29 Nov, 2010
6 commits
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POWER5 added popcntb, and POWER7 added popcntw and popcntd. As a first step
this patch does all the work out of line, but it would be nice to implement
them as inlines with an out of line fallback.The performance issue with hweight was noticed when disabling SMT on a large
(192 thread) POWER7 box. The patch improves that testcase by about 8%.Signed-off-by: Anton Blanchard
Signed-off-by: Benjamin Herrenschmidt -
This avoids some include-file hell, and the function isn't really
important enough to be inlined anyway.Reported-by: Ingo Molnar
Signed-off-by: Linus Torvalds -
And in particular, use it in 'pipe_fcntl()'.
The other pipe functions do not need to use the 'careful' version, since
they are only ever called for things that are already known to be pipes.The normal read/write/ioctl functions are called through the file
operations structures, so if a file isn't a pipe, they'd never get
called. But pipe_fcntl() is special, and called directly from the
generic fcntl code, and needs to use the same careful function that the
splice code is using.Cc: Jens Axboe
Cc: Andrew Morton
Cc: Al Viro
Cc: Dave Jones
Signed-off-by: Linus Torvalds -
.. and change it to take the 'file' pointer instead of an inode, since
that's what all users want anyway.The renaming is preparatory to exporting it to other users. The old
'pipe_info()' name was too generic and is already used elsewhere, so
before making the function public we need to use a more specific name.Cc: Jens Axboe
Cc: Andrew Morton
Cc: Al Viro
Cc: Dave Jones
Signed-off-by: Linus Torvalds -
…/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf: Fix the software context switch counter
perf, x86: Fixup Kconfig deps
x86, perf, nmi: Disable perf if counters are not accessible
perf: Fix inherit vs. context rotation bug -
* 'fwnet' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: net: throttle TX queue before running out of tlabels
firewire: net: replace lists by counters
firewire: net: fix memory leaks
firewire: net: count stats.tx_packets and stats.tx_bytes
28 Nov, 2010
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (30 commits)
ALSA: hda - Use ALC_INIT_DEFAULT for really default initialization
ASoC: Fix resource reclaim for osk5912
ASoC: tlv320aic3x - fix variable may be used uninitialized warning
ASoC: davinci-vcif - fix a memory leak
ASoC: phycore-ac97: fix resource leak
ASoC: imx-ssi: fix resource leak
ASoC: simone: fix resource leak in simone_init error path
ASoC: sam9g20_wm8731: fix resource leak in at91sam9g20ek_init error path
ASoC: snd-soc-afeb9260: remove unneeded platform_device_del in error path
ASoC: pcm030-audio-fabric: fix resource leak in pcm030_fabric_init error path
ASoC: efika-audio-fabric: fix resource leak in efika_fabric_init error path
ASoC: Call snd_soc_unregister_dais instead of snd_soc_unregister_dai in sh4_soc_dai_remove
ASoC: fix SND_PXA2XX_LIB Kconfig warning
ALSA: hda - Fix ALC660-VD/ALC861-VD capture/playback mixers
ALSA: HDA: Add an extra DAC for Realtek ALC887-VD
ASoC: nuc900-ac97: fix a memory leak
ASoC: Return proper error for omap3pandora_soc_init
ASoC: wm8961 - clear WM8961_MCLKDIV bit for freq <= 16500000
ASoC: wm8961 - clear WM8961_DACSLOPE bit for normal mode
ALSA: hda - Fix Acer 7730G support
...
27 Nov, 2010
14 commits
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* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
NFS: Ensure we return the dirent->d_type when it is known
NFS: Correct the array bound calculation in nfs_readdir_add_to_array
NFS: Don't ignore errors from nfs_do_filldir()
NFS: Fix the error handling in "uncached_readdir()"
NFS: Fix a page leak in uncached_readdir()
NFS: Fix a page leak in nfs_do_filldir()
NFS: Assume eof if the server returns no readdir records
NFS: Buffer overflow in ->decode_dirent() should not be fatal
Pure nfs client performance using odirect.
