Nishanth Aravamudan [Tue, 26 Oct 2010 17:35:11 +0000 (17:35 +0000)]
powerpc/macio: Ensure all dma routines get copied over
Also add a comment to dev_archdata, indicating that changes there need
to be verified against the driver code.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Nishanth Aravamudan [Mon, 18 Oct 2010 07:27:03 +0000 (07:27 +0000)]
powerpc/pseries: iommu cleanup
No need to initialize per-cpu pointer to NULL, it is the default.
Direct dma ops and no setup are the defaults, no need to set for
iommu-off.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Reviewed-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Nishanth Aravamudan [Mon, 18 Oct 2010 07:27:02 +0000 (07:27 +0000)]
powerpc/dart: iommu table cleanup
No need to set the device tree device_node pci node iommu pointer, its
only used for dlpar remove.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Nishanth Aravamudan [Mon, 18 Oct 2010 07:27:01 +0000 (07:27 +0000)]
powerpc/cell: Beat dma ops cleanup
direct_dma_ops is the default pci dma ops.
No need to call a function to get the pci dma ops, we know they are the
dma_direct_ops.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Nishanth Aravamudan [Mon, 18 Oct 2010 07:27:00 +0000 (07:27 +0000)]
powerpc/pasemi: Clean up pasemi iommu table initializations
No need for empty helpers with iommu off, the ppc_md hooks are optional.
The direct_dma_ops are the default pci_dma_ops, so no need to set in the
them iommu off case.
No need to set the device tree device_node pci node iommu pointer, its
only used for dlpar remove.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Nishanth Aravamudan [Mon, 18 Oct 2010 07:26:59 +0000 (07:26 +0000)]
powerpc/vio: Use dma ops helpers
Use the set_dma_ops helper. Instead of modifying vio_dma_mapping_ops,
just create a trivial wrapper for dma_supported.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tracey Dent [Fri, 15 Oct 2010 17:30:48 +0000 (17:30 +0000)]
powerpc/ps3: Replace the use of <module>-objs with <module>-y
Changed <module>-objs to <module>-y in Makefile.
Signed-off-by: Tracey Dent <tdent48227@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Srikanth Krishnakar [Thu, 14 Oct 2010 04:03:35 +0000 (04:03 +0000)]
rtc-cmos.c : Fix warning on PowerPC
The following warning is seen while compilation of PowerPC kernel:
CC drivers/rtc/rtc-cmos.o
drivers/rtc/rtc-cmos.c:697:2: warning: #warning Assuming 128 bytes
of RTC+NVRAM address space, not 64 bytes.
Fix it by adding defined(__powerpc__).
Signed-off-by: Srikanth Krishnakar <skrishna@mvista.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Vaidyanathan Srinivasan [Wed, 6 Oct 2010 08:37:09 +0000 (08:37 +0000)]
powerpc: Add support for new hcall H_BEST_ENERGY
Create sysfs interface to export data from H_BEST_ENERGY hcall
that can be used by administrative tools on supported pseries
platforms for energy management optimizations.
sys/device/system/cpu/pseries_(de)activate_hint_list and
sys/device/system/cpu/cpuN/pseries_(de)activate_hint will provide
hints for activation and deactivation of cpus respectively.
These hints are abstract number given by the hypervisor based
on the extended knowledge the hypervisor has regarding the
system topology and resource mappings.
The activate and the deactivate sysfs entry is for the two
distinct operations that we could do for energy savings. When
we have more capacity than required, we could deactivate few
core to save energy. The choice of the core to deactivate
will be based on /sys/devices/system/cpu/deactivate_hint_list.
The comma separated list of cpus (cores) will be the preferred
choice. If we have to activate some of the deactivated cores,
then /sys/devices/system/cpu/activate_hint_list will be used.
The per-cpu file
/sys/device/system/cpu/cpuN/pseries_(de)activate_hint further
provide more fine grain information by exporting the value of
the hint itself.
Added new driver module
arch/powerpc/platforms/pseries/pseries_energy.c
under new config option CONFIG_PSERIES_ENERGY
Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Vaidyanathan Srinivasan [Wed, 6 Oct 2010 08:36:59 +0000 (08:36 +0000)]
powerpc: Cleanup APIs for cpu/thread/core mappings
These APIs take logical cpu number as input
Change cpu_first_thread_in_core() to cpu_first_thread_sibling()
Change cpu_last_thread_in_core() to cpu_last_thread_sibling()
These APIs convert core number (index) to logical cpu/thread numbers
Add cpu_first_thread_of_core(int core)
Changed cpu_thread_to_core() to cpu_core_index_of_thread(int cpu)
The goal is to make 'threads_per_core' accessible to the
pseries_energy module. Instead of making an API to read
threads_per_core, this is a higher level wrapper function to
convert from logical cpu number to core number.
The current APIs cpu_first_thread_in_core() and
cpu_last_thread_in_core() returns logical CPU number while
cpu_thread_to_core() returns core number or index which is
not a logical CPU number. The new APIs are now clearly named to
distinguish 'core number' versus first and last 'logical cpu
number' in that core.
The new APIs cpu_{first,last}_thread_sibling() work on
logical cpu numbers. While cpu_first_thread_of_core() and
cpu_core_index_of_thread() work on core index.
Example usage: (4 threads per core system)
cpu_first_thread_sibling(5) = 4
cpu_last_thread_sibling(5) = 7
cpu_core_index_of_thread(5) = 1
cpu_first_thread_of_core(1) = 4
cpu_core_index_of_thread() is used in cpu_to_drc_index() in the
module and cpu_first_thread_of_core() is used in
drc_index_to_cpu() in the module.
Make API changes to few callers. Export symbols for use in modules.
Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
FUJITA Tomonori [Fri, 1 Oct 2010 11:12:54 +0000 (11:12 +0000)]
powerpc: enable ARCH_DMA_ADDR_T_64BIT with ARCH_PHYS_ADDR_T_64BIT
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Will Schmidt [Tue, 28 Sep 2010 15:33:12 +0000 (15:33 +0000)]
powerpc/pseries: Add kernel parameter to disable batched hcalls
This introduces a pair of kernel parameters that can be used to disable
the MULTITCE and BULK_REMOVE h-calls.
