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2011-05-25hwmon: (sch5627) Add sch5627_send_cmd functionHans de Goede
This patch generalizes sch5627_read_virtual_reg so that it can be used to write virtual regs too. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Sigend-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-25i8k: Integrate with the hwmon subsystemJean Delvare
Let i8k create an hwmon class device so that libsensors will expose the CPU temperature and fan speeds to monitoring applications. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Massimo Dal Zotto <dz@debian.org>
2011-05-25hwmon: (max6650) Properly support the MAX6650Jean Delvare
The MAX6650 has only one fan input. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: "Hans J. Koch" <hjk@hansjkoch.de> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-25hwmon: (max6650) Drop device detectionJean Delvare
MAX6650 device detection is unreliable, we got reports of false positives. We now have many ways to let users instantiate the devices explicitly, so unreliable detection should be dropped. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: "Hans J. Koch" <hjk@hansjkoch.de> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-25Move ACPI power meter driver to hwmonJean Delvare
As discussed earlier, the ACPI power meter driver would better live in drivers/hwmon, as its only purpose is to create hwmon-style interfaces for ACPI 4.0 power meter devices. Users are more likely to look for it there, and less likely to accidentally hide it by unselecting its dependencies. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: "Darrick J. Wong" <djwong@us.ibm.com> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> Cc: Len Brown <lenb@kernel.org>
2011-05-25hwmon: (f71882fg) Add support for F71808AHans de Goede
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-25hwmon: (f71882fg) Split has_beep in fan_has_beep and temp_has_beepHans de Goede
Needed for upcoming support of the F71808A. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-25hwmon: (asc7621) Drop duplicate dependencyJean Delvare
The config SENSORS_ASC7621 entry is inside an if HWMON / endif block, so it already depends on HWMON. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-25hwmon: (jc42) Change detection classJean Delvare
While the JC42-compatible chips are temperature sensors, I2C_CLASS_SPD makes more sense because these chips always live on memory modules. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-25hwmon: Add driver for AMD family 15h processor power informationAndreas Herrmann
This CPU family provides NB register values to gather following TDP information * ProcessorPwrWatts: Specifies in Watts the maximum amount of power the processor can support. * CurrPwrWatts: Specifies in Watts the current amount of power being consumed by the processor. This driver provides * power1_crit (ProcessorPwrWatts) * power1_input (CurrPwrWatts) Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-25hwmon: (k10temp) Add support for Fam15h (Bulldozer)Andre Przywara
AMDs upcoming CPUs use the same mechanism for the internal temperature reporting as the Fam10h CPUs, so we just needed to add the appropriate PCI-ID to the list. This allows to use the k10temp driver on those CPUs. While at it change the Kconfig entry to be more generic. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-25hwmon: Use helper functions to set and get driver dataJean Delvare
Use helper functions to set and get driver data. This is more elegant. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Andreas Herrmann <andreas.herrmann3@amd.com> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-25i8k: Avoid lahf in 64-bit codeLuca Tettamanti
i8k uses lahf to read the flag register in 64-bit code; early x86-64 CPUs, however, lack this instruction and we get an invalid opcode exception at runtime. Use pushf to load the flag register into the stack instead. Signed-off-by: Luca Tettamanti <kronos.it@gmail.com> Reported-by: Jeff Rickman <jrickman@myamigos.us> Tested-by: Jeff Rickman <jrickman@myamigos.us> Tested-by: Harry G McGavran Jr <w5pny@arrl.net> Cc: stable@kernel.org Cc: Massimo Dal Zotto <dz@debian.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-25Merge branch 'for-davem' of ↵David S. Miller
ssh://master.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
2011-05-25signal: sys_pause() should check signal_pending()Oleg Nesterov
ERESTART* is always wrong without TIF_SIGPENDING. Teach sys_pause() to handle the spurious wakeup correctly. Signed-off-by: Oleg Nesterov <oleg@redhat.com>
2011-05-25Squashfs: add extra sanity checks at mount timePhillip Lougher
Add some extra sanity checks of the inode and directory structures. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2011-05-25Squashfs: add sanity checks to fragment reading at mount timePhillip Lougher
Fsfuzzer generates corrupted filesystems which throw a warn_on in kmalloc. One of these is due to a corrupted superblock fragments field. Fix this by checking that the number of bytes to be read (and allocated) does not extend into the next filesystem structure. Also add a couple of other sanity checks of the mount-time fragment table structures. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2011-05-25Squashfs: add sanity checks to lookup table reading at mount timePhillip Lougher
Fsfuzzer generates corrupted filesystems which throw a warn_on in kmalloc. One of these is due to a corrupted superblock inodes field. Fix this by checking that the number of bytes to be read (and allocated) does not extend into the next filesystem structure. Also add a couple of other sanity checks of the mount-time lookup table structures. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2011-05-25Squashfs: add sanity checks to id reading at mount timePhillip Lougher
Fsfuzzer generates corrupted filesystems which throw a warn_on in kmalloc. One of these is due to a corrupted superblock no_ids field. Fix this by checking that the number of bytes to be read (and allocated) does not extend into the next filesystem structure. Also add a couple of other sanity checks of the mount-time id table structures. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2011-05-25Squashfs: add sanity checks to xattr reading at mount timePhillip Lougher
These checks add sanity checking of the mount-time xattr structures. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2011-05-25Squashfs: reverse order of filesystem table readingPhillip Lougher
Reverse order of table reading from mostly first to last in placement order, to last to first. This is to enable extra superblock sanity checks to be added in later patches. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2011-05-25Squashfs: move table allocation into squashfs_read_table()Phillip Lougher
This eliminates a lot of duplicate code. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2011-05-25ptrace: ptrace_resume() shouldn't wake up !TASK_TRACED threadOleg Nesterov
It is not clear why ptrace_resume() does wake_up_process(). Unless the caller is PTRACE_KILL the tracee should be TASK_TRACED so we can use wake_up_state(__TASK_TRACED). If sys_ptrace() races with SIGKILL we do not need the extra and potentionally spurious wakeup. If the caller is PTRACE_KILL, wake_up_process() is even more wrong. The tracee can sleep in any state in any place, and if we have a buggy code which doesn't handle a spurious wakeup correctly PTRACE_KILL can be used to exploit it. For