ARGS__ feature defined in
C99.
This patch fixes this build issue. Lv Zheng.
This patch doesn't affect Linux kernel.
Link: https://github.com/acpica/acpica/commit/72f5a358
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 4da56eeae0749dfe8491285c1e1fad48f6efafd8
The following commit temporarily disables correct 64-bit FADT addresses
favor during the period the root cause of the bug is not fixed:
Commit: 85dbd5801f
ACPICA: Tables: Restore old behavor to favor 32-bit FADT addresses.
With enough protections, this patch re-enables 64-bit FADT addresses by
default. If regressions are reported against such change, this patch should
be bisected and reverted.
Note that 64-bit FACS favor and 64-bit firmware waking vector favor are
excluded by this commit in order not to break OSPMs. Lv Zheng.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=74021
Link: https://github.com/acpica/acpica/commit/4da56eea
Cc: 3.15.1+ <stable@vger.kernel.org> # 3.15.1+
Reported-and-tested-by: Oswald Buddenhagen <ossi@kde.org>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 90f5332a15e9d9ba83831ca700b2b9f708274658
This patch adds a new FACS initialization flag for acpi_tb_initialize().
acpi_enable_subsystem() might be invoked several times in OS bootup process,
and we don't want FACS initialization to be invoked twice. Lv Zheng.
Link: https://github.com/acpica/acpica/commit/90f5332a
Cc: All applicable <stable@vger.kernel.org> # All applicable
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit f7b86f35416e3d1f71c3d816ff5075ddd33ed486
The following commit is reported to have broken s2ram on some platforms:
Commit: 0249ed2444
ACPICA: Add option to favor 32-bit FADT addresses.
The platform reports 2 FACS tables (which is not allowed by ACPI
specification) and the new 32-bit address favor rule forces OSPMs to use
the FACS table reported via FADT's X_FIRMWARE_CTRL field.
The root cause of the reported bug might be one of the followings:
1. BIOS may favor the 64-bit firmware waking vector address when the
version of the FACS is greater than 0 and Linux currently only supports
resuming from the real mode, so the 64-bit firmware waking vector has
never been set and might be invalid to BIOS while the commit enables
higher version FACS.
2. BIOS may favor the FACS reported via the "FIRMWARE_CTRL" field in the
FADT while the commit doesn't set the firmware waking vector address of
the FACS reported by "FIRMWARE_CTRL", it only sets the firware waking
vector address of the FACS reported by "X_FIRMWARE_CTRL".
This patch excludes the cases that can trigger the bugs caused by the root
cause 2.
There is no handshaking mechanism can be used by OSPM to tell BIOS which
FACS is currently used. Thus the FACS reported by "FIRMWARE_CTRL" may still
be used by BIOS and the 0 value of the 32-bit firmware waking vector might
trigger such failure.
This patch tries to favor 32bit FACS address in another way where both the
FACS reported by "FIRMWARE_CTRL" and the FACS reported by "X_FIRMWARE_CTRL"
are loaded so that further commit can set firmware waking vector in the
both tables to ensure we can exclude the cases that trigger the bugs caused
by the root cause 2. The exclusion is split into 2 commits as this commit
is also useful for dumping more ACPI tables, it won't get reverted when
such exclusion is no longer necessary. Lv Zheng.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=74021
Link: https://github.com/acpica/acpica/commit/f7b86f35
Cc: 3.14.1+ <stable@vger.kernel.org> # 3.14.1+
Reported-and-tested-by: Oswald Buddenhagen <ossi@kde.org>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 7aa598d711644ab0de5f70ad88f1e2de253115e4
The following commit is reported to have broken s2ram on some platforms:
Commit: 0249ed2444
ACPICA: Add option to favor 32-bit FADT addresses.
The platform reports 2 FACS tables (which is not allowed by ACPI
specification) and the new 32-bit address favor rule forces OSPMs to use
the FACS table reported via FADT's X_FIRMWARE_CTRL field.
The root cause of the reported bug might be one of the followings:
1. BIOS may favor the 64-bit firmware waking vector address when the
version of the FACS is greater than 0 and Linux currently only supports
resuming from the real mode, so the 64-bit firmware waking vector has
never been set and might be invalid to BIOS while the commit enables
higher version FACS.
2. BIOS may favor the FACS reported via the "FIRMWARE_CTRL" field in the
FADT while the commit doesn't set the firmware waking vector address of
the FACS reported by "FIRMWARE_CTRL", it only sets the firware waking
vector address of the FACS reported by "X_FIRMWARE_CTRL".
This patch excludes the cases that can trigger the bugs caused by the root
cause 1.
ACPI specification says:
A. 32-bit FACS address (FIRMWARE_CTRL field in FADT):
Physical memory address of the FACS, where OSPM and firmware exchange
control information.
If the X_FIRMWARE_CTRL field contains a non zero value then this field
must be zero.
A zero value indicates that no FACS is specified by this field.
B. 64-bit FACS address (X_FIRMWARE_CTRL field in FADT):
64bit physical memory address of the FACS.
This field is used when the physical address of the FACS is above 4GB.
If the FIRMWARE_CTRL field contains a non zero value then this field
must be zero.
A zero value indicates that no FACS is specified by this field.
Thus the 32bit and 64bit firmware waking vector should indicate completely
different resuming environment - real mode (1MB addressable) and non real
mode (4GB+ addressable) and currently Linux only supports resuming from
real mode.
This patch enables 64-bit firmware waking vector for selected FACS via new
acpi_set_firmware_waking_vectors() API so that it's up to OSPMs to
determine which resuming mode should be used by BIOS and ACPICA changes
won't trigger the bugs caused by the root cause 1. Lv Zheng.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=74021
Link: https://github.com/acpica/acpica/commit/7aa598d7
Reported-and-tested-by: Oswald Buddenhagen <ossi@kde.org>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- Fix a recently added memory leak in an error path in the ACPI
resources management code (Dan Carpenter).
- Fix a build warning triggered by an ACPI video header function
that should be static inline (Borislav Petkov).
- Change names of helper function converting struct fwnode_handle
pointers to either struct device_node or struct acpi_device
pointers so they don't conflict with local variable names
(Alexander Sverdlin).
- Make the hibernate core re-enable nonboot CPUs on failures to
disable them as expected (Vitaly Kuznetsov).
- Increase the default timeout of the device suspend watchdog to
prevent it from triggering too early on some systems (Takashi Iwai).
- Prevent the cpuidle powernv driver from registering idle
states with CPUIDLE_FLAG_TIMER_STOP set if CONFIG_TICK_ONESHOT
is unset which leads to boot hangs (Preeti U Murthy).
/
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Merge tag 'pm+acpi-4.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael Wysocki:
"These are fixes that didn't make it to the previous PM+ACPI pull
request or are fixing issues introduced by it.
Specifics:
- Fix a recently added memory leak in an error path in the ACPI
resources management code (Dan Carpenter)
- Fix a build warning triggered by an ACPI video header function that
should be static inline (Borislav Petkov)
- Change names of helper function converting struct fwnode_handle
pointers to either struct device_node or struct acpi_device
pointers so they don't conflict with local variable names
(Alexander Sverdlin)
- Make the hibernate core re-enable nonboot CPUs on failures to
disable them as expected (Vitaly Kuznetsov)
- Increase the default timeout of the device suspend watchdog to
prevent it from triggering too early on some systems (Takashi Iwai)
- Prevent the cpuidle powernv driver from registering idle states
with CPUIDLE_FLAG_TIMER_STOP set if CONFIG_TICK_ONESHOT is unset
which leads to boot hangs (Preeti U Murthy)"
* tag 'pm+acpi-4.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
tick/idle/powerpc: Do not register idle states with CPUIDLE_FLAG_TIMER_STOP set in periodic mode
PM / sleep: Increase default DPM watchdog timeout to 60
PM / hibernate: re-enable nonboot cpus on disable_nonboot_cpus() failure
ACPI / OF: Rename of_node() and acpi_node() to to_of_node() and to_acpi_node()
ACPI / video: Inline acpi_video_set_dmi_backlight_type
ACPI / resources: free memory on error in add_region_before()
Main excitement here is Peter Zijlstra's lockless rbtree optimization to
speed module address lookup. He found some abusers of the module lock
doing that too.
A little bit of parameter work here too; including Dan Streetman's breaking
up the big param mutex so writing a parameter can load another module (yeah,
really). Unfortunately that broke the usual suspects, !CONFIG_MODULES and
!CONFIG_SYSFS, so those fixes were appended too.
Cheers,
Rusty.
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Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull module updates from Rusty Russell:
"Main excitement here is Peter Zijlstra's lockless rbtree optimization
to speed module address lookup. He found some abusers of the module
lock doing that too.