By default, those hcalls are enabled, active, and good for throughput
and performance. The ability to disable them will be useful for some of
the PREEMPT_RT related investigation and work occurring on Power.
Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com>
cc: Olof Johansson <olof@lixom.net>
cc: Anton Blanchard <anton@samba.org>
cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Lennert Buytenhek [Tue, 21 Sep 2010 23:22:40 +0000 (23:22 +0000)]
powerpc: Fix two typos in Documentation/powerpc/booting-without-of.txt
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Joe Perches [Mon, 13 Sep 2010 09:47:42 +0000 (09:47 +0000)]
drivers/char/hvc_vio: Use static const char arrays
Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Christian Dietrich [Mon, 6 Sep 2010 04:36:12 +0000 (04:36 +0000)]
powerpc: Removing undead ifdef __KERNEL__
The __KERNEL__ ifdef isn't necessary at this point, because it is
checked in an outer ifdef level already and has no effect here.
Signed-off-by: Christian Dietrich <qy03fugy@stud.informatik.uni-erlangen.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Anton Blanchard [Tue, 24 Aug 2010 14:23:44 +0000 (14:23 +0000)]
powerpc/kdump: Override crash_free_reserved_phys_range to avoid freeing RTAS
The crashkernel region will almost always overlap RTAS. If we free the
crashkernel region via "echo 0 > /sys/kernel/kexec_crash_size" then we will
free RTAS and the machine will crash in confusing and exciting ways.
Override crash_free_reserved_phys_range and check for overlap with RTAS.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Anton Blanchard [Thu, 12 Aug 2010 16:28:09 +0000 (16:28 +0000)]
powerpc: Add support for popcnt instructions
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 <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Linus Torvalds [Mon, 29 Nov 2010 00:27:19 +0000 (16:27 -0800)]
Un-inline get_pipe_info() helper function
This avoids some include-file hell, and the function isn't really
important enough to be inlined anyway.
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 28 Nov 2010 22:09:57 +0000 (14:09 -0800)]
Export 'get_pipe_info()' to other users
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 <jaxboe@fusionio.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 28 Nov 2010 21:56:09 +0000 (13:56 -0800)]
Rename 'pipe_info()' to 'get_pipe_info()'
.. 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 <jaxboe@fusionio.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 28 Nov 2010 20:25:02 +0000 (12:25 -0800)]
Merge branch 'perf-fixes-for-linus' of git://git./linux/kernel/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
Linus Torvalds [Sun, 28 Nov 2010 20:24:20 +0000 (12:24 -0800)]
Merge branch 'fwnet' of git://git./linux/kernel/git/ieee1394/linux1394-2.6
* '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
Linus Torvalds [Sat, 27 Nov 2010 20:42:15 +0000 (12:42 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6
* '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
...
Linus Torvalds [Fri, 26 Nov 2010 22:30:30 +0000 (07:30 +0900)]
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* '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
Linus Torvalds [Fri, 26 Nov 2010 22:30:08 +0000 (07:30 +0900)]
Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6
* 'linux-next' of git://git.infradead.org/ubi-2.6:
UBI: release locks in check_corruption
Linus Torvalds [Fri, 26 Nov 2010 22:29:20 +0000 (07:29 +0900)]
Merge branch 'timers-fixes-for-linus' of git://git./linux/kernel/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
Linus Torvalds [Fri, 26 Nov 2010 22:28:47 +0000 (07:28 +0900)]
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:
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
Linus Torvalds [Fri, 26 Nov 2010 22:28:17 +0000 (07:28 +0900)]
Merge branch 'perf-fixes-for-linus' of git://git./linux/kernel/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()
Linus Torvalds [Fri, 26 Nov 2010 22:27:54 +0000 (07:27 +0900)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/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
Linus Torvalds [Fri, 26 Nov 2010 22:26:48 +0000 (07:26 +0900)]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6
* '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
Linus Torvalds [Fri, 26 Nov 2010 22:17:50 +0000 (07:17 +0900)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* '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
Linus Torvalds [Fri, 26 Nov 2010 22:17:16 +0000 (07:17 +0900)]
Merge branch 'rmobile-fixes-for-linus' of git://git./linux/kernel/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
Linus Torvalds [Fri, 26 Nov 2010 22:16:29 +0000 (07:16 +0900)]
Merge branch 'for-linus' of git://git./linux/kernel/git/cjb/mmc
* '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
Linus Torvalds [Fri, 26 Nov 2010 22:15:25 +0000 (07:15 +0900)]
Merge branch 's5p-fixes-for-linus' of git://git./linux/kernel/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
Linus Torvalds [Fri, 26 Nov 2010 22:14:00 +0000 (07:14 +0900)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ryusuke/nilfs2
* '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
Takashi Iwai [Fri, 26 Nov 2010 16:17:42 +0000 (17:17 +0100)]
Merge branch 'fix/asoc' into for-linus
Takashi Iwai [Fri, 26 Nov 2010 16:11:18 +0000 (17:11 +0100)]
ALSA: hda - Use ALC_INIT_DEFAULT for really default initialization
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=657388
Reported-and-tested-by: Kyle McMartin <kyle@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Peter Zijlstra [Fri, 26 Nov 2010 12:49:04 +0000 (13:49 +0100)]
perf: Fix the software context switch counter
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 <eranian@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Peter Zijlstra [Tue, 16 Nov 2010 20:49:01 +0000 (21:49 +0100)]
perf, x86: Fixup Kconfig deps
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 <a.p.zijlstra@chello.nl>
LKML-Reference: <
20101117222055.
982965150@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Don Zickus [Mon, 22 Nov 2010 21:55:23 +0000 (16:55 -0500)]
x86, perf, nmi: Disable perf if counters are not accessible
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 <jason.wessel@windriver.com>
Patch-inspired-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
LKML-Reference: <
1290462923-30734-1-git-send-email-dzickus@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Wed, 24 Nov 2010 09:05:55 +0000 (10:05 +0100)]
perf: Fix inherit vs. context rotation bug
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 <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Randy Dunlap [Mon, 22 Nov 2010 20:48:34 +0000 (12:48 -0800)]
dmar, x86: Use function stubs when CONFIG_INTR_REMAP is disabled
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 effect
Reported-and-Tested-by: Fabio Comolli <fabio.comolli@gmail.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
LKML-Reference: <
20101122124834.
