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2009-11-03Linux 2.6.32-rc6v2.6.32-rc6Linus Torvalds
2009-11-03Merge branch 'for-linus' of git://github.com/at91linux/linux-2.6-at91Linus Torvalds
* 'for-linus' of git://github.com/at91linux/linux-2.6-at91: at91: at91sam9g45 family: identify several chip versions avr32: add two new at91 to cpu.h definition
2009-11-03at91: at91sam9g45 family: identify several chip versionsNicolas Ferre
cpu_is_xxx() macros are identifying generic at91sam9g45 chip. This patch adds the capacity to differentiate Engineering Samples and final lots through the inclusion of at91_cpu_fully_identify() and the related chip IDs with chip version field preserved. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
2009-11-03avr32: add two new at91 to cpu.h definitionNicolas Ferre
Somme common drivers will need those at91 cpu_is_xxx() definitions. As at91sam9g10 and at91sam9g45 are on the way to linus' tree, here is the patch that adds those chips to cpu.h in AVR32 architecture. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-11-03Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (38 commits) MIPS: O32: Fix ppoll MIPS: Oprofile: Rename cpu_type from godson2 to loongson2 MIPS: Alchemy: Fix hang with high-frequency edge interrupts MIPS: TXx9: Fix spi-baseclk value MIPS: bcm63xx: Set the correct BCM3302 CPU name MIPS: Loongson 2: Set cpu_has_dc_aliases and cpu_icache_snoops_remote_store MIPS: Avoid potential hazard on Context register MIPS: Octeon: Use lockless interrupt controller operations when possible. MIPS: Octeon: Use write_{un,}lock_irq{restore,save} to set irq affinity MIPS: Set S-cache linesize to 64-bytes for MTI's S-cache MIPS: SMTC: Avoid queing multiple reschedule IPIs MIPS: GCMP: Avoid accessing registers when they are not present MIPS: GIC: Random fixes and enhancements. MIPS: CMP: Fix memory barriers for correct operation of amon_cpu_start MIPS: Fix abs.[sd] and neg.[sd] emulation for NaN operands MIPS: SPRAM: Clean up support code a little MIPS: 1004K: Enable SPRAM support. MIPS: Malta: Enable PCI 2.1 compatibility in PIIX4 MIPS: Kconfig: Fix duplicate default value for MIPS_L1_CACHE_SHIFT. MIPS: MTI: Fix accesses to device registers on MIPS boards ...
2009-11-03Merge branch 'pm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM: Remove some debug messages producing too much noise PM: Fix warning on suspend errors PM / Hibernate: Add newline to load_image() fail path PM / Hibernate: Fix error handling in save_image() PM / Hibernate: Fix blkdev refleaks PM / yenta: Split resume into early and late parts (rev. 4)
2009-11-03Correct nr_processes() when CPUs have been unpluggedIan Campbell
nr_processes() returns the sum of the per cpu counter process_counts for all online CPUs. This counter is incremented for the current CPU on fork() and decremented for the current CPU on exit(). Since a process does not necessarily fork and exit on the same CPU the process_count for an individual CPU can be either positive or negative and effectively has no meaning in isolation. Therefore calculating the sum of process_counts over only the online CPUs omits the processes which were started or stopped on any CPU which has since been unplugged. Only the sum of process_counts across all possible CPUs has meaning. The only caller of nr_processes() is proc_root_getattr() which calculates the number of links to /proc as stat->nlink = proc_root.nlink + nr_processes(); You don't have to be all that unlucky for the nr_processes() to return a negative value leading to a negative number of links (or rather, an apparently enormous number of links). If this happens then you can get failures where things like "ls /proc" start to fail because they got an -EOVERFLOW from some stat() call. Example with some debugging inserted to show what goes on: # ps haux|wc -l nr_processes: CPU0: 90 nr_processes: CPU1: 1030 nr_processes: CPU2: -900 nr_processes: CPU3: -136 nr_processes: TOTAL: 84 proc_root_getattr. nlink 12 + nr_processes() 84 = 96 84 # echo 0 >/sys/devices/system/cpu/cpu1/online # ps haux|wc -l nr_processes: CPU0: 85 nr_processes: CPU2: -901 nr_processes: CPU3: -137 nr_processes: TOTAL: -953 proc_root_getattr. nlink 12 + nr_processes() -953 = -941 75 # stat /proc/ nr_processes: CPU0: 84 nr_processes: CPU2: -901 nr_processes: CPU3: -137 nr_processes: TOTAL: -954 proc_root_getattr. nlink 12 + nr_processes() -954 = -942 File: `/proc/' Size: 0 Blocks: 0 IO Block: 1024 directory Device: 3h/3d Inode: 1 Links: 4294966354 Access: (0555/dr-xr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2009-11-03 09:06:55.000000000 +0000 Modify: 2009-11-03 09:06:55.000000000 +0000 Change: 2009-11-03 09:06:55.000000000 +0000 I'm not 100% convinced that the per_cpu regions remain valid for offline CPUs, although my testing suggests that they do. If not then I think the correct solution would be to aggregate the process_count for a given CPU into a global base value in cpu_down(). This bug appears to pre-date the transition to git and it looks like it may even have been present in linux-2.6.0-test7-bk3 since it looks like the code Rusty patched in http://lwn.net/Articles/64773/ was already wrong. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-11-03Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: gpio-keys - use IRQF_SHARED Input: winbond-cir - select LEDS_TRIGGERS Input: i8042 - try to get stable CTR value when initializing Input: atkbd - add a quirk for OQO 01+ multimedia keys
2009-11-03Merge branch 'fixes-s3c-2632-rc5' of git://git.fluff.org/bjdooks/linuxLinus Torvalds
* 'fixes-s3c-2632-rc5' of git://git.fluff.org/bjdooks/linux: ARM: S3C2410: Fix sparse warnings in arch/arm/mach-s3c2410/gpio.c ARM: S3C2440: mini2440: Fix spare warnings ARM: S3C24XX: Fix warnings in arch/arm/plat-s3c24xx/gpio.c ARM: S3C2440: mini2440: Fix missing CONFIG_S3C_DEV_USB_HOST ARM: S3C24XX: arch/arm/plat-s3c24xx: Move dereference after NULL test ARM: S3C: Fix adc function exports ARM: S3C2410: Fix link if CONFIG_S3C2410_IOTIMING is not set ARM: S3C24XX: Introduce S3C2442B CPU ARM: S3C24XX: Define a macro to avoid compilation error ARM: S3C: Add info for supporting circular DMA buffers ARM: S3C64XX: Set rate of crystal mux ARM: S3C64XX: Fix S3C64XX_CLKDIV0_ARM_MASK value
2009-11-03Merge branch 'i2c-fixes' of git://git.fluff.org/bjdooks/linuxLinus Torvalds
* 'i2c-fixes' of git://git.fluff.org/bjdooks/linux: i2c-mpc: Do not generate STOP after read. i2c: imx: disable clock when it's possible to save power. i2c: imx: only imx1 needs disable delay i2c: imx: check busy bit when START/STOP
2009-11-03Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2: nilfs2: add zero-fill for new btree node buffers nilfs2: fix irregular checkpoint creation due to data flush nilfs2: fix dirty page accounting leak causing hang at write
2009-11-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits) mac80211: check interface is down before type change cfg80211: fix NULL ptr deref libertas if_usb: Fix crash on 64-bit machines mac80211: fix reason code output endianness mac80211: fix addba timer ath9k: fix misplaced semicolon on rate control b43: Fix DMA TX bounce buffer copying mac80211: fix BSS leak rt73usb.c : more ids ipw2200: fix oops on missing firmware gre: Fix dev_addr clobbering for gretap sky2: set carrier off in probe net: fix sk_forward_alloc corruption pcnet_cs: add cis of PreMax PE-200 ethernet pcmcia card r8169: Fix card drop incoming VLAN tagged MTU byte large jumbo frames ibmtr: possible Read buffer overflow? net: Fix RPF to work with policy routing net: fix kmemcheck annotations e1000e: rework disable K1 at 1000Mbps for 82577/82578 e1000e: config PHY via software after resets ...