A little bit of parameter work here too; including Dan Streetman's
breaking up the big param mutex so writing a parameter can load
another module (yeah, really). Unfortunately that broke the usual
suspects, !CONFIG_MODULES and !CONFIG_SYSFS, so those fixes were
appended too"
* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (26 commits)
modules: only use mod->param_lock if CONFIG_MODULES
param: fix module param locks when !CONFIG_SYSFS.
rcu: merge fix for Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE()
module: add per-module param_lock
module: make perm const
params: suppress unused variable error, warn once just in case code changes.
modules: clarify CONFIG_MODULE_COMPRESS help, suggest 'N'.
kernel/module.c: avoid ifdefs for sig_enforce declaration
kernel/workqueue.c: remove ifdefs over wq_power_efficient
kernel/params.c: export param_ops_bool_enable_only
kernel/params.c: generalize bool_enable_only
kernel/module.c: use generic module param operaters for sig_enforce
kernel/params: constify struct kernel_param_ops uses
sysfs: tightened sysfs permission checks
module: Rework module_addr_{min,max}
module: Use __module_address() for module_address_lookup()
module: Make the mod_tree stuff conditional on PERF_EVENTS || TRACING
module: Optimize __module_address() using a latched RB-tree
rbtree: Implement generic latch_tree
seqlock: Introduce raw_read_seqcount_latch()
...
ARCv2 is the next generation ISA from Synopsys and basis for the
HS3{4,6,8} families of processors which retain the traditional ARC mantra of
low power and configurability and are now more performant and feature rich.
HS38x is a 10 stage pipeline core which supports MMU (with huge pages) and
SMP (upto 4 cores) among other features.
+ www.synopsys.com/dw/ipdir.php?ds=arc-hs38-processor
+ http://news.synopsys.com/2014-10-14-New-DesignWare-ARC-HS38-Processor-Doubles-Performance-for-Embedded-Linux-Applications
+ http://www.embedded.com/electronics-news/4435975/Synopsys-ARC-HS38-core-gives-2X-boost-to-Linux-based-apps
- Support for ARC SDP (Software Development platform): Main Board + CPU Cards
= AXS101: CPU Card with ARC700 in silicon @ 700 MHz
= AXS103: CPU Card with HS38x in FPGA
- Refactoring of ARCompact port to accomodate new ARCv2 ISA
- Miscll updates/cleanups
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Merge tag 'arc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC architecture updates from Vineet Gupta:
- support for HS38 cores based on ARCv2 ISA
ARCv2 is the next generation ISA from Synopsys and basis for the
HS3{4,6,8} families of processors which retain the traditional ARC mantra of
low power and configurability and are now more performant and feature rich.
HS38x is a 10 stage pipeline core which supports MMU (with huge pages) and
SMP (upto 4 cores) among other features.
+ www.synopsys.com/dw/ipdir.php?ds=arc-hs38-processor
+ http://news.synopsys.com/2014-10-14-New-DesignWare-ARC-HS38-Processor-Doubles-Performance-for-Embedded-Linux-Applications
+ http://www.embedded.com/electronics-news/4435975/Synopsys-ARC-HS38-core-gives-2X-boost-to-Linux-based-apps
- support for ARC SDP (Software Development platform): Main Board + CPU Cards
= AXS101: CPU Card with ARC700 in silicon @ 700 MHz
= AXS103: CPU Card with HS38x in FPGA
- refactoring of ARCompact port to accomodate new ARCv2 ISA
- misc updates/cleanups
* tag 'arc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (72 commits)
ARC: Fix build failures for ARCompact in linux-next after ARCv2 support
ARCv2: Allow older gcc to cope with new regime of ARCv2/ARCompact support
ARCv2: [vdk] dts files and defconfig for HS38 VDK
ARCv2: [axs103] Support ARC SDP FPGA platform for HS38x cores
ARC: [axs101] Prepare for AXS103
ARCv2: [nsim*hs*] Support simulation platforms for HS38x cores
ARCv2: All bits in place, allow ARCv2 builds
ARCv2: SLC: Handle explcit flush for DMA ops (w/o IO-coherency)
ARCv2: STAR 9000837815 workaround hardware exclusive transactions livelock
ARC: Reduce bitops lines of code using macros
ARCv2: barriers
arch: conditionally define smp_{mb,rmb,wmb}
ARC: add smp barriers around atomics per Documentation/atomic_ops.txt
ARC: add compiler barrier to LLSC based cmpxchg
ARCv2: SMP: intc: IDU 2nd level intc for dynamic IRQ distribution
ARCv2: SMP: clocksource: Enable Global Real Time counter
ARCv2: SMP: ARConnect debug/robustness
ARCv2: SMP: Support ARConnect (MCIP) for Inter-Core-Interrupts et al
ARC: make plat_smp_ops weak to allow over-rides
ARCv2: clocksource: Introduce 64bit local RTC counter
...
Add two functions sysfs_create_mount_point and
sysfs_remove_mount_point that hang a permanently empty directory off
of a kobject or remove a permanently emptpy directory hanging from a
kobject. Export these new functions so modular filesystems can use
them.
Cc: stable@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Add a new function kernfs_create_empty_dir that can be used to create
directory that can not be modified.
Update the code to use make_empty_dir_inode when reporting a
permanently empty directory to the vfs.
Update the code to not allow adding to permanently empty directories.
Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Add a magic sysctl table sysctl_mount_point that when used to
create a directory forces that directory to be permanently empty.
Update the code to use make_empty_dir_inode when accessing permanently
empty directories.
Update the code to not allow adding to permanently empty directories.
Update /proc/sys/fs/binfmt_misc to be a permanently empty directory.
Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
To ensure it is safe to mount proc and sysfs I need to check if
filesystems that are mounted on top of them are mounted on truly empty
directories. Given that some directories can gain entries over time,
knowing that a directory is empty right now is insufficient.
Therefore add supporting infrastructure for permantently empty
directories that proc and sysfs can use when they create mount points
for filesystems and fs_fully_visible can use to test for permanently
empty directories to ensure that nothing will be gained by mounting a
fresh copy of proc or sysfs.
Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Allow an open fuse device to be "cloned". Userspace can create a clone by:
newfd = open("/dev/fuse", O_RDWR)
ioctl(newfd, FUSE_DEV_IOC_CLONE, &oldfd);
At this point newfd will refer to the same fuse connection as oldfd.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
Mateusz Guzik reported :
Currently obtaining a new file descriptor results in locking fdtable
twice - once in order to reserve a slot and second time to fill it.
Holding the spinlock in __fd_install() is needed in case a resize is
done, or to prevent a resize.
Mateusz provided an RFC patch and a micro benchmark :
http://people.redhat.com/~mguzik/pipebench.c
A resize is an unlikely operation in a process lifetime,
as table size is at least doubled at every resize.
We can use RCU instead of the spinlock.
__fd_install() must wait if a resize is in progress.
The resize must block new __fd_install() callers from starting,
and wait that ongoing install are finished (synchronize_sched())
resize should be attempted by a single thread to not waste resources.
rcu_sched variant is used, as __fd_install() and expand_fdtable() run
from process context.
It gives us a ~30% speedup using pipebench on a dual Intel(R) Xeon(R)
CPU E5-2696 v2 @ 2.50GHz
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Mateusz Guzik <mguzik@redhat.com>
Acked-by: Mateusz Guzik <mguzik@redhat.com>
Tested-by: Mateusz Guzik <mguzik@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This update contains:
o A new sparse on-disk inode record format to allow small extents to
be used for inode allocation when free space is fragmented.
o DAX support. This includes minor changes to the DAX core code to
fix problems with lock ordering and bufferhead mapping abuse.
o transaction commit interface cleanup
o removal of various unnecessary XFS specific type definitions
o cleanup and optimisation of freelist preparation before allocation
o various minor cleanups
o bug fixes for
- transaction reservation leaks
- incorrect inode logging in unwritten extent conversion
- mmap lock vs freeze ordering
- remote symlink mishandling
- attribute fork removal issues.
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Merge tag 'xfs-for-linus-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
Pul xfs updates from Dave Chinner:
"There's a couple of small API changes to the core DAX code which
required small changes to the ext2 and ext4 code bases, but otherwise
everything is within the XFS codebase.
This update contains:
- A new sparse on-disk inode record format to allow small extents to
be used for inode allocation when free space is fragmented.
- DAX support. This includes minor changes to the DAX core code to
fix problems with lock ordering and bufferhead mapping abuse.