74429004.randy.dunlap@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Axel Lin [Wed, 24 Nov 2010 14:24:01 +0000 (22:24 +0800)]
ASoC: Fix resource reclaim for osk5912
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 <axel.lin@gmail.com>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Axel Lin [Wed, 24 Nov 2010 14:40:59 +0000 (22:40 +0800)]
ASoC: tlv320aic3x - fix variable may be used uninitialized warning
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 function
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Axel Lin [Thu, 25 Nov 2010 03:33:14 +0000 (11:33 +0800)]
ASoC: davinci-vcif - fix a memory leak
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Axel Lin [Thu, 25 Nov 2010 07:14:03 +0000 (15:14 +0800)]
ASoC: phycore-ac97: fix resource leak
Fix imx_phycore_init() error path and imx_phycore_exit() to properly free
allocated resources.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Axel Lin [Thu, 25 Nov 2010 07:13:09 +0000 (15:13 +0800)]
ASoC: imx-ssi: fix resource leak
Fix imx_ssi_probe() error path and imx_ssi_remove() to properly free
allocated resources.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Axel Lin [Thu, 25 Nov 2010 07:12:30 +0000 (15:12 +0800)]
ASoC: simone: fix resource leak in simone_init error path
Fix the error path to properly free allocated resources.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Axel Lin [Thu, 25 Nov 2010 07:11:03 +0000 (15:11 +0800)]
ASoC: sam9g20_wm8731: fix resource leak in at91sam9g20ek_init error path
Fix the error path to properly free allocated resources.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Axel Lin [Thu, 25 Nov 2010 02:44:59 +0000 (10:44 +0800)]
ASoC: snd-soc-
afeb9260: remove unneeded platform_device_del in error path
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Axel Lin [Thu, 25 Nov 2010 07:08:31 +0000 (15:08 +0800)]
ASoC: pcm030-audio-fabric: fix resource leak in pcm030_fabric_init error path
Add missing platform_device_put() if platform_device_add() failed.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Axel Lin [Thu, 25 Nov 2010 07:07:25 +0000 (15:07 +0800)]
ASoC: efika-audio-fabric: fix resource leak in efika_fabric_init error path
Add missing platform_device_put() if platform_device_add() failed.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Axel Lin [Thu, 25 Nov 2010 09:23:55 +0000 (17:23 +0800)]
ASoC: Call snd_soc_unregister_dais instead of snd_soc_unregister_dai in sh4_soc_dai_remove
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 <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Dmitry Artamonow [Wed, 24 Nov 2010 21:46:15 +0000 (00:46 +0300)]
ASoC: fix SND_PXA2XX_LIB Kconfig warning
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 <mad_soft@inbox.ru>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Jan Glauber [Thu, 25 Nov 2010 08:52:46 +0000 (09:52 +0100)]
[S390] qdio: free indicator after reset is finished
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 <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Thu, 25 Nov 2010 08:52:45 +0000 (09:52 +0100)]
[S390] nmi: fix clock comparator revalidation
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 <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Herton Ronaldo Krzesinski [Thu, 25 Nov 2010 02:08:01 +0000 (00:08 -0200)]
ALSA: hda - Fix ALC660-VD/ALC861-VD capture/playback mixers
The mixer nids passed to alc_auto_create_input_ctls are wrong: 0x15 is
a pin, and 0x09 is the ADC on both ALC660-VD/ALC861-VD. Thus with
current code, input playback volume/switches and input source mixer
controls are not created, and recording doesn't work. Select correct
mixers, 0x0b (input playback mixer) and 0x22 (capture source mixer).
Reference: https://qa.mandriva.com/show_bug.cgi?id=61159
Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Abhilash Kesavan [Fri, 8 Oct 2010 03:37:19 +0000 (09:07 +0530)]
ARM: S5PV210: Fix sysdev related warning messages
This patch fixes following warning messages when CONFIG_PM selected.
In file included from arch/arm/mach-s5pv210/mach-smdkv210.c:34:
arch/arm/plat-samsung/include/plat/pm.h:104: warning: 'struct sys_device'
declared inside parameter list
arch/arm/plat-samsung/include/plat/pm.h:104: warning: its scope is only this
definition or declaration, which is probably not what you want
arch/arm/plat-samsung/include/plat/pm.h:105: warning: 'struct sys_device'
declared inside parameter list
In file included from arch/arm/mach-s5pv210/mach-smdkc110.c:31:
arch/arm/plat-samsung/include/plat/pm.h:104: warning: 'struct sys_device'
declared inside parameter list
arch/arm/plat-samsung/include/plat/pm.h:104: warning: its scope is only this
definition or declaration, which is probably not what you want
arch/arm/plat-samsung/include/plat/pm.h:105: warning: 'struct sys_device'
declared inside parameter list
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Abhilash Kesavan [Thu, 21 Oct 2010 01:15:48 +0000 (06:45 +0530)]
ARM: S3C24XX: Fix UART3 submask on S3C2416 and S3C2443
The UART3 submask should be 0x7 (SUBSRCPND[26:24]).
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Abhilash Kesavan [Thu, 21 Oct 2010 01:15:48 +0000 (06:45 +0530)]
ARM: S3C24XX: Fix Demux error in UART3 irqs on S3C2443 and S3C2416
IRQ_S3C2443_UART3 is being used as the base when it should actually
be IRQ_S3C2443_RX3 on S3C2443 and S3C2416 for the UART3.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Darius Augulis [Tue, 16 Nov 2010 09:08:50 +0000 (18:08 +0900)]
ARM: S3C64XX: fix uart clock setup for mini6410/real6410
Don't rewrite clock config in UCON preconfigured by
bootloader. No need to set 10th bit in UCON because
[11:10] 2'b00 means source clock is PCLK too.
If set, console does not work if bootloader
has preconfigured [11:10] with 2'b00.
If not set, console works with any bootloader
config value (2'bxx).
