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Commit Graph

311722 Commits

Author SHA1 Message Date
Ingo Molnar
bb65a764de Merge branch 'mce-ripvfix' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras into x86/mce
Merge memory fault handling fix from Tony Luck.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-07-11 22:37:48 +02:00
Tony Luck
6751ed65dc x86/mce: Fix siginfo_t->si_addr value for non-recoverable memory faults
In commit dad1743e59 ("x86/mce: Only restart instruction after machine
check recovery if it is safe") we fixed mce_notify_process() to force a
signal to the current process if it was not restartable (RIPV bit not
set in MCG_STATUS). But doing it here means that the process doesn't
get told the virtual address of the fault via siginfo_t->si_addr. This
would prevent application level recovery from the fault.

Make a new MF_MUST_KILL flag bit for memory_failure() et al. to use so
that we will provide the right information with the signal.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Borislav Petkov <borislav.petkov@amd.com>
Cc: stable@kernel.org    # 3.4+
2012-07-11 10:20:47 -07:00
Ingo Molnar
92254d3144 Linux 3.5-rc6
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Merge tag 'v3.5-rc6' into x86/mce

Merge Linux 3.5-rc6 before merging more code.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-07-11 09:41:37 +02:00
Linus Torvalds
bd0a521e88 Linux 3.5-rc6 2012-07-07 17:23:56 -07:00
Linus Torvalds
a0127afbed Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security docs update from James Morris.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  security: Minor improvements to no_new_privs documentation
2012-07-07 17:21:59 -07:00
Linus Torvalds
332a2e1244 vfs: make O_PATH file descriptors usable for 'fchdir()'
We already use them for openat() and friends, but fchdir() also wants to
be able to use O_PATH file descriptors.  This should make it comparable
to the O_SEARCH of Solaris.  In particular, O_PATH allows you to access
(not-quite-open) a directory you don't have read persmission to, only
execute permission.

Noticed during development of multithread support for ksh93.

Reported-by: ольга крыжановская <olga.kryzhanovska@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org    # O_PATH introduced in 3.0+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-07 17:19:02 -07:00
Linus Torvalds
cd6407fe22 Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "Last merge window, we had some updates from Al cleaning up the signal
  restart handling.  These have caused some problems on ARM, and while
  Al has some fixes, we have some concerns with Al's patches but we've
  been unsuccesful with discussing this.

  We have got to the point where we need to do something, and we've
  decided that the best solution is to revert the appropriate commits
  until Al is able to reply to us.

  Also included here are four patches to fix warnings that I've noticed
  in my build system, and one fix for kprobes test code."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: fix warning caused by wrongly typed arm_dma_limit
  ARM: fix warnings about atomic64_read
  ARM: 7440/1: kprobes: only test 'sub pc, pc, #1b-2b+8-2' on ARMv6
  ARM: 7441/1: perf: return -EOPNOTSUPP if requested mode exclusion is unavailable
  ARM: 7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK"
  ARM: 7442/1: Revert "remove unused restart trampoline"
  ARM: fix set_domain() macro
  ARM: fix mach-versatile/pci.c warning
2012-07-07 11:20:59 -07:00
Andy Lutomirski
c540521bba security: Minor improvements to no_new_privs documentation
The documentation didn't actually mention how to enable no_new_privs.
This also adds a note about possible interactions between
no_new_privs and LSMs (i.e. why teaching systemd to set no_new_privs
is not necessarily a good idea), and it references the new docs
from include/linux/prctl.h.

Suggested-by: Rob Landley <rob@landley.net>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2012-07-08 00:25:48 +10:00
Linus Torvalds
26c439d400 Fixes an incorrect access mode check when preparing to open a file in the lower
filesystem. This isn't an urgent fix, but it is simple and the check was
 obviously incorrect.
 
 Also fixes a couple important bugs in the eCryptfs miscdev interface. These
 changes are low risk due to the small number of users that use the miscdev
 interface. I was able to keep the changes minimal and I have some cleaner, more
 complete changes queued up for the next merge window that will build on these
 patches.
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Merge tag 'ecryptfs-3.5-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs

Pull eCryptfs fixes from Tyler Hicks:
 "Fixes an incorrect access mode check when preparing to open a file in
  the lower filesystem.  This isn't an urgent fix, but it is simple and
  the check was obviously incorrect.

  Also fixes a couple important bugs in the eCryptfs miscdev interface.
  These changes are low risk due to the small number of users that use
  the miscdev interface.  I was able to keep the changes minimal and I
  have some cleaner, more complete changes queued up for the next merge
  window that will build on these patches."

* tag 'ecryptfs-3.5-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
  eCryptfs: Gracefully refuse miscdev file ops on inherited/passed files
  eCryptfs: Fix lockdep warning in miscdev operations
  eCryptfs: Properly check for O_RDONLY flag before doing privileged open
2012-07-06 15:32:18 -07:00
Linus Torvalds
c8912f2be3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull target fixes from Nicholas Bellinger:
 "Two minor target fixes.  There is really nothing exciting and/or
  controversial this time around.

  There's one fix from MDR for a RCU debug warning message within tcm_fc
  code (CC'ed to stable), and a small AC fix for qla_target.c based upon
  a recent Coverity static report.

  Also, there is one other outstanding virtio-scsi LUN scanning bugfix
  that has been uncovered with the in-flight tcm_vhost driver over the
  last days, and that needs to make it into 3.5 final too.  This patch
  has been posted to linux-scsi again here:

    http://marc.info/?l=linux-scsi&m=134160609212542&w=2

  and I've asked James to include it in his next PULL request."

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  qla2xxx: print the right array elements in qlt_async_event
  tcm_fc: Resolve suspicious RCU usage warnings
2012-07-06 13:59:50 -07:00
Tyler Hicks
8dc6780587 eCryptfs: Gracefully refuse miscdev file ops on inherited/passed files
File operations on /dev/ecryptfs would BUG() when the operations were
performed by processes other than the process that originally opened the
file. This could happen with open files inherited after fork() or file
descriptors passed through IPC mechanisms. Rather than calling BUG(), an
error code can be safely returned in most situations.

In ecryptfs_miscdev_release(), eCryptfs still needs to handle the
release even if the last file reference is being held by a process that
didn't originally open the file. ecryptfs_find_daemon_by_euid() will not
be successful, so a pointer to the daemon is stored in the file's
private_data. The private_data pointer is initialized when the miscdev
file is opened and only used when the file is released.

https://launchpad.net/bugs/994247

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reported-by: Sasha Levin <levinsasha928@gmail.com>
Tested-by: Sasha Levin <levinsasha928@gmail.com>
2012-07-06 15:51:12 -05:00
Alan Cox
4f1d0f1971 qla2xxx: print the right array elements in qlt_async_event
Based upon Alan's patch from Coverity scan id 793583, these debug
messages in qlt_async_event() should be starting from byte 0, which is
always the Asynchronous Event Status Code from the parent switch statement.

Also, rename reason_code -> login_code following the language used in
2500 FW spec for Port Database Changed (0x8014) -> Port Database Changed
Event Mailbox Register for mailbox[2].

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Chad Dupuis <chad.dupuis@qlogic.com>
Cc: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-07-06 13:09:23 -07:00
Mark Rustad
863555be0c tcm_fc: Resolve suspicious RCU usage warnings
Use rcu_dereference_protected to tell rcu that the ft_lport_lock
is held during ft_lport_create. This resolved "suspicious RCU usage"
warnings when debugging options are turned on.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-07-06 12:52:09 -07:00
Linus Torvalds
af9b9a53fa Two MTD fixes for 3.5:
- Fix a logic error in OLPC CAFÉ NAND ready() function.
 - Fix regression due to bitflip handling changes.
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Merge tag 'for-linus-20120706' of git://git.infradead.org/linux-mtd

Pull two MTD fixes from David Woodhouse:
 - Fix a logic error in OLPC CAFÉ NAND ready() function.
 - Fix regression due to bitflip handling changes.

* tag 'for-linus-20120706' of git://git.infradead.org/linux-mtd:
  mtd: cafe_nand: fix an & vs | mistake
  mtd: nand: initialize bitflip_threshold prior to BBT scanning
2012-07-06 10:34:48 -07:00
Andy Lutomirski
9ab4233dd0 mm: Hold a file reference in madvise_remove
Otherwise the code races with munmap (causing a use-after-free
of the vma) or with close (causing a use-after-free of the struct
file).

The bug was introduced by commit 90ed52ebe4 ("[PATCH] holepunch: fix
mmap_sem i_mutex deadlock")

Cc: Hugh Dickins <hugh@veritas.com>
Cc: Miklos Szeredi <mszeredi@suse.cz>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: stable@vger.kernel.org
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-06 10:34:38 -07:00
Linus Torvalds
1b7fa4c271 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2
Pull ocfs2 fixes from Joel Becker.

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2:
  aio: make kiocb->private NUll in init_sync_kiocb()
  ocfs2: Fix bogus error message from ocfs2_global_read_info
  ocfs2: for SEEK_DATA/SEEK_HOLE, return internal error unchanged if ocfs2_get_clusters_nocache() or ocfs2_inode_lock() call failed.
  ocfs2: use spinlock irqsave for downconvert lock.patch
  ocfs2: Misplaced parens in unlikley
  ocfs2: clear unaligned io flag when dio fails
2012-07-06 10:04:39 -07:00
Linus Torvalds
064ea1ae80 Merge git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French.

* git://git.samba.org/sfrench/cifs-2.6:
  cifs: when server doesn't set CAP_LARGE_READ_X, cap default rsize at MaxBufferSize
  cifs: fix parsing of password mount option
2012-07-06 10:02:12 -07:00
Linus Torvalds
1b74a8684e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input layer fixes from Dmitry Torokhov:
 "Two fixes for regressions in Wacom driver and fixes for drivers using
  threaded IRQ framework without specifying IRQF_ONESHOT."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: request threaded-only IRQs with IRQF_ONESHOT
  Input: wacom - don't retrieve touch_max when it is predefined
  Input: wacom - fix retrieving touch_max bug
  Input: fix input.h kernel-doc warning
2012-07-06 09:50:39 -07:00
Dan Carpenter
48f8b64129 mtd: cafe_nand: fix an & vs | mistake
The intent here was clearly to set result to true if the 0x40000000 flag
was set.  But instead there was a | vs & typo and we always set result
to true.

Artem: check the spec at
wiki.laptop.org/images/5/5c/88ALP01_Datasheet_July_2007.pdf
and this fix looks correct.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-07-06 14:27:13 +01:00
Linus Torvalds
c4aed353b1 ARM: SoC fixes for 3.5-rc
Small fixes on multiple ARM platforms
 * A build regression from a previous fix on dove and mv78xx0
 * Two fixes for recently (3.5-rc1) changed mmp/pxa code
 * multiple omap2+ bug fixes
 * two trivial fixes for i.MX
 * one v3.5 regression for mxs
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Small fixes on multiple ARM platforms
   - A build regression from a previous fix on dove and mv78xx0
   - Two fixes for recently (3.5-rc1) changed mmp/pxa code
   - multiple omap2+ bug fixes
   - two trivial fixes for i.MX
   - one v3.5 regression for mxs"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: apx4devkit: fix FEC enabling PHY clock
  ARM: OMAP2+: hwmod data: Fix wrong McBSP clock alias on OMAP4
  ARM: OMAP4: hwmod data: temporarily comment out data for the usb_host_fs and aess IP blocks
  ARM: Orion: Fix WDT compile for Dove and MV78xx0
  ARM: mmp: remove mach/gpio-pxa.h
  ARM: imx: assert SCC gate stays enabled
  ARM: OMAP4: TWL6030: ensure sys_nirq1 is mux'd and wakeup enabled
  ARM: OMAP2: Overo: init I2C before MMC to fix MMC suspend/resume failure
  ARM: imx27_visstrim_m10: Do not include <asm/system.h>
  ARM: pxa: hx4700: Fix basic suspend/resume
2012-07-05 13:20:02 -07:00
Linus Torvalds
6bc51545da Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fix from Marcelo Tosatti:
 "Memory leak and oops on the x86 mmu code, and sanitization of the
  KVM_IRQFD ioctl."