- transaction commit interface cleanup
- removal of various unnecessary XFS specific type definitions
- cleanup and optimisation of freelist preparation before allocation
- various minor cleanups
- bug fixes for
- transaction reservation leaks
- incorrect inode logging in unwritten extent conversion
- mmap lock vs freeze ordering
- remote symlink mishandling
- attribute fork removal issues"
* tag 'xfs-for-linus-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (49 commits)
xfs: don't truncate attribute extents if no extents exist
xfs: clean up XFS_MIN_FREELIST macros
xfs: sanitise error handling in xfs_alloc_fix_freelist
xfs: factor out free space extent length check
xfs: xfs_alloc_fix_freelist() can use incore perag structures
xfs: remove xfs_caddr_t
xfs: use void pointers in log validation helpers
xfs: return a void pointer from xfs_buf_offset
xfs: remove inst_t
xfs: remove __psint_t and __psunsigned_t
xfs: fix remote symlinks on V5/CRC filesystems
xfs: fix xfs_log_done interface
xfs: saner xfs_trans_commit interface
xfs: remove the flags argument to xfs_trans_cancel
xfs: pass a boolean flag to xfs_trans_free_items
xfs: switch remaining xfs_trans_dup users to xfs_trans_roll
xfs: check min blks for random debug mode sparse allocations
xfs: fix sparse inodes 32-bit compile failure
xfs: add initial DAX support
xfs: add DAX IO path support
...
Pull btrfs updates from Chris Mason:
"Outside of our usual batch of fixes, this integrates the subvolume
quota updates that Qu Wenruo from Fujitsu has been working on for a
few releases now. He gets an extra gold star for making btrfs smaller
this time, and fixing a number of quota corners in the process.
Dave Sterba tested and integrated Anand Jain's sysfs improvements.
Outside of exporting a symbol (ack'd by Greg) these are all internal
to btrfs and it's mostly cleanups and fixes. Anand also attached some
of our sysfs objects to our internal device management structs instead
of an object off the super block. It will make device management
easier overall and it's a better fit for how the sysfs files are used.
None of the existing sysfs files are moved around.
Thanks for all the fixes everyone"
* 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (87 commits)
btrfs: delayed-ref: double free in btrfs_add_delayed_tree_ref()
Btrfs: Check if kobject is initialized before put
lib: export symbol kobject_move()
Btrfs: sysfs: add support to show replacing target in the sysfs
Btrfs: free the stale device
Btrfs: use received_uuid of parent during send
Btrfs: fix use-after-free in btrfs_replay_log
btrfs: wait for delayed iputs on no space
btrfs: qgroup: Make snapshot accounting work with new extent-oriented qgroup.
btrfs: qgroup: Add the ability to skip given qgroup for old/new_roots.
btrfs: ulist: Add ulist_del() function.
btrfs: qgroup: Cleanup the old ref_node-oriented mechanism.
btrfs: qgroup: Switch self test to extent-oriented qgroup mechanism.
btrfs: qgroup: Switch to new extent-oriented qgroup mechanism.
btrfs: qgroup: Switch rescan to new mechanism.
btrfs: qgroup: Add new qgroup calculation function btrfs_qgroup_account_extents().
btrfs: backref: Add special time_seq == (u64)-1 case for btrfs_find_all_roots().
btrfs: qgroup: Add new function to record old_roots.
btrfs: qgroup: Record possible quota-related extent for qgroup.
btrfs: qgroup: Add function qgroup_update_counters().
...
To be consistent with other kernel interface namings, rename
of_get_named_gen_pool() to of_gen_pool_get(). In the original function
name "_named" suffix references to a device tree property, which contains
a phandle to a device and the corresponding device driver is assumed to
register a gen_pool object.
Due to a weak relation and to avoid any confusion (e.g. in future
possible scenario if gen_pool objects are named) the suffix is removed.
[sfr@canb.auug.org.au: crypto/marvell/cesa - fix up for of_get_named_gen_pool() rename]
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
To be consistent with other genalloc interface namings, rename
dev_get_gen_pool() to gen_pool_get(). The original omitted "dev_" prefix
is removed, since it points to argument type of the function, and so it
does not bring any useful information.
[akpm@linux-foundation.org: update arch/arm/mach-socfpga/pm.c]
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Mark Brown <broonie@kernel.org>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Alan Tull <atull@opensource.altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use kvfree() instead of open-coding it.
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
do_device_access() takes a separate parameter to indicate the direction of
data transfer, which it used to use to select the appropriate function out
of sg_pcopy_{to,from}_buffer(). However these two functions now have
So this patch makes it bypass these wrappers and call the underlying
function sg_copy_buffer() directly; this has the same calling style as
do_device_access() i.e. a separate direction-of-transfer parameter and no
pointers-to-const, so skipping the wrappers not only eliminates the
warning, it also make the code simpler :)
[akpm@linux-foundation.org: fix very broken build]
Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The 'buf' parameter of sg(p)copy_from_buffer() can and should be
const-qualified, although because of the shared implementation of
_to_buffer() and _from_buffer(), we have to cast this away internally.
This means that callers who have a 'const' buffer containing the data to
be copied to the sg-list no longer have to cast away the const-ness
themselves. It also enables improved coverage by code analysis tools.
Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit f06e5153f4 ("kernel/panic.c: add "crash_kexec_post_notifiers"
option for kdump after panic_notifers") introduced
"crash_kexec_post_notifiers" kernel boot option, which toggles wheather
panic() calls crash_kexec() before panic_notifiers and dump kmsg or after.
The problem is that the commit overlooks panic_on_oops kernel boot option.
If it is enabled, crash_kexec() is called directly without going through
panic() in oops path.
To fix this issue, this patch adds a check to "crash_kexec_post_notifiers"
in the condition of kexec_should_crash().
Also, put a comment in kexec_should_crash() to explain not obvious things
on this patch.
Signed-off-by: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Acked-by: Baoquan He <bhe@redhat.com>
Tested-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Cc: Baoquan He <bhe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Waiman Long reported that 24TB machines hit OOM during basic setup when
struct page initialisation was deferred. One approach is to initialise
memory on demand but it interferes with page allocator paths. This patch
creates dedicated threads to initialise memory before basic setup. It
then blocks on a rw_semaphore until completion as a wait_queue and counter
is overkill. This may be slower to boot but it's simplier overall and
also gets rid of a section mangling which existed so kswapd could do the
initialisation.
[akpm@linux-foundation.org: include rwsem.h, use DECLARE_RWSEM, fix comment, remove unneeded cast]
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Waiman Long <waiman.long@hp.com
Cc: Nathan Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Scott Norton <scott.norton@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch initalises all low memory struct pages and 2G of the highest
zone on each node during memory initialisation if
CONFIG_DEFERRED_STRUCT_PAGE_INIT is set. That config option cannot be set
but will be available in a later patch. Parallel initialisation of struct
page depends on some features from memory hotplug and it is necessary to
alter alter section annotations.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Nate Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
early_pfn_in_nid() and meminit_pfn_in_nid() are small functions that are
unnecessarily visible outside memory initialisation. As well as
unnecessary visibility, it's unnecessary function call overhead when
initialising pages. This patch moves the helpers inline.
[akpm@linux-foundation.org: fix build]
[mhocko@suse.cz: fix build]
Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Nate Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
__early_pfn_to_nid() use static variables to cache recent lookups as
memblock lookups are very expensive but it assumes that memory
initialisation is single-threaded. Parallel initialisation of struct
pages will break that assumption so this patch makes __early_pfn_to_nid()
SMP-safe by requiring the caller to cache recent search information.
early_pfn_to_nid() keeps the same interface but is only safe to use early
in boot due to the use of a global static variable. meminit_pfn_in_nid()
is an SMP-safe version that callers must maintain their own state for.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Nate Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently each page struct is set as reserved upon initialization. This
patch leaves the reserved bit clear and only sets the reserved bit when it
is known the memory was allocated by the bootmem allocator. This makes it
easier to distinguish between uninitialised struct pages and reserved
struct pages in later patches.
Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Nathan Zimmer <nzimmer@sgi.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Struct page initialisation had been identified as one of the reasons why
large machines take a long time to boot. Patches were posted a long time ago
to defer initialisation until they were first used. This was rejected on
the grounds it should not be necessary to hurt the fast paths. This series
reuses much of the work from that time but defers the initialisation of
memory to kswapd so that one thread per node initialises memory local to
that node.
After applying the series and setting the appropriate Kconfig variable I
see this in the boot log on a 64G machine
[ 7.383764] kswapd 0 initialised deferred memory in 188ms
[ 7.404253] kswapd 1 initialised deferred memory in 208ms
[ 7.411044] kswapd 3 initialised deferred memory in 216ms
[ 7.411551] kswapd 2 initialised deferred memory in 216ms
On a 1TB machine, I see
[ 8.406511] kswapd 3 initialised deferred memory in 1116ms
[ 8.428518] kswapd 1 initialised deferred memory in 1140ms
[ 8.435977] kswapd 0 initialised deferred memory in 1148ms
[ 8.437416] kswapd 2 initialised deferred memory in 1148ms
Once booted the machine appears to work as normal. Boot times were measured
from the time shutdown was called until ssh was available again. In the
64G case, the boot time savings are negligible. On the 1TB machine, the
savings were 16 seconds.