More information about clock setup in UCON is available
in "S3C6410X RISC Microprocessor User's Manual,
Revision 1.20" p. 31-13 (Chapter 31.6.2
UART CONTROL REGISTER).
Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Kukjin Kim [Mon, 15 Nov 2010 02:11:22 +0000 (11:11 +0900)]
ARM: S3C24XX: Fix wrong s3c_gpio_cfgpull
This patch fixes wrong s3c_gpio_cfgpull with s3c_gpio_setpull.
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Vasily Khoruzhick [Tue, 16 Nov 2010 09:11:59 +0000 (18:11 +0900)]
ARM: S3C2410: Adapt h1940-bluetooth to gpiolib changes
Replace in s3c_gpio_cfgpull with s3c_gpio_setpull.
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Linus Torvalds [Wed, 24 Nov 2010 23:36:24 +0000 (08:36 +0900)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging:
hwmon: (lis3lv02d_i2c) Fix compile warnings
hwmon: (i5k_amb) Fix compile warning
Linus Torvalds [Wed, 24 Nov 2010 23:35:53 +0000 (08:35 +0900)]
Merge branch 'for-linus' of git://git./linux/kernel/git/konrad/xen
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen: remove duplicated #include
xen: x86/32: perform initial startup on initial_page_table
Linus Torvalds [Wed, 24 Nov 2010 22:42:32 +0000 (07:42 +0900)]
Merge git://git./linux/kernel/git/cmetcalf/linux-tile
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
arch/tile: fix memchr() not to dereference memory for zero length
arch/tile: make glibc's sysconf(_SC_NPROCESSORS_CONF) work correctly
arch/tile: fix rwlock so would-be write lockers don't block new readers
Linus Torvalds [Wed, 24 Nov 2010 22:42:03 +0000 (07:42 +0900)]
Merge branch 'drivers' of git://git./linux/kernel/git/cmetcalf/linux-tile
* 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
pci root complex: support for tile architecture
drivers/net/tile/: on-chip network drivers for the tile architecture
MAINTAINERS: add drivers/char/hvc_tile.c as maintained by tile
Linus Torvalds [Wed, 24 Nov 2010 22:41:10 +0000 (07:41 +0900)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
ARM: 6482/2: Fix find_next_zero_bit and related assembly
ARM: 6490/1: MM: bugfix: initialize spinlock for init_mm.context
ARM: avoid annoying <4>'s in printk output
SCSI: arm fas216: fix missing ';'
ARM: avoid marking decompressor .stack section as having contents
ARM: 6489/1: thumb2: fix incorrect optimisation in usracc
ARM: 6488/1: nomadik: prevent sched_clock() wraparound
ARM: 6484/1: fix compile warning in mm/init.c
ARM: 6473/1: Small update to ux500 specific L2 cache code
ARM: improve compiler's ability to optimize page tables
mx25: fix spi device registration typo
ARM i.MX27 eukrea: Fix compilation
ARM i.MX spi: fix compilation for i.MX21
ARM i.MX pcm037 eet: compile fixes
ARM i.MX: sdma is merged, so remove #ifdef SDMA_IS_MERGED
ARM mx3fb: check for DMA engine type
mach-pcm037_eet: Fix section mismatch for eet_init_devices()
Linus Torvalds [Wed, 24 Nov 2010 21:58:56 +0000 (06:58 +0900)]
Merge branch 'fbdev-fixes-for-linus' of git://git./linux/kernel/git/lethal/fbdev-2.6
* 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6:
sisfb: delete osdef.h
sisfb: move the CONFIG warning to sis_main.c
sisfb: replace SiS_SetMemory with memset_io
sisfb: remove InPort/OutPort wrappers
sisfb: use CONFIG_FB_SIS_301/315 instead of SIS301/315H
sisfb: delete redudant #define SIS_LINUX_KERNEL
sisfb: delete dead SIS_XORG_XF86 code
sisfb: delete fallback code for pci_map_rom()
sisfb: delete obsolete PCI ROM bug workaround
fbdev: Update documentation index file.
lxfb: Program panel v/h sync output polarity correctly
fbcmap: integer overflow bug
fbcmap: cleanup white space in fb_alloc_cmap()
MAINTAINERS: Add fbdev patchwork entry, tidy up file patterns.
fbdev: da8xx: punt duplicated FBIO_WAITFORVSYNC define
fbdev: sh_mobile_lcdcfb: fix bug in reconfig()
Linus Torvalds [Wed, 24 Nov 2010 21:58:19 +0000 (06:58 +0900)]
Merge branch 'sh-fixes-for-linus' of git://git./linux/kernel/git/lethal/sh-2.6
* 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: clkfwk: Build fix for non-legacy CPG changes.
sh: Use GCC __builtin_prefetch() to implement prefetch().
sh: fix vsyscall compilation due to .eh_frame issue
sh: avoid to flush all cache in sys_cacheflush
sh: clkfwk: Disable init clk op for non-legacy clocks.
sh: clkfwk: Kill off now unused algo_id in set_rate op.
sh: clkfwk: Kill off unused clk_set_rate_ex().
Linus Torvalds [Wed, 24 Nov 2010 21:57:43 +0000 (06:57 +0900)]
Merge branch 'for-linus' of git://neil.brown.name/md
* 'for-linus' of git://neil.brown.name/md:
md: Call blk_queue_flush() to establish flush/fua support
md/raid1: really fix recovery looping when single good device fails.
md: fix return value of rdev_size_change()
Linus Torvalds [Wed, 24 Nov 2010 21:57:11 +0000 (06:57 +0900)]
Merge git://git./linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
virtio: fix format of sysfs driver/vendor files
Char: virtio_console, fix memory leak
virtio: return correct capacity to users
module: Update prototype for ref_module (formerly use_module)
Andrew Morton [Wed, 24 Nov 2010 20:57:18 +0000 (12:57 -0800)]
arch/x86/include/asm/fixmap.h: mark __set_fixmap_offset as __always_inline
When compiling arch/x86/kernel/early_printk_mrst.c with i386
allmodconfig, gcc-4.1.0 generates an out-of-line copy of
__set_fixmap_offset() which contains a reference to
__this_fixmap_does_not_exist which the compiler cannot elide.
Marking __set_fixmap_offset() as __always_inline prevents this.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Feng Tang <feng.tang@intel.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mel Gorman [Wed, 24 Nov 2010 20:57:17 +0000 (12:57 -0800)]
scripts: fix gfp-translate for recent changes to gfp.h
The recent changes to gfp.h to satisfy sparse broke scripts/gfp-translate.