SUNRPC: Fix an infinite loop in call_refresh/call_refreshresult -
* 'linux-next' of git://git.infradead.org/ubi-2.6:
UBI: release locks in check_corruption -
…el/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
posix-cpu-timers: Rcu_read_lock/unlock protect find_task_by_vpid call -
…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:
dmar, x86: Use function stubs when CONFIG_INTR_REMAP is disabled
x86-64: Fix and clean up AMD Fam10 MMCONF enabling
x86: UV: Address interrupt/IO port operation conflict
x86: Use online node real index in calulate_tbl_offset()
x86, asm: Fix binutils 2.15 build failure -
…/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf symbols: Remove incorrect open-coded container_of()
perf record: Handle restrictive permissions in /proc/{kallsyms,modules}
x86/kprobes: Prevent kprobes to probe on save_args()
irq_work: Drop cmpxchg() result
perf: Fix owner-list vs exit
x86, hw_nmi: Move backtrace_mask declaration under ARCH_HAS_NMI_WATCHDOG
tracing: Fix recursive user stack trace
perf,hw_breakpoint: Initialize hardware api earlier
x86: Ignore trap bits on single step exceptions
tracing: Force arch_local_irq_* notrace for paravirt
tracing: Fix module use of trace_bprintk() -
…l/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: Fix idle balancing
sched: Fix volanomark performance regression -
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] qdio: free indicator after reset is finished
[S390] nmi: fix clock comparator revalidation -
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
cciss: fix build for PROC_FS disabled
block: fix amiga and atari floppy driver compile warning
blk-throttle: Fix calculation of max number of WRITES to be dispatched
ioprio: grab rcu_read_lock in sys_ioprio_{set,get}()
xen/blkfront: cope with backend that fail empty BLKIF_OP_WRITE_BARRIER requests
xen/blkfront: Implement FUA with BLKIF_OP_WRITE_BARRIER
xen/blkfront: change blk_shadow.request to proper pointer
xen/blkfront: map REQ_FLUSH into a full barrier -
…nel/git/lethal/sh-2.6
* 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
ARM: mach-shmobile: clock-sh7372: remove bogus pllc2 clock toggling.
ARM: mach-shmobile: clock-sh7372: remove unnecessary fsi clocks
ARM: mach-shmobile: clock-sh7372: modify error code
ARM: mach-shmobile: ap4evb: FSI clock use proper process for ak4642
ARM: mach-shmobile: ap4evb: FSI clock use proper process for HDMI
ARM: mach-shmobile: clock-sh7372: remove fsidiv bogus disable
ARM: mach-shmobile: sh7372 USB0/IIC1 MSTP fix -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
mmc: sdhci: 8-bit bus width changes
mmc: sdio: fix runtime PM anomalies by introducing MMC_CAP_POWER_OFF_CARD
mmc: sdio: fix nasty oops in mmc_sdio_detect
mmc: omap4: hsmmc: Fix improper card detection while booting
mmc: fix rmmod race for hosts using card-detection polling
mmc: sdhci: Fix crash on boot with C0 stepping Moorestown platforms
mmc: sdhci-esdhc-imx: enable QUIRK_NO_MULTIBLOCK only for i.MX25 and i.MX35
mmc: sdhci-esdhc-imx: fix timeout on i.MX's sdhci
mmc: sdhci: Properly enable SDIO IRQ wakeups
mmc: ushc: Return proper error code for ushc_probe()
mmc: Fix printing of card DDR type -
…git/kgene/linux-samsung
* 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: S5PV210: Fix sysdev related warning messages
ARM: S3C24XX: Fix UART3 submask on S3C2416 and S3C2443
ARM: S3C24XX: Fix Demux error in UART3 irqs on S3C2443 and S3C2416
ARM: S3C64XX: fix uart clock setup for mini6410/real6410
ARM: S3C24XX: Fix wrong s3c_gpio_cfgpull
ARM: S3C2410: Adapt h1940-bluetooth to gpiolib changes -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
nilfs2: fix typo in comment of nilfs_dat_move function
nilfs2: nilfs_iget_for_gc() returns ERR_PTR -
When SKU assid gives no valid bits for 0x38, the driver didn't take
any action, so far. This resulted in the missing initialization for
external amps, etc, thus the silent output in the end.Especially users hit this problem on ALC888 newly since 2.6.35,
where the driver doesn't force to use ALC_INIT_DEFAULT any more.This patch sets the default initialization scheme to use
ALC_INIT_DEFAULT when no valid bits are set for SKU assid.Reference:
https://bugzilla.redhat.com/show_bug.cgi?id=657388Reported-and-tested-by: Kyle McMartin
Cc:
Signed-off-by: Takashi Iwai
26 Nov, 2010
7 commits
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Stephane noticed that because the perf_sw_event() call is inside the
perf_event_task_sched_out() call it won't get called unless we
have a per-task counter.Reported-by: Stephane Eranian
Signed-off-by: Peter Zijlstra
LKML-Reference:
Signed-off-by: Ingo Molnar -
This leads to a Kconfig dep inversion, x86 selects PERF_EVENT (due to
a hw_breakpoint dep) but doesn't unconditionally provide
HAVE_PERF_EVENT.(This can cause build failures on M386/M486 kernel .config's.)
Signed-off-by: Peter Zijlstra
LKML-Reference:
Signed-off-by: Ingo Molnar -
In a kvm virt guests, the perf counters are not emulated. Instead they
return zero on a rdmsrl. The perf nmi handler uses the fact that crossing
a zero means the counter overflowed (for those counters that do not have
specific interrupt bits). Therefore on kvm guests, perf will swallow all
NMIs thinking the counters overflowed.This causes problems for subsystems like kgdb which needs NMIs to do its
magic. This problem was discovered by running kgdb tests.The solution is to write garbage into a perf counter during the
initialization and hopefully reading back the same number. On kvm
guests, the value will be read back as zero and we disable perf as
a result.Reported-by: Jason Wessel
Patch-inspired-by: Peter Zijlstra
Signed-off-by: Don Zickus
Signed-off-by: Peter Zijlstra
Cc: Stephane Eranian
LKML-Reference:
Signed-off-by: Ingo Molnar -
It was found that sometimes children of tasks with inherited events had
one extra event. Eventually it turned out to be due to the list rotation
no being exclusive with the list iteration in the inheritance code.Cure this by temporarily disabling the rotation while we inherit the events.
Signed-off-by: Thomas Gleixner
Signed-off-by: Peter Zijlstra
LKML-Reference:
Cc:
Signed-off-by: Ingo Molnar -
The stubs for CONFIG_INTR_REMAP disabled need to be functions
instead of values to eliminate build warnings.arch/x86/kernel/apic/apic.c: In function 'lapic_suspend':
arch/x86/kernel/apic/apic.c:2060:3: warning: statement with no effect
arch/x86/kernel/apic/apic.c: In function 'lapic_resume':
arch/x86/kernel/apic/apic.c:2137:3: warning: statement with no effectReported-and-Tested-by: Fabio Comolli
Signed-off-by: Randy Dunlap
Cc: Suresh Siddha
Cc: Yinghai Lu
Cc: David Woodhouse
Cc: Jesse Barnes
LKML-Reference:
Signed-off-by: Ingo Molnar -
In current implementation, there are resources leak in the error path.
This patch properly reclaims the allocated resources in the error path.Also adds a missing clk_put in osk_soc_exit.
Signed-off-by: Axel Lin
Acked-by: Jarkko Nikula
Acked-by: Liam Girdwood
Signed-off-by: Mark Brown -
If aic3x_read failed , val is used uninitialized.
Fix it by initializing val to 0.This patch fixes below compile warning:
sound/soc/codecs/tlv320aic3x.c: In function 'aic3x_get_gpio':
sound/soc/codecs/tlv320aic3x.c:1183: warning: 'val' may be used uninitialized in this function
sound/soc/codecs/tlv320aic3x.c: In function 'aic3x_headset_detected':
sound/soc/codecs/tlv320aic3x.c:1211: warning: 'val' may be used uninitialized in this function
sound/soc/codecs/tlv320aic3x.c: In function 'aic3x_button_pressed':
sound/soc/codecs/tlv320aic3x.c:1219: warning: 'val' may be used uninitialized in this functionSigned-off-by: Axel Lin
Acked-by: Liam Girdwood
Signed-off-by: Mark Brown
25 Nov, 2010
12 commits
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Signed-off-by: Axel Lin
Acked-by: Liam Girdwood
Signed-off-by: Mark Brown -
Fix imx_phycore_init() error path and imx_phycore_exit() to properly free
allocated resources.Signed-off-by: Axel Lin
Acked-by: Sascha Hauer
Acked-by: Liam Girdwood
Signed-off-by: Mark Brown -
Fix imx_ssi_probe() error path and imx_ssi_remove() to properly free
allocated resources.Signed-off-by: Axel Lin
Acked-by: Sascha Hauer
Acked-by: Liam Girdwood
Signed-off-by: Mark Brown -
Fix the error path to properly free allocated resources.
Signed-off-by: Axel Lin
Acked-by: Mika Westerberg
Acked-by: Liam Girdwood
Signed-off-by: Mark Brown -
Fix the error path to properly free allocated resources.
Signed-off-by: Axel Lin
Acked-by: Liam Girdwood
Signed-off-by: Mark Brown -
Signed-off-by: Axel Lin
Acked-by: Liam Girdwood
Signed-off-by: Mark Brown -
Add missing platform_device_put() if platform_device_add() failed.
Signed-off-by: Axel Lin
Acked-by: Liam Girdwood
Signed-off-by: Mark Brown -
Add missing platform_device_put() if platform_device_add() failed.
Signed-off-by: Axel Lin
Acked-by: Liam Girdwood
Signed-off-by: Mark Brown -
We call snd_soc_register_dais() in sh4_soc_dai_probe(),
thus we should call snd_soc_unregister_dais() in sh4_soc_dai_remove().Otherwise, we got "too many arguments to function 'snd_soc_unregister_dai'"
error message.Signed-off-by: Axel Lin
Acked-by: Liam Girdwood
Signed-off-by: Mark Brown -
Fix following warning observed when SND_PXA2XX_SOC is set and SND_ARM isn't:
warning: (SND_PXA2XX_AC97 && SOUND && !M68K && SND && SND_ARM && ARCH_PXA ||
SND_PXA2XX_SOC && SOUND && !M68K && SND && SND_SOC && ARCH_PXA) selects
SND_PXA2XX_LIB which has unmet direct dependencies (SOUND && !M68K && SND &&
SND_ARM)Signed-off-by: Dmitry Artamonow
Acked-by: Liam Girdwood
Signed-off-by: Mark Brown -
The qdio device indicator is freed before the device is notified that
the indicator is reset. This sequence contains a race when the freed
indicator is used by a new device while the reset of the indicator is
still pending. Do the reset operation before freeing the indicator to
avoid that potential race.Signed-off-by: Jan Glauber
Signed-off-by: Martin Schwidefsky -
On each machine check all registers are revalidated. The save area for
the clock comparator however only contains the upper most seven bytes
of the former contents, if valid.
Therefore the machine check handler uses a store clock instruction to
get the current time and writes that to the clock comparator register
which in turn will generate an immediate timer interrupt.
However within the lowcore the expected time of the next timer
interrupt is stored. If the interrupt happens before that time the
handler won't be called. In turn the clock comparator won't be
reprogrammed and therefore the interrupt condition stays pending which
causes an interrupt loop until the expected time is reached.On NOHZ machines this can result in unresponsive machines since the
time of the next expected interrupted can be a couple of days in the
future.To fix this just revalidate the clock comparator register with the
expected value.
In addition the special handling for udelay must be changed as well.Signed-off-by: Heiko Carstens
Signed-off-by: Martin Schwidefsky