Nate Zimmer said:
: On an older 8 TB box with lots and lots of cpus the boot time, as
: measure from grub to login prompt, the boot time improved from 1484
: seconds to exactly 1000 seconds.
Waiman Long said:
: I ran a bootup timing test on a 12-TB 16-socket IvyBridge-EX system. From
: grub menu to ssh login, the bootup time was 453s before the patch and 265s
: after the patch - a saving of 188s (42%).
Daniel Blueman said:
: On a 7TB, 1728-core NumaConnect system with 108 NUMA nodes, we're seeing
: stock 4.0 boot in 7136s. This drops to 2159s, or a 70% reduction with
: this patchset. Non-temporal PMD init (https://lkml.org/lkml/2015/4/23/350)
: drops this to 1045s.
This patch (of 13):
As part of initializing struct page's in 2MiB chunks, we noticed that at
the end of free_all_bootmem(), there was nothing which had forced the
reserved/allocated 4KiB pages to be initialized.
This helper function will be used for that expansion.
Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Nate Zimmer <nzimmer@sgi.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Move the definition of __pmem outside of CONFIG_SPARSE_RCU_POINTER to fix:
drivers/nvdimm/pmem.c:198:17: sparse: too many arguments for function __builtin_expect
drivers/nvdimm/pmem.c:36:33: sparse: expected ; at end of declaration
drivers/nvdimm/pmem.c:48:21: sparse: void declaration
...due to __pmem failing to be defined in some configurations when
CONFIG_SPARSE_RCU_POINTER=y.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
u
This fixes breakage to iproute2 build with recent kernel headers
caused by:
commit a263653ed7
Author: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Wed Jun 17 10:28:27 2015 -0500
netfilter: don't pull include/linux/netfilter.h from netns headers
The issue is that definitions in linux/in.h overlap with those
in netinet/in.h. This patch solves this by introducing the same
mechanism as was used to solve the same problem with linux/in6.h
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
v2: remove unrelated whitespace change, fix C comment
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
A mixed bag
- a few bug fixes
- some performance improvement that decrease lock contention
- some clean-up
Nothing major.
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Merge tag 'md/4.2' of git://neil.brown.name/md
Pull md updates from Neil Brown:
"A mixed bag
- a few bug fixes
- some performance improvement that decrease lock contention
- some clean-up
Nothing major"
* tag 'md/4.2' of git://neil.brown.name/md:
md: clear Blocked flag on failed devices when array is read-only.
md: unlock mddev_lock on an error path.
md: clear mddev->private when it has been freed.
md: fix a build warning
md/raid5: ignore released_stripes check
md/raid5: per hash value and exclusive wait_for_stripe
md/raid5: split wait_for_stripe and introduce wait_for_quiescent
wait: introduce wait_event_exclusive_cmd
md: convert to kstrto*()
md/raid10: make sync_request_write() call bio_copy_data()
This patch restores the slab creation sequence that was broken by commit
4066c33d03 and also reverts the portions that introduced the
KMALLOC_LOOP_XXX macros. Those can never really work since the slab creation
is much more complex than just going from a minimum to a maximum number.
The latest upstream kernel boots cleanly on my machine with a 64 bit x86
configuration under KVM using either SLAB or SLUB.
Fixes: 4066c33d03 ("support the slub_debug boot option")
Reported-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
4 drivers / enabling modules:
NFIT:
Instantiates an "nvdimm bus" with the core and registers memory devices
(NVDIMMs) enumerated by the ACPI 6.0 NFIT (NVDIMM Firmware Interface
table). After registering NVDIMMs the NFIT driver then registers
"region" devices. A libnvdimm-region defines an access mode and the
boundaries of persistent memory media. A region may span multiple
NVDIMMs that are interleaved by the hardware memory controller. In
turn, a libnvdimm-region can be carved into a "namespace" device and
bound to the PMEM or BLK driver which will attach a Linux block device
(disk) interface to the memory.
PMEM:
Initially merged in v4.1 this driver for contiguous spans of persistent
memory address ranges is re-worked to drive PMEM-namespaces emitted by
the libnvdimm-core. In this update the PMEM driver, on x86, gains the
ability to assert that writes to persistent memory have been flushed all
the way through the caches and buffers in the platform to persistent
media. See memcpy_to_pmem() and wmb_pmem().
BLK:
This new driver enables access to persistent memory media through "Block
Data Windows" as defined by the NFIT. The primary difference of this
driver to PMEM is that only a small window of persistent memory is
mapped into system address space at any given point in time. Per-NVDIMM
windows are reprogrammed at run time, per-I/O, to access different
portions of the media. BLK-mode, by definition, does not support DAX.
BTT:
This is a library, optionally consumed by either PMEM or BLK, that
converts a byte-accessible namespace into a disk with atomic sector
update semantics (prevents sector tearing on crash or power loss). The
sinister aspect of sector tearing is that most applications do not know
they have a atomic sector dependency. At least today's disk's rarely
ever tear sectors and if they do one almost certainly gets a CRC error
on access. NVDIMMs will always tear and always silently. Until an
application is audited to be robust in the presence of sector-tearing
the usage of BTT is recommended.
Thanks to: Ross Zwisler, Jeff Moyer, Vishal Verma, Christoph Hellwig,
Ingo Molnar, Neil Brown, Boaz Harrosh, Robert Elliott, Matthew Wilcox,
Andy Rudoff, Linda Knippers, Toshi Kani, Nicholas Moulin, Rafael
Wysocki, and Bob Moore.
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Merge tag 'libnvdimm-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm
Pull libnvdimm subsystem from Dan Williams:
"The libnvdimm sub-system introduces, in addition to the
libnvdimm-core, 4 drivers / enabling modules:
NFIT:
Instantiates an "nvdimm bus" with the core and registers memory
devices (NVDIMMs) enumerated by the ACPI 6.0 NFIT (NVDIMM Firmware
Interface table).
After registering NVDIMMs the NFIT driver then registers "region"
devices. A libnvdimm-region defines an access mode and the
boundaries of persistent memory media. A region may span multiple
NVDIMMs that are interleaved by the hardware memory controller. In
turn, a libnvdimm-region can be carved into a "namespace" device and
bound to the PMEM or BLK driver which will attach a Linux block
device (disk) interface to the memory.
PMEM:
Initially merged in v4.1 this driver for contiguous spans of
persistent memory address ranges is re-worked to drive
PMEM-namespaces emitted by the libnvdimm-core.
In this update the PMEM driver, on x86, gains the ability to assert
that writes to persistent memory have been flushed all the way
through the caches and buffers in the platform to persistent media.
See memcpy_to_pmem() and wmb_pmem().
BLK:
This new driver enables access to persistent memory media through
"Block Data Windows" as defined by the NFIT. The primary difference
of this driver to PMEM is that only a small window of persistent
memory is mapped into system address space at any given point in
time.
Per-NVDIMM windows are reprogrammed at run time, per-I/O, to access
different portions of the media. BLK-mode, by definition, does not
support DAX.
BTT:
This is a library, optionally consumed by either PMEM or BLK, that
converts a byte-accessible namespace into a disk with atomic sector
update semantics (prevents sector tearing on crash or power loss).
The sinister aspect of sector tearing is that most applications do
not know they have a atomic sector dependency. At least today's
disk's rarely ever tear sectors and if they do one almost certainly
gets a CRC error on access. NVDIMMs will always tear and always
silently. Until an application is audited to be robust in the
presence of sector-tearing the usage of BTT is recommended.
Thanks to: Ross Zwisler, Jeff Moyer, Vishal Verma, Christoph Hellwig,
Ingo Molnar, Neil Brown, Boaz Harrosh, Robert Elliott, Matthew Wilcox,
Andy Rudoff, Linda Knippers, Toshi Kani, Nicholas Moulin, Rafael
Wysocki, and Bob Moore"
* tag 'libnvdimm-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm: (33 commits)
arch, x86: pmem api for ensuring durability of persistent memory updates
libnvdimm: Add sysfs numa_node to NVDIMM devices
libnvdimm: Set numa_node to NVDIMM devices
acpi: Add acpi_map_pxm_to_online_node()
libnvdimm, nfit: handle unarmed dimms, mark namespaces read-only
pmem: flag pmem block devices as non-rotational
libnvdimm: enable iostat
pmem: make_request cleanups
libnvdimm, pmem: fix up max_hw_sectors
libnvdimm, blk: add support for blk integrity
libnvdimm, btt: add support for blk integrity
fs/block_dev.c: skip rw_page if bdev has integrity
libnvdimm: Non-Volatile Devices
tools/testing/nvdimm: libnvdimm unit test infrastructure
libnvdimm, nfit, nd_blk: driver for BLK-mode access persistent memory
nd_btt: atomic sector updates
libnvdimm: infrastructure for btt devices
libnvdimm: write blk label set
libnvdimm: write pmem label set
libnvdimm: blk labels and namespace instantiation
...
This time we have support for few new devices, few new features and odd
fixes spread thru the subsystem.
New devices added
- support for CSRatlas7 dma controller
- Allwinner H3(sun8i) controller
- TI DMA crossbar driver on DRA7x
- new pxa driver
New features added:
- memset support is bought back now that we have a user in xdmac controller
- interleaved transfers support different source and destination strides
- supporting DMA routers and configuration thru DT
- support for reusing descriptors
- xdmac memset and interleaved transfer support
- hdmac support for interleaved transfers
- omap-dma support for memcpy
Others
- Constify platform_device_id
- mv_xor fixes and improvements
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Merge tag 'dmaengine-4.2-rc1' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine updates from Vinod Koul:
"This time we have support for few new devices, few new features and
odd fixes spread thru the subsystem.
New devices added:
- support for CSRatlas7 dma controller
- Allwinner H3(sun8i) controller
- TI DMA crossbar driver on DRA7x
- new pxa driver
New features added:
- memset support is bought back now that we have a user in xdmac controller
- interleaved transfers support different source and destination strides
- supporting DMA routers and configuration thru DT
- support for reusing descriptors
- xdmac memset and interleaved transfer support
- hdmac support for interleaved transfers
- omap-dma support for memcpy
Others:
- Constify platform_device_id
- mv_xor fixes and improvements"
* tag 'dmaengine-4.2-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (46 commits)
dmaengine: xgene: fix file permission
dmaengine: fsl-edma: clear pending interrupts on initialization
dmaengine: xdmac: Add memset support
Documentation: dmaengine: document DMA_CTRL_ACK
dmaengine: virt-dma: don't always free descriptor upon completion
dmaengine: Revert "drivers/dma: remove unused support for MEMSET operations"
dmaengine: hdmac: Implement interleaved transfers
dmaengine: Move icg helpers to global header
dmaengine: mv_xor: improve descriptors list handling and reduce locking
dmaengine: mv_xor: Enlarge descriptor pool size
dmaengine: mv_xor: add support for a38x command in descriptor mode
dmaengine: mv_xor: Rename function for consistent naming
dmaengine: mv_xor: bug fix for racing condition in descriptors cleanup
dmaengine: pl330: fix wording in mcbufsz message
dmaengine: sirf: add CSRatlas7 SoC support
dmaengine: xgene-dma: Fix "incorrect type in assignement" warnings
dmaengine: fix kernel-doc documentation
dmaengine: pxa_dma: add support for legacy transition
dmaengine: pxa_dma: add debug information
dmaengine: pxa: add pxa dmaengine driver
...
Currently, watchdog subsystem require the misc subsystem to
register a watchdog. This may not be the case in case of an
early registration of a watchdog, which can be required when
the watchdog cannot be disabled.
This patch introduces a deferral mechanism to remove this requirement.
Signed-off-by: Jean-Baptiste Theou <jtheou@adeneo-embedded.us>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
As Dan Streetman points out, the entire point of locking for is to
stop sysfs accesses, so they're elided entirely in the !SYSFS case.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Pull security subsystem updates from James Morris:
"The main change in this kernel is Casey's generalized LSM stacking
work, which removes the hard-coding of Capabilities and Yama stacking,
allowing multiple arbitrary "small" LSMs to be stacked with a default
monolithic module (e.g. SELinux, Smack, AppArmor).
See
https://lwn.net/Articles/636056/
This will allow smaller, simpler LSMs to be incorporated into the
mainline kernel and arbitrarily stacked by users. Also, this is a
useful cleanup of the LSM code in its own right"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (38 commits)
tpm, tpm_crb: fix le64_to_cpu conversions in crb_acpi_add()
vTPM: set virtual device before passing to ibmvtpm_reset_crq
tpm_ibmvtpm: remove unneccessary message level.
ima: update builtin policies
ima: extend "mask" policy matching support
ima: add support for new "euid" policy condition
ima: fix ima_show_template_data_ascii()
Smack: freeing an error pointer in smk_write_revoke_subj()
selinux: fix setting of security labels on NFS
selinux: Remove unused permission definitions
selinux: enable genfscon labeling for sysfs and pstore files
selinux: enable per-file labeling for debugfs files.
selinux: update netlink socket classes
signals: don't abuse __flush_signals() in selinux_bprm_committed_creds()
selinux: Print 'sclass' as string when unrecognized netlink message occurs
Smack: allow multiple labels in onlycap
Smack: fix seq operations in smackfs
ima: pass iint to ima_add_violation()
ima: wrap event related data to the new ima_event_data structure
integrity: add validity checks for 'path' parameter
...
Pull MIPS updates from Ralf Baechle:
- Improvements to the tlb_dump code
- KVM fixes
- Add support for appended DTB
- Minor improvements to the R12000 support
- Minor improvements to the R12000 support
- Various platform improvments for BCM47xx
- The usual pile of minor cleanups
- A number of BPF fixes and improvments
- Some improvments to the support for R3000 and DECstations
- Some improvments to the ATH79 platform support
- A major patchset for the JZ4740 SOC adding support for the CI20 platform
- Add support for the Pistachio SOC
- Minor BMIPS/BCM63xx platform support improvments.
- Avoid "SYNC 0" as memory barrier when unlocking spinlocks
- Add support for the XWR-1750 board.
- Paul's __cpuinit/__cpuinitdata cleanups.
- New Malta CPU board support large memory so enable ZONE_DMA32.
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (131 commits)
MIPS: spinlock: Adjust arch_spin_lock back-off time
MIPS: asmmacro: Ensure 64-bit FP registers are used with MSA
MIPS: BCM47xx: Simplify handling SPROM revisions
MIPS: Cobalt Don't use module_init in non-modular MTD registration.
MIPS: BCM47xx: Move NVRAM driver to the drivers/firmware/
MIPS: use for_each_sg()
MIPS: BCM47xx: Don't select BCMA_HOST_PCI
MIPS: BCM47xx: Add helper variable for storing NVRAM length
MIPS: IRQ/IP27: Move IRQ allocation API to platform code.
MIPS: Replace smp_mb with release barrier function in unlocks.
MIPS: i8259: DT support
MIPS: Malta: Basic DT plumbing
MIPS: include errno.h for ENODEV in mips-cm.h
MIPS: Define GCR_GIC_STATUS register fields
MIPS: BPF: Introduce BPF ASM helpers
MIPS: BPF: Use BPF register names to describe the ABI
MIPS: BPF: Move register definition to the BPF header
MIPS: net: BPF: Replace RSIZE with SZREG
MIPS: BPF: Free up some callee-saved registers
MIPS: Xtalk: Update xwidget.h with known Xtalk device numbers
...
Pull nfsd updates from Bruce Fields:
"A relatively quiet cycle, with a mix of cleanup and smaller bugfixes"
* 'for-4.2' of git://linux-nfs.org/~bfields/linux: (24 commits)
sunrpc: use sg_init_one() in krb5_rc4_setup_enc/seq_key()
nfsd: wrap too long lines in nfsd4_encode_read
nfsd: fput rd_file from XDR encode context
nfsd: take struct file setup fully into nfs4_preprocess_stateid_op
nfsd: refactor nfs4_preprocess_stateid_op
nfsd: clean up raparams handling
nfsd: use swap() in sort_pacl_range()
rpcrdma: Merge svcrdma and xprtrdma modules into one
svcrdma: Add a separate "max data segs macro for svcrdma
svcrdma: Replace GFP_KERNEL in a loop with GFP_NOFAIL
svcrdma: Keep rpcrdma_msg fields in network byte-order
svcrdma: Fix byte-swapping in svc_rdma_sendto.c
nfsd: Update callback sequnce id only CB_SEQUENCE success
nfsd: Reset cb_status in nfsd4_cb_prepare() at retrying
svcrdma: Remove svc_rdma_xdr_decode_deferred_req()
SUNRPC: Move EXPORT_SYMBOL for svc_process
uapi/nfs: Add NFSv4.1 ACL definitions
nfsd: Remove dead declarations
nfsd: work around a gcc-5.1 warning
nfsd: Checking for acl support does not require fetching any acls
...
Make it so, by checking the return value for NFS4ERR_MOTSUPP and
caching the information as a server capability.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Pull workqueue updates from Tejun Heo:
"Most of the changes are around implementing and fixing fallouts from
sysfs and internal interface to limit the CPUs available to all
unbound workqueues to help isolating CPUs. It needs more work as
ordered workqueues can roam unrestricted but still is a significant
improvement"
* 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: fix typos in comments
workqueue: move flush_scheduled_work() to workqueue.h
workqueue: remove the lock from wq_sysfs_prep_attrs()
workqueue: remove the declaration of copy_workqueue_attrs()
workqueue: ensure attrs changes are properly synchronized
workqueue: separate out and refactor the locking of applying attrs
workqueue: simplify wq_update_unbound_numa()
workqueue: wq_pool_mutex protects the attrs-installation
workqueue: fix a typo
workqueue: function name in the comment differs from the real function name
workqueue: fix trivial typo in Documentation/workqueue.txt
workqueue: Allow modifying low level unbound workqueue cpumask
workqueue: Create low-level unbound workqueues cpumask
workqueue: split apply_workqueue_attrs() into 3 stages
Pull cgroup updates from Tejun Heo:
- threadgroup_lock got reorganized so that its users can pick the
actual locking mechanism to use. Its only user - cgroups - is
updated to use a percpu_rwsem instead of per-process rwsem.
This makes things a bit lighter on hot paths and allows cgroups to
perform and fail multi-task (a process) migrations atomically.
Multi-task migrations are used in several places including the
unified hierarchy.
- Delegation rule and documentation added to unified hierarchy. This
will likely be the last interface update from the cgroup core side
for unified hierarchy before lifting the devel mask.
- Some groundwork for the pids controller which is scheduled to be
merged in the coming devel cycle.
* 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: add delegation section to unified hierarchy documentation
cgroup: require write perm on common ancestor when moving processes on the default hierarchy
cgroup: separate out cgroup_procs_write_permission() from __cgroup_procs_write()
kernfs: make kernfs_get_inode() public
MAINTAINERS: add a cgroup core co-maintainer
cgroup: fix uninitialised iterator in for_each_subsys_which
cgroup: replace explicit ss_mask checking with for_each_subsys_which
cgroup: use bitmask to filter for_each_subsys
cgroup: add seq_file forward declaration for struct cftype
cgroup: simplify threadgroup locking
sched, cgroup: replace signal_struct->group_rwsem with a global percpu_rwsem
sched, cgroup: reorganize threadgroup locking
cgroup: switch to unsigned long for bitmasks
cgroup: reorganize include/linux/cgroup.h
cgroup: separate out include/linux/cgroup-defs.h
cgroup: fix some comment typos
Here's the big USB patchset for 4.2-rc1. As is normal these days, the
majority of changes are in the gadget drivers, with a bunch of other
small driver changes.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB updates from Greg KH:
"Here's the big USB patchset for 4.2-rc1. As is normal these days, the
majority of changes are in the gadget drivers, with a bunch of other
small driver changes.
All of these have been in linux-next with no reported issues"
* tag 'usb-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (175 commits)
usb: dwc3: Use ASCII space in Kconfig
usb: chipidea: add work-around for Marvell HSIC PHY startup
usb: chipidea: allow multiple instances to use default ci_default_pdata
dt-bindings: Consolidate ChipIdea USB ci13xxx bindings
phy: add Marvell HSIC 28nm PHY
phy: Add Marvell USB 2.0 OTG 28nm PHY
dt-bindings: Add Marvell PXA1928 USB and HSIC PHY bindings
USB: ssb: use devm_kzalloc
USB: ssb: fix error handling in ssb_hcd_create_pdev()
usb: isp1760: check for null return from kzalloc
cdc-acm: Add support of ATOL FPrint fiscal printers
usb: chipidea: usbmisc_imx: Remove unneeded semicolon
USB: usbtmc: add device quirk for Rigol DS6104
USB: serial: mos7840: Use setup_timer
phy: twl4030-usb: add ABI documentation
phy: twl4030-usb: remove incorrect pm_runtime_get_sync() in probe function.
phy: twl4030-usb: remove pointless 'suspended' test in 'suspend' callback.
phy: twl4030-usb: make runtime pm more reliable.
drivers:usb:fsl: Fix compilation error for fsl ehci drv
usb: renesas_usbhs: Don't disable the pipe if Control write status stage
...
Here's the tty and serial driver patches for 4.2-rc1.
A number of individual driver updates, some code cleanups, and other
minor things, full details in the shortlog.
All have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here's the tty and serial driver patches for 4.2-rc1.
A number of individual driver updates, some code cleanups, and other
minor things, full details in the shortlog.
All have been in linux-next for a while with no reported issues"
* tag 'tty-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (152 commits)
Doc: serial-rs485.txt: update RS485 driver interface
Doc: tty.txt: remove mention of the BKL
MAINTAINERS: tty: add serial docs directory
serial: sprd: check for NULL after calling devm_clk_get
serial: 8250_pci: Correct uartclk for xr17v35x expansion chips
serial: 8250_pci: Add support for 12 port Exar boards
serial: 8250_uniphier: add bindings document for UniPhier UART
serial: core: cleanup in uart_get_baud_rate()
serial: stm32-usart: Add STM32 USART Driver
tty/serial: kill off set_irq_flags usage
tty: move linux/gsmmux.h to uapi
doc: dt: add documentation for nxp,lpc1850-uart
serial: 8250: add LPC18xx/43xx UART driver
serial: 8250_uniphier: add UniPhier serial driver
serial: 8250_dw: support ACPI platforms with integrated DMA engine
serial: of_serial: check the return value of clk_prepare_enable()
serial: of_serial: use devm_clk_get() instead of clk_get()
serial: earlycon: Add support for big-endian MMIO accesses
serial: sirf: use hrtimer for data rx
serial: sirf: correct the fifo empty_bit
...
Here's the big, really big, staging tree patches for 4.2-rc1.
Loads of stuff in here, almost all just coding style fixes / churn, and
a few new drivers as well, one of which I just disabled from the build a
few minutes ago due to way too many build warnings.
Other than the one "disable this driver" patch, all of these have been
in linux-next for quite a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
"Here's the big, really big, staging tree patches for 4.2-rc1.
Loads of stuff in here, almost all just coding style fixes / churn,
and a few new drivers as well, one of which I just disabled from the
build a few minutes ago due to way too many build warnings.
Other than the one "disable this driver" patch, all of these have been
in linux-next for quite a while with no reported issues"
* tag 'staging-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1163 commits)
staging: wilc1000: disable driver due to build warnings
Staging: rts5208: fix CHANGE_LINK_STATE value
Staging: sm750fb: ddk750_swi2c.c: Insert spaces before parenthesis
Staging: sm750fb: ddk750_swi2c.c: Place braces on correct lines
Staging: sm750fb: ddk750_swi2c.c: Insert spaces around operators
Staging: sm750fb: ddk750_swi2c.c: Replace spaces with tabs
Staging: sm750fb: ddk750_swi2c.h: Shorten lines to under 80 characters
Staging: sm750fb: ddk750_swi2c.h: Replace spaces with tabs
Staging: sm750fb: modedb.h: Shorten lines to under 80 characters
Staging: sm750fb: modedb.h: Replace spaces with tabs
staging: comedi: addi_apci_3120: rename 'this_board' variables
staging: comedi: addi_apci_1516: rename 'this_board' variables
staging: comedi: ni_atmio: cleanup ni_getboardtype()
staging: comedi: vmk80xx: sanity check context used to get the boardinfo
staging: comedi: vmk80xx: rename 'boardinfo' variables
staging: comedi: dt3000: rename 'this_board' variables
staging: comedi: adv_pci_dio: rename 'this_board' variables
staging: comedi: cb_pcidas64: rename 'thisboard' variables
staging: comedi: cb_pcidas: rename 'thisboard' variables
staging: comedi: me4000: rename 'thisboard' variables
...
Here is the driver core / firmware changes for 4.2-rc1.
A number of small changes all over the place in the driver core, and in
the firmware subsystem. Nothing really major, full details in the
shortlog. Some of it is a bit of churn, given that the platform driver
probing changes was found to not work well, so they were reverted.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the driver core / firmware changes for 4.2-rc1.
A number of small changes all over the place in the driver core, and
in the firmware subsystem. Nothing really major, full details in the
shortlog. Some of it is a bit of churn, given that the platform
driver probing changes was found to not work well, so they were
reverted.