This patch fixes it up to work with old and new versions of gfp.h .
[akpm@linux-foundation.org: use `grep -q', per WANG Cong]
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Cc: Namhyung Kim <namhyung@gmail.com>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Frederic Weisbecker [Wed, 24 Nov 2010 20:57:15 +0000 (12:57 -0800)]
reiserfs: fix inode mutex - reiserfs lock misordering
reiserfs_unpack() locks the inode mutex with reiserfs_mutex_lock_safe()
to protect against reiserfs lock dependency. However this protection
requires to have the reiserfs lock to be locked.
This is the case if reiserfs_unpack() is called by reiserfs_ioctl but
not from reiserfs_quota_on() when it tries to unpack tails of quota
files.
Fix the ordering of the two locks in reiserfs_unpack() to fix this
issue.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Reported-by: Markus Gapp <markus.gapp@gmx.net>
Reported-by: Jan Kara <jack@suse.cz>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: <stable@kernel.org> [2.6.36.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Uwe Kleine-König [Wed, 24 Nov 2010 20:57:14 +0000 (12:57 -0800)]
backlight: grab ops_lock before testing bd->ops
According to the comment describing ops_lock in the definition of struct
backlight_device and when comparing with other functions in backlight.c
the mutex must be hold when checking ops to be non-NULL.
Fixes a problem added by
c835ee7f4154992e6 ("backlight: Add suspend/resume
support to the backlight core") in Jan 2009.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Richard Purdie <rpurdie@linux.intel.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Axel Lin [Wed, 24 Nov 2010 20:57:14 +0000 (12:57 -0800)]
drivers/misc/isl29020.c: remove incorrect kfree in isl29020_remove()
struct als_data *data is not used in this driver at all.
Also add a missing ">" character for MODULE_AUTHOR.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Naoya Horiguchi [Wed, 24 Nov 2010 20:57:13 +0000 (12:57 -0800)]
pagemap: set pagemap walk limit to PMD boundary
Currently one pagemap_read() call walks in PAGEMAP_WALK_SIZE bytes (== 512
pages.) But there is a corner case where walk_pmd_range() accidentally
runs over a VMA associated with a hugetlbfs file.
For example, when a process has mappings to VMAs as shown below:
# cat /proc/<pid>/maps
...
3a58f6d000-
3a58f72000 rw-p
00000000 00:00 0
7fbd51853000-
7fbd51855000 rw-p
00000000 00:00 0
7fbd5186c000-
7fbd5186e000 rw-p
00000000 00:00 0
7fbd51a00000-
7fbd51c00000 rw-s
00000000 00:12 8614 /hugepages/test
then pagemap_read() goes into walk_pmd_range() path and walks in the range
0x7fbd51853000-0x7fbd51a53000, but the hugetlbfs VMA should be handled by
walk_hugetlb_range(). Otherwise PMD for the hugepage is considered bad
and cleared, which causes undesirable results.
This patch fixes it by separating pagemap walk range into one PMD.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Sterba [Wed, 24 Nov 2010 20:57:10 +0000 (12:57 -0800)]
mm: remove call to find_vma in pagewalk for non-hugetlbfs
Commit
d33b9f45 ("mm: hugetlb: fix hugepage memory leak in
walk_page_range()") introduces a check if a vma is a hugetlbfs one and
later in
5dc37642 ("mm hugetlb: add hugepage support to pagemap") it is
moved under #ifdef CONFIG_HUGETLB_PAGE but a needless find_vma call is
left behind and its result is not used anywhere else in the function.
The side-effect of caching vma for @addr inside walk->mm is neither
utilized in walk_page_range() nor in called functions.
Signed-off-by: David Sterba <dsterba@suse.cz>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Matt Mackall <mpm@selenic.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KAMEZAWA Hiroyuki [Wed, 24 Nov 2010 20:57:09 +0000 (12:57 -0800)]
mm/page_alloc.c: fix build_all_zonelist() where percpu_alloc() is wrongly called under stop_machine_run()
During memory hotplug, build_allzonelists() may be called under
stop_machine_run(). In this function, setup_zone_pageset() is called.
But it's bug because it will do page allocation under stop_machine_run().
Here is a report from Alok Kataria.
BUG: sleeping function called from invalid context at kernel/mutex.c:94
in_atomic(): 0, irqs_disabled(): 1, pid: 4, name: migration/0
Pid: 4, comm: migration/0 Not tainted 2.6.35.6-45.fc14.x86_64 #1
Call Trace:
[<
ffffffff8103d12b>] __might_sleep+0xeb/0xf0
[<
ffffffff81468245>] mutex_lock+0x24/0x50
[<
ffffffff8110eaa6>] pcpu_alloc+0x6d/0x7ee
[<
ffffffff81048888>] ? load_balance+0xbe/0x60e
[<
ffffffff8103a1b3>] ? rt_se_boosted+0x21/0x2f
[<
ffffffff8103e1cf>] ? dequeue_rt_stack+0x18b/0x1ed
[<
ffffffff8110f237>] __alloc_percpu+0x10/0x12
[<
ffffffff81465e22>] setup_zone_pageset+0x38/0xbe
[<
ffffffff810d6d81>] ? build_zonelists_node.clone.58+0x79/0x8c
[<
ffffffff81452539>] __build_all_zonelists+0x419/0x46c
[<
ffffffff8108ef01>] ? cpu_stopper_thread+0xb2/0x198
[<
ffffffff8108f075>] stop_machine_cpu_stop+0x8e/0xc5
[<
ffffffff8108efe7>] ? stop_machine_cpu_stop+0x0/0xc5
[<
ffffffff8108ef57>] cpu_stopper_thread+0x108/0x198
[<
ffffffff81467a37>] ? schedule+0x5b2/0x5cc
[<
ffffffff8108ee4f>] ? cpu_stopper_thread+0x0/0x198
[<
ffffffff81065f29>] kthread+0x7f/0x87
[<
ffffffff8100aae4>] kernel_thread_helper+0x4/0x10
[<
ffffffff81065eaa>] ? kthread+0x0/0x87
[<
ffffffff8100aae0>] ? kernel_thread_helper+0x0/0x10
Built 5 zonelists in Node order, mobility grouping on. Total pages: 289456
Policy zone: Normal
This patch tries to fix the issue by moving setup_zone_pageset() out from
stop_machine_run(). It's obviously not necessary to be called under
stop_machine_run().