2009-11-03PM: Remove some debug messages producing too much noisePavel Machek
pm_runtime_idle() is somewhat noisy. Remove debug prints. Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-11-03PM: Fix warning on suspend errorsRomit Dasgupta
Fixes the point where we need to complete the power transition when device suspend fails, so that we don't print warnings about devices added to the device hierarchy after a failing suspend. [rjw: Modified changelog.] Signed-off-by: Romit Dasgupta <romit@ti.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-11-03PM / Hibernate: Add newline to load_image() fail pathJiri Slaby
Finish a line by \n when load_image fails in the middle of loading. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-11-03PM / Hibernate: Fix error handling in save_image()Jiri Slaby
There are too many retval variables in save_image(). Thus error return value from snapshot_read_next() may be ignored and only part of the snapshot (successfully) written. Remove 'error' variable, invert the condition in the do-while loop and convert the loop to use only 'ret' variable. Switch the rest of the function to consider only 'ret'. Also make sure we end printed line by \n if an error occurs. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-11-03PM / Hibernate: Fix blkdev refleaksJiri Slaby
While cruising through the swsusp code I found few blkdev reference leaks of resume_bdev. swsusp_read: remove blkdev_put altogether. Some fail paths do not do that. swsusp_check: make sure we always put a reference on fail paths software_resume: all fail paths between swsusp_check and swsusp_read omit swsusp_close. Add it in those cases. And since swsusp_read doesn't drop the reference anymore, do it here unconditionally. [rjw: Fixed a small coding style issue.] Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-11-03PM / yenta: Split resume into early and late parts (rev. 4)Rafael J. Wysocki
Commit 0c570cdeb8fdfcb354a3e9cd81bfc6a09c19de0c (PM / yenta: Fix cardbus suspend/resume regression) caused resume to fail on systems with two CardBus bridges. While the exact nature of the failure is not known at the moment, it can be worked around by splitting the yenta resume into an early part, executed during the early phase of resume, that will only resume the socket and power it up if there was a card in it during suspend, and a late part, executed during "regular" resume, that will carry out all of the remaining yenta resume operations. Fixes http://bugzilla.kernel.org/show_bug.cgi?id=14334, which is a listed regression from 2.6.31. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> Reported-by: Stephen J. Gowdy <gowdy@cern.ch> Tested-by: Jose Marino <braket@hotmail.com>
2009-11-02Input: gpio-keys - use IRQF_SHAREDDmitry Eremin-Solenikov
There is nothing that disallows gpio-keys to share it's IRQ line w/ other drivers. Make it use IRQF_SHARED in request_irq(). An example of other driver with which I'd like to share IRQ line for GPIO buttons is ledtrig-gpio. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-11-02Input: winbond-cir - select LEDS_TRIGGERSDavid Härdeman
drivers/input/misc/winbond-cir.c depends on LEDS_TRIGGERS so add an appropriate select to drivers/input/misc/Kconfig Signed-off-by: David Härdeman <david@hardeman.nu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-11-02Input: i8042 - try to get stable CTR value when initializingDmitry Torokhov
If user presses keys while i8042 is being initialized there is a chance that keyboard data will be mistaken for results of Read Control Register command causing futher troubles. Work around this issue by reading CTR several times and stop when we get matching results. Reported-and-tested-by: Dave Young <hidave.darkstar@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-11-02Merge commit 'v2.6.32-rc5' into for-linusDmitry Torokhov
2009-11-03nilfs2: add zero-fill for new btree node buffersRyusuke Konishi
Adds missing initialization of newly allocated b-tree node buffers. This avoids garbage data to be mixed in b-tree node blocks. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
2009-11-03nilfs2: fix irregular checkpoint creation due to data flushRyusuke Konishi
When nilfs flushes out dirty data to reduce memory pressure, creation of checkpoints is wrongly postponed. This bug causes irregular checkpoint creation especially in small footprint systems. To correct this issue, a timer for the checkpoint creation has to be continued if a log writer does not create a checkpoint. This will do the correction. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