All of these have been in linux-next for a while with no reported
issues"
* tag 'driver-core-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (31 commits)
Revert "base/platform: Only insert MEM and IO resources"
Revert "base/platform: Continue on insert_resource() error"
Revert "of/platform: Use platform_device interface"
Revert "base/platform: Remove code duplication"
firmware: add missing kfree for work on async call
fs: sysfs: don't pass count == 0 to bin file readers
base:dd - Fix for typo in comment to function driver_deferred_probe_trigger().
base/platform: Remove code duplication
of/platform: Use platform_device interface
base/platform: Continue on insert_resource() error
base/platform: Only insert MEM and IO resources
firmware: use const for remaining firmware names
firmware: fix possible use after free on name on asynchronous request
firmware: check for file truncation on direct firmware loading
firmware: fix __getname() missing failure check
drivers: of/base: move of_init to driver_init
drivers/base: cacheinfo: fix annoying typo when DT nodes are absent
sysfs: disambiguate between "error code" and "failure" in comments
driver-core: fix build for !CONFIG_MODULES
driver-core: make __device_attach() static
...
Here's the big char/misc driver pull request for 4.2-rc1.
Lots of mei, extcon, coresight, uio, mic, and other driver updates in
here. Full details in the shortlog. All of these have been in
linux-next for some time with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here's the big char/misc driver pull request for 4.2-rc1.
Lots of mei, extcon, coresight, uio, mic, and other driver updates in
here. Full details in the shortlog. All of these have been in
linux-next for some time with no reported problems"
* tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (176 commits)
mei: me: wait for power gating exit confirmation
mei: reset flow control on the last client disconnection
MAINTAINERS: mei: add mei_cl_bus.h to maintained file list
misc: sram: sort and clean up included headers
misc: sram: move reserved block logic out of probe function
misc: sram: add private struct device and virt_base members
misc: sram: report correct SRAM pool size
misc: sram: bump error message level on unclean driver unbinding
misc: sram: fix device node reference leak on error
misc: sram: fix enabled clock leak on error path
misc: mic: Fix reported static checker warning
misc: mic: Fix randconfig build error by including errno.h
uio: pruss: Drop depends on ARCH_DAVINCI_DA850 from config
uio: pruss: Add CONFIG_HAS_IOMEM dependence
uio: pruss: Include <linux/sizes.h>
extcon: Redefine the unique id of supported external connectors without 'enum extcon' type
char:xilinx_hwicap:buffer_icap - change 1/0 to true/false for bool type variable in function buffer_icap_set_configuration().
Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion
parport: check exclusive access before register
w1: use correct lock on error in w1_seq_show()
...
"monitonic raw". Also some enhancements to make the ring buffer even
faster. But the biggest and most noticeable change is the renaming of
the ftrace* files, structures and variables that have to deal with
trace events.
Over the years I've had several developers tell me about their confusion
with what ftrace is compared to events. Technically, "ftrace" is the
infrastructure to do the function hooks, which include tracing and also
helps with live kernel patching. But the trace events are a separate
entity altogether, and the files that affect the trace events should
not be named "ftrace". These include:
include/trace/ftrace.h -> include/trace/trace_events.h
include/linux/ftrace_event.h -> include/linux/trace_events.h
Also, functions that are specific for trace events have also been renamed:
ftrace_print_*() -> trace_print_*()
(un)register_ftrace_event() -> (un)register_trace_event()
ftrace_event_name() -> trace_event_name()
ftrace_trigger_soft_disabled()-> trace_trigger_soft_disabled()
ftrace_define_fields_##call() -> trace_define_fields_##call()
ftrace_get_offsets_##call() -> trace_get_offsets_##call()
Structures have been renamed:
ftrace_event_file -> trace_event_file
ftrace_event_{call,class} -> trace_event_{call,class}
ftrace_event_buffer -> trace_event_buffer
ftrace_subsystem_dir -> trace_subsystem_dir
ftrace_event_raw_##call -> trace_event_raw_##call
ftrace_event_data_offset_##call-> trace_event_data_offset_##call
ftrace_event_type_funcs_##call -> trace_event_type_funcs_##call
And a few various variables and flags have also been updated.
This has been sitting in linux-next for some time, and I have not heard
a single complaint about this rename breaking anything. Mostly because
these functions, variables and structures are mostly internal to the
tracing system and are seldom (if ever) used by anything external to that.
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Merge tag 'trace-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"This patch series contains several clean ups and even a new trace
clock "monitonic raw". Also some enhancements to make the ring buffer
even faster. But the biggest and most noticeable change is the
renaming of the ftrace* files, structures and variables that have to
deal with trace events.
Over the years I've had several developers tell me about their
confusion with what ftrace is compared to events. Technically,
"ftrace" is the infrastructure to do the function hooks, which include
tracing and also helps with live kernel patching. But the trace
events are a separate entity altogether, and the files that affect the
trace events should not be named "ftrace". These include:
include/trace/ftrace.h -> include/trace/trace_events.h
include/linux/ftrace_event.h -> include/linux/trace_events.h
Also, functions that are specific for trace events have also been renamed:
ftrace_print_*() -> trace_print_*()
(un)register_ftrace_event() -> (un)register_trace_event()
ftrace_event_name() -> trace_event_name()
ftrace_trigger_soft_disabled() -> trace_trigger_soft_disabled()
ftrace_define_fields_##call() -> trace_define_fields_##call()
ftrace_get_offsets_##call() -> trace_get_offsets_##call()
Structures have been renamed:
ftrace_event_file -> trace_event_file
ftrace_event_{call,class} -> trace_event_{call,class}
ftrace_event_buffer -> trace_event_buffer
ftrace_subsystem_dir -> trace_subsystem_dir
ftrace_event_raw_##call -> trace_event_raw_##call
ftrace_event_data_offset_##call-> trace_event_data_offset_##call
ftrace_event_type_funcs_##call -> trace_event_type_funcs_##call
And a few various variables and flags have also been updated.
This has been sitting in linux-next for some time, and I have not
heard a single complaint about this rename breaking anything. Mostly
because these functions, variables and structures are mostly internal
to the tracing system and are seldom (if ever) used by anything
external to that"
* tag 'trace-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (33 commits)
ring_buffer: Allow to exit the ring buffer benchmark immediately
ring-buffer-benchmark: Fix the wrong type
ring-buffer-benchmark: Fix the wrong param in module_param
ring-buffer: Add enum names for the context levels
ring-buffer: Remove useless unused tracing_off_permanent()
ring-buffer: Give NMIs a chance to lock the reader_lock
ring-buffer: Add trace_recursive checks to ring_buffer_write()
ring-buffer: Allways do the trace_recursive checks
ring-buffer: Move recursive check to per_cpu descriptor
ring-buffer: Add unlikelys to make fast path the default
tracing: Rename ftrace_get_offsets_##call() to trace_event_get_offsets_##call()
tracing: Rename ftrace_define_fields_##call() to trace_event_define_fields_##call()
tracing: Rename ftrace_event_type_funcs_##call to trace_event_type_funcs_##call
tracing: Rename ftrace_data_offset_##call to trace_event_data_offset_##call
tracing: Rename ftrace_raw_##call event structures to trace_event_raw_##call
tracing: Rename ftrace_trigger_soft_disabled() to trace_trigger_soft_disabled()
tracing: Rename FTRACE_EVENT_FL_* flags to EVENT_FILE_FL_*
tracing: Rename struct ftrace_subsystem_dir to trace_subsystem_dir
tracing: Rename ftrace_event_name() to trace_event_name()
tracing: Rename FTRACE_MAX_EVENT to TRACE_EVENT_TYPE_MAX
...
Pull drm updates from Dave Airlie:
"This is the main drm pull request for v4.2.
I've one other new driver from freescale on my radar, it's been posted
and reviewed, I'd just like to get someone to give it a last look, so
maybe I'll send it or maybe I'll leave it.
There is no major nouveau changes in here, Ben was working on
something big, and we agreed it was a bit late, there wasn't anything
else he considered urgent to merge.
There might be another msm pull for some bits that are waiting on
arm-soc, I'll see how we time it.
This touches some "of" stuff, acks are in place except for the fixes
to the build in various configs,t hat I just applied.
Summary:
New drivers:
- virtio-gpu:
KMS only pieces of driver for virtio-gpu in qemu.
This is just the first part of this driver, enough to run
unaccelerated userspace on. As qemu merges more we'll start
adding the 3D features for the virgl 3d work.
- amdgpu:
a new driver from AMD to driver their newer GPUs. (VI+)
It contains a new cleaner userspace API, and is a clean
break from radeon moving forward, that AMD are going to
concentrate on. It also contains a set of register headers
auto generated from AMD internal database.
core:
- atomic modesetting API completed, enabled by default now.
- Add support for mode_id blob to atomic ioctl to complete interface.
- bunch of Displayport MST fixes
- lots of misc fixes.
panel:
- new simple panels
- fix some long-standing build issues with bridge drivers
radeon:
- VCE1 support
- add a GPU reset counter for userspace
- lots of fixes.
amdkfd:
- H/W debugger support module
- static user-mode queues
- support killing all the waves when a process terminates
- use standard DECLARE_BITMAP
i915:
- Add Broxton support
- S3, rotation support for Skylake
- RPS booting tuning
- CPT modeset sequence fixes
- ns2501 dither support
- enable cmd parser on haswell
- cdclk handling fixes
- gen8 dynamic pte allocation
- lots of atomic conversion work
exynos:
- Add atomic modesetting support
- Add iommu support
- Consolidate drm driver initialization
- and MIC, DECON and MIPI-DSI support for exynos5433
omapdrm:
- atomic modesetting support (fixes lots of things in rewrite)
tegra:
- DP aux transaction fixes
- iommu support fix
msm:
- adreno a306 support
- various dsi bits
- various 64-bit fixes
- NV12MT support
rcar-du:
- atomic and misc fixes
sti:
- fix HDMI timing complaince
tilcdc:
- use drm component API to access tda998x driver
- fix module unloading
qxl:
- stability fixes"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (872 commits)
drm/nouveau: Pause between setting gpu to D3hot and cutting the power
drm/dp/mst: close deadlock in connector destruction.
drm: Always enable atomic API
drm/vgem: Set unique to "vgem"
of: fix a build error to of_graph_get_endpoint_by_regs function
drm/dp/mst: take lock around looking up the branch device on hpd irq
drm/dp/mst: make sure mst_primary mstb is valid in work function
of: add EXPORT_SYMBOL for of_graph_get_endpoint_by_regs
ARM: dts: rename the clock of MIPI DSI 'pll_clk' to 'sclk_mipi'
drm/atomic: Don't set crtc_state->enable manually
drm/exynos: dsi: do not set TE GPIO direction by input
drm/exynos: dsi: add support for MIC driver as a bridge
drm/exynos: dsi: add support for Exynos5433
drm/exynos: dsi: make use of array for clock access
drm/exynos: dsi: make use of driver data for static values
drm/exynos: dsi: add macros for register access
drm/exynos: dsi: rename pll_clk to sclk_clk
drm/exynos: mic: add MIC driver
of: add helper for getting endpoint node of specific identifiers
drm/exynos: add Exynos5433 decon driver
...
ability to handle partial request completions -- otherwise with the
current SCSI LLDs these changes could lead to silent data corruption.
- Fix two DM version bumps that were missing from the initial 4.2 DM
pull request (enabled userspace lvm2 to know certain changes have been
made).
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Merge tag 'dm-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
"Apologies for not pressing this request-based DM partial completion
issue further, it was an oversight on my part. We'll have to get it
fixed up properly and revisit for a future release.
- Revert block and DM core changes the removed request-based DM's
ability to handle partial request completions -- otherwise with the
current SCSI LLDs these changes could lead to silent data
corruption.
- Fix two DM version bumps that were missing from the initial 4.2 DM
pull request (enabled userspace lvm2 to know certain changes have
been made)"
* tag 'dm-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm cache policy smq: fix "default" version to be 1.4.0
dm: bump the ioctl version to 4.32.0
Revert "block, dm: don't copy bios for request clones"
Revert "dm: do not allocate any mempools for blk-mq request-based DM"
The main use case for the exisiting __irq_set_*_locked() inlines is to
replace the handler [,chip and name] of an interrupt from a region
which has the irq descriptor lock held, e.g. from the irq_set_type()
callback. The first argument is the irq number, so the functions need
so perform a pointless lookup of the interrupt descriptor for those
cases which have the irq_data pointer handy.
Provide new functions which take an irq_data pointer instead of the
interrupt number, so the lookup of the interrupt descriptor can be
avoided.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Conflicts:
include/linux/irqdesc.h
Introduce helper irq_desc_get_irq() to retrieve the irq number from
the irq descriptor.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Link: http://lkml.kernel.org/r/1433391238-19471-17-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Pull ARM updates from Russell King:
"Bigger items included in this update are:
- A series of updates from Arnd for ARM randconfig build failures
- Updates from Dmitry for StrongARM SA-1100 to move IRQ handling to
drivers/irqchip/
- Move ARMs SP804 timer to drivers/clocksource/
- Perf updates from Mark Rutland in preparation to move the ARM perf
code into drivers/ so it can be shared with ARM64.
- MCPM updates from Nicolas
- Add support for taking platform serial number from DT
- Re-implement Keystone2 physical address space switch to conform to
architecture requirements
- Clean up ARMv7 LPAE code, which goes in hand with the Keystone2
changes.
- L2C cleanups to avoid unlocking caches if we're prevented by the
secure support to unlock.
- Avoid cleaning a potentially dirty cache containing stale data on
CPU initialisation
- Add ARM-only entry point for secondary startup (for machines that
can only call into a Thumb kernel in ARM mode). Same thing is also
done for the resume entry point.
- Provide arch_irqs_disabled via asm-generic
- Enlarge ARMv7M vector table
- Always use BFD linker for VDSO, as gold doesn't accept some of the
options we need.
- Fix an incorrect BSYM (for Thumb symbols) usage, and convert all
BSYM compiler macros to a "badr" (for branch address).
- Shut up compiler warnings provoked by our cmpxchg() implementation.
- Ensure bad xchg sizes fail to link"
* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (75 commits)
ARM: Fix build if CLKDEV_LOOKUP is not configured
ARM: fix new BSYM() usage introduced via for-arm-soc branch
ARM: 8383/1: nommu: avoid deprecated source register on mov
ARM: 8391/1: l2c: add options to overwrite prefetching behavior
ARM: 8390/1: irqflags: Get arch_irqs_disabled from asm-generic
ARM: 8387/1: arm/mm/dma-mapping.c: Add arm_coherent_dma_mmap
ARM: 8388/1: tcm: Don't crash when TCM banks are protected by TrustZone
ARM: 8384/1: VDSO: force use of BFD linker
ARM: 8385/1: VDSO: group link options
ARM: cmpxchg: avoid warnings from macro-ized cmpxchg() implementations
ARM: remove __bad_xchg definition
ARM: 8369/1: ARMv7M: define size of vector table for Vybrid
ARM: 8382/1: clocksource: make ARM_TIMER_SP804 depend on GENERIC_SCHED_CLOCK
ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource
ARM: 8365/1: introduce sp804_timer_disable and remove arm_timer.h inclusion
ARM: 8364/1: fix BE32 module loading
ARM: 8360/1: add secondary_startup_arm prototype in header file
ARM: 8359/1: correct secondary_startup_arm mode
ARM: proc-v7: sanitise and document registers around errata
ARM: proc-v7: clean up MIDR access
...
Some of these are for drivers/soc, where we're now putting
SoC-specific drivers these days. Some are for other driver subsystems
where we have received acks from the appropriate maintainers.
Some highlights:
- simple-mfd: document DT bindings and misc updates
- migrate mach-berlin to simple-mfd for clock, pinctrl and reset
- memory: support for Tegra132 SoC
- memory: introduce tegra EMC driver for scaling memory frequency
- misc. updates for ARM CCI and CCN busses
Conflicts:
arch/arm64/boot/dts/arm/juno-motherboard.dtsi
Trivial add/add conflict with our dt branch.
Resolution: take both sides.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Kevin Hilman:
"Some of these are for drivers/soc, where we're now putting
SoC-specific drivers these days. Some are for other driver subsystems
where we have received acks from the appropriate maintainers.
Some highlights:
- simple-mfd: document DT bindings and misc updates
- migrate mach-berlin to simple-mfd for clock, pinctrl and reset
- memory: support for Tegra132 SoC
- memory: introduce tegra EMC driver for scaling memory frequency
- misc. updates for ARM CCI and CCN busses"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
drivers: soc: sunxi: Introduce SoC driver to map SRAMs
arm-cci: Add aliases for PMU events
arm-cci: Add CCI-500 PMU support
arm-cci: Sanitise CCI400 PMU driver specific code
arm-cci: Abstract handling for CCI events
arm-cci: Abstract out the PMU counter details
arm-cci: Cleanup PMU driver code
arm-cci: Do not enable CCI-400 PMU by default
firmware: qcom: scm: Add HDCP Support
ARM: berlin: add an ADC node for the BG2Q
ARM: berlin: remove useless chip and system ctrl compatibles
clk: berlin: drop direct of_iomap of nodes reg property
ARM: berlin: move BG2Q clock node
ARM: berlin: move BG2CD clock node
ARM: berlin: move BG2 clock node
clk: berlin: prepare simple-mfd conversion
pinctrl: berlin: drop SoC stub provided regmap
ARM: berlin: move pinctrl to simple-mfd nodes
pinctrl: berlin: prepare to use regmap provided by syscon
reset: berlin: drop arch_initcall initialization
...