[akpm@linux-foundation.org: remove unneeded local]
Reported-by: Alok Kataria <akataria@vmware.com>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Petr Vandrovec <petr@vmware.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michal Hocko [Wed, 24 Nov 2010 20:57:08 +0000 (12:57 -0800)]
cgroups: make swap accounting default behavior configurable
Swap accounting can be configured by CONFIG_CGROUP_MEM_RES_CTLR_SWAP
configuration option and then it is turned on by default. There is a boot
option (noswapaccount) which can disable this feature.
This makes it hard for distributors to enable the configuration option as
this feature leads to a bigger memory consumption and this is a no-go for
general purpose distribution kernel. On the other hand swap accounting
may be very usuful for some workloads.
This patch adds a new configuration option which controls the default
behavior (CGROUP_MEM_RES_CTLR_SWAP_ENABLED). If the option is selected
then the feature is turned on by default.
It also adds a new boot parameter swapaccount[=1|0] which enhances the
original noswapaccount parameter semantic by means of enable/disable logic
(defaults to 1 if no value is provided to be still consistent with
noswapaccount).
The default behavior is unchanged (if CONFIG_CGROUP_MEM_RES_CTLR_SWAP is
enabled then CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLED is enabled as well)
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Daisuke Nishimura [Wed, 24 Nov 2010 20:57:06 +0000 (12:57 -0800)]
memcg: avoid deadlock between move charge and try_charge()
__mem_cgroup_try_charge() can be called under down_write(&mmap_sem)(e.g.
mlock does it). This means it can cause deadlock if it races with move charge:
Ex.1)
move charge | try charge
--------------------------------------+------------------------------
mem_cgroup_can_attach() | down_write(&mmap_sem)
mc.moving_task = current | ..
mem_cgroup_precharge_mc() | __mem_cgroup_try_charge()
mem_cgroup_count_precharge() | prepare_to_wait()
down_read(&mmap_sem) | if (mc.moving_task)
-> cannot aquire the lock | -> true
| schedule()
Ex.2)
move charge | try charge
--------------------------------------+------------------------------
mem_cgroup_can_attach() |
mc.moving_task = current |
mem_cgroup_precharge_mc() |
mem_cgroup_count_precharge() |
down_read(&mmap_sem) |
.. |
up_read(&mmap_sem) |
| down_write(&mmap_sem)
mem_cgroup_move_task() | ..
mem_cgroup_move_charge() | __mem_cgroup_try_charge()
down_read(&mmap_sem) | prepare_to_wait()
-> cannot aquire the lock | if (mc.moving_task)
| -> true
| schedule()
To avoid this deadlock, we do all the move charge works (both can_attach() and
attach()) under one mmap_sem section.
And after this patch, we set/clear mc.moving_task outside mc.lock, because we
use the lock only to check mc.from/to.
Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Samu Onkalo [Wed, 24 Nov 2010 20:57:05 +0000 (12:57 -0800)]
drivers/leds/leds-lp5523.c: perform SW reset before detection
Chip detection may fail if the chip is in some odd state for example after
system restart. Chip doesn't have HW reset line.
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Samu Onkalo [Wed, 24 Nov 2010 20:57:05 +0000 (12:57 -0800)]
drivers/leds/leds-lp5521.c: perform SW reset before detection
Chip detection may fail if the chip is in some odd state for example after
system restart. Chip doesn't have HW reset line.
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Samu Onkalo [Wed, 24 Nov 2010 20:57:04 +0000 (12:57 -0800)]
drivers/leds/leds-lp5523.c: adjust delays and add comments to them
Delays were little bit too long. Adjust delay times and add some comments
to them.
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Samu Onkalo [Wed, 24 Nov 2010 20:57:03 +0000 (12:57 -0800)]
drivers/leds/leds-lp5521.c: adjust delays and add comments to them
Delays were little bit too long. Adjust delay times and add some comments
to them.
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Samu Onkalo [Wed, 24 Nov 2010 20:57:03 +0000 (12:57 -0800)]
drivers/leds/leds-lp5523.c: change some macros to functions
A small macro changed to inline function to have proper type checking.
Inline added to two similar small functions.
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Samu Onkalo [Wed, 24 Nov 2010 20:57:02 +0000 (12:57 -0800)]
drivers/leds/leds-lp5521.c: change some macros to functions
Some small macros changed to inline functions to have proper type
checking.
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ken Sumrall [Wed, 24 Nov 2010 20:57:00 +0000 (12:57 -0800)]
fuse: fix attributes after open(O_TRUNC)
The attribute cache for a file was not being cleared when a file is opened
with O_TRUNC.
If the filesystem's open operation truncates the file ("atomic_o_trunc"
feature flag is set) then the kernel should invalidate the cached st_mtime
and st_ctime attributes.
Also i_size should be explicitly be set to zero as it is used sometimes
without refreshing the cache.
Signed-off-by: Ken Sumrall <ksumrall@android.com>
Cc: Anfei <anfei.zhou@gmail.com>
Cc: "Anand V. Avati" <avati@gluster.com>
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Robin@sgi.com [Wed, 24 Nov 2010 20:56:59 +0000 (12:56 -0800)]
sgi-xpc: XPC fails to discover partitions with all nasids above 128
UV hardware defines 256 memory protection regions versus the baseline 64
with increasing size for the SN2 ia64. This was overlooked when XPC was
modified to accomodate both UV and SN2.
Without this patch, a user could reconfigure their existing system and
suddenly disable cross-partition communications with no indication of what
has gone wrong. It also prevents larger configurations from using
cross-partition communication.
