14 years ago[NET]: Kill Documentation/networking/TODO
David S. Miller [Tue, 28 Mar 2006 07:28:44 +0000]
[NET]: Kill Documentation/networking/TODO

Sorely out of date.  Add the linux-net wiki web site to
the NETWORKING maintainers entry, on which we maintain
the current networking TODO list.

Noticed by Randy Dunlap.

Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[TG3]: Update version and reldate
Michael Chan [Tue, 28 Mar 2006 07:21:07 +0000]
[TG3]: Update version and reldate

Update version to 3.55.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[TG3]: Skip timer code during full lock
Michael Chan [Tue, 28 Mar 2006 07:20:14 +0000]
[TG3]: Skip timer code during full lock

Skip the main timer code if interrupts are disabled in the full lock
state.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[TG3]: Speed up SRAM access
Michael Chan [Tue, 28 Mar 2006 07:19:00 +0000]
[TG3]: Speed up SRAM access

Speed up SRAM read and write functions if possible by using MMIO
instead of config. cycles. With this change, the post reset signature
done at the end of D3 power change must now be moved before the D3
power change.

IBM reported a problem on powerpc blades during ethtool self test
that was caused by the memory test taking excessively long. Config.
cycles are very slow on powerpc and the memory test can take more
than 10 seconds to complete using config. cycles. As a result, NETDEV
WATCHDOG can be triggered during self test and the chip can end up in
a funny state.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[TG3]: Fix PHY loopback on 5700
Michael Chan [Tue, 28 Mar 2006 07:17:27 +0000]
[TG3]: Fix PHY loopback on 5700

Fix PHY loopback failure on some 5700 devices.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[TG3]: Fix bug in 40-bit DMA workaround code
Michael Chan [Tue, 28 Mar 2006 07:16:49 +0000]
[TG3]: Fix bug in 40-bit DMA workaround code

Need to check the TG3_FLAG_40BIT_DMA_BUG flag in the workaround code
path instead of device flags.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[TG3]: Fix probe failure due to invalid MAC address
Michael Chan [Tue, 28 Mar 2006 07:14:53 +0000]
[TG3]: Fix probe failure due to invalid MAC address

Some older bootcode in some devices may report 0 MAC address in
SRAM when booting up from low power state. This patch fixes the
problem by checking for a valid MAC address in SRAM and falling back
to NVRAM if necessary.

Thanks to walt <wa1ter@myrealbox.com> for reporting the problem
and helping to debug it.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

14 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Tue, 28 Mar 2006 21:53:03 +0000]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 3388/1: ixp23xx: add core ixp23xx support
  [ARM] 3417/1: add support for logicpd pxa270 card engine
  [ARM] 3387/1: ixp23xx: add defconfig
  [ARM] 3377/2: add support for intel xsc3 core
  [ARM] Move ice-dcc code into misc.c
  [ARM] Fix decompressor serial IO to give CRLF not LFCR
  [ARM] proc-v6: mark page table walks outer-cacheable, shared.  Enable NX.
  [ARM] nommu: trivial patch for arch/arm/lib/Makefile
  [ARM] 3416/1: Update LART site URL
  [ARM] 3415/1: Akita: Add missing EXPORT_SYMBOL
  [ARM] 3414/1: ep93xx: reset ethernet controller before uncompressing

14 years agoMerge master.kernel.org:/home/rmk/linux-2.6-serial
Linus Torvalds [Tue, 28 Mar 2006 21:52:37 +0000]
Merge master.kernel.org:/home/rmk/linux-2.6-serial

* master.kernel.org:/home/rmk/linux-2.6-serial:
  [SERIAL] Provide Cirrus EP93xx AMBA PL010 serial support.
  [SERIAL] amba-pl010: allow platforms to specify modem control method
  [SERIAL] Remove obsoleted au1x00_uart driver
  [SERIAL] Small time UART configuration fix for AU1100 processor

14 years ago[ARM] 3388/1: ixp23xx: add core ixp23xx support
Lennert Buytenhek [Tue, 28 Mar 2006 20:18:54 +0000]
[ARM] 3388/1: ixp23xx: add core ixp23xx support

Patch from Lennert Buytenhek

This patch adds support for the Intel ixp23xx series of CPUs.  The
ixp23xx is an XSC3 based CPU with 512K of L2 cache, a 64bit 66MHz PCI
interface, two DDR RAM interfaces, QDR RAM interfaces, two gigabit
MACs, two 10/100 MACs, expansion bus, four microengines, a Media and
Switch Fabric unit almost identical to the one on the ixp2400, two
xscale (8250ish) UARTs and a bunch of other stuff.

This patch adds the core ixp23xx support code, and support for the
ADI Engineering Roadrunner, Intel IXDP2351, and IP Fabrics Double
Espresso platforms.

Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

14 years ago[ARM] 3417/1: add support for logicpd pxa270 card engine
Lennert Buytenhek [Tue, 28 Mar 2006 20:08:13 +0000]
[ARM] 3417/1: add support for logicpd pxa270 card engine

Patch from Lennert Buytenhek

Add support for the LogicPD PXA270 Card Engine.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

14 years ago[ARM] 3387/1: ixp23xx: add defconfig
Lennert Buytenhek [Tue, 28 Mar 2006 20:02:26 +0000]
[ARM] 3387/1: ixp23xx: add defconfig

Patch from Lennert Buytenhek

Add ixp23xx defconfig.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

14 years ago[ARM] 3377/2: add support for intel xsc3 core
Lennert Buytenhek [Tue, 28 Mar 2006 20:00:40 +0000]
[ARM] 3377/2: add support for intel xsc3 core

Patch from Lennert Buytenhek

This patch adds support for the new XScale v3 core.  This is an
ARMv5 ISA core with the following additions:

- L2 cache
- I/O coherency support (on select chipsets)
- Low-Locality Reference cache attributes (replaces mini-cache)
- Supersections (v6 compatible)
- 36-bit addressing (v6 compatible)
- Single instruction cache line clean/invalidate
- LRU cache replacement (vs round-robin)

I attempted to merge the XSC3 support into proc-xscale.S, but XSC3
cores have separate errata and have to handle things like L2, so it
is simpler to keep it separate.

L2 cache support is currently a build option because the L2 enable
bit must be set before we enable the MMU and there is no easy way to
capture command line parameters at this point.

There are still optimizations that can be done such as using LLR for
copypage (in theory using the exisiting mini-cache code) but those
can be addressed down the road.

Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

14 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq
Linus Torvalds [Tue, 28 Mar 2006 17:48:32 +0000]
Merge /pub/scm/linux/kernel/git/davej/cpufreq

* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] cpufreq_conservative: keep ignore_nice_load and freq_step values when reselected
  [CPUFREQ] powernow: remove private for_each_cpu_mask()
  [CPUFREQ] hotplug cpu fix for powernow-k8
  [PATCH] cpufreq_ondemand: add range check
  [PATCH] cpufreq_ondemand: keep ignore_nice_load value when it is reselected
  [PATCH] cpufreq_ondemand: Warn if it cannot run due to too long transition latency
  [PATCH] cpufreq_conservative: alternative initialise approach
  [PATCH] cpufreq_conservative: make for_each_cpu() safe
  [PATCH] cpufreq_conservative: alter default responsiveness
  [PATCH] cpufreq_conservative: aligning of codebase with ondemand

14 years agoMerge branch 'cfq-merge' of git://brick.kernel.dk/data/git/linux-2.6-block
Linus Torvalds [Tue, 28 Mar 2006 17:25:44 +0000]
Merge branch 'cfq-merge' of git://brick.kernel.dk/data/git/linux-2.6-block

* 'cfq-merge' of git://brick.kernel.dk/data/git/linux-2.6-block:
  [BLOCK] cfq-iosched: seek and async performance fixes
  [PATCH] ll_rw_blk: fix 80-col offender in put_io_context()
  [PATCH] cfq-iosched: small cfq_choose_req() optimization
  [PATCH] [BLOCK] cfq-iosched: change cfq io context linking from list to tree

14 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Tue, 28 Mar 2006 17:25:22 +0000]
Merge /pub/scm/linux/kernel/git/davem/sparc-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Implement futex_atomic_cmpxchg_inatomic().

14 years ago[CPUFREQ] cpufreq_conservative: keep ignore_nice_load and freq_step values when resel...
Mattia Dongili [Mon, 27 Mar 2006 20:55:55 +0000]
[CPUFREQ] cpufreq_conservative: keep ignore_nice_load and freq_step values when reselected

Keep the value of ignore_nice_load and freq_step of the conservative
governor after the governor is deselected and reselected.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Dave Jones <davej@redhat.com>

14 years ago[PATCH] compat_sys_futex() warning fix
Andrew Morton [Tue, 28 Mar 2006 09:56:55 +0000]
[PATCH] compat_sys_futex() warning fix

kernel/futex_compat.c: In function `compat_sys_futex':
kernel/futex_compat.c:140: warning: passing arg 1 of `do_futex' makes integer from pointer without a cast
kernel/futex_compat.c:140: warning: passing arg 5 of `do_futex' makes integer from pointer without a cast

Not sure what Ingo was thinking of here.  Put the casts back in.

Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] sound: Remove unneeded kmalloc() return value casts
Jesper Juhl [Tue, 28 Mar 2006 09:56:54 +0000]
[PATCH] sound: Remove unneeded kmalloc() return value casts

Get rid of unnessesary casts of kmalloc() return value in sound/

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] Typo fixes
Alexey Dobriyan [Tue, 28 Mar 2006 09:56:53 +0000]
[PATCH] Typo fixes

Fix a lot of typos.  Eyeballed by jmc@ in OpenBSD.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] trivial typos in Documentation/cputopology.txt
Jesper Juhl [Tue, 28 Mar 2006 09:56:52 +0000]
[PATCH] trivial typos in Documentation/cputopology.txt

Fix a few trivial mistakes in Documentation/cputopology.txt

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] fix signed vs unsigned in nmi watchdog
Jesper Juhl [Tue, 28 Mar 2006 09:56:52 +0000]
[PATCH] fix signed vs unsigned in nmi watchdog

Fix "signed vs unsigned" in nmi_watchdog_tick.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] vfree does its own NULL check, no need to be explicit in oss/msnd.c
Jesper Juhl [Tue, 28 Mar 2006 09:56:51 +0000]
[PATCH] vfree does its own NULL check, no need to be explicit in oss/msnd.c

vfree() does it's own NULL checking, no need for explicit check before
calling it.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] no need to check vfree arg for null in oss/sequencer
Jesper Juhl [Tue, 28 Mar 2006 09:56:50 +0000]
[PATCH] no need to check vfree arg for null in oss/sequencer

There's no need to check pointers for NULL before handing them to vfree().

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] maestro3 vfree NULL check fixup
Jesper Juhl [Tue, 28 Mar 2006 09:56:49 +0000]
[PATCH] maestro3 vfree NULL check fixup

vfree() checks for NULL, no need to do it explicitly.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Zach Brown <zab@zabbo.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] vfree NULL check fixup for sb_card
Jesper Juhl [Tue, 28 Mar 2006 09:56:49 +0000]
[PATCH] vfree NULL check fixup for sb_card

There's no need to check the vfree() argument for NULL.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] Replace 0xff.. with correct DMA_xBIT_MASK
Matthias Gehre [Tue, 28 Mar 2006 09:56:48 +0000]
[PATCH] Replace 0xff.. with correct DMA_xBIT_MASK

Replace all occurences of 0xff..  in calls to function pci_set_dma_mask()
and pci_set_consistant_dma_mask() with the corresponding DMA_xBIT_MASK from
linux/dma-mapping.h.

Signed-off-by: Matthias Gehre <M.Gehre@gmx.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] drivers/scsi/*: use time_after() and friends
Marcelo Feitoza Parisi [Tue, 28 Mar 2006 09:56:47 +0000]
[PATCH] drivers/scsi/*: use time_after() and friends

They deal with wrapping correctly and are nicer to read.

Signed-off-by: Marcelo Feitoza Parisi <marcelo@feitoza.com.br>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] ide-tape: use time_after(), time_after_eq()
Marcelo Feitoza Parisi [Tue, 28 Mar 2006 09:56:46 +0000]
[PATCH] ide-tape: use time_after(), time_after_eq()

They deal with wrapping correctly and are nicer to read.

Signed-off-by: Marcelo Feitoza Parisi <marcelo@feitoza.com.br>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] nvidia-agp: use time_before_eq()
Marcelo Feitoza Parisi [Tue, 28 Mar 2006 09:56:45 +0000]
[PATCH] nvidia-agp: use time_before_eq()

It deals with wrapping correctly and is nicer to read.

Signed-off-by: Marcelo Feitoza Parisi <marcelo@feitoza.com.br>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] drivers/block/*: use time_after() and friends
Marcelo Feitoza Parisi [Tue, 28 Mar 2006 09:56:44 +0000]
[PATCH] drivers/block/*: use time_after() and friends

They deal with wrapping correctly and are nicer to read.

Signed-off-by: Marcelo Feitoza Parisi <marcelo@feitoza.com.br>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] arch/i386/kernel/microcode.c: remove the obsolete microcode_ioctl
Adrian Bunk [Tue, 28 Mar 2006 09:56:43 +0000]
[PATCH] arch/i386/kernel/microcode.c: remove the obsolete microcode_ioctl

Nowadays, even Debian stable ships a microcode_ctl utility recent enough to no
longer use this ioctl.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Tigran Aivazian <tigran_aivazian@symantec.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] Docs update: missing files and descriptions for filesystems/00-INDEX
Jesper Juhl [Tue, 28 Mar 2006 09:56:43 +0000]
[PATCH] Docs update: missing files and descriptions for filesystems/00-INDEX

Add missing files and descriptions to
 Documentation/filesystems/00-INDEX

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] Make most file operations structs in fs/ const
Arjan van de Ven [Tue, 28 Mar 2006 09:56:42 +0000]
[PATCH] Make most file operations structs in fs/ const

This is a conversion to make the various file_operations structs in fs/
const.  Basically a regexp job, with a few manual fixups

The goal is both to increase correctness (harder to accidentally write to
shared datastructures) and reducing the false sharing of cachelines with
things that get dirty in .data (while .rodata is nicely read only and thus
cache clean)

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>

14 years ago[PATCH] mark f_ops const in the inode
Arjan van de Ven [Tue, 28 Mar 2006 09:56:41 +0000]
[PATCH] mark f_ops const in the inode

Mark the f_ops members of inodes as const, as well as fix the
ripple-through this causes by places that copy this f_ops and then "do
stuff" with it.

Signed-off-by: Arjan van de Ven <arjan@infradead.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>

14 years ago[PATCH] ia64: const f_ops fix
Andrew Morton [Tue, 28 Mar 2006 09:56:40 +0000]
[PATCH] ia64: const f_ops fix

Tweak the proc setup code so things work OK with const
proc_dir_entry.proc_fops.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] for_each_possible_cpu: documentaion
KAMEZAWA Hiroyuki [Tue, 28 Mar 2006 09:56:39 +0000]
[PATCH] for_each_possible_cpu: documentaion

Replace for_each_cpu with for_each_possible_cpu.

Modifies occurences in documentaion.

for_each_cpu in whatisRCU.txt should be for_each_online_cpu ???
(I'm not sure..)

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] for_each_possible_cpu: i386
KAMEZAWA Hiroyuki [Tue, 28 Mar 2006 09:56:39 +0000]
[PATCH] for_each_possible_cpu: i386

This patch replaces for_each_cpu with for_each_possible_cpu.

under arch/i386.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] for_each_possible_cpu: oprofile.
KAMEZAWA Hiroyuki [Tue, 28 Mar 2006 09:56:38 +0000]
[PATCH] for_each_possible_cpu: oprofile.

This patch replaces for_each_cpu with for_each_possible_cpu.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] for_each_possible_cpu: loopback device.
KAMEZAWA Hiroyuki [Tue, 28 Mar 2006 09:56:37 +0000]
[PATCH] for_each_possible_cpu: loopback device.

This patch replaces for_each_cpu with for_each_possible_cpu.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] for_each_possible_cpu: fixes for generic part
KAMEZAWA Hiroyuki [Tue, 28 Mar 2006 09:56:37 +0000]
[PATCH] for_each_possible_cpu: fixes for generic part

replaces for_each_cpu with for_each_possible_cpu().

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] for_each_possible_cpu: defines for_each_possible_cpu
KAMEZAWA Hiroyuki [Tue, 28 Mar 2006 09:56:36 +0000]
[PATCH] for_each_possible_cpu: defines for_each_possible_cpu

for_each_cpu() is a for-loop over cpu_possible_map.  for_each_online_cpu is
for-loop cpu over cpu_online_map.  .....for_each_cpu() is not sufficiently
explicit and can lead to mistakes.

This patch adds for_each_possible_cpu() in preparation for the removal of
for_each_cpu().

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] Fold select_bits_alloc/free into caller code.
Vadim Lobanov [Tue, 28 Mar 2006 09:56:35 +0000]
[PATCH] Fold select_bits_alloc/free into caller code.

Remove an unnecessary level of indirection in allocating and freeing select
bits, as per the select_bits_alloc() and select_bits_free() functions.
Both select.c and compat.c are updated.

Signed-off-by: Vadim Lobanov <vlobanov@speakeasy.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] use fget_light() in select/poll
Eric Dumazet [Tue, 28 Mar 2006 09:56:34 +0000]
[PATCH] use fget_light() in select/poll

Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] Optimize select/poll by putting small data sets on the stack
Andi Kleen [Tue, 28 Mar 2006 09:56:33 +0000]
[PATCH] Optimize select/poll by putting small data sets on the stack

Optimize select and poll by a using stack space for small fd sets

This brings back an old optimization from Linux 2.0.  Using the stack is
faster than kmalloc.  On a Intel P4 system it speeds up a select of a
single pty fd by about 13% (~4000 cycles -> ~3500)

It also saves memory because a daemon hanging in select or poll will
usually save one or two less pages.  This can add up - e.g.  if you have 10
daemons blocking in poll/select you save 40KB of memory.

I did a patch for this long ago, but it was never applied.  This version is
a reimplementation of the old patch that tries to be less intrusive.  I
only did the minimal changes needed for the stack allocation.

The cut off point before external memory is allocated is currently at
832bytes.  The system calls always allocate this much memory on the stack.

These 832 bytes are divided into 256 bytes frontend data (for the select
bitmaps of the pollfds) and the rest of the space for the wait queues used
by the low level drivers.  There are some extreme cases where this won't
work out for select and it falls back to allocating memory too early -
especially with very sparse large select bitmaps - but the majority of
processes who only have a small number of file descriptors should be ok.
[TBD: 832/256 might not be the best split for select or poll]

I suspect more optimizations might be possible, but they would be more
complicated.  One way would be to cache the select/poll context over
multiple system calls because typically the input values should be similar.
 Problem is when to flush the file descriptors out though.

Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] ide_generic_all_on() warning fix
Andrew Morton [Tue, 28 Mar 2006 09:56:32 +0000]
[PATCH] ide_generic_all_on() warning fix

drivers/ide/pci/generic.c:45: warning: `ide_generic_all_on' defined but not used

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>

14 years ago[PATCH] Small fixes backported to old IDE SiS driver
Alan Cox [Tue, 28 Mar 2006 09:56:31 +0000]
[PATCH] Small fixes backported to old IDE SiS driver

Some quick backport bits from the libata PATA work to fix things found in
the sis driver.  The piix driver needs some fixes too but those are way to
large and need someone working on old IDE with time to do them.

This patch fixes the case where random bits get loaded into SIS timing
registers according to the description of the correct behaviour from
Vojtech Pavlik.  It also adds the SiS5517 ATA16 chipset which is not
currently supported by the driver.  Thanks to Conrad Harriss for loaning me
the machine with the 5517 chipset.

Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] ide: AMD756 no host side cable detection
Rene Herman [Tue, 28 Mar 2006 09:56:30 +0000]
[PATCH] ide: AMD756 no host side cable detection

>From http://marc.theaimsgroup.com/?l=linux-kernel&m=110304128900342&w=2

AMD756 doesn't support host side cable detection. Do disk side only and
don't advice obsolete options.

Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] autofs4: proper prototype for autofs4_dentry_release()
Adrian Bunk [Tue, 28 Mar 2006 09:56:29 +0000]
[PATCH] autofs4: proper prototype for autofs4_dentry_release()

Add a proper prototype for autofs4_dentry_release() to autofs_i.h.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] drivers/block/acsi_slm.c: size_t can't be < 0
Alexey Dobriyan [Tue, 28 Mar 2006 09:56:28 +0000]
[PATCH] drivers/block/acsi_slm.c: size_t can't be < 0

A size_t can't be < 0.

(akpm: and rw_verify_area() already did that check)

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] remove relayfs_fs.h
Andrew Morton [Tue, 28 Mar 2006 09:56:27 +0000]
[PATCH] remove relayfs_fs.h

This is obsolete.

Cc: Tom Zanussi <zanussi@us.ibm.com>
Cc: Jens Axboe <axboe@suse.de>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] Philip Gladstone has moved
Philip Gladstone [Tue, 28 Mar 2006 09:56:27 +0000]
[PATCH] Philip Gladstone has moved

I noticed that my email address is four jobs ago.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] fs/fat/: proper prototypes for two functions
Adrian Bunk [Tue, 28 Mar 2006 09:56:26 +0000]
[PATCH] fs/fat/: proper prototypes for two functions

Add proper prototypes for fat_cache_init() and fat_cache_destroy() in
msdos_fs.h.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] drivers/block/paride/pd.c: fix an off-by-one error
Adrian Bunk [Tue, 28 Mar 2006 09:56:25 +0000]
[PATCH] drivers/block/paride/pd.c: fix an off-by-one error

The Coverity checker found this off-by-one error.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] Change dash2underscore() return value to char
Eric Sesterhenn [Tue, 28 Mar 2006 09:56:24 +0000]
[PATCH] Change dash2underscore() return value to char

Since dash2underscore() just operates and returns chars, I guess its safe
to change the return value to a char.  With my .config, this reduces its
size by 5 bytes.

   text    data     bss     dec     hex filename
   4155     152       0    4307    10d3 params.o.orig
   4150     152       0    4302    10ce params.o

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] mqueue comment typo fix
Serge E. Hallyn [Tue, 28 Mar 2006 09:56:23 +0000]
[PATCH] mqueue comment typo fix

(akpm: I don't do comment typos patches.  This one snuck through by accident)

Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] alpha: make poll flags the same as other architectures
Andrew Morton [Tue, 28 Mar 2006 09:56:22 +0000]
[PATCH] alpha: make poll flags the same as other architectures

Renumber the recently-added POLLREMOVE and POLLRDHUP to line up with the other
architectures.

Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] Add oprofile_add_ext_sample
Brian Rogan [Tue, 28 Mar 2006 09:56:20 +0000]
[PATCH] Add oprofile_add_ext_sample

On ppc64 we look at a profiling register to work out the sample address and
if it was in userspace or kernel.

The backtrace interface oprofile_add_sample does not allow this.  Create
oprofile_add_ext_sample and make oprofile_add_sample use it too.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: Philippe Elie <phil.el@wanadoo.fr>
Cc: John Levon <levon@movementarian.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] symversion warning fix
Andrew Morton [Tue, 28 Mar 2006 09:56:20 +0000]
[PATCH] symversion warning fix

gcc-4.2:

kernel/module.c: In function '__find_symbol':
kernel/module.c:158: warning: the address of '__start___kcrctab', will always evaluate as 'true'
kernel/module.c:165: warning: the address of '__start___kcrctab_gpl', will always evaluate as 'true'
kernel/module.c:182: warning: the address of '__start___kcrctab_gpl_future', will always evaluate as 'true'

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] capi: register_chrdev() fix
Andrew Morton [Tue, 28 Mar 2006 09:56:19 +0000]
[PATCH] capi: register_chrdev() fix

If the user specified `major=0' (odd thing to do), capi.c will use dynamic
allocation.  We need to pick up that major for subsequent unregister_chrdev().

Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] paride-pt: register_chrdev fix
Andrew Morton [Tue, 28 Mar 2006 09:56:18 +0000]
[PATCH] paride-pt: register_chrdev fix

If the user specified `major=0' (odd thing to do), pt.c will use dynamic
allocation.  We need to pick up that major for subsequent unregister_chrdev().

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] paride: register_chrdev fix
Andrew Morton [Tue, 28 Mar 2006 09:56:18 +0000]
[PATCH] paride: register_chrdev fix

If the user specified `major=0' (odd thing to do), pg.c will use dynamic
allocation.  We need to pick up that major for subsequent unregister_chrdev().

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] let BLK_DEV_RAM_COUNT depend on BLK_DEV_RAM
Adrian Bunk [Tue, 28 Mar 2006 09:56:17 +0000]
[PATCH] let BLK_DEV_RAM_COUNT depend on BLK_DEV_RAM

It's purely cosmetic, but with the patch there's no longer a
BLK_DEV_RAM_COUNT setting in the .config if BLK_DEV_RAM=n.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] synclink_gt: remove uneeded async code
Paul Fulghum [Tue, 28 Mar 2006 09:56:16 +0000]
[PATCH] synclink_gt: remove uneeded async code

Remove code in async receive handling that serves no purpose with new tty
receive buffering.  Previously this code tried to free up receive buffer
space, but now does nothing useful while making expensive calls.

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] synclink_gt add gpio feature
Paul Fulghum [Tue, 28 Mar 2006 09:56:15 +0000]
[PATCH] synclink_gt add gpio feature

Add driver support for general purpose I/O feature of the Synclink GT
adapters.

Signed-off-by: Paul Fulghum <paulkf@micrgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] synclink: remove dead code
Paul Fulghum [Tue, 28 Mar 2006 09:56:14 +0000]
[PATCH] synclink: remove dead code

Remove dead code from synclink driver.  This was used previously when the
write method had a from_user flag, which has been removed.

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] Decrapify asm-generic/local.h
Kyle McMartin [Tue, 28 Mar 2006 09:56:11 +0000]
[PATCH] Decrapify asm-generic/local.h

Now that Christoph Lameter's atomic_long_t support is merged in mainline,
might as well convert asm-generic/local.h to use it, so the same code can
be used for both sizes of 32 and 64-bit unsigned longs.

akpm sayeth:

Q:

  Is there any particular reason why these routines weren't simply
  implemented with local_save/restore_flags, if they are only meant to
  guarantee atomicity to the local cpu?  I'm sure on most platforms this
  would be more efficient than using an atomic...

A:

  The whole _point_ of local_t is to avoid local_irq_disable().  It's
  designed to exploit the fact that many CPUs can do incs and decs in a way
  which is atomic wrt local interrupts, but not atomic wrt SMP.

But this patch makes sense, because asm-generic/local.h is just a fallback
implementation for architectures which either cannot perform these
local-irq-atomic operations, or its maintainers haven't yet got around to
implementing them.

We need more work done on local_t in the 2.6.17 timeframe - they're defined as
unsigned long, but some architectures implement them as signed long.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] RTC: Remove some duplicate BCD definitions
Matt Mackall [Tue, 28 Mar 2006 09:56:10 +0000]
[PATCH] RTC: Remove some duplicate BCD definitions

Remove some duplicate BCD definitions

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] RTC: Fix up some RTC whitespace and style
Matt Mackall [Tue, 28 Mar 2006 09:56:09 +0000]
[PATCH] RTC: Fix up some RTC whitespace and style

Fix up some RTC whitespace and style

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] RTC: Remove RTC UIP synchronization on Alpha
Matt Mackall [Tue, 28 Mar 2006 09:56:09 +0000]
[PATCH] RTC: Remove RTC UIP synchronization on Alpha

The sync may still be needed for CPU clock calibration but we don't sync in
the regular case.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] RTC: Remove RTC UIP synchronization on SH MPC1211
Matt Mackall [Tue, 28 Mar 2006 09:56:08 +0000]
[PATCH] RTC: Remove RTC UIP synchronization on SH MPC1211

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] RTC: Remove RTC UIP synchronization on SH03
Matt Mackall [Tue, 28 Mar 2006 09:56:07 +0000]
[PATCH] RTC: Remove RTC UIP synchronization on SH03

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] RTC: Remove RTC UIP synchronization on MIPS-based DEC
Matt Mackall [Tue, 28 Mar 2006 09:56:06 +0000]
[PATCH] RTC: Remove RTC UIP synchronization on MIPS-based DEC

Move real_year inside the read loop and move the spinlock up as well

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] RTC: Remove RTC UIP synchronization on MIPS MC146818
Matt Mackall [Tue, 28 Mar 2006 09:56:05 +0000]
[PATCH] RTC: Remove RTC UIP synchronization on MIPS MC146818

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] RTC: Remove RTC UIP synchronization on ARM
Matt Mackall [Tue, 28 Mar 2006 09:56:05 +0000]
[PATCH] RTC: Remove RTC UIP synchronization on ARM

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] RTC: Remove RTC UIP synchronization on PPC Maple
Matt Mackall [Tue, 28 Mar 2006 09:56:04 +0000]
[PATCH] RTC: Remove RTC UIP synchronization on PPC Maple

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] RTC: Remove RTC UIP synchronization on CHRP (arch/powerpc)
Matt Mackall [Tue, 28 Mar 2006 09:56:03 +0000]
[PATCH] RTC: Remove RTC UIP synchronization on CHRP (arch/powerpc)

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] RTC: Remove RTC UIP synchronization on PPC CHRP (arch/ppc)
Matt Mackall [Tue, 28 Mar 2006 09:56:02 +0000]
[PATCH] RTC: Remove RTC UIP synchronization on PPC CHRP (arch/ppc)

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] RTC: Remove RTC UIP synchronization on Sparc64
Matt Mackall [Tue, 28 Mar 2006 09:56:01 +0000]
[PATCH] RTC: Remove RTC UIP synchronization on Sparc64

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] RTC: Remove RTC UIP synchronization on x86_64
Matt Mackall [Tue, 28 Mar 2006 09:56:01 +0000]
[PATCH] RTC: Remove RTC UIP synchronization on x86_64

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] RTC: Remove RTC UIP synchronization on x86
Matt Mackall [Tue, 28 Mar 2006 09:55:58 +0000]
[PATCH] RTC: Remove RTC UIP synchronization on x86

Reading the CMOS clock on x86 and some other arches currently takes up to one
second because it synchronizes with the CMOS second tick-over.  This delay
shows up at boot time as well a resume time.

This is the currently the most substantial boot time delay for machines that
are working towards instant-on capability.  Also, a quick back of the envelope
calculation (.5sec * 2M users * 1 boot a day * 10 years) suggests it has cost
Linux users in the neighborhood of a million man-hours.

An earlier thread on this topic is here:

http://groups.google.com/group/linux.kernel/browse_frm/thread/8a24255215ff6151/2aa97e66a977653d?hl=en&lr=&ie=UTF-8&rnum=1&prev=/groups%3Fhl%3Den%26lr%3D%26ie%3DUTF-8%26selm%3D1To2R-2S7-11%40gated-at.bofh.it#2aa97e66a977653d

..from which the consensus seems to be that it's no longer desirable.

In my view, there are basically four cases to consider:

1) networked, need precise walltime: use NTP
2) networked, don't need precise walltime: use NTP anyway
3) not networked, don't need sub-second precision walltime: don't care
4) not networked, need sub-second precision walltime:
   get a network or a radio time source because RTC isn't good enough anyway

So this patch series simply removes the synchronization in favor of a simple
seqlock-like approach using the seconds value.

Note that for purposes of timer accuracy on wakeup, this patch will cause us
to fire timers up to one second late.  But as the current timer resume code
will already sync once (or more!), it's no worse for short timers.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Andi Kleen <ak@muc.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[BLOCK] cfq-iosched: seek and async performance fixes
Jens Axboe [Tue, 28 Mar 2006 11:03:44 +0000]
[BLOCK] cfq-iosched: seek and async performance fixes

Detect whether a given process is seeky and if so disable (mostly) the
idle window if it is. We still allow just a little idle time, just enough
to allow that process to submit a new request. That is needed to maintain
fairness across priority groups.

In some cases, we could setup several async queues. This is not optimal
from a performance POV, since we want all async io in one queue to perform
good sorting on it. It also impacted sync queues, as async io got too much
slice time.

Signed-off-by: Jens Axboe <axboe@suse.de>

14 years ago[ARM] Move ice-dcc code into misc.c
Russell King [Tue, 28 Mar 2006 09:34:05 +0000]
[ARM] Move ice-dcc code into misc.c

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

14 years ago[ARM] Fix decompressor serial IO to give CRLF not LFCR
Russell King [Tue, 28 Mar 2006 09:24:33 +0000]
[ARM] Fix decompressor serial IO to give CRLF not LFCR

As per the corresponding change to the serial drivers, arrange
for ARM decompressors to give CRLF.  Move the common putstr code
into misc.c such that machines only need to supply "putc" and
"flush" functions.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

14 years ago[SPARC64]: Implement futex_atomic_cmpxchg_inatomic().
David S. Miller [Tue, 28 Mar 2006 09:00:08 +0000]
[SPARC64]: Implement futex_atomic_cmpxchg_inatomic().

Signed-off-by: David S. Miller <davem@davemloft.net>

14 years ago[PATCH] ll_rw_blk: fix 80-col offender in put_io_context()
Jens Axboe [Tue, 28 Mar 2006 07:00:28 +0000]
[PATCH] ll_rw_blk: fix 80-col offender in put_io_context()

This makes akpm more happy.

Signed-off-by: Jens Axboe <axboe@suse.de>

14 years ago[PATCH] cfq-iosched: small cfq_choose_req() optimization
Andreas Mohr [Tue, 28 Mar 2006 06:59:49 +0000]
[PATCH] cfq-iosched: small cfq_choose_req() optimization

this is a small optimization to cfq_choose_req() in the CFQ I/O scheduler
(this function is a semi-often invoked candidate in an oprofile log):
by using a bit mask variable, we can use a simple switch() to check
the various cases instead of having to query two variables for each check.
Benefit: 251 vs. 285 bytes footprint of cfq_choose_req().
Also, common case 0 (no request wrapping) is now checked first in code.

Signed-off-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Jens Axboe <axboe@suse.de>

14 years ago[PATCH] [BLOCK] cfq-iosched: change cfq io context linking from list to tree
Jens Axboe [Tue, 28 Mar 2006 06:59:01 +0000]
[PATCH] [BLOCK] cfq-iosched: change cfq io context linking from list to tree

On setups with many disks, we spend a considerable amount of time
looking up the process-disk mapping on each queue of io. Testing with
a NULL based block driver, this costs 40-50% reduction in throughput
for 1000 disks.

Signed-off-by: Jens Axboe <axboe@suse.de>

14 years ago[CPUFREQ] powernow: remove private for_each_cpu_mask()
Andrew Morton [Sat, 25 Mar 2006 09:51:23 +0000]
[CPUFREQ] powernow: remove private for_each_cpu_mask()

It is unneeded and wrong.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dave Jones <davej@redhat.com>

14 years ago[CPUFREQ] hotplug cpu fix for powernow-k8
shin, jacob [Mon, 27 Mar 2006 15:57:20 +0000]
[CPUFREQ] hotplug cpu fix for powernow-k8

Andi's previous fix to initialise powernow_data on all siblings
will not work properly with CPU Hotplug.

Signed-off-by: Jacob Shin <jacob.shin@amd.com>
Signed-off-by: Dave Jones <davej@redhat.com>

14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/cpufreq-2.6
Dave Jones [Mon, 27 Mar 2006 19:56:39 +0000]
Merge git://git./linux/kernel/git/brodo/cpufreq-2.6

14 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Mon, 27 Mar 2006 16:47:54 +0000]
Merge /pub/scm/linux/kernel/git/davem/sparc-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Fix off-by-1 error in TSB grow check.

14 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Mon, 27 Mar 2006 16:47:29 +0000]
Merge /pub/scm/linux/kernel/git/davem/net-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [NET]: drop duplicate assignment in request_sock
  [IPSEC]: Fix tunnel error handling in ipcomp6

14 years agoMerge branch 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block
Linus Torvalds [Mon, 27 Mar 2006 16:46:49 +0000]
Merge branch 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block

* 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block:
  [PATCH] Don't make debugfs depend on DEBUG_KERNEL
  [PATCH] Fix blktrace compile with sysfs not defined
  [PATCH] unused label in drivers/block/cciss.
  [BLOCK] increase size of disk stat counters
  [PATCH] blk_execute_rq_nowait-speedup
  [PATCH] ide-cd: quiet down GPCMD_READ_CDVD_CAPACITY failure
  [BLOCK] ll_rw_blk: kmalloc -> kzalloc conversion
  [PATCH] kzalloc() conversion in drivers/block
  [PATCH] update max_sectors documentation

14 years ago[PATCH] md: Convert reconfig_sem to reconfig_mutex
NeilBrown [Mon, 27 Mar 2006 09:18:20 +0000]
[PATCH] md: Convert reconfig_sem to reconfig_mutex

... being careful that mutex_trylock is inverted wrt down_trylock

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] sem2mutex: drivers/md
Arjan van de Ven [Mon, 27 Mar 2006 09:18:20 +0000]
[PATCH] sem2mutex: drivers/md

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: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] md: Restore 'remaining' count when retrying an write operation
NeilBrown [Mon, 27 Mar 2006 09:18:19 +0000]
[PATCH] md: Restore 'remaining' count when retrying an write operation

When retrying a write due to barrier failure, we don't reset 'remaining', so
it goes negative and never hits 0 again.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] md: Fix md grow/size code to correctly find the maximum available space
NeilBrown [Mon, 27 Mar 2006 09:18:18 +0000]
[PATCH] md: Fix md grow/size code to correctly find the maximum available space

An md array can be asked to change the amount of each device that it is using,
and in particular can be asked to use the maximum available space.  This
currently only works if the first device is not larger than the rest.  As
'size' gets changed and so 'fit' becomes wrong.  So check if a 'fit' is
required early and don't corrupt it.

Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] md: Remove bi_end_io call out from under a spinlock
NeilBrown [Mon, 27 Mar 2006 09:18:17 +0000]
[PATCH] md: Remove bi_end_io call out from under a spinlock

raid5 overloads bi_phys_segments to count the number of blocks that the
request was broken in to so that it knows when the bio is completely handled.

Accessing this must always be done under a spinlock.  In one case we also call
bi_end_io under that spinlock, which probably isn't ideal as bi_end_io could
be expensive (even though it isn't allowed to sleep).

So we reducde the range of the spinlock to just accessing bi_phys_segments.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

14 years ago[PATCH] md: Remove some stray semi-colons after functions called in macro..
NeilBrown [Mon, 27 Mar 2006 09:18:16 +0000]
[PATCH] md: Remove some stray semi-colons after functions called in macro..

wait_event_lock_irq puts a ';' after its usage of the 4th arg, so we don't
need to.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>