2009-11-03nilfs2: fix dirty page accounting leak causing hang at writeRyusuke Konishi
Bruno Prémont and Dunphy, Bill noticed me that NILFS will certainly hang on ARM-based targets. I found this was caused by an underflow of dirty pages counter. A b-tree cache routine was marking page dirty without adjusting page account information. This fixes the dirty page accounting leak and resolves the hang on arm-based targets. Reported-by: Bruno Prémont <bonbons@linux-vserver.org> Reported-by: Dunphy, Bill <WDunphy@tandbergdata.com> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Tested-by: Bruno Prémont <bonbons@linux-vserver.org> Cc: stable <stable@kernel.org>
2009-11-02Merge branch 'master' of ↵David S. Miller
2009-11-02i2c-mpc: Do not generate STOP after read.Joakim Tjernlund
The driver always ends a read with a STOP condition which breaks subsequent I2C reads/writes in the same transaction as these expect to do a repeated START(ReSTART). This will also help I2C multimaster as the bus will not be released after the first read, but when the whole transaction ends. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-02i2c: imx: disable clock when it's possible to save power.Richard Zhao
Enable clock before START, disable it after STOP. Signed-off-by: Richard Zhao <linuxzsc@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-02i2c: imx: only imx1 needs disable delayRichard Zhao
check cpu_is_mx1() when disable delay. Signed-off-by: Richard Zhao <linuxzsc@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-02i2c: imx: check busy bit when START/STOPRichard Zhao
The controller can't do anything else before it actually generates START/STOP. So we check busy bit to make sure START/STOP is successfully finished. If we don't check busy bit, START/STOP may fail on some fast CPUs. Signed-off-by: Richard Zhao <linuxzsc@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-02Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: fix readdir corner cases 9p: fix readlink 9p: fix a small bug in readdir for long directories
2009-11-02mac80211: check interface is down before type changeJohannes Berg
For some strange reason the netif_running() check ended up after the actual type change instead of before, potentially causing all kinds of problems if the interface is up while changing the type; one of the problems manifests itself as a warning: WARNING: at net/mac80211/iface.c:651 ieee80211_teardown_sdata+0xda/0x1a0 [mac80211]() Hardware name: Aspire one Pid: 2596, comm: wpa_supplicant Tainted: G W 2.6.31-10-generic #32-Ubuntu Call Trace: [] warn_slowpath_common+0x6d/0xa0 [] warn_slowpath_null+0x15/0x20 [] ieee80211_teardown_sdata+0xda/0x1a0 [mac80211] [] ieee80211_if_change_type+0x4a/0xc0 [mac80211] [] ieee80211_change_iface+0x61/0xa0 [mac80211] [] cfg80211_wext_siwmode+0xc7/0x120 [cfg80211] [] ioctl_standard_call+0x58/0xf0 (http://www.kerneloops.org/searchweek.php?search=ieee80211_teardown_sdata) Cc: Arjan van de Ven <arjan@infradead.org> Cc: stable@kernel.org Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-02cfg80211: fix NULL ptr derefJohannes Berg
commit 211a4d12abf86fe0df4cd68fc6327cbb58f56f81 Author: Johannes Berg <johannes@sipsolutions.net> Date: Tue Oct 20 15:08:53 2009 +0900 cfg80211: sme: deauthenticate on assoc failure introduced a potential NULL pointer dereference that some people have been hitting for some reason -- the params.bssid pointer is not guaranteed to be non-NULL for what seems to be a race between various ways of reaching the same thing. While I'm trying to analyse the problem more let's first fix the crash. I think the real fix may be to avoid doing _anything_ if it ended up being NULL, but right now I'm not sure yet. I think http://bugzilla.kernel.org/show_bug.cgi?id=14342 might also be this issue. Reported-by: Parag Warudkar <parag.lkml@gmail.com> Tested-by: Parag Warudkar <parag.lkml@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-02Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: Revert "[IA64] fix percpu warnings" [IA64] fix percpu warnings [IA64] SMT friendly version of spin_unlock_wait() [IA64] use printk_once() unaligned.c/io_common.c [IA64] Require SAL 3.2 in order to do extended config space ops [IA64] unsigned cannot be less than 0 in sn_hwperf_ioctl() [IA64] Restore registers in the stack on INIT [IA64] Re-implement spinaphores using ticket lock concepts [IA64] Squeeze ticket locks back into 4 bytes.
2009-11-02Revert "ext4: Remove journal_checksum mount option and enable it by default"Linus Torvalds
This reverts commit d0646f7b636d067d715fab52a2ba9c6f0f46b0d7, as requested by Eric Sandeen. It can basically cause an ext4 filesystem to miss recovery (and thus get mounted with errors) if the journal checksum does not match. Quoth Eric: "My hand-wavy hunch about what is happening is that we're finding a bad checksum on the last partially-written transaction, which is not surprising, but if we have a wrapped log and we're doing the initial scan for head/tail, and we abort scanning on that bad checksum, then we are essentially running an unrecovered filesystem. But that's hand-wavy and I need to go look at the code. We lived without journal checksums on by default until now, and at this point they're doing more harm than good, so we should revert the default-changing commit until we can fix it and do some good power-fail testing with the fixes in place." See http://bugzilla.kernel.org/show_bug.cgi?id=14354 for all the gory details. Requested-by: Eric Sandeen <sandeen@redhat.com> Cc: Theodore Tso <tytso@mit.edu> Cc: Alexey Fisher <bug-track@fisher-privat.net> Cc: Maxim Levitsky <maximlevitsky@gmail.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Mathias Burén <mathias.buren@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-11-02Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: ARM: ensure initial page tables are setup for SMP systems ARM: 5776/1: Check compiler version and EABI support when adding ARM unwind support. ARM: 5774/1: Fix Realview ARM1176PB board reboot ARM: Fix errata 411920 workarounds ARM: Fix sparsemem with SPARSEMEM_EXTREME enabled ARM: Use GFP_DMA only for masks _less_ than 32-bit ARM: integrator: allow Integrator to be built with highmem ARM: Fix signal restart issues with NX and OABI compat
2009-11-02Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - Don't check invalid HP pin ALSA: dummy - Fix descriptions of pcm_substreams parameter ALSA: pcmcia: use dynamic debug infrastructure, deprecate CS_CHECK (sound) ALSA: hda: Use quirk mask for Dell Inspiron Mini9/Vostro A90 using ALC268 sound: via82xx: deactivate DXS controls of inactive streams ALSA: snd-usb-caiaq: Bump version number to 1.3.20 ALSA: snd-usb-caiaq: Lock on stream start/unpause ALSA: snd-usb-caiaq: Missing lock around use of buffer positions ALSA: sound/parisc: Move dereference after NULL test ALSA: sound: Move dereference after NULL test and drop unnecessary NULL tests ALSA: hda_intel: Add the Linux device ID for NVIDIA HDA controller ALSA: pcsp - Fix nforce workaround ALSA: SND_CS5535AUDIO: Remove the X86 platform dependency ASoC: Amstrad Delta: add info about the line discipline requirement to Kconfig help text ASoC: Fix possible codec_dai->ops NULL pointer problems ALSA: hda - Fix capture source checks for ALC662/663 codecs ASoC: Serialize access to dapm_power_widgets()
2009-11-02Merge branch 'core-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/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: futex: Fix spurious wakeup for requeue_pi really
2009-11-02Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/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 tools: Remove -Wcast-align perf tools: Fix compatibility with libelf 0.8 and autodetect perf events: Don't generate events for the idle task when exclude_idle is set perf events: Fix swevent hrtimer sampling by keeping track of remaining time when enabling/disabling swevent hrtimers
2009-11-02Merge branch 'tracing-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing: Remove cpu arg from the rb_time_stamp() function tracing: Fix comment typo and documentation example tracing: Fix trace_seq_printf() return value tracing: Update *ppos instead of filp->f_pos
2009-11-02Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/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: Make EFI RTC function depend on 32bit again x86-64: Fix register leak in 32-bit syscall audting x86: crash_dump: Fix non-pae kdump kernel memory accesses x86: Side-step lguest problem by only building cmpxchg8b_emu for pre-Pentium x86: Remove STACKPROTECTOR_ALL
2009-11-02mm: remove incorrect swap_count() from try_to_unuse()Bo Liu
In try_to_unuse(), swcount is a local copy of *swap_map, including the SWAP_HAS_CACHE bit; but a wrong comparison against swap_count(*swap_map), which masks off the SWAP_HAS_CACHE bit, succeeded where it should fail. That had the effect of resetting the mm from which to start searching for the next swap page, to an irrelevant mm instead of to an mm in which this swap page had been found: which may increase search time by ~20%. But we're used to swapoff being slow, so never noticed the slowdown. Remove that one spurious use of swap_count(): Bo Liu thought it merely redundant, Hugh rewrote the description since it was measurably wrong. Signed-off-by: Bo Liu <bo-liu@hotmail.com> Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-11-02i915: fix intel graphics suspend breakage due to resume/lid event confusionLinus Torvalds
In commit c1c7af60892070e4b82ad63bbfb95ae745056de0 ("drm/i915: force mode set at lid open time") the intel graphics driver was taught to restore the LVDS mode on lid open. That caused problems with interaction with the suspend/resume code, which commonly runs at the same time (suspend is often caused by the lid close event, while lid open is commonly a resume event), which was worked around with in commit 06891e27a9b5dba5268bb80e41a283f51335afe7 ("drm/i915: fix suspend/resume breakage in lid notifier"). However, in the meantime the lid event code had also grown a user event notifier (commit 06324194eee97a51b5f172270df49ec39192d6cc: "drm/i915: generate a KMS uevent at lid open/close time"), and now _that_ causes problems with suspend/resume and some versions of Xorg reacting to those uevents by setting the mode. So this effectively reverts that commit 06324194ee, and makes the lid open protection logic against suspend/resume more explicit. This fixes at least one laptop. See http://bugzilla.kernel.org/show_bug.cgi?id=14484 for more details. Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com> Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-11-02Revert "[IA64] fix percpu warnings"Tony Luck
This reverts commit b94b08081fcecf83fa690d6c5664f6316fe72208. genksyms currently cannot handle complicated types for exported percpu variables. Drop this patch for now as it prevents a module from being loaded on sn2 systems: xpc: no symbol version for per_cpu____sn_cnodeid_to_nasid xpc: Unknown symbol per_cpu____sn_cnodeid_to_nasid Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-11-02ARM: ensure initial page tables are setup for SMP systemsRussell King
Mapping the same memory using two different attributes (memory type, shareability, cacheability) is unpredictable. During boot, we encounter a situation when we're updating the kernel's page tables which can lead to dirty cache lines existing in the cache which are subsequently missed. This causes stack corruption, and therefore a crash. Therefore, ensure that the shared and cacheability settings matches the configuration that will be used later; this together with the restriction in early_cachepolicy() ensures that we won't create a mismatch during boot. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-11-02ARM: 5776/1: Check compiler version and EABI support when adding ARM unwind ↵Claudio Scordino
support. ARM unwind is known to compile only with EABI and not-buggy compilers. The problem is not the unwinding information but the -fno-frame-pointer option added as a result of !CONFIG_FRAME_POINTER. Now we check the compiler and raise a #warning in case of wrong compiler. Signed-off-by: Claudio Scordino <claudio@evidence.eu.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-11-02Merge branch 'fix/hda' into for-linusTakashi Iwai
2009-11-02Merge branch 'fix/asoc' into for-linusTakashi Iwai
2009-11-029p: fix readdir corner casesEric Van Hensbergen
The patch below also addresses a couple of other corner cases in readdir seen with a large (e.g. 64k) msize. I'm not sure what people think of my co-opting of fid->aux here. I'd be happy to rework if there's a better way. When the size of the user supplied buffer passed to readdir is smaller than the data returned in one go by the 9P read request, v9fs_dir_readdir() currently discards extra data so that, on the next call, a 9P read request will be issued with offset < previous offset + bytes returned, which voilates the constraint described in paragraph 3 of read(5) description. This patch preseves the leftover data in fid->aux for use in the next call. Signed-off-by: Jim Garlick <garlick@llnl.gov> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2009-11-029p: fix readlinkMartin Stava
I do not know if you've looked on the patch, but unfortunately it is incorrect. A suggested better version is in this email (the old version didn't work in case the user provided buffer was not long enough - it incorrectly appended null byte on a position of last char, and thus broke the contract of the readlink method). However, I'm still not sure this is 100% correct thing to do, I think readlink is supposed to return buffer without last null byte in all cases, but we do return last null byte (even the old version).. on the other hand it is likely unspecified what is in the remaining part of the buffer, so null character may be fine there ;): Signed-off-by: Martin Stava <martin.stava@gmail.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>