Signed-off-by: Robin Holt <holt@sgi.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kirill A. Shutemov [Wed, 24 Nov 2010 20:56:58 +0000 (12:56 -0800)]
memcg: fix false positive VM_BUG on non-SMP
Fix this:
kernel BUG at mm/memcontrol.c:2155!
invalid opcode: 0000 [#1]
last sysfs file:
Pid: 18, comm: sh Not tainted 2.6.37-rc3 #3 /Bochs
EIP: 0060:[<
c10731b2>] EFLAGS:
00000246 CPU: 0
EIP is at mem_cgroup_move_account+0xe2/0xf0
EAX:
00000004 EBX:
c6f931d4 ECX:
c681c300 EDX:
c681c000
ESI:
c681c300 EDI:
ffffffea EBP:
c681c000 ESP:
c46f3e30
DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
Process sh (pid: 18, ti=
c46f2000 task=
c6826e60 task.ti=
c46f2000)
Stack:
00000155 c681c000 0805f000 c46ee180 c46f3e5c c7058820 c1074d37 00000000
08060000 c46db9a0 c46ec080 c7058820 0805f000 08060000 c46f3e98 c1074c50
c106c75e c46f3e98 c46ec080 08060000 0805ffff c46db9a0 c46f3e98 c46e0340
Call Trace:
[<
c1074d37>] ? mem_cgroup_move_charge_pte_range+0xe7/0x130
[<
c1074c50>] ? mem_cgroup_move_charge_pte_range+0x0/0x130
[<
c106c75e>] ? walk_page_range+0xee/0x1d0
[<
c10725d6>] ? mem_cgroup_move_task+0x66/0x90
[<
c1074c50>] ? mem_cgroup_move_charge_pte_range+0x0/0x130
[<
c1072570>] ? mem_cgroup_move_task+0x0/0x90
[<
c1042616>] ? cgroup_attach_task+0x136/0x200
[<
c1042878>] ? cgroup_tasks_write+0x48/0xc0
[<
c1041e9e>] ? cgroup_file_write+0xde/0x220
[<
c101398d>] ? do_page_fault+0x17d/0x3f0
[<
c108a79d>] ? alloc_fd+0x2d/0xd0
[<
c1041dc0>] ? cgroup_file_write+0x0/0x220
[<
c1077ba2>] ? vfs_write+0x92/0xc0
[<
c1077c81>] ? sys_write+0x41/0x70
[<
c1140e3d>] ? syscall_call+0x7/0xb
Code: 03 00 74 09 8b 44 24 04 e8 1c f1 ff ff 89 73 04 8d 86 b0 00 00 00 b9 01 00 00 00 89 da 31 ff e8 65 f5 ff ff e9 4d ff ff ff 0f 0b <0f> 0b 0f 0b 0f 0b 90 8d b4 26 00 00 00 00 83 ec 10 8b 0d f4 e3
EIP: [<
c10731b2>] mem_cgroup_move_account+0xe2/0xf0 SS:ESP 0068:
c46f3e30
---[ end trace
7daa1582159b6532 ]---
lock_page_cgroup and unlock_page_cgroup are implemented using
bit_spinlock. bit_spinlock doesn't touch the bit if we are on non-SMP
machine, so we can't use the bit to check whether the lock was taken.
Let's introduce is_page_cgroup_locked based on bit_spin_is_locked instead
of PageCgroupLocked to fix it.
[akpm@linux-foundation.org: s/is_page_cgroup_locked/page_is_cgroup_locked/]
Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujtisu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Will Newton [Wed, 24 Nov 2010 20:56:55 +0000 (12:56 -0800)]
uml: disable winch irq before freeing handler data
Disable the winch irq early to make sure we don't take an interrupt part
way through the freeing of the handler data, resulting in a crash on
shutdown:
winch_interrupt : read failed, errno = 9
fd 13 is losing SIGWINCH support
------------[ cut here ]------------
WARNING: at lib/list_debug.c:48 list_del+0xc6/0x100()
list_del corruption, next is LIST_POISON1 (
00100100)
082578c8: [<
081fd77f>] dump_stack+0x22/0x24
082578e0: [<
0807a18a>] warn_slowpath_common+0x5a/0x80
08257908: [<
0807a23e>] warn_slowpath_fmt+0x2e/0x30
08257920: [<
08172196>] list_del+0xc6/0x100
08257940: [<
08060244>] free_winch+0x14/0x80
08257958: [<
080606fb>] winch_interrupt+0xdb/0xe0
08257978: [<
080a65b5>] handle_IRQ_event+0x35/0xe0
08257998: [<
080a8717>] handle_edge_irq+0xb7/0x170
082579bc: [<
08059bc4>] do_IRQ+0x34/0x50
082579d4: [<
08059e1b>] sigio_handler+0x5b/0x80
082579ec: [<
0806a374>] sig_handler_common+0x44/0xb0
08257a68: [<
0806a538>] sig_handler+0x38/0x50
08257a78: [<
0806a77c>] handle_signal+0x5c/0xa0
08257a9c: [<
0806be28>] hard_handler+0x18/0x20
08257aac: [<
00c14400>] 0xc14400
Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Steven J. Magnani [Wed, 24 Nov 2010 20:56:54 +0000 (12:56 -0800)]
nommu: yield CPU while disposing VM
Depending on processor speed, page size, and the amount of memory a
process is allowed to amass, cleanup of a large VM may freeze the system
for many seconds. This can result in a watchdog timeout.
Make sure other tasks receive some service when cleaning up large VMs.
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Cc: Greg Ungerer <gerg@snapgear.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Loïc Minier [Wed, 24 Nov 2010 20:56:53 +0000 (12:56 -0800)]
include/linux/fs.h: fix userspace build
dpkg uses fiemap but didn't particularly need to include stdint.h so far.
Since
367a51a33902 ("fs: Add FITRIM ioctl"), build of linux/fs.h failed in
dpkg with:
In file included from ../../src/filesdb.c:27:0:
/usr/include/linux/fs.h:37:2: error: expected specifier-qualifier-list before 'uint64_t'
Use exportable type __u64 to avoid the dependency on stdint.h.
b31d42a5af18 ("Fix compile brekage with !CONFIG_BLOCK") fixed only the
kernel build by including linux/types.h, but this also fixed "make
headers_check", so don't revert it.
