Peter Zijlstra [Mon, 9 Mar 2009 12:56:21 +0000 (13:56 +0100)]
sched: optimize ttwu vs group scheduling
Impact: micro-optimization
We can avoid the sched domain walk on try_to_wake_up() when we know
there are no groups.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <
1236603381.8389.455.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Tue, 10 Mar 2009 15:34:43 +0000 (16:34 +0100)]
Merge branches 'sched/cleanups' and 'linus' into sched/core
Linus Torvalds [Sun, 8 Mar 2009 17:37:57 +0000 (10:37 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
mmc: fix data timeout for SEND_EXT_CSD
Linus Torvalds [Sun, 8 Mar 2009 17:30:18 +0000 (10:30 -0700)]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
rcu: increment quiescent state counter in ksoftirqd()
Linus Torvalds [Sun, 8 Mar 2009 17:27:13 +0000 (10:27 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, pebs: correct qualifier passed to ds_write_config() from ds_request_pebs()
x86, bts: remove bad warning
x86: add Dell XPS710 reboot quirk
x86, math-emu: fix init_fpu for task != current
x86: EFI: Back efi_ioremap with init_memory_mapping instead of FIX_MAP
x86: fix DMI on EFI
Linus Torvalds [Sun, 8 Mar 2009 17:25:13 +0000 (10:25 -0700)]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
[WATCHDOG] orion5x_wdt.c: 'ORION5X_TCLK' undeclared
[WATCHDOG] gef_wdt.c: fsl_get_sys_freq() failure not noticed
[WATCHDOG] ks8695_wdt.c: 'CLOCK_TICK_RATE' undeclared
[WATCHDOG] rc32434_wdt: fix sections
[WATCHDOG] rc32434_wdt: fix watchdog driver
Linus Torvalds [Sun, 8 Mar 2009 17:24:57 +0000 (10:24 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix ext4_free_inode() vs. ext4_claim_inode() race
Linus Torvalds [Sun, 8 Mar 2009 17:24:39 +0000 (10:24 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (28 commits)
Blackfin arch: SPI_MMC is now mainlined MMC_SPI
Blackfin arch: disable legacy /proc/scsi/ support by default
Blackfin arch: remove duplicated ANOMALY_05000448 ifdef check
Blackfin arch: add stubs for anomalies 447 and 448
Blackfin arch: cleanup bfin_sport.h header and export it to userspace
Blackfin arch: fix bug - gdb signull case make trunk kernel panic frequently
Blackfin arch: remove spurious dash when dcache is off
Blackfin arch: mark init_pda as __init as only __init funcs all it
Blackfin arch: fix bug - On bf548-ezkit, ethernet fails to work after wakeup from "mem"
Blackfin arch: Random read/write errors are a bad thing
Blackfin arch: update default kernel config, select KSZ8893M driver for BF518
Blackfin arch: Fix bug - KGDB single step into the middle of a 4 bytes instruction on bf561 after soft bp is hit
Blackfin arch: Fix bug - make ksz8893m driver available when bfin_mac is enabled
Blackfin arch: make sure people do not set the kernel load address too high
Blackfin arch: fix bug - The SPORT_HYS bit is not set for BF561 0.5
Blackfin arch: update anomaly sheets to match latest public info
Blackfin arch: Fix BUG - kernel fails to build in pm.c when allow wakeup fromi standby by GPIO
Blackfin arch: PM_BFIN_WAKE_GP: update help
Blackfin arch: fix bug - kgdb fails to continue after setting breakpoint on bf561-ezkit kernel with smp patch
Blackfin arch: Enable Write Back Cache on all Blackfin Boards
...
Linus Torvalds [Sun, 8 Mar 2009 17:23:05 +0000 (10:23 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/djbw/async_tx
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
dmatest: fix use after free in dmatest_exit
ipu_idmac: fix spinlock type
iop-adma, mv_xor: fix mem leak on self-test setup failure
fsldma: fix off by one in dma_halt
I/OAT: fail self-test if callback test reaches timeout
I/OAT: update driver version and copyright dates
I/OAT: list usage cleanup
I/OAT: set tcp_dma_copybreak to 256k for I/OAT ver.3
I/OAT: cancel watchdog before dma remove
I/OAT: fail initialization on zero channels detection
I/OAT: do not set DCACTRL_CMPL_WRITE_ENABLE for I/OAT ver.3
I/OAT: add verification for proper APICID_TAG_MAP setting by BIOS
dmaengine: update kerneldoc
Linus Torvalds [Sun, 8 Mar 2009 17:22:22 +0000 (10:22 -0700)]
Merge git://git./linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
ata: add CFA specific identify data words
remove stale comment from <linux/hdreg.h>
AT91: initialize Compact Flash on AT91SAM9263 cpu
ide: add at91_ide driver
ide: allow to wrap interrupt handler
ide-iops: fix odd-length ATAPI PIO transfers
ide: NULL noise: drivers/ide/ide-*.c
ide: expiry() returns int, negative expiry() return values won't be noticed
Linus Torvalds [Sun, 8 Mar 2009 17:22:01 +0000 (10:22 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: Don't trust current capacity values in identify words 57-58
libata: make sure port is thawed when skipping resets
sata_nv: fix module parameter description
ahci: Add the Device IDs for MCP89 and remove IDs of MCP7B to/from ahci.c
libata: don't use on-stack sense buffer
libata: align ap->sector_buf
libata: fix dma_unmap_sg misuse
libata: change drive ready wait after hard reset to 5s
Linus Torvalds [Sun, 8 Mar 2009 17:21:31 +0000 (10:21 -0700)]
Merge git://git./linux/kernel/git/pkl/squashfs-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus:
Squashfs: frag_size should be signed, as it can hold an error result
Squashfs: fix documentation typo, Cramfs filesystem limit is 256 MiB
Squashfs: Fix oops when reading fsfuzzer corrupted filesystems
Linus Torvalds [Sun, 8 Mar 2009 17:21:10 +0000 (10:21 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
smack: fixes for unlabeled host support
Linus Torvalds [Sun, 8 Mar 2009 17:14:19 +0000 (10:14 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: serio - fix protocol number for TouchIT213
Linus Torvalds [Sun, 8 Mar 2009 17:13:28 +0000 (10:13 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] fix PCI DMA flag propagation on SN (Altix) with PICs
Linus Torvalds [Sun, 8 Mar 2009 17:08:57 +0000 (10:08 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
block: fix missing bio back/front segment size setting in blk_recount_segments()
loop: don't increment p->offset with (size_t) -EINVAL
cciss: remove 30 second initial timeout on controller reset
Fix kernel NULL pointer dereference in xen-blkfront
Linus Torvalds [Sun, 8 Mar 2009 17:03:31 +0000 (10:03 -0700)]
Merge branch 'fix/hda' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Fix headphone-detect regression with multiple HP jacks
ALSA: hda - Fix typos in slave controls in patch_sigmatel.c
Ralf Baechle [Thu, 5 Mar 2009 10:45:48 +0000 (11:45 +0100)]
MIPS: compat: Implement is_compat_task.
This is a build fix required after "x86-64: seccomp: fix 32/64 syscall
hole" (commit
5b1017404aea6d2e552e991b3fd814d839e9cd67). MIPS doesn't
have the issue that was fixed for x86-64 by that patch.
This also doesn't solve the N32 issue which is that N32 seccomp processes
will be treated as non-compat processes thus only have access to N64
syscalls.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adrian Hunter [Tue, 10 Feb 2009 14:32:33 +0000 (16:32 +0200)]
mmc: fix data timeout for SEND_EXT_CSD
Commit
0d3e0460f307e84904968aad6cff97bd688583d8
"MMC: CSD and CID timeout values" inadvertently broke
the timeout for the MMC command SEND_EXT_CSD.
This patch puts it back again.
Depending on the characteristics of the controller,
this bug may prevent the use of MMC cards.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Dmitry Torokhov [Sat, 7 Mar 2009 21:39:22 +0000 (13:39 -0800)]
Input: serio - fix protocol number for TouchIT213
Protocol 0x37 has been reserved for iNexio devices and Sahara
was supposed to get 0x38.
Reported-by: Claudio Nieder <private@claudio.ch>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Jeremy Higdon [Wed, 4 Mar 2009 20:09:46 +0000 (12:09 -0800)]
[IA64] fix PCI DMA flag propagation on SN (Altix) with PICs
We recently discovered a problem with passing of DMA attributes on SN
systems with the older PIC chips.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Jeremy Higdon <jeremy@sgi.com>
Cc: <habeck@sgi.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Markus Metzger [Thu, 5 Mar 2009 07:57:21 +0000 (08:57 +0100)]
x86, pebs: correct qualifier passed to ds_write_config() from ds_request_pebs()
ds_write_config() can write the BTS as well as the PEBS part of
the DS config. ds_request_pebs() passes the wrong qualifier, which
results in the wrong configuration to be written.
Reported-by: Stephane Eranian <eranian@googlemail.com>
Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
LKML-Reference: <
20090305085721.A22550@sedona.ch.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Markus Metzger [Thu, 5 Mar 2009 07:49:54 +0000 (08:49 +0100)]
x86, bts: remove bad warning
In case a ptraced task is reaped (while the tracer is still attached),
ds_exit_thread() is called before ptrace_exit(). The latter will
release the bts_tracer and remove the thread's ds_ctx.
The former will WARN() if the context is not NULL.
Oleg Nesterov submitted patches that move ptrace_exit() before
exit_thread() and thus reverse the order of the above calls.
Remove the bad warning. I will add it again when Oleg's changes are in.
Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
LKML-Reference: <
20090305084954.A22000@sedona.ch.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Lai Jiangshan [Fri, 6 Mar 2009 11:40:20 +0000 (19:40 +0800)]
sched: TIF_NEED_RESCHED -> need_reshed() cleanup
Impact: cleanup
Use test_tsk_need_resched(), set_tsk_need_resched(), need_resched()
instead of using TIF_NEED_RESCHED.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <
49B10BA4.
9070209@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Fri, 6 Mar 2009 10:47:52 +0000 (11:47 +0100)]
Merge branch 'sched/core' into sched/cleanups
Takashi Iwai [Fri, 6 Mar 2009 08:43:58 +0000 (09:43 +0100)]
ALSA: hda - Fix headphone-detect regression with multiple HP jacks
The recent changes over the DAC detection mechanism in patch_sigmatel.c
breaks the HP detection on the machines with multiple HP jacks.
It's basically because of the workaround to support the multi-channel
output. Since the HP detection is more important feature, disable
the HP-swap workaroud temporarily.
Reference: Novell bnc#482052
https://bugzilla.novell.com/show_bug.cgi?id=482052
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Fri, 6 Mar 2009 08:42:07 +0000 (09:42 +0100)]
ALSA: hda - Fix typos in slave controls in patch_sigmatel.c
"Headphone Playback ..." appears twice in slave_vols[] and slave_sws[].
They should be "Headphone Playback2 ..."
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Jens Axboe [Fri, 6 Mar 2009 07:55:24 +0000 (08:55 +0100)]
block: fix missing bio back/front segment size setting in blk_recount_segments()
Commit
1e42807918d17e8c93bf14fbb74be84b141334c1 introduced a bug where we
don't get front/back segment sizes in the bio in blk_recount_segments().
Fix this by tracking the back bio as well as the front bio in
__blk_recalc_rq_segments(), this also cleans up the interface by getting
rid of the segment size pointer passing.
Tested-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Wim Van Sebroeck [Wed, 25 Feb 2009 12:33:01 +0000 (13:33 +0100)]
[WATCHDOG] orion5x_wdt.c: 'ORION5X_TCLK' undeclared
orion5x_wdt no longer compiled after the changes in commit
ebe35aff883496c07248df82c8576c3b6e84bbbe ("Orion: prepare for
runtime-determined timer tick rate").
The tick rate define (ORION5X_TCLK) was removed in favor of a runtime
detection. The quick fix is to add the define in the watchdog driver.
The fix is not correct for all supported orion5x platforms, but since
the supported platforms right now are 133 Mhz and 166 Mhz, it won't
be _that_ far off. ;-) A fix that uses the runtime-determined timer
tick rate will be applied later.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: Kristof Provost <kristof@sigsegv.be>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Cc: Nicolas Pitre <nico@cam.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Michael Hennerich [Thu, 5 Mar 2009 16:27:57 +0000 (00:27 +0800)]
Blackfin arch: SPI_MMC is now mainlined MMC_SPI
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Mike Frysinger [Thu, 5 Mar 2009 16:27:17 +0000 (00:27 +0800)]
Blackfin arch: disable legacy /proc/scsi/ support by default
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Mike Frysinger [Thu, 5 Mar 2009 16:24:01 +0000 (00:24 +0800)]
Blackfin arch: remove duplicated ANOMALY_05000448 ifdef check
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Sergei Shtylyov [Thu, 5 Mar 2009 16:20:55 +0000 (17:20 +0100)]
ata: add CFA specific identify data words
Declare CFA specific identify data words 162 and 163 for future use.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
[bart: update patch summary/description]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Mike Frysinger [Thu, 5 Mar 2009 16:20:49 +0000 (00:20 +0800)]
Blackfin arch: add stubs for anomalies 447 and 448
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Bartlomiej Zolnierkiewicz [Thu, 5 Mar 2009 15:10:59 +0000 (16:10 +0100)]
remove stale comment from <linux/hdreg.h>
HDIO_GET_IDENTITY returns 256 words currently.
Noticed by Norman Diamond.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Stanislaw Gruszka [Thu, 5 Mar 2009 15:10:58 +0000 (16:10 +0100)]
AT91: initialize Compact Flash on AT91SAM9263 cpu
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Cc: Andrew Victor <avictor.za@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Stanislaw Gruszka [Thu, 5 Mar 2009 15:10:58 +0000 (16:10 +0100)]
ide: add at91_ide driver
This is IDE host driver for AT91 (SAM9, CAP9, AT572D940HF) Static Memory
Controller with Compact Flash True IDE Mode logic.
Driver have to switch 8/16 bit bus width when accessing Task Tile or Data
Register. Moreover some extra things need to be done when setting PIO mode.
Only PIO mode is used, hardware have no DMA support. If interrupt line is
connected through GPIO extra quirk is needed to cope with fake interrupts.
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Cc: Andrew Victor <avictor.za@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Stanislaw Gruszka [Thu, 5 Mar 2009 15:10:57 +0000 (16:10 +0100)]
ide: allow to wrap interrupt handler
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Cc: Andrew Victor <linux@maxim.org.za>
[bart: minor checkpatch.pl / CodingStyle fixups]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Sergei Shtylyov [Thu, 5 Mar 2009 15:10:56 +0000 (16:10 +0100)]
ide-iops: fix odd-length ATAPI PIO transfers
Commit
9567b349f7e7dd7e2483db99ee8e4a6fe0caca38 (ide: merge ->atapi_*put_bytes
and ->ata_*put_data methods) introduced a regression WRT the odd-length ATAPI
PIO transfers -- the final word didn't get written (causing command timeouts).
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Hannes Eder [Thu, 5 Mar 2009 15:10:56 +0000 (16:10 +0100)]
ide: NULL noise: drivers/ide/ide-*.c
Fix this sparse warnings:
drivers/ide/ide-disk_proc.c:130:11: warning: Using plain integer as NULL pointer
drivers/ide/ide-floppy_proc.c:32:11: warning: Using plain integer as NULL pointer
drivers/ide/ide-proc.c:234:11: warning: Using plain integer as NULL pointer
drivers/ide/ide-tape.c:2141:11: warning: Using plain integer as NULL pointer
Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Cc: trivial@kernel.org
Cc: kernel-janitors@vger.kernel.org
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Roel Kluin [Thu, 5 Mar 2009 15:10:55 +0000 (16:10 +0100)]
ide: expiry() returns int, negative expiry() return values won't be noticed
bart:
It seems like the bug could cause insanely long timeouts for:
- ATA_DMA_ERR error in dma_timer_expiry()
- commands without ->expiry in tc86c001_timer_expiry()
(TC86C001 IDE controller only)
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
[bart: port it to the current tree]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Roel Kluin [Tue, 3 Mar 2009 14:10:05 +0000 (15:10 +0100)]
[WATCHDOG] gef_wdt.c: fsl_get_sys_freq() failure not noticed
fsl_get_sys_freq() may return -1 when 'soc' isn't found, but in
gef_wdt_probe() 'freq' is unsigned, so the test doesn't catch that.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Alexey Dobriyan [Thu, 12 Feb 2009 10:42:41 +0000 (13:42 +0300)]
[WATCHDOG] ks8695_wdt.c: 'CLOCK_TICK_RATE' undeclared
On arm-acs5k_tiny:
drivers/watchdog/ks8695_wdt.c:68: error: 'CLOCK_TICK_RATE' undeclared
(first use in this function)
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@kernel.org>
Frederic Weisbecker [Thu, 5 Mar 2009 00:27:02 +0000 (01:27 +0100)]
sched: don't rebalance if attached on NULL domain
Impact: fix function graph trace hang / drop pointless softirq on UP
While debugging a function graph trace hang on an old PII, I saw
that it consumed most of its time on the timer interrupt. And
the domain rebalancing softirq was the most concerned.
The timer interrupt calls trigger_load_balance() which will
decide if it is worth to schedule a rebalancing softirq.
In case of builtin UP kernel, no problem arises because there is
no domain question.
In case of builtin SMP kernel running on an SMP box, still no
problem, the softirq will be raised each time we reach the
next_balance time.
In case of builtin SMP kernel running on a UP box (most distros
provide default SMP kernels, whatever the box you have), then
the CPU is attached to the NULL sched domain. So a kind of
unexpected behaviour happen:
trigger_load_balance() -> raises the rebalancing softirq later
on softirq: run_rebalance_domains() -> rebalance_domains() where
the for_each_domain(cpu, sd) is not taken because of the NULL
domain we are attached at. Which means rq->next_balance is never
updated. So on the next timer tick, we will enter
trigger_load_balance() which will always reschedule() the
rebalacing softirq:
if (time_after_eq(jiffies, rq->next_balance))
raise_softirq(SCHED_SOFTIRQ);
So for each tick, we process this pointless softirq.
This patch fixes it by checking if we are attached to the null
domain before raising the softirq, another possible fix would be
to set the maximal possible JIFFIES value to rq->next_balance if
we are attached to the NULL domain.
v2: build fix on UP
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <
49af242d.
1c07d00a.32d5.
ffffc019@mx.google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Robert Hancock [Tue, 17 Feb 2009 02:15:08 +0000 (20:15 -0600)]
libata: Don't trust current capacity values in identify words 57-58
Hanno Böck reported a problem where an old Conner CP30254 240MB hard drive
was reported as 1.1TB in capacity by libata:
http://lkml.org/lkml/2009/2/13/134
This was caused by libata trusting the drive's reported current capacity in
sectors in identify words 57 and 58 if the drive does not support LBA and the
current CHS translation values appear valid. Unfortunately it seems older
ATA specs were vague about what this field should contain and a number of drives
used values with wrong byte order or that were totally bogus. There's no
unique information that it conveys and so we can just calculate the number
of sectors from the reported current CHS values.
While we're at it, clean up this function to use named constants for the
identify word values.
Signed-off-by: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Wed, 4 Mar 2009 06:59:30 +0000 (15:59 +0900)]
libata: make sure port is thawed when skipping resets
When SCR access is available and the link is offline, softreset is
skipped as it only wastes time and some controllers don't respond very
well. However, the skip path forgot to thaw the port, which not only
blocks further event notification from the port but also causes
repeated EH invocations on the same event on drivers which rely on
->thaw() to clear events if the IRQ is shared with another device or
port.
This problem has always been there but is uncovered by recent sata_nv
nf2/3 change which dropped hardreset support while maintaining SCR
access. nf2/3 doesn't clear hotplug event mask from the interrupt
handler but relies on ->thaw() to clear them. When the hardreset was
there, the reset action was never skipped and the port was always
thawed but, with the hardreset gone, ->prereset() determines that
there's no need for softreset and both ->softreset() and ->thaw() are
skipped. This leads to stuck hotplug event in the IRQ status register
triggering hotplug event whenever IRQ is delieverd on the same IRQ.
As the controller shares the same IRQ for both ports, this happens on
every IO if one port is occpupied and the other isn't.
This patch fixes the problem by making sure that the port is thawed on
reset-skip path.
bko#11615 reports this problem.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Robert Hancock <hancockrwd@gmail.com>
Reported-by: Dan Andresan <danyer@gmail.com>
Reported-by: Arne Woerner <arne_woerner@yahoo.com>
Reported-by: Stefan Lippers-Hollmann <s.L-H@gmx.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Brandon Ehle [Sun, 1 Mar 2009 08:02:49 +0000 (00:02 -0800)]
sata_nv: fix module parameter description
Update MODULE_PARM_DESC for ADMA to reflect the fact that the
option is disabled by default.
Signed-off-by: Brandon Ehle <azverkan@yahoo.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
peerchen [Fri, 27 Feb 2009 08:58:41 +0000 (16:58 +0800)]
ahci: Add the Device IDs for MCP89 and remove IDs of MCP7B to/from ahci.c
Added the Device IDs for MCP89 AHCI controller.
Removed the IDs of MCP7B because this chipset had been cancelled.
Signed-off-by: Peer Chen <peerchen@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Mon, 2 Mar 2009 09:55:16 +0000 (18:55 +0900)]
libata: don't use on-stack sense buffer
sense_buffer is used as DMA target and shouldn't be allocated on
stack. Use ap->sector_buf instead. This problem is spotted by Chuck
Ebbert.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Mon, 2 Mar 2009 09:53:26 +0000 (18:53 +0900)]
libata: align ap->sector_buf
ap->sector_buf is used as DMA target and should at least be aligned on
cacheline. This caused problems on some embedded machines.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
FUJITA Tomonori [Fri, 27 Feb 2009 08:35:43 +0000 (17:35 +0900)]
libata: fix dma_unmap_sg misuse
libata passes the returned value of dma_map_sg() to
dma_unmap_sg(),which is the misuse of dma_unmap_sg().
DMA-mapping.txt says:
To unmap a scatterlist, just call:
pci_unmap_sg(pdev, sglist, nents, direction);
Again, make sure DMA activity has already finished.
PLEASE NOTE: The 'nents' argument to the pci_unmap_sg call must be
the _same_ one you passed into the pci_map_sg call,
it should _NOT_ be the 'count' value _returned_ from the
pci_map_sg call.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Stuart Hayes [Wed, 4 Mar 2009 19:59:46 +0000 (11:59 -0800)]
libata: change drive ready wait after hard reset to 5s
This fixes problems during resume with drives that take longer than 1s to
be ready. The ATA-6 spec appears to allow 5 seconds for a drive to be
ready.
On one affected system, this patch changes "PM: resume devices took..."
message from 17 seconds to 4 seconds, and gets rid of a lot of ugly
timeout/error messages.
Without this patch, the libata code moves on after 1s, tries to send a
soft reset (which the drive doesn't see because it isn't ready) which also
times out, then an IDENTIFY command is sent to the drive which times out,
and finally the error handler will try to send another hard reset which
will finally get things working.
Signed-off-by: Stuart Hayes <stuart_hayes@dell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Alon Bar-Lev [Thu, 5 Mar 2009 11:42:43 +0000 (19:42 +0800)]
Blackfin arch: cleanup bfin_sport.h header and export it to userspace
Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Roel Kluin [Thu, 5 Mar 2009 07:03:53 +0000 (08:03 +0100)]
loop: don't increment p->offset with (size_t) -EINVAL
Upon a 'transfer error block' size is set to -EINVAL, but this becomes positive
since size is unsigned: p->offset still gets incremented.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Jens Axboe [Fri, 27 Feb 2009 07:10:26 +0000 (08:10 +0100)]
cciss: remove 30 second initial timeout on controller reset
Commit
5e4c91c84b194b26cf592779e451f4b5be777cba forgot to remove the
initial sleep, get rid of it.
Thanks to Randy Dunlap <randy.dunlap@oracle.com> for spotting this error.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Kris Shannon [Mon, 2 Mar 2009 08:47:37 +0000 (19:47 +1100)]
Fix kernel NULL pointer dereference in xen-blkfront
When booting Xen Dom0 on a pre-release 3.2.1 hypervisor the system Oopses on a
"Unable to handle kernel NULL pointer dereference" in xenwatch.
From the backtrace it looks like backend_changed is calling bdget_disk
with a NULL pointer. Checking for NULL and returning ENODEV instead
allows the kernel to boot.
Ingo Molnar [Thu, 5 Mar 2009 10:59:10 +0000 (11:59 +0100)]
Merge commit 'v2.6.29-rc7' into sched/core
Jie Zhang [Thu, 5 Mar 2009 10:50:26 +0000 (18:50 +0800)]
Blackfin arch: fix bug - gdb signull case make trunk kernel panic frequently
Use copy_to_user_page and copy_from_user_page instead of
memcpy. copy_to_user_page does cache flush when necessary.
Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Mike Frysinger [Thu, 5 Mar 2009 10:47:20 +0000 (18:47 +0800)]
Blackfin arch: remove spurious dash when dcache is off
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Mike Frysinger [Thu, 5 Mar 2009 10:45:07 +0000 (18:45 +0800)]
Blackfin arch: mark init_pda as __init as only __init funcs all it
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Michael Hennerich [Thu, 5 Mar 2009 10:41:24 +0000 (18:41 +0800)]
Blackfin arch: fix bug - On bf548-ezkit, ethernet fails to work after wakeup from "mem"
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Robin Getz [Thu, 5 Mar 2009 10:18:49 +0000 (18:18 +0800)]
Blackfin arch: Random read/write errors are a bad thing
Random read/write errors are a bad thing - so don't let anyone
(including the test bench) run on something we know is bad.
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Graf Yang [Thu, 5 Mar 2009 09:32:41 +0000 (17:32 +0800)]
Blackfin arch: update default kernel config, select KSZ8893M driver for BF518
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Sonic Zhang [Thu, 5 Mar 2009 10:26:59 +0000 (18:26 +0800)]
Blackfin arch: Fix bug - KGDB single step into the middle of a 4 bytes instruction on bf561 after soft bp is hit
Run IFLUSH twice to avoid loading wrong instruction
after invalidating icache and following sequence is met.
1) The one instruction address is cached in the icache.
2) This instruction in SDRAM is changed.
3) IFLASH[P0] is executed only once in lackfin_icache_flush_range().
4) This instruction is executed again, but not the changed new one.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Graf Yang [Thu, 5 Mar 2009 09:35:59 +0000 (17:35 +0800)]
Blackfin arch: Fix bug - make ksz8893m driver available when bfin_mac is enabled
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Mike Frysinger [Thu, 5 Mar 2009 09:33:36 +0000 (17:33 +0800)]
Blackfin arch: make sure people do not set the kernel load address too high
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Enrik Berkhan [Thu, 5 Mar 2009 06:42:30 +0000 (14:42 +0800)]
Blackfin arch: fix bug - The SPORT_HYS bit is not set for BF561 0.5
IMHO the setting should depend on ANOMALY_05000305 which is about the
availability of the bit, not ANOMALY_05000265 which only describes the
SPORT sensitivity to noise (checked for BF561 only, though).
If that's not true for other BF variants, maybe the definition of
ANOMALY_05000265 for BF561 should be changed to '(1)' instead.
Signed-off-by: Enrik Berkhan <Enrik.Berkhan@ge.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Roel Kluin [Thu, 5 Mar 2009 00:55:31 +0000 (00:55 +0000)]
Squashfs: frag_size should be signed, as it can hold an error result
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
Phillip Lougher [Thu, 5 Mar 2009 00:40:13 +0000 (00:40 +0000)]
Squashfs: fix documentation typo, Cramfs filesystem limit is 256 MiB
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
Phillip Lougher [Thu, 5 Mar 2009 00:31:12 +0000 (00:31 +0000)]
Squashfs: Fix oops when reading fsfuzzer corrupted filesystems
This fixes a code regression caused by the recent mainlining changes.
The recent code changes call zlib_inflate repeatedly, decompressing into
separate 4K buffers, this code didn't check for the possibility that
zlib_inflate might ask for too many buffers when decompressing corrupted
data.
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
Eric Sandeen [Wed, 4 Mar 2009 23:38:18 +0000 (18:38 -0500)]
ext4: fix ext4_free_inode() vs. ext4_claim_inode() race
I was seeing fsck errors on inode bitmaps after a 4 thread
dbench run on a 4 cpu machine:
Inode bitmap differences: -50736 -(50752--50753) etc...
I believe that this is because ext4_free_inode() uses atomic
bitops, and although ext4_new_inode() *used* to also use atomic
bitops for synchronization, commit
393418676a7602e1d7d3f6e560159c65c8cbd50e changed this to use
the sb_bgl_lock, so that we could also synchronize against
read_inode_bitmap and initialization of uninit inode tables.
However, that change left ext4_free_inode using atomic bitops,
which I think leaves no synchronization between setting &
unsetting bits in the inode table.
The below patch fixes it for me, although I wonder if we're
getting at all heavy-handed with this spinlock...
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Dan Williams [Wed, 4 Mar 2009 23:06:03 +0000 (16:06 -0700)]
dmatest: fix use after free in dmatest_exit
dmatest_cleanup_chanel will free dtc, so grab ->chan before it goes away
and use it to do the release.
Reported-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Luotao Fu [Thu, 26 Feb 2009 11:29:20 +0000 (12:29 +0100)]
ipu_idmac: fix spinlock type
fix a probably accidently dropped reference operator while calling
spin_unlock_restore to an ipu lock.
Signed-off-by: Luotao Fu <l.fu@pengutronix.de>
Cc: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Roel Kluin [Wed, 25 Feb 2009 12:56:21 +0000 (13:56 +0100)]
iop-adma, mv_xor: fix mem leak on self-test setup failure
iop_adma_zero_sum_self_test has the brackets in the wrong place for the
setup failure deallocation path. This error was duplicated in
mv_xor_xor_self_test.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Dan Williams [Mon, 2 Mar 2009 22:33:46 +0000 (15:33 -0700)]
fsldma: fix off by one in dma_halt
Prevent dev_err from firing even if we successfully detected 'dma-idle'
before the full 1ms timeout has elapsed.
Acked-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Dan Williams [Mon, 2 Mar 2009 20:31:35 +0000 (13:31 -0700)]
I/OAT: fail self-test if callback test reaches timeout
If we miss interrupts in the self test then fail registration of this
channel as it is unsuitable for use as a public channel.
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Maciej Sosnowski [Thu, 26 Feb 2009 10:05:43 +0000 (11:05 +0100)]
I/OAT: update driver version and copyright dates
Together with new fixes update driver version
and extend copyright dates ranges.
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Eric Sesterhenn [Thu, 26 Feb 2009 10:05:30 +0000 (11:05 +0100)]
I/OAT: list usage cleanup
Trivial cleanup, list_del(); list_add_tail() is equivalent
to list_move_tail(). Semantic patch for coccinelle can be
found at www.cccmz.de/~snakebyte/list_move_tail.spatch
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Maciej Sosnowski [Thu, 26 Feb 2009 10:05:17 +0000 (11:05 +0100)]
I/OAT: set tcp_dma_copybreak to 256k for I/OAT ver.3
Upcoming server platforms from Intel based on the Nehalem performance
have significantly improved CPU based copy performance.
However, the DMA engine can still be effective at higher I/O sizes
for TCP traffic and at this time copybreak
should be set to 256k for TCP traffic only.
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Maciej Sosnowski [Thu, 26 Feb 2009 10:05:07 +0000 (11:05 +0100)]
I/OAT: cancel watchdog before dma remove
Channel watchdog should be canceled before the rest of dma remove stuff.
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Maciej Sosnowski [Thu, 26 Feb 2009 10:04:54 +0000 (11:04 +0100)]
I/OAT: fail initialization on zero channels detection
On some systems with I/OAT ver.2 when DCA is disabled in BIOS
situations have been observed
that zero DMA channels are detected instead of four.
To avoid kernel panic driver should fail gracefully with appropriate message.
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Maciej Sosnowski [Thu, 26 Feb 2009 10:04:38 +0000 (11:04 +0100)]
I/OAT: do not set DCACTRL_CMPL_WRITE_ENABLE for I/OAT ver.3
Flag DCACTRL_CMPL_WRITE_ENABLE is valid only for I/OAT ver.2
so it should not be set for I/OAT ver.3.
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Maciej Sosnowski [Thu, 26 Feb 2009 10:04:23 +0000 (11:04 +0100)]
I/OAT: add verification for proper APICID_TAG_MAP setting by BIOS
BIOS versions for systems with I/OAT ver.2 have been found
which fail to program APICID_TAG_MAP for DCA.
The ioatdma driver should recognize incorrectly set APICID_TAG_MAP
and disable DCA in that case.
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
etienne [Wed, 4 Mar 2009 06:33:51 +0000 (07:33 +0100)]
smack: fixes for unlabeled host support
The following patch (against 2.6.29rc5) fixes a few issues in the
smack/netlabel "unlabeled host support" functionnality that was added in
2.6.29rc. It should go in before -final.
1) smack_host_label disregard a "0.0.0.0/0 @" rule (or other label),
preventing 'tagged' tasks to access Internet (many systems drop packets with
IP options)
2) netmasks were not handled correctly, they were stored in a way _not
equivalent_ to conversion to be32 (it was equivalent for /0, /8, /16, /24,
/32 masks but not other masks)
3) smack_netlbladdr prefixes (IP/mask) were not consistent (mask&IP was not
done), so there could have been different list entries for the same IP
prefix; if those entries had different labels, well ...
4) they were not sorted
1) 2) 3) are bugs, 4) is a more cosmetic issue.
The patch :
-creates a new helper smk_netlbladdr_insert to insert a smk_netlbladdr,
-sorted by netmask length
-use the new sorted nature of smack_netlbladdrs list to simplify
smack_host_label : the first match _will_ be the more specific
-corrects endianness issues in smk_write_netlbladdr & netlbladdr_seq_show
Signed-off-by: <etienne.basset@numericable.fr>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Reviewed-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: James Morris <jmorris@namei.org>
Eric Dumazet [Wed, 4 Mar 2009 20:11:56 +0000 (12:11 -0800)]
rcu: increment quiescent state counter in ksoftirqd()
If a machine is flooded by network frames, a cpu can loop
100% of its time inside ksoftirqd() without calling schedule().
This can delay RCU grace period to insane values.
Adding rcu_qsctr_inc() call in ksoftirqd() solves this problem.
Paul: "This regression was a result of the recent change from
"schedule()" to "cond_resched()", which got rid of that quiescent
state in the common case where a reschedule is not needed".
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Leann Ogasawara [Wed, 4 Mar 2009 19:53:00 +0000 (11:53 -0800)]
x86: add Dell XPS710 reboot quirk
Dell XPS710 will hang on reboot. This is resolved by adding a quirk to
set bios reboot.
Signed-off-by: Leann Ogasawara <leann.ogasawara@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Cc: "manoj.iyer" <manoj.iyer@canonical.com>
Cc: <stable@kernel.org>
LKML-Reference: <
1236196380.3231.89.camel@emiko>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Daniel Glöckner [Wed, 4 Mar 2009 18:42:27 +0000 (19:42 +0100)]
x86, math-emu: fix init_fpu for task != current
Impact: fix math-emu related crash while using GDB/ptrace
init_fpu() calls finit to initialize a task's xstate, while finit always
works on the current task. If we use PTRACE_GETFPREGS on another
process and both processes did not already use floating point, we get
a null pointer exception in finit.
This patch creates a new function finit_task that takes a task_struct
parameter. finit becomes a wrapper that simply calls finit_task with
current. On the plus side this avoids many calls to get_current which
would each resolve to an inline assembler mov instruction.
An empty finit_task has been added to i387.h to avoid linker errors in
case the compiler still emits the call in init_fpu when
CONFIG_MATH_EMULATION is not defined.
The declaration of finit in i387.h has been removed as the remaining
code using this function gets its prototype from fpu_proto.h.
Signed-off-by: Daniel Glöckner <dg@emlix.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: "Pallipadi Venkatesh" <venkatesh.pallipadi@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Bill Metzenthen <billm@melbpc.org.au>
LKML-Reference: <E1Lew31-0004il-Fg@mailer.emlix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Huang Ying [Wed, 4 Mar 2009 02:58:33 +0000 (10:58 +0800)]
x86: EFI: Back efi_ioremap with init_memory_mapping instead of FIX_MAP
Impact: Fix boot failure on EFI system with large runtime memory range
Brian Maly reported that some EFI system with large runtime memory
range can not boot. Because the FIX_MAP used to map runtime memory
range is smaller than run time memory range.
This patch fixes this issue by re-implement efi_ioremap() with
init_memory_mapping().
Reported-and-tested-by: Brian Maly <bmaly@redhat.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Brian Maly <bmaly@redhat.com>
Cc: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <
1236135513.6204.306.camel@yhuang-dev.sh.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Brian Maly [Wed, 4 Mar 2009 02:55:31 +0000 (21:55 -0500)]
x86: fix DMI on EFI
Impact: reactivate DMI quirks on EFI hardware
DMI tables are loaded by EFI, so the dmi calls must happen after
efi_init() and not before.
Currently Apple hardware uses DMI to determine the framebuffer mappings
for efifb. Without DMI working you also have no video on MacBook Pro.
This patch resolves the DMI issue for EFI hardware (DMI is now properly
detected at boot), and additionally efifb now loads on Apple hardware
(i.e. video works).
Signed-off-by: Brian Maly <bmaly@redhat>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Cc: ying.huang@intel.com
LKML-Reference: <
49ADEDA3.
1030406@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/setup.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
Linus Torvalds [Wed, 4 Mar 2009 15:49:07 +0000 (07:49 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Run sbc610 USB fixup code only on the appropriate platform.
Helge Bahmann [Wed, 4 Mar 2009 11:49:14 +0000 (21:49 +1000)]
drm: fix double lock typo
[airlied: you shall not retype patches from other trees half asleep]
Signed-of-by: Dave Airlie <airlied@redhat.com>
Mike Frysinger [Wed, 4 Mar 2009 09:36:49 +0000 (17:36 +0800)]
Blackfin arch: update anomaly sheets to match latest public info
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Michael Hennerich [Wed, 4 Mar 2009 09:35:51 +0000 (17:35 +0800)]
Blackfin arch: Fix BUG - kernel fails to build in pm.c when allow wakeup fromi standby by GPIO
This feature is not available on BF54x.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Michael Hennerich [Thu, 5 Mar 2009 08:45:55 +0000 (16:45 +0800)]
Blackfin arch: PM_BFIN_WAKE_GP: update help
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Sonic Zhang [Thu, 5 Mar 2009 08:44:53 +0000 (16:44 +0800)]
Blackfin arch: fix bug - kgdb fails to continue after setting breakpoint on bf561-ezkit kernel with smp patch
Free spinlock before call IPI handlers.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Header from folded patch 'blackfin_arch__fix_bug_-_kgdb_fails_to_continue_after_setting_breakpoint_on_bf561-ezkit_kernel_with_smp_patch-1':
Blackfin arch: fix bug - kgdb fails to continue after setting breakpoint on bf561-ezkit kernel with smp patch
Don't test l1 code in SMP kernel.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Tony Breeds [Tue, 3 Mar 2009 17:59:30 +0000 (17:59 +0000)]
powerpc: Run sbc610 USB fixup code only on the appropriate platform.
commit
a969e76a7101bf5f3d369563df1ca1253dd6131b (powerpc: Correct USB
support for GE Fanuc SBC610) introduced a fixup for NEC usb controllers.
This fixup should only run on GEF SBC610 boards.
Fixes Fedora bug #486511.
(https://bugzilla.redhat.com/show_bug.cgi?id=486511)
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Hennerich [Wed, 4 Mar 2009 03:34:10 +0000 (11:34 +0800)]
Blackfin arch: Enable Write Back Cache on all Blackfin Boards
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Philippe Gerum [Wed, 4 Mar 2009 08:52:38 +0000 (16:52 +0800)]
Blackfin arch: Update adeos blackfin arch patch to 1.9-00
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Linus Torvalds [Wed, 4 Mar 2009 01:05:22 +0000 (17:05 -0800)]
Linux 2.6.29-rc7
Linus Torvalds [Wed, 4 Mar 2009 01:05:08 +0000 (17:05 -0800)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: ixp4xx - Fix qmgr_request_queue build failure
crypto: api - Fix module load deadlock with fallback algorithms