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: MMU: fix shrinking page from the empty mmu
  KVM: fix fault page leak
  KVM: Sanitize KVM_IRQFD flags
  KVM: Add missing KVM_IRQFD API documentation
  KVM: Pass kvm_irqfd to functions
2012-07-05 13:16:21 -07:00
Linus Torvalds
24eee627eb Merge branch 'fixes-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull leds fix from Bryan Wu:
 "Fix for heartbeat led trigger driver"

* 'fixes-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  leds: heartbeat: fix bug on panic
2012-07-05 13:09:37 -07:00
Linus Torvalds
5eecb9cc90 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs updates from Chris Mason:
 "I held off on my rc5 pull because I hit an oops during log recovery
  after a crash.  I wanted to make sure it wasn't a regression because
  we have some logging fixes in here.

  It turns out that a commit during the merge window just made it much
  more likely to trigger directory logging instead of full commits,
  which exposed an old bug.

  The new backref walking code got some additional fixes.  This should
  be the final set of them.

  Josef fixed up a corner where our O_DIRECT writes and buffered reads
  could expose old file contents (not stale, just not the most recent).
  He and Liu Bo fixed crashes during tree log recover as well.

  Ilya fixed errors while we resume disk balancing operations on
  readonly mounts."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: run delayed directory updates during log replay
  Btrfs: hold a ref on the inode during writepages
  Btrfs: fix tree log remove space corner case
  Btrfs: fix wrong check during log recovery
  Btrfs: use _IOR for BTRFS_IOC_SUBVOL_GETFLAGS
  Btrfs: resume balance on rw (re)mounts properly
  Btrfs: restore restriper state on all mounts
  Btrfs: fix dio write vs buffered read race
  Btrfs: don't count I/O statistic read errors for missing devices
  Btrfs: resolve tree mod log locking issue in btrfs_next_leaf
  Btrfs: fix tree mod log rewind of ADD operations
  Btrfs: leave critical region in btrfs_find_all_roots as soon as possible
  Btrfs: always put insert_ptr modifications into the tree mod log
  Btrfs: fix tree mod log for root replacements at leaf level
  Btrfs: support root level changes in __resolve_indirect_ref
  Btrfs: avoid waiting for delayed refs when we must not
2012-07-05 13:06:25 -07:00
Linus Torvalds
62ad64498a Merge branch 'fixes-for-grant' of git://sources.calxeda.com/kernel/linux
Pull DT fixes from Rob Herring:
 "Mainly some documentation updates and 2 fixes:

   - An export symbol fix for of_platform_populate from Stephen W.
   - A fix for the order compatible entries are matched to ensure the
     first compatible string is matched when there are multiple matches."

Normally these would go through Grant Likely (thus the "fixes-for-grant"
branch name), but Grant is in the middle of moving to Scotland, and is
practically offline until sometime in August. So pull directly from Rob.

* 'fixes-for-grant' of git://sources.calxeda.com/kernel/linux:
  of: match by compatible property first
  dt: mc13xxx.txt: Fix gpio number assignment
  dt: fsl-fec.txt: Fix gpio number assignment
  dt: fsl-mma8450.txt: Add missing 'reg' description
  dt: fsl-imx-esdhc.txt: Fix gpio number assignment
  dt: fsl-imx-cspi.txt: Fix comment about GPIOs used for chip selects
  of: Add Avionic Design vendor prefix
  of: export of_platform_populate()
2012-07-05 11:53:47 -07:00
Russell King
09b2ad13da ARM: fix warning caused by wrongly typed arm_dma_limit
arch/arm/mm/init.c: In function 'arm_memblock_init':
arch/arm/mm/init.c:380: warning: comparison of distinct pointer types lacks a cast

by fixing the typecast in its definition when DMA_ZONE is disabled.
This was missed in 4986e5c7c (ARM: mm: fix type of the arm_dma_limit
global variable).

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-05 13:11:31 +01:00
Russell King
b89d607b59 ARM: fix warnings about atomic64_read
Fix:
net/netfilter/xt_connbytes.c: In function 'connbytes_mt':
net/netfilter/xt_connbytes.c:43: warning: passing argument 1 of 'atomic64_read' discards qualifiers from pointer target type
...

by adding the missing const.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-05 13:06:32 +01:00
Rabin Vincent
f8b435bb91 ARM: 7440/1: kprobes: only test 'sub pc, pc, #1b-2b+8-2' on ARMv6
'sub pc, pc, #1b-2b+8-2' results in address<1:0> == '10'.

sub pc, pc, #const (== ADR pc, #const) performs an interworking branch
(BXWritePC()) on ARMv7+ and a simple branch (BranchWritePC()) on earlier
versions.

In ARM state, BXWritePC() is UNPREDICTABLE when address<1:0> == '10'.

In ARM state on ARMv6+, BranchWritePC() ignores address<1:0>.  Before
ARMv6, BranchWritePC() is UNPREDICTABLE if address<1:0> != '00'

So the instruction is UNPREDICTABLE both before and after v6.

Acked-by: Jon Medhurst <tixy@yxit.co.uk>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-05 12:57:16 +01:00
Arnd Bergmann
e15ebe05cc PM related fixes for omaps mostly to get suspend/resume
working again.
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Merge tag 'omap-fixes-for-v3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

PM related fixes for omaps mostly to get suspend/resume
working again.

* tag 'omap-fixes-for-v3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: hwmod data: Fix wrong McBSP clock alias on OMAP4
  ARM: OMAP4: hwmod data: temporarily comment out data for the usb_host_fs and aess IP blocks
  ARM: OMAP4: TWL6030: ensure sys_nirq1 is mux'd and wakeup enabled
  ARM: OMAP2: Overo: init I2C before MMC to fix MMC suspend/resume failure

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-05 12:16:13 +02:00
Arnd Bergmann
8d111444bd Merge branch 'mxs/fixes-for-3.5' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
* 'mxs/fixes-for-3.5' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: apx4devkit: fix FEC enabling PHY clock

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-05 11:06:36 +02:00
Will Deacon
fdeb8e35fd ARM: 7441/1: perf: return -EOPNOTSUPP if requested mode exclusion is unavailable
We currently return -EPERM if the user requests mode exclusion that is
not supported by the CPU. This looks pretty confusing from userspace
and is inconsistent with other architectures (ppc, x86).

This patch returns -EOPNOTSUPP instead.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-05 09:50:56 +01:00
Will Deacon
433e2f307b ARM: 7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK"
This reverts commit 6b5c8045ec.

Conflicts:

	arch/arm/kernel/ptrace.c

The new syscall restarting code can lead to problems if we take an
interrupt in userspace just before restarting the svc instruction. If
a signal is delivered when returning from the interrupt, the
TIF_SYSCALL_RESTARTSYS will remain set and cause any syscalls executed
from the signal handler to be treated as a restart of the previously
interrupted system call. This includes the final sigreturn call, meaning
that we may fail to exit from the signal context. Furthermore, if a
system call made from the signal handler requires a restart via the
restart_block, it is possible to clear the thread flag and fail to
restart the originally interrupted system call.

The right solution to this problem is to perform the restarting in the
kernel, avoiding the possibility of handling a further signal before the
restart is complete. Since we're almost at -rc6, let's revert the new
method for now and aim for in-kernel restarting at a later date.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-05 09:50:56 +01:00
Will Deacon
3b0c062267 ARM: 7442/1: Revert "remove unused restart trampoline"
This reverts commit fa18484d09.

We need the restart trampoline back so that we can revert a related
problematic patch 6b5c8045ec ("arm: new
way of handling ERESTART_RESTARTBLOCK").

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-05 09:50:56 +01:00
Russell King
82401bf105 ARM: fix set_domain() macro
Avoid polluting drivers with a set_domain() macro, which interferes with
structure member names:

drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c:294:33: error: macro "set_domain" passed 2 arguments, but takes just 1

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-05 09:50:55 +01:00
Junxiao Bi
2dfd06036b aio: make kiocb->private NUll in init_sync_kiocb()
Ocfs2 uses kiocb.*private as a flag of unsigned long size. In
commit a11f7e6 ocfs2: serialize unaligned aio, the unaligned
io flag is involved in it to serialize the unaligned aio. As
*private is not initialized in init_sync_kiocb() of do_sync_write(),
this unaligned io flag may be unexpectly set in an aligned dio.
And this will cause OCFS2_I(inode)->ip_unaligned_aio decreased
to -1 in ocfs2_dio_end_io(), thus the following unaligned dio
will hang forever at ocfs2_aiodio_wait() in ocfs2_file_aio_write().

Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Cc: stable@vger.kernel.org
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2012-07-05 01:33:59 -07:00
Tony Lindgren
fa2976a811 A few more OMAP fixes for 3.5-rc. These fix some bugs with power
management and McBSP.
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Merge tag 'omap-fixes-b-for-3.5rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes

A few more OMAP fixes for 3.5-rc.  These fix some bugs with power
management and McBSP.
2012-07-05 01:12:08 -07:00
Lauri Hintsala
c46d2916f6 ARM: apx4devkit: fix FEC enabling PHY clock
Ethernet stopped to work after mxs clk framework change.

Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-07-05 16:08:01 +08:00
Lars-Peter Clausen
9b7e31bbf4 Input: request threaded-only IRQs with IRQF_ONESHOT
Since commit 1c6c69525b ("genirq: Reject bogus threaded irq requests")
threaded IRQs without a primary handler need to be requested with
IRQF_ONESHOT, otherwise the request will fail. This patch adds the
IRQF_ONESHOT to input drivers where it is missing. Not modified by
this patch are those drivers where the requested IRQ will always be a
nested IRQ (e.g. because it's part of an MFD), since for this special
case IRQF_ONESHOT is not required to be specified when requesting the
IRQ.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-04 13:12:19 -07:00
Russell King
32e1eb59f7 ARM: fix mach-versatile/pci.c warning
arch/arm/mach-versatile/pci.c: In function 'versatile_map_irq':
arch/arm/mach-versatile/pci.c:342: warning: unused variable 'devslot'

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-04 17:04:57 +01:00
Benoit Cousson
d7a0b5133f ARM: OMAP2+: hwmod data: Fix wrong McBSP clock alias on OMAP4
The commit 503d0ea24d
  ARM: OMAP4: hwmod data: Add aliases for McBSP fclk clocks

added a wrong "prcm_clk" alias for PRCM clock whereas the McBSP
driver and previous OMAPs are using "prcm_fck".

It thus lead to the following warning.

[   47.409729] omap-mcbsp: clks: could not clk_get() prcm_fck

Fix that by changing the opt_clk role to prcm_fck.

Reported-by: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Sebastien Guiriec <s-guiriec@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-07-04 06:55:29 -06:00
Paul Walmsley
b0a70cc80e ARM: OMAP4: hwmod data: temporarily comment out data for the usb_host_fs and aess IP blocks
The OMAP4 usb_host_fs (OHCI) and AESS IP blocks require some special
programming for them to enter idle.  Without this programming, they
will prevent the rest of the chip from entering full chip idle.

To implement the idle programming cleanly, this will take some
coordination between maintainers.  This is likely to take some time,
so it is probably best to leave this for 3.6 or 3.7.  So, in the
meantime, prevent these IP blocks from being registered.

Later, once the appropriate support is available, this patch can be
reverted.

This second version comments out the IP block data since Benoît didn't
like removing it.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoît Cousson <b-cousson@ti.com>
2012-07-04 06:55:29 -06:00
Arnd Bergmann
8df0fd939a Merge branch 'fixes' of git://github.com/hzhuang1/linux into fixes
From Haojian Zhuang <haojian.zhuang@gmail.com>:

* 'fixes' of git://github.com/hzhuang1/linux:
  ARM: mmp: remove mach/gpio-pxa.h

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-04 13:49:58 +02:00
Arnd Bergmann
811dde659f ARM i.MX fixes for v3.5-rc5
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Merge tag 'v3.5-imx-fixes' of git://git.pengutronix.de/git/imx/linux-2.6 into fixes

From Sascha Hauer <s.hauer@pengutronix.de>:

ARM i.MX fixes for v3.5-rc5

* tag 'v3.5-imx-fixes' of git://git.pengutronix.de/git/imx/linux-2.6:
  ARM: imx: assert SCC gate stays enabled
  ARM: imx27_visstrim_m10: Do not include <asm/system.h>

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-04 13:46:05 +02:00
Andrew Lunn
1e0c1ce00d ARM: Orion: Fix WDT compile for Dove and MV78xx0
Commit 0fa1f0609a (ARM: Orion: Fix
Virtual/Physical mixup with watchdog) broke the Dove & MV78xx0
build. Although these two SoC don't use the watchdog, the shared
platform code still needs to build. Add the necessary defines.

Cc: stable@vger.kernel.org
Reported-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-04 10:37:34 +02:00
Paul Bolle
c12a3cb9dc ARM: mmp: remove mach/gpio-pxa.h
Commit 157d2644cb ("ARM: pxa: change gpio
to platform device") removed all includes of mach/gpio-pxa.h. It kept
this unused header in the tree. Using it can't work, as it itself
includes the non-existent header plat/gpio-pxa.h. This header can safely
be removed.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-07-04 15:58:11 +08:00
Alexander Holler
fb31fbeb64 leds: heartbeat: fix bug on panic
With commit 49dca5aebf I introduced
a bug (visible if CONFIG_PROVE_RCU is enabled) which occures when a panic
has happened:

[ 1526.520230] ===============================
[ 1526.520230] [ INFO: suspicious RCU usage. ]
[ 1526.520230] 3.5.0-rc1+ #12 Not tainted
[ 1526.520230] -------------------------------
[ 1526.520230] /c/kernel-tests/mm/include/linux/rcupdate.h:436 Illegal context switch in RCU read-side critical section!
[ 1526.520230]
[ 1526.520230] other info that might help us debug this:
[ 1526.520230]
[ 1526.520230]
[ 1526.520230] rcu_scheduler_active = 1, debug_locks = 0
[ 1526.520230] 3 locks held by net.agent/3279:
[ 1526.520230]  #0:  (&mm->mmap_sem){++++++}, at: [<ffffffff82f85962>] do_page_fault+0x193/0x390
[ 1526.520230]  #1:  (panic_lock){+.+...}, at: [<ffffffff82ed2830>] panic+0x37/0x1d3
[ 1526.520230]  #2:  (rcu_read_lock){.+.+..}, at: [<ffffffff810b9b28>] rcu_lock_acquire+0x0/0x29
[ 1526.520230]
[ 1526.520230] stack backtrace:
[ 1526.520230] Pid: 3279, comm: net.agent Not tainted 3.5.0-rc1+ #12
[ 1526.520230] Call Trace:
[ 1526.520230]  [<ffffffff810e1570>] lockdep_rcu_suspicious+0x109/0x112
[ 1526.520230]  [<ffffffff810bfe3a>] rcu_preempt_sleep_check+0x45/0x47
[ 1526.520230]  [<ffffffff810bfe5a>] __might_sleep+0x1e/0x19a
[ 1526.520230]  [<ffffffff82f8010e>] down_write+0x26/0x81
[ 1526.520230]  [<ffffffff8276a966>] led_trigger_unregister+0x1f/0x9c
[ 1526.520230]  [<ffffffff8276def5>] heartbeat_reboot_notifier+0x15/0x19
[ 1526.520230]  [<ffffffff82f85bf5>] notifier_call_chain+0x96/0xcd
[ 1526.520230]  [<ffffffff82f85cba>] __atomic_notifier_call_chain+0x8e/0xff
[ 1526.520230]  [<ffffffff81094b7c>] ? kmsg_dump+0x37/0x1eb
[ 1526.520230]  [<ffffffff82f85d3f>] atomic_notifier_call_chain+0x14/0x16
[ 1526.520230]  [<ffffffff82ed28e1>] panic+0xe8/0x1d3
[ 1526.520230]  [<ffffffff811473e2>] out_of_memory+0x15d/0x1d3

So in case of a panic, now just turn of the LED. Other approaches like
scheduling a work to unregister the trigger aren't working because there
isn't much which still runs after a panic occured (except timers).

Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
2012-07-04 15:55:19 +08:00
Uwe Kleine-König
c520c921ea ARM: imx: assert SCC gate stays enabled
The SCC clock is needed in internal boot mode and so must keep enabled.
This same issue was fixed for the pre-common-clk code in commit

	3d6e614 (mx35: Fix boot ROM hang in internal boot mode)

Cc: John Ogness <jogness@linutronix.de>
Cc: Hans J. Koch <hjk@hansjkoch.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-07-04 09:38:29 +02:00
Jan Kara
a4564ead76 ocfs2: Fix bogus error message from ocfs2_global_read_info
'status' variable in ocfs2_global_read_info() is always != 0 when leaving the
function because it happens to contain number of read bytes. Thus we always log
error message although everything is OK. Since all error cases properly call
mlog_errno() before jumping to out_err, there's no reason to call mlog_errno()
on exit at all. This is a fallout of c1e8d35e (conversion of mlog_exit()
calls).

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2012-07-03 23:27:17 -07:00
Jeff Liu
65622e647b ocfs2: for SEEK_DATA/SEEK_HOLE, return internal error unchanged if ocfs2_get_clusters_nocache() or ocfs2_inode_lock() call failed.
Hello,

Since ENXIO only means "offset beyond EOF" for SEEK_DATA/SEEK_HOLE,
Hence we should return the internal error unchanged if ocfs2_inode_lock() or
ocfs2_get_clusters_nocache() call failed rather than ENXIO.
Otherwise, it will confuse the user applications when they trying to understand the root cause.

Thanks Dave for pointing this out.

Thanks,
-Jeff

Cc: Dave Chinner <david@fromorbit.com>
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2012-07-03 23:27:16 -07:00
Srinivas Eeda
a75e9ccabd ocfs2: use spinlock irqsave for downconvert lock.patch
When ocfs2dc thread holds dc_task_lock spinlock and receives soft IRQ it
deadlock itself trying to get same spinlock in ocfs2_wake_downconvert_thread.
Below is the stack snippet.

The patch disables interrupts when acquiring dc_task_lock spinlock.

	ocfs2_wake_downconvert_thread
	ocfs2_rw_unlock
	ocfs2_dio_end_io
	dio_complete
	.....
	bio_endio
	req_bio_endio
	....
	scsi_io_completion
	blk_done_softirq
	__do_softirq
	do_softirq
	irq_exit
	do_IRQ
	ocfs2_downconvert_thread
	[kthread]

Signed-off-by: Srinivas Eeda <srinivas.eeda@oracle.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2012-07-03 23:27:15 -07:00
roel
16865b7c42 ocfs2: Misplaced parens in unlikley
Fix misplaced parentheses

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2012-07-03 23:27:13 -07:00