This makes unmap_vm_area static and a wrapper around a new
exported unmap_kernel_range that takes an explicit range instead
of a vm_area struct.
This makes it more versatile for code that wants to play with kernel
page tables outside of the standard vmalloc area.
(One example is some rework of the PowerPC PCI IO space mapping
code that depends on that patch and removes some code duplication
and horrible abuse of forged struct vm_struct).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6:
OHCI: Fix machine check in ohci_hub_status_data
USB: Fix up bogus bInterval values in endpoint descriptors
USB: cxacru: ignore error trying to start ADSL in atm_start
USB: cxacru: create sysfs attributes in atm_start instead of bind
USB: cxacru: add Documentation file
USB: UNUSUAL_DEV: Sync up some reported devices from Ubuntu
USB: usb gadgets avoid le{16,32}_to_cpup()
usblp: Don't let suspend to kill ->used
USB: set default y for CONFIG_USB_DEVICE_CLASS
Randy Dunlap reports that a tmpfs, mounted with NUMA mpol= specifying an
offline node, crashes as soon as data is allocated upon it. Now restrict it
to online nodes, where before it restricted to MAX_NUMNODES.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Robin Holt <holt@sgi.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Andi Kleen <ak@suse.de>
Tested-and-acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Now that deprecated functions are detected out of
Documentation/feature-removal-schedule.txt update this to include
kernel_thread.
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Explain what we use Acked-by: for, and how it differs from Signed-off-by:
Acked-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The sysfs attributes for exposing cxacru statistics/status information with
possible values is now explained in Documentation/networking/cxacru.txt
including information on the writable adsl_state attribute's commands and a
sample of the kernel log format.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: Duncan Sands <duncan.sands@math.u-psud.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Manuel Estrada Sainz passed away on May 9th 2004, his email account got
deactivated. He was in charge of the firmware_class code, and still got
CC'ed in recent discussions about it.
Signed-off-by: Markus Rechberger <markus.rechberger@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Make note of the legacy "probe-the-hardware" drivers, and some APIs that
are mostly unused except by such drivers. We probably can't escape having
legacy drivers for a while (e.g. old ISA drivers), but we can at least
discourage this style code for new drivers, and unless it's unavoidable.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Andres Salomon <dilinger@debian.org>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix typo in section numbering.
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Make timer-stats have almost zero overhead when enabled in the config but
not used. (this way distros can enable it more easily)
Also update the documentation about overhead of timer_stats - it was
written for the first version which had a global lock and a linear list
walk based lookup ;-)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adds instructions how to use GDB to figure out the exact location of
an OOPS to Documentation/BUG-HUNTING.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We are seeing increasing levels of minor patch style violations in submissions
to the mailing lists as well as making it into the tree. These detract from
the quality of the submission and cause unnessary work for reviewers.
As a first step package up the current state of the patch style checker and
include it in the kernel tree. Add instructions suggesting running it on
submissions. This adds version v0.01 of the checkpatch.pl script.
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Joel Schopp <jschopp@austin.ibm.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix various bits of obviously-busted code which we're not happening to
compile, due to ifdefs.
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Jan Kara <jack@ucw.cz>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The initial version of the thinkpad-acpi sysfs interface (not yet released
in any stable mainline kernel) made liberal use of named sysfs groups, in
order to get the attributes more organized.
This proved to be a really bad design decision. Maybe if attribute groups
were as flexible as a real directory, and if binary attributes were not
second-class citizens, the idea of subdirs and named groups would not have
been so bad.
This patch makes all the thinkpad-acpi sysfs groups anonymous (thus
removing the subdirs), adds the former group names as a prefix (so that
hotkey/enable becomes hotkey_enable for example), and updates the
documentation.
These changes will make the thinkpad-acpi sysfs ABI a lot easier to
maintain.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (24 commits)
[IPSEC]: Add xfrm_sysctl.txt.
[BRIDGE]: Round off STP perodic timers.
[BRIDGE]: Reduce frequency of forwarding cleanup timer in bridge.
[TCP] tcp_probe: use GCC printf attribute
[TCP] tcp_probe: a trivial fix for mismatched number of printl arguments.
[IPV6] ADDRCONF: Fix conflicts in DEVCONF_xxx constant.
[NET] napi: Call __netif_rx_complete in netif_rx_complete
[TCP]: Consolidate checking for tcp orphan count being too big.
[SOCK]: Shrink struct sock by 8 bytes on 64-bit.
[AF_PACKET]: Kill CONFIG_PACKET_SOCKET.
[IPV6]: Fix build warning.
[AF_PACKET]: Kill bogus CONFIG_PACKET_MULTICAST
[IPV4]: Kill references to bogus non-existent CONFIG_IP_NOSIOCRT
[IPSEC]: Fix panic when using inter address familiy IPsec on loopback.
[NET]: parse ip:port strings correctly in in4_pton
[IPV6] ROUTE: No longer handle ::/0 specially.
[IPSEC]: Fix IPv6 AH calculation in outbound
[XFRM]: xfrm_larval_drop sysctl should be __read_mostly.
[XFRM]: Allow XFRM_ACQ_EXPIRES to be tunable via sysctl.
[CASSINI]: Fix printk message typo.
...
Update documentation to describe how to read a SLUB error report.
Add slub parameters to Documentation/kernel-parameters.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch adds support for the Gateway NX860 system.
Signed-off-by: Tobin Davis <tdavis@dsl-only.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
The boot option "acpi_osi=" has always disabled Linux _OSI support,
thus disabling all OS Interface strings which are advertised
by Linux to the BIOS.
Now...
acpi_osi="string" adds the interface string, and
acpi_osi="!string" invalidates the pre-defined interface string
eg. acpi_osi="!Windows 2006"
would disable Linux's claim of Vista compatibility.
Signed-off-by: Len Brown <len.brown@intel.com>
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] megaraid_sas: intercept cmd timeout and throttle io
[SCSI] fusion: Fix |/|| confusion
[SCSI] aic94xx: asd_clear_nexus should fail if the cleared task does not complete
[SCSI] aic7xxx: fix aicasm build failure with gcc-3.4.6
[SCSI] aacraid: apply commit config for reset_devices flag
[SCSI] sd: fix refcounting regression in suspend/resume routines
[SCSI] aacraid: fix panic on short Inquiry
[SCSI] aacraid: Correct sa platform support. (Was: [Bug 8469] Bad EIP value on pentium3 SMP kernel-2.6.21.1)
[SCSI] NCR53C9x: correct spelling mistake in deprecation notice
[SCSI] tgt: fix a rdma indirect transfer error bug
[SCSI] MegaRAID: Update MAINTAINERS email-id
[SCSI] stex: minor cleanup and version update
[SCSI] stex: fix reset recovery for console device
[SCSI] stex: extend hard reset wait time
[SCSI] stex: fix id mapping issue
[SCSI] ipr: Proper return codes for eh_dev_reset for SATA devices
[SCSI] zfcp: IO stall after deleting and path checker changes after reenabling zfcp devices
[SCSI] zfcp: avoid clutter in erp_dbf
Random sampling of some URLs in the Documentation tree to see how many were
stale found that one watchdog driver was now a porn site. In fact if the
watchdogs document directory was any older it would be written in latin
Clean it up somewhat and add Last reviewed headers, something all the
Documentation could do with IMHO.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
.. it got changed to 'i_mutex' some time ago.
Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit 722385f75e (or commit
3f27100872, it's your choice ;), since the
same patch to Documentation/HOWTO got added twice because it just kept
applying cleanly.
Noted by Qi Yong.
Cc: Qi Yong <qiyong@fc-cn.com>
Acked-by: Diego Calleja <diegocg@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Textual clarifications (and fix an off-by-one error) based on feedback
mostly from Jeremy Fitzhardinge.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix various grammatical issues in Documentation/memory-barriers.txt.
Cc: "Robert P. J. Day" <rpjday@mindspring.com>
Signed-off-by: Jarek Poplawski <jarkao2@o2.pl>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Document the available clocksources per platform and move clocksource= into
the correct (alpha) location in the file.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Final clearification of the pivot_root mechanism, which brings this
document really up-to-date.
Signed-off-by: Domenico Andreoli <cavok@dandreoli.com>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Update dontdiff file by adding entries from many .gitignore files.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix the obvious errors in the explanation of Kconfig files.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Allow user space to determine if a disk supports Asynchronous Notification of
media changes. This is done by adding a new sysfs file "capability_flags",
which is documented in (insert file name). This sysfs file will export all
disk capabilities flags to user space. We also define a new flag to define
the media change notification capability.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Update the SPI documentation to cover a few points that have proven to be
confusing or unclear; most notably the two clock mode bits.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This just removes some warnings generated by the Docbook tools when
turning USB (host and peripheral side) kerneldoc into HTML; they're
all about missing ID attributes.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] More verbose show_mem() like other architectures.
[S390] Make use of kretprobe_assert.
[S390] Wire up signald, timerfd and eventfd syscalls.
[S390] Wire up sys_utimensat.
[S390] cio: Update documentation.
This fixes the LDM driver so that it works with Windows Vista dynamic
disks which are subtly different to Windows 2000/XP ones.
The patch was needed to get a Vista formatted dynamic disk to be
recognized and parsed successfully.
Thanks go to Chris Teachworth for the report and testing.
Cc: Richard Russon <ldm@flatcap.org>
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- read_dev_chars()/read_conf_data() are deprecated. Don't document them, but
advise to issue the channel program from the driver itself.
- Remove some really obsolete and incorrect stuff.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
A number of items in the i386 boot documentation have been either
vague, outdated or hard to read. This text revision adds several more
examples, including a memory map for a modern kernel load. It also
adds a field-by-field detailed description of the setup header, and a
bootloader ID for Qemu.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The slab manipulation functions should not be triggered by slabs that
are unresovable in the subset of slabs selected on the command line.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
With STANDBYDOWN tracking added, libata.spindown_compat isn't
necessary anymore. If userspace shutdown(8) issues STANDBYNOW, libata
warns. If userspace shutdown(8) doesn't issue STANDBYNOW, libata does
the right thing. Userspace can tell whether kernel supports spindown
by testing whether sysfs node manage_start_stop exists as before.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Loosen gpio_{request,free}() and gpio_direction_{in,out}put() call context
restrictions slightly, so a common idiom is no longer an error: board init
code setting up spinlock-safe GPIOs before tasking is enabled.
The issue was caught by some paranoid code with might_sleep() checks. The
legacy platform-specific GPIO interfaces stick to spinlock-safe GPIOs, so this
change reflects current implementations and won't break anything.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andi Kleen pointed out to me that the kernel locking cheat sheet
table entries are unreadable.
Make table entries smaller so that pdf and ps output is readable
(columns were being overwritten and garbled) by using abbreviations.
This allows the tables to fit on one page cleanly.
Add a Legend for the abbreviations:
SLIS: spin_lock_irqsave
SLI: spin_lock_irq
SL: spin_lock
SLBH: spin_lock_bh
DI: down_interruptible
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Align the output of % with K/M/G of sizes.
Check for empty NUMA information to avoid segfault on !NUMA.
-r should work directly not only if we match a single slab
without additional options.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