Signed-off-by: Loïc Minier <loic.minier@linaro.org>
Tested-by: Arnd Bergmann <arnd.bergmann@linaro.org>
Cc: Lukas Czerner <lczerner@redhat.com>
Cc: Dmitry Monakhov <dmonakhov@openvz.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Steven Rostedt [Wed, 24 Nov 2010 20:56:52 +0000 (12:56 -0800)]
leds: fix bug with reading NAS SS4200 dmi code
While running randconfg with ktest.pl I stumbled upon this bug:
BUG: unable to handle kernel NULL pointer dereference at
0000000000000003
IP: [<
ffffffff815fe44f>] strstr+0x39/0x86
PGD 0
Oops: 0000 [#1] SMP
last sysfs file:
CPU 0
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.37-rc1-test+ #6 DG965MQ/
RIP: 0010:[<
ffffffff815fe44f>] [<
ffffffff815fe44f>] strstr+0x39/0x86
RSP: 0018:
ffff8800797cbd80 EFLAGS:
00010213
RAX:
0000000000000000 RBX:
0000000000000003 RCX:
ffffffffffffffff
RDX:
0000000000000000 RSI:
ffffffff82eb7ac9 RDI:
0000000000000003
RBP:
ffff8800797cbda0 R08:
ffff880000000003 R09:
0000000000030725
R10:
ffff88007d294c00 R11:
0000000000014c00 R12:
0000000000000020
R13:
ffffffff82eb7ac9 R14:
ffffffffffffffff R15:
ffffffff82eb7b08
FS:
0000000000000000(0000) GS:
ffff88007d200000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
CR2:
0000000000000003 CR3:
0000000002a1d000 CR4:
00000000000006f0
DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
DR3:
0000000000000000 DR6:
00000000ffff0ff0 DR7:
0000000000000400
Process swapper (pid: 1, threadinfo
ffff8800797ca000, task
ffff8800797d0000)
Stack:
00000000000000ba ffffffff82eb7ac9 ffffffff82eb7ab8 00000000000000ba
ffff8800797cbdf0 ffffffff81e2050f ffff8800797cbdc0 00000000815f913b
ffff8800797cbe00 ffffffff82eb7ab8 0000000000000000 0000000000000000
Call Trace:
[<
ffffffff81e2050f>] dmi_matches+0x117/0x154
[<
ffffffff81e205d7>] dmi_check_system+0x3d/0x8d
[<
ffffffff82e1ad25>] ? nas_gpio_init+0x0/0x2c8
[<
ffffffff82e1ad49>] nas_gpio_init+0x24/0x2c8
[<
ffffffff820d750d>] ? wm8350_led_init+0x0/0x20
[<
ffffffff82e1ad25>] ? nas_gpio_init+0x0/0x2c8
[<
ffffffff810022f7>] do_one_initcall+0xab/0x1b2
[<
ffffffff82da749c>] kernel_init+0x248/0x331
[<
ffffffff8100e624>] kernel_thread_helper+0x4/0x10
[<
ffffffff82da7254>] ? kernel_init+0x0/0x331
Found that the nas_led_whitelist dmi_system_id structure array had no
NULL end delimiter, causing the dmi_check_system() loop to read an
undefined entry.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Dave Hansen <dave@sr71.net>
Acked-by: Richard Purdie <rpurdie@linux.intel.com>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
James Jones [Tue, 23 Nov 2010 23:21:37 +0000 (00:21 +0100)]
ARM: 6482/2: Fix find_next_zero_bit and related assembly
The find_next_bit, find_first_bit, find_next_zero_bit
and find_first_zero_bit functions were not properly
clamping to the maxbit argument at the bit level. They
were instead only checking maxbit at the byte level.
To fix this, add a compare and a conditional move
instruction to the end of the common bit-within-the-
byte code used by all the functions and be sure not to
clobber the maxbit argument before it is used.
Cc: <stable@kernel.org>
Reviewed-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: James Jones <jajones@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Chris Metcalf [Wed, 24 Nov 2010 18:57:42 +0000 (13:57 -0500)]
arch/tile: fix memchr() not to dereference memory for zero length
This change fixes a bug that memchr() will read the first word
of the source even if the length is zero. Ironically, the code
was originally written with a test to avoid exactly this problem,
but to make the code conform to Linux coding standards with all
declarations preceding all statements, the first load from memory
was moved up above that test as the initial value for a variable.
The change just moves all the variable declarations to the top
of the file, with no initializers, so that the test can also be
at the top of the file.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Chris Metcalf [Wed, 24 Nov 2010 18:42:15 +0000 (13:42 -0500)]
arch/tile: make glibc's sysconf(_SC_NPROCESSORS_CONF) work correctly
glibc assumes that it can count /sys/devices/system/cpu/cpu* to get
the number of configured cpus. For this to be valid on tile, we need
to generate a "cpu" entry for all cpus, including the ones that are
not currently allocated for Linux's use.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Chris Metcalf [Wed, 24 Nov 2010 18:30:28 +0000 (13:30 -0500)]
Merge branch 'master' into for-linus
Chris Metcalf [Tue, 2 Nov 2010 16:05:10 +0000 (12:05 -0400)]
pci root complex: support for tile architecture
This change enables PCI root complex support for TILEPro. Unlike
TILE-Gx, TILEPro has no support for memory-mapped I/O, so the PCI
support consists of hypervisor upcalls for PIO, DMA, etc. However,
the performance is fine for the devices we have tested with so far
(1Gb Ethernet, SATA, etc.).
The <asm/io.h> header was tweaked to be a little bit more aggressive
about disabling attempts to map/unmap IO port space. The hacky
<asm/pci-bridge.h> header was rolled into the <asm/pci.h> header
and the result was simplified. Both of the latter two headers were
preliminary versions not meant for release before now - oh well.
There is one quirk for our TILEmpower platform, which accidentally
negotiates up to 5GT and needs to be kicked down to 2.5GT.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / log