]> err.no Git - linux-2.6/log
linux-2.6
18 years ago[PATCH] i2c: Semaphore to mutex conversions, part 2
Ingo Molnar [Wed, 18 Jan 2006 22:16:04 +0000 (23:16 +0100)]
[PATCH] i2c: Semaphore to mutex conversions, part 2

semaphore to mutex conversion.

the conversion was generated via scripts, and the result was validated
automatically via a script as well.

build tested.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] i2c: Speed up block transfers
Jean Delvare [Wed, 18 Jan 2006 22:14:55 +0000 (23:14 +0100)]
[PATCH] i2c: Speed up block transfers

Speed up i2c_smbus_write_block_data and i2c_smbus_read_i2c_block_data
a bit by using memcpy instead of an explicit loop.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] hwmon: w83792d drop useless macros
Jean Delvare [Wed, 18 Jan 2006 22:13:09 +0000 (23:13 +0100)]
[PATCH] hwmon: w83792d drop useless macros

Drop 3 useless macros in the w83792d hardware monitoring driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] hwmon: w83792d use arrays of attributes
Yuan Mu [Wed, 18 Jan 2006 22:11:55 +0000 (23:11 +0100)]
[PATCH] hwmon: w83792d use arrays of attributes

Use arrays of attributes in the w83792d driver.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Yuan Mu <ymu@winbond.com.tw>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] hwmon: Refactor SENSOR_DEVICE_ATTR_2
Jim Cromie [Wed, 18 Jan 2006 22:10:49 +0000 (23:10 +0100)]
[PATCH] hwmon: Refactor SENSOR_DEVICE_ATTR_2

This patch refactors SENSOR_DEVICE_ATTR_2 macro, following pattern set by
SENSOR_ATTR.  First it creates a new macro SENSOR_ATTR_2() which expands
to an initialization expression, then it uses that in SENSOR_DEVICE_ATTR_2,
which declares and initializes a struct sensor_device_attribute_2.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] I2C: fix sx200_acb build on other arches
Jean Delvare [Sun, 22 Jan 2006 11:28:57 +0000 (12:28 +0100)]
[PATCH] I2C: fix sx200_acb build on other arches

scx200_acb is only useful on a few Geode-based systems, and won't
compile on non-x86 systems due to the lack of asm/msr.h, as reported
by Andrew Morton. Thus, we should make that driver depend on X86.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
18 years ago[PATCH] i2c: scx200_acb minimal documentation update
Ben Gardner [Wed, 18 Jan 2006 21:53:09 +0000 (22:53 +0100)]
[PATCH] i2c: scx200_acb minimal documentation update

scx200_acb: Minimal documentation update

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] i2c: scx200_acb fix and speed up the poll loop
Ben Gardner [Wed, 18 Jan 2006 21:52:06 +0000 (22:52 +0100)]
[PATCH] i2c: scx200_acb fix and speed up the poll loop

scx200_acb: Fix and speed up the poll loop

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] i2c: scx200_acb add support for the CS5535/CS5536
Ben Gardner [Wed, 18 Jan 2006 21:48:26 +0000 (22:48 +0100)]
[PATCH] i2c: scx200_acb add support for the CS5535/CS5536

scx200_acb: Add support for the CS5535/CS5536

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
18 years ago[PATCH] i2c: scx200_acb remove use of lock_kernel
Ben Gardner [Wed, 18 Jan 2006 21:46:26 +0000 (22:46 +0100)]
[PATCH] i2c: scx200_acb remove use of lock_kernel

scx200_acb: remove use of lock_kernel()

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] i2c: scx200_acb refactor/simplify code
Ben Gardner [Wed, 18 Jan 2006 21:44:04 +0000 (22:44 +0100)]
[PATCH] i2c: scx200_acb refactor/simplify code

scx200_acb: refactor/simplify code (no functional changes)

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] i2c: scx200_acb debug log cleanup
Ben Gardner [Wed, 18 Jan 2006 21:43:10 +0000 (22:43 +0100)]
[PATCH] i2c: scx200_acb debug log cleanup

scx200_acb: debug log cleanup

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] i2c: scx200_acb whitespace and comment cleanup
Ben Gardner [Wed, 18 Jan 2006 21:41:50 +0000 (22:41 +0100)]
[PATCH] i2c: scx200_acb whitespace and comment cleanup

scx200_acb: Whitespace and comment cleanup

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] I2C: Convert i2c to mutexes
Arjan van de Ven [Wed, 11 Jan 2006 09:50:26 +0000 (10:50 +0100)]
[PATCH] I2C: Convert i2c to mutexes

The patch below converts a few i2c semaphores to mutexes

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] hwmon: Use attribute arrays in f71805f
Jean Delvare [Mon, 9 Jan 2006 22:29:11 +0000 (23:29 +0100)]
[PATCH] hwmon: Use attribute arrays in f71805f

Convert the f71805f driver to use arrays of attributes. This shrinks the
compiled module from 12.0 kB to 9.6 kB. We certainly should do the same
for as many hardware monitoring drivers as possible.

This, together with a nice chip design by Fintek, makes this driver
very small, both in terms of number of lines of code and memory
consumption.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] hwmon: Use attribute arrays in pc87360
Jim Cromie [Mon, 9 Jan 2006 22:24:41 +0000 (23:24 +0100)]
[PATCH] hwmon: Use attribute arrays in pc87360

Convert individual sensors to sensor-attr arrays by each sensor type,
and initialize them in loops instead of long blocks of individual calls.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] hwmon: Allow sensor attributes arrays
Jim Cromie [Mon, 9 Jan 2006 22:22:24 +0000 (23:22 +0100)]
[PATCH] hwmon: Allow sensor attributes arrays

This patch refactors SENSOR_DEVICE_ATTR macro.  First it creates a new
macro SENSOR_ATTR() which expands to an initialization expression, then
it uses that in SENSOR_DEVICE_ATTR, which declares and initializes a
struct sensor_device_attribute.

IOW, SENSOR_ATTR() imitates __ATTR() in include/linux/device.h.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 years ago[PATCH] reduce size of bio mempools
Benjamin LaHaise [Thu, 23 Mar 2006 11:01:08 +0000 (03:01 -0800)]
[PATCH] reduce size of bio mempools

The biovec default mempool limit of 256 entries results in over 3MB of RAM
being permanently pinned, even on systems with only 128MB of RAM.  Since
mempool tries to allocate from the system pool first, it makes sense to
reduce the size of the mempool fallbacks to a more reasonable limit of 1-5
entries -- enough for the system to be able to make progress even under
load.

Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
Acked-by: Jens Axboe <axboe@suse.de>
Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] __GENERIC_PER_CPU changes
Eric Dumazet [Thu, 23 Mar 2006 11:01:07 +0000 (03:01 -0800)]
[PATCH] __GENERIC_PER_CPU changes

Now CONFIG_DEBUG_INITDATA is in, initial percpu data
[__per_cpu_start,__per_cpu_end] can be declared as a redzone, and invalid
accesses after boot can be detected, at least for i386.

We can let non possible cpus percpu data point to this 'redzone' instead of
NULL .

NULL was not a good choice because part of [0..32768] memory may be
readable and invalid accesses may happen unnoticed.

If CONFIG_DEBUG_INITDATA is not defined, each non possible cpu points to
the initial percpu data (__per_cpu_offset[cpu] == 0), thus invalid accesses
wont be detected/crash.

This patch also moves __per_cpu_offset[] to read_mostly area to avoid false
sharing.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] more for_each_cpu() conversions
Andrew Morton [Thu, 23 Mar 2006 11:01:05 +0000 (03:01 -0800)]
[PATCH] more for_each_cpu() conversions

When we stop allocating percpu memory for not-possible CPUs we must not touch
the percpu data for not-possible CPUs at all.  The correct way of doing this
is to test cpu_possible() or to use for_each_cpu().

This patch is a kernel-wide sweep of all instances of NR_CPUS.  I found very
few instances of this bug, if any.  But the patch converts lots of open-coded
test to use the preferred helper macros.

Cc: Mikael Starvik <starvik@axis.com>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Kyle McMartin <kyle@parisc-linux.org>
Cc: Anton Blanchard <anton@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Christian Zankel <chris@zankel.net>
Cc: Philippe Elie <phil.el@wanadoo.fr>
Cc: Nathan Scott <nathans@sgi.com>
Cc: Jens Axboe <axboe@suse.de>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] Only allocate percpu data for possible CPUs
Eric Dumazet [Thu, 23 Mar 2006 11:01:04 +0000 (03:01 -0800)]
[PATCH] Only allocate percpu data for possible CPUs

percpu_data blindly allocates bootmem memory to store NR_CPUS instances of
cpudata, instead of allocating memory only for possible cpus.

This patch saves ram, allocating num_possible_cpus() (instead of NR_CPUS)
instances.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Acked-by: "David S. Miller" <davem@davemloft.net>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <axboe@suse.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Jens Axboe <axboe@suse.de>
Cc: Anton Blanchard <anton@samba.org>
Acked-by: William Irwin <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] get_empty_filp tweaks, inline epoll_init_file()
Benjamin LaHaise [Thu, 23 Mar 2006 11:01:03 +0000 (03:01 -0800)]
[PATCH] get_empty_filp tweaks, inline epoll_init_file()

Eliminate a handful of cache references by keeping current in a register
instead of reloading (helps x86) and avoiding the overhead of a function
call.  Inlining eventpoll_init_file() saves 24 bytes.  Also reorder file
initialization to make writes occur more sequentially.

Signed-off-by: Benjamin LaHaise <bcrl@linux.intel.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] atomic: add_unless cmpxchg optimise
Nick Piggin [Thu, 23 Mar 2006 11:01:02 +0000 (03:01 -0800)]
[PATCH] atomic: add_unless cmpxchg optimise

Without branch hints, the very unlikely chance of the loop repeating due to
cmpxchg failure is unrolled with gcc-4 that I have tested.

Improve this for architectures with a native cas/cmpxchg.  llsc archs
should try to implement this natively.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Andi Kleen <ak@muc.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] fs/*/file.c: drop insane header dependencies
Alexey Dobriyan [Thu, 23 Mar 2006 11:01:01 +0000 (03:01 -0800)]
[PATCH] fs/*/file.c: drop insane header dependencies

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] kernel/rcupdate.c: make two structs static
Adrian Bunk [Thu, 23 Mar 2006 11:01:00 +0000 (03:01 -0800)]
[PATCH] kernel/rcupdate.c: make two structs static

This patch makes two needlessly global structs static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] devpts: use lib/parser.c for parsing mount options
Domen Puncer [Thu, 23 Mar 2006 11:00:59 +0000 (03:00 -0800)]
[PATCH] devpts: use lib/parser.c for parsing mount options

Item from "2.6 should fix" list.

Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] BUILD_LOCK_OPS: cleanup preempt_disable() usage
Oleg Nesterov [Thu, 23 Mar 2006 11:00:58 +0000 (03:00 -0800)]
[PATCH] BUILD_LOCK_OPS: cleanup preempt_disable() usage

This patch changes the code from:

preempt_disable();
for (;;) {
...
preempt_disable();
}
to:
for (;;) {
preempt_disable();
...
}

which seems more clean to me and saves a couple of bytes for
each function.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] PnPBIOS: Missing SMALL_TAG_ENDDEP tag
Rene Herman [Thu, 23 Mar 2006 11:00:57 +0000 (03:00 -0800)]
[PATCH] PnPBIOS: Missing SMALL_TAG_ENDDEP tag

Without the attached, the kernel complains about my BIOS' PNP tables. It
was ACKed before, but never merged:

http://marc.theaimsgroup.com/?l=linux-kernel&m=110237794007900&w=2

Cc: Adam Belay <ambx1@neo.rr.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] pause_on_oops command line option
Andrew Morton [Thu, 23 Mar 2006 11:00:57 +0000 (03:00 -0800)]
[PATCH] pause_on_oops command line option

Attempt to fix the problem wherein people's oops reports scroll off the screen
due to repeated oopsing or to oopses on other CPUs.

If this happens the user can reboot with the `pause_on_oops=<seconds>' option.
It will allow the first oopsing CPU to print an oops record just a single
time.  Second oopsing attempts, or oopses on other CPUs will cause those CPUs
to enter a tight loop until the specified number of seconds have elapsed.

The patch implements the infrastructure generically in the expectation that
architectures other than x86 will find it useful.

Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] kill _INLINE_
Adrian Bunk [Thu, 23 Mar 2006 11:00:56 +0000 (03:00 -0800)]
[PATCH] kill _INLINE_

This patch removes all occurances of _INLINE_ in the kernel.

With the exception of tty_flip.h, I've simply removed the inline's since
gcc should know best which functions to be inlined.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] notifier: profile.h forward decl fix
Andrew Morton [Thu, 23 Mar 2006 11:00:55 +0000 (03:00 -0800)]
[PATCH] notifier: profile.h forward decl fix

Declarations use struct notifier_block on both legs of the ifdef, so move the
notifier_block forward declaration outside the ifdef.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] make bug messages more consistent
Ingo Molnar [Thu, 23 Mar 2006 11:00:54 +0000 (03:00 -0800)]
[PATCH] make bug messages more consistent

Consolidate all kernel bug printouts to begin with the "BUG: " string.
Makes it easier to find them in large bootup logs.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] ufs: switch to inode_inc_count, inode_dec_count
Alexey Dobriyan [Thu, 23 Mar 2006 11:00:53 +0000 (03:00 -0800)]
[PATCH] ufs: switch to inode_inc_count, inode_dec_count

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] ext2: switch to inode_inc_count, inode_dec_count
Alexey Dobriyan [Thu, 23 Mar 2006 11:00:53 +0000 (03:00 -0800)]
[PATCH] ext2: switch to inode_inc_count, inode_dec_count

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sysv: switch to inode_inc_count, inode_dec_count
Alexey Dobriyan [Thu, 23 Mar 2006 11:00:52 +0000 (03:00 -0800)]
[PATCH] sysv: switch to inode_inc_count, inode_dec_count

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] minix: switch to inode_inc_link_count, inode_dec_link_count
Alexey Dobriyan [Thu, 23 Mar 2006 11:00:51 +0000 (03:00 -0800)]
[PATCH] minix: switch to inode_inc_link_count, inode_dec_link_count

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] Extract inode_inc_link_count(), inode_dec_link_count()
Alexey Dobriyan [Thu, 23 Mar 2006 11:00:51 +0000 (03:00 -0800)]
[PATCH] Extract inode_inc_link_count(), inode_dec_link_count()

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] fs/ufs/file.c: drop insane header dependencies
Alexey Dobriyan [Thu, 23 Mar 2006 11:00:50 +0000 (03:00 -0800)]
[PATCH] fs/ufs/file.c: drop insane header dependencies

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sigprocmask: kill unneeded temp var
Oleg Nesterov [Thu, 23 Mar 2006 11:00:49 +0000 (03:00 -0800)]
[PATCH] sigprocmask: kill unneeded temp var

Cleanup, remove unneeded double copying of current->blocked.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] snsc kmalloc2kzalloc
Jes Sorensen [Thu, 23 Mar 2006 11:00:49 +0000 (03:00 -0800)]
[PATCH] snsc kmalloc2kzalloc

Change driver to use kzalloc rather than kmalloc+memset

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] fat_lock is used as a mutex, convert it to using the new mutex primitive
Arjan van de Ven [Thu, 23 Mar 2006 11:00:48 +0000 (03:00 -0800)]
[PATCH] fat_lock is used as a mutex, convert it to using the new mutex primitive

The fat code uses the fat_lock always in a mutex way (taking and releasing
the lock in the same function), the patch below converts it into the new
mutex primitive.  Please consider this patch for the code.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] oss: semaphore to mutex conversion
Ingo Molnar [Thu, 23 Mar 2006 11:00:47 +0000 (03:00 -0800)]
[PATCH] oss: semaphore to mutex conversion

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Extracted for OSS/Free changes from Ingo's original patches.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] kernel/module.c Semaphore to Mutex Conversion for module_mutex
Ashutosh Naik [Thu, 23 Mar 2006 11:00:46 +0000 (03:00 -0800)]
[PATCH] kernel/module.c Semaphore to Mutex Conversion for module_mutex

This patch converts the module_mutex semaphore to a mutex.

Signed-off-by: Ashutosh Naik <ashutosh.naik@gmail.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: drivers/ide
Arjan van de Ven [Thu, 23 Mar 2006 11:00:45 +0000 (03:00 -0800)]
[PATCH] sem2mutex: drivers/ide

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: serial ->port_write_mutex
Ingo Molnar [Thu, 23 Mar 2006 11:00:44 +0000 (03:00 -0800)]
[PATCH] sem2mutex: serial ->port_write_mutex

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: UDF
Ingo Molnar [Thu, 23 Mar 2006 11:00:44 +0000 (03:00 -0800)]
[PATCH] sem2mutex: UDF

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: NCPFS
Ingo Molnar [Thu, 23 Mar 2006 11:00:43 +0000 (03:00 -0800)]
[PATCH] sem2mutex: NCPFS

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] convert ext3's truncate_sem to a mutex
Arjan van de Ven [Thu, 23 Mar 2006 11:00:42 +0000 (03:00 -0800)]
[PATCH] convert ext3's truncate_sem to a mutex

ext3's truncate_sem is always released in the same function it's taken
and it otherwise is a mutex as well..

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: HPFS
Ingo Molnar [Thu, 23 Mar 2006 11:00:42 +0000 (03:00 -0800)]
[PATCH] sem2mutex: HPFS

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: autofs4 wq_sem
Ingo Molnar [Thu, 23 Mar 2006 11:00:41 +0000 (03:00 -0800)]
[PATCH] sem2mutex: autofs4 wq_sem

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: JFFS
Ingo Molnar [Thu, 23 Mar 2006 11:00:40 +0000 (03:00 -0800)]
[PATCH] sem2mutex: JFFS

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: sound/oss/
Ingo Molnar [Thu, 23 Mar 2006 11:00:39 +0000 (03:00 -0800)]
[PATCH] sem2mutex: sound/oss/

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: drivers/block/nbd.c
Ingo Molnar [Thu, 23 Mar 2006 11:00:38 +0000 (03:00 -0800)]
[PATCH] sem2mutex: drivers/block/nbd.c

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Paul Clements <Paul.Clements@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: drivers/block/loop.c
Ingo Molnar [Thu, 23 Mar 2006 11:00:38 +0000 (03:00 -0800)]
[PATCH] sem2mutex: drivers/block/loop.c

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: fs/seq_file.c
Ingo Molnar [Thu, 23 Mar 2006 11:00:37 +0000 (03:00 -0800)]
[PATCH] sem2mutex: fs/seq_file.c

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: fs/libfs.c
Ingo Molnar [Thu, 23 Mar 2006 11:00:36 +0000 (03:00 -0800)]
[PATCH] sem2mutex: fs/libfs.c

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: kprobes
Ingo Molnar [Thu, 23 Mar 2006 11:00:35 +0000 (03:00 -0800)]
[PATCH] sem2mutex: kprobes

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: jbd, j_checkpoint_mutex
Arjan van de Ven [Thu, 23 Mar 2006 11:00:35 +0000 (03:00 -0800)]
[PATCH] sem2mutex: jbd, j_checkpoint_mutex

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: iprune
Ingo Molnar [Thu, 23 Mar 2006 11:00:34 +0000 (03:00 -0800)]
[PATCH] sem2mutex: iprune

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: vfs_rename_mutex
Arjan van de Ven [Thu, 23 Mar 2006 11:00:33 +0000 (03:00 -0800)]
[PATCH] sem2mutex: vfs_rename_mutex

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: eventpoll
Arjan van de Ven [Thu, 23 Mar 2006 11:00:32 +0000 (03:00 -0800)]
[PATCH] sem2mutex: eventpoll

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: tty
Ingo Molnar [Thu, 23 Mar 2006 11:00:31 +0000 (03:00 -0800)]
[PATCH] sem2mutex: tty

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: inotify
Ingo Molnar [Thu, 23 Mar 2006 11:00:30 +0000 (03:00 -0800)]
[PATCH] sem2mutex: inotify

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: John McCutchan <ttb@tentacle.dhs.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Acked-by: Robert Love <rml@novell.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: quota
Ingo Molnar [Thu, 23 Mar 2006 11:00:29 +0000 (03:00 -0800)]
[PATCH] sem2mutex: quota

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Jan Kara <jack@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: blockdev #2
Arjan van de Ven [Thu, 23 Mar 2006 11:00:28 +0000 (03:00 -0800)]
[PATCH] sem2mutex: blockdev #2

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: drivers/char/
Ingo Molnar [Thu, 23 Mar 2006 11:00:27 +0000 (03:00 -0800)]
[PATCH] sem2mutex: drivers/char/

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: drivers/block/floppy.c
Jes Sorensen [Thu, 23 Mar 2006 11:00:26 +0000 (03:00 -0800)]
[PATCH] sem2mutex: drivers/block/floppy.c

Convert from semaphore to mutex.
Untested as I have no access to a floppy drive at the moment.

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: drivers/block/pktcdvd.c
Jes Sorensen [Thu, 23 Mar 2006 11:00:25 +0000 (03:00 -0800)]
[PATCH] sem2mutex: drivers/block/pktcdvd.c

Convert to use mutex from a semaphore

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Peter Osterlund <petero2@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: kernel/
Arjan van de Ven [Thu, 23 Mar 2006 11:00:24 +0000 (03:00 -0800)]
[PATCH] sem2mutex: kernel/

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: drivers/scsi/ide-scsi.c
Jes Sorensen [Thu, 23 Mar 2006 11:00:22 +0000 (03:00 -0800)]
[PATCH] sem2mutex: drivers/scsi/ide-scsi.c

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Jens Axboe <axboe@suse.de>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: drivers: raw, connector, dcdbas, ppp_generic
Arjan van de Ven [Thu, 23 Mar 2006 11:00:21 +0000 (03:00 -0800)]
[PATCH] sem2mutex: drivers: raw, connector, dcdbas, ppp_generic

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sem2mutex: kcapi.c
Arjan van de Ven [Thu, 23 Mar 2006 11:00:21 +0000 (03:00 -0800)]
[PATCH] sem2mutex: kcapi.c

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] convert fs/9p/ to mutexes, fix locking bugs
Ingo Molnar [Thu, 23 Mar 2006 11:00:19 +0000 (03:00 -0800)]
[PATCH] convert fs/9p/ to mutexes, fix locking bugs

Convert fs/9p/mux.c from semaphore to mutex.

NOTE: fixed locking bugs in the process - the code was using semaphores
the other way around.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] convert kernel/rcupdate.c:rcu_barrier_sema to mutex
Ingo Molnar [Thu, 23 Mar 2006 11:00:19 +0000 (03:00 -0800)]
[PATCH] convert kernel/rcupdate.c:rcu_barrier_sema to mutex

Convert kernel/rcupdate's rcu_barrier_sema to mutex.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] kernel/cpuset.c, mutex conversion
Ingo Molnar [Thu, 23 Mar 2006 11:00:18 +0000 (03:00 -0800)]
[PATCH] kernel/cpuset.c, mutex conversion

convert cpuset.c's callback_sem and manage_sem to mutexes.
Build and boot tested by Ingo.
Build, boot, unit and stress tested by pj.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] Fix oops in invalidate_dquots()
Jan Kara [Thu, 23 Mar 2006 11:00:17 +0000 (03:00 -0800)]
[PATCH] Fix oops in invalidate_dquots()

When quota is being turned off we assumed that all the references to dquots
were already dropped.  That need not be true as inodes being deleted are
not on superblock's inodes list and hence we need not reach it when
removing quota references from inodes.  So invalidate_dquots() has to wait
for all the users of dquots (as quota is already marked as turned off, no
new references can be acquired and so this is bound to happen rather
early).  When we do this, we can also remove the iprune_sem locking as it
was protecting us against exactly the same problem when freeing inodes
icache memory.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] Move read_mostly definition to asm/cache.h
Kyle McMartin [Thu, 23 Mar 2006 11:00:16 +0000 (03:00 -0800)]
[PATCH] Move read_mostly definition to asm/cache.h

Seems like needless clutter having a bunch of #if defined(CONFIG_$ARCH) in
include/linux/cache.h.  Move the per architecture section definition to
asm/cache.h, and keep the if-not-defined dummy case in linux/cache.h to
catch architectures which don't implement the section.

Verified that symbols still go in .data.read_mostly on parisc,
and the compile doesn't break.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] kill cdrom ->dev_ioctl method
Christoph Hellwig [Thu, 23 Mar 2006 11:00:15 +0000 (03:00 -0800)]
[PATCH] kill cdrom ->dev_ioctl method

Since early 2.4.x all cdrom drivers implement the block_device methods
themselves, so they can handle additional ioctls directly instead of going
through the cdrom layer.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] cleanup cdrom_ioctl
Christoph Hellwig [Thu, 23 Mar 2006 11:00:14 +0000 (03:00 -0800)]
[PATCH] cleanup cdrom_ioctl

Add a small helper for each ioctl to cut down cdrom_ioctl to a readable
size.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Acked-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] Avoid taking global tasklist_lock for single threadedprocess at getrusage()
Ravikiran G Thirumalai [Thu, 23 Mar 2006 11:00:13 +0000 (03:00 -0800)]
[PATCH] Avoid taking global tasklist_lock for single threadedprocess at getrusage()

Avoid taking the global tasklist_lock when possible, if a process is single
threaded during getrusage().  Any avoidance of tasklist_lock is good for
NUMA boxes (and possibly for large SMPs).  Thanks to Oleg Nesterov for
review and suggestions.

Signed-off-by: Nippun Goel <nippung@calsoftinc.com>
Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] Shrinks sizeof(files_struct) and better layout
Eric Dumazet [Thu, 23 Mar 2006 11:00:12 +0000 (03:00 -0800)]
[PATCH] Shrinks sizeof(files_struct) and better layout

1) Reduce the size of (struct fdtable) to exactly 64 bytes on 32bits
   platforms, lowering kmalloc() allocated space by 50%.

2) Reduce the size of (files_struct), using a special 32 bits (or
   64bits) embedded_fd_set, instead of a 1024 bits fd_set for the
   close_on_exec_init and open_fds_init fields.  This save some ram (248
   bytes per task) as most tasks dont open more than 32 files.  D-Cache
   footprint for such tasks is also reduced to the minimum.

3) Reduce size of allocated fdset.  Currently two full pages are
   allocated, that is 32768 bits on x86 for example, and way too much.  The
   minimum is now L1_CACHE_BYTES.

UP and SMP should benefit from this patch, because most tasks will touch
only one cache line when open()/close() stdin/stdout/stderr (0/1/2),
(next_fd, close_on_exec_init, open_fds_init, fd_array[0 ..  2] being in the
same cache line)

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] ext3_readdir: use generic readahead
Andrew Morton [Thu, 23 Mar 2006 11:00:11 +0000 (03:00 -0800)]
[PATCH] ext3_readdir: use generic readahead

Linus points out that ext3_readdir's readahead only cuts in when
ext3_readdir() is operating at the very start of the directory.  So for large
directories we end up performing no readahead at all and we suck.

So take it all out and use the core VM's page_cache_readahead().  This means
that ext3 directory reads will use all of readahead's dynamic sizing goop.

Note that we're using the directory's filp->f_ra to hold the readahead state,
but readahead is actually being performed against the underlying blockdev's
address_space.  Fortunately the readahead code is all set up to handle this.

Tested with printk.  It works.  I was struggling to find a real workload which
actually cared.

(The patch also exports page_cache_readahead() to GPL modules)

Cc: "Stephen C. Tweedie" <sct@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] m68k: rtc driver cleanup
Jean Delvare [Thu, 23 Mar 2006 11:00:09 +0000 (03:00 -0800)]
[PATCH] m68k: rtc driver cleanup

Use the standard BCD macros instead of redefining them.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] swsusp: add s2ram ioctl to userland interface
Luca Tettamanti [Thu, 23 Mar 2006 11:00:09 +0000 (03:00 -0800)]
[PATCH] swsusp: add s2ram ioctl to userland interface

Add the SNAPSHOT_S2RAM ioctl to the snapshot device.

This ioctl allows a userland application to make the system (previously frozen
with the SNAPSHOT_FREE ioctl) enter the S3 state without freezing processes
and disabling nonboot CPUs for the second time.

This will allow us to implement the suspend-to-disk-and-RAM (STDR)
functionality in the userland suspend tools.

Signed-off-by: Luca Tettamanti <kronos.it@gmail.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] swsusp: let userland tools switch console on suspend
Rafael J. Wysocki [Thu, 23 Mar 2006 11:00:08 +0000 (03:00 -0800)]
[PATCH] swsusp: let userland tools switch console on suspend

Remove the console-switching code from the suspend part of the swsusp userland
interface and let the userland tools switch the console.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] swsusp: add check for suspension of X-controlled devices
Rafael J. Wysocki [Thu, 23 Mar 2006 11:00:07 +0000 (03:00 -0800)]
[PATCH] swsusp: add check for suspension of X-controlled devices

It is unsafe to suspend devices if the hardware is controlled by X.  Add an
extra check to prevent this from happening.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] swsusp: drain high mem pages
Shaohua Li [Thu, 23 Mar 2006 11:00:06 +0000 (03:00 -0800)]
[PATCH] swsusp: drain high mem pages

Highmem could be in pcp list as well.

Signed-off-by: Shaohua Li<shaohua.li@intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] swsusp: finally solve mysqld problem
Rafael J. Wysocki [Thu, 23 Mar 2006 11:00:05 +0000 (03:00 -0800)]
[PATCH] swsusp: finally solve mysqld problem

This patch from Pavel moves userland freeze signals handling into more logical
place.  It now hits even with mysqld running.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] suspend: make progress printing prettier
Pavel Machek [Thu, 23 Mar 2006 11:00:05 +0000 (03:00 -0800)]
[PATCH] suspend: make progress printing prettier

Combination of printk/pr_debug led to <7> in the middle of the line, and we
printed way too many dots.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] swsusp: freeze user space processes first
Rafael J. Wysocki [Thu, 23 Mar 2006 11:00:04 +0000 (03:00 -0800)]
[PATCH] swsusp: freeze user space processes first

Allow swsusp to freeze processes successfully under heavy load by freezing
userspace processes before kernel threads.

[Thanks to Nigel Cunningham <nigel@suspend2.net> for suggesting the
way to go.]

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] swsusp: userland interface
Rafael J. Wysocki [Thu, 23 Mar 2006 11:00:03 +0000 (03:00 -0800)]
[PATCH] swsusp: userland interface

This patch introduces a user space interface for swsusp.

The interface is based on a special character device, called the snapshot
device, that allows user space processes to perform suspend and resume-related
operations with the help of some ioctls and the read()/write() functions.
 Additionally it allows these processes to allocate free swap pages from a
selected swap partition, called the resume partition, so that they know which
sectors of the resume partition are available to them.

The interface uses the same low-level system memory snapshot-handling
functions that are used by the built-it swap-writing/reading code of swsusp.

The interface documentation is included in the patch.

The patch assumes that the major and minor numbers of the snapshot device will
be 10 (ie.  misc device) and 231, the registration of which has already been
requested.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] swsusp: documentation updates
Pavel Machek [Thu, 23 Mar 2006 11:00:02 +0000 (03:00 -0800)]
[PATCH] swsusp: documentation updates

Update suspend-to-RAM documentation with new machines, and makes message
when processes can't be stopped little clearer.  (In one case, waiting
longer actually did help).

From: "Rafael J. Wysocki" <rjw@sisk.pl>

  Warn in the documentation that data may be lost if there are some
  filesystems mounted from USB devices before suspend.

  [Thanks to Alan Stern for providing the answer to the question in the
  Q:-A: part.]

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] kernel/power: move externs to header files
Randy Dunlap [Thu, 23 Mar 2006 11:00:01 +0000 (03:00 -0800)]
[PATCH] kernel/power: move externs to header files

Move externs from C source files to header files.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] swsusp: separate swap-writing/reading code
Rafael J. Wysocki [Thu, 23 Mar 2006 11:00:00 +0000 (03:00 -0800)]
[PATCH] swsusp: separate swap-writing/reading code

Move the swap-writing/reading code of swsusp to a separate file.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] swsusp: low level interface
Rafael J. Wysocki [Thu, 23 Mar 2006 10:59:59 +0000 (02:59 -0800)]
[PATCH] swsusp: low level interface

Introduce the low level interface that can be used for handling the
snapshot of the system memory by the in-kernel swap-writing/reading code of
swsusp and the userland interface code (to be introduced shortly).

Also change the way in which swsusp records the allocated swap pages and,
consequently, simplifies the in-kernel swap-writing/reading code (this is
necessary for the userland interface too).  To this end, it introduces two
helper functions in mm/swapfile.c, so that the swsusp code does not refer
directly to the swap internals.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] revert "swsusp: fix breakage with swap on lvm"
Andrew Morton [Thu, 23 Mar 2006 10:59:58 +0000 (02:59 -0800)]
[PATCH] revert "swsusp: fix breakage with swap on lvm"

This was a temporary thing for 2.6.16.

Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] x86 topology: don;t create a control file for BSP that cannot be removed
Ashok Raj [Thu, 23 Mar 2006 10:59:57 +0000 (02:59 -0800)]
[PATCH] x86 topology: don;t create a control file for BSP that cannot be removed

Don't create "online" control file for BSP (i386/x86_64) since its
not removable.

We originally added this to support ppc64 if the kernel has support but
BIOS indicated no offline support, we just didnt create online files for
them.

We used the same method in ia64 as well, if we have a cpu taking platform
interrupts but cannot be removed if those interrupts cannot be re-targeted
to another cpu.

Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] x86: Make _syscallX() macros compile in PIC mode
Markus Gutschke [Thu, 23 Mar 2006 10:59:56 +0000 (02:59 -0800)]
[PATCH] x86: Make _syscallX() macros compile in PIC mode

Gcc reserves %ebx when compiling position-independent-code on i386.  This
means, the _syscallX() macros in include/asm-i386/unistd.h will not
compile.  This patch is changes the existing macros to take special care to
preserve %ebx.

The bug can be tracked at http://bugzilla.kernel.org/show_bug.cgi?id=6204

Signed-off-by: Markus Gutschke <markus@google.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] x86: some fixups for the X86_NUMAQ dependencies
Adrian Bunk [Thu, 23 Mar 2006 10:59:55 +0000 (02:59 -0800)]
[PATCH] x86: some fixups for the X86_NUMAQ dependencies

You must always ensure to fulfill the dependencies of what you are
select'ing.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Martin Bligh <mbligh@google.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] i386 spinlocks: disable interrupts only if we enabled them
Chuck Ebbert [Thu, 23 Mar 2006 10:59:55 +0000 (02:59 -0800)]
[PATCH] i386 spinlocks: disable interrupts only if we enabled them

_raw_spin_lock_flags() is entered with interrupts disabled.  If it cannot
obtain a spinlock, it checks the flags that were passed and re-enables
interrupts before spinning if that's how the flags are set.  When the
spinlock might be available, it disables interrupts (even if they are
already disabled) before trying to get the lock.  Change that so interrupts
are only disabled if they have been enabled.  This costs nine bytes of
duplicated spinloop code.

Fastpath before patch:
        jle <keep looping>      not-taken conditional jump
        cli                     disable interrupts
        jmp <try for lock>      unconditional jump

Fastpath after patch, if interrupts were not enabled:
        jg <try for lock>       taken conditional branch

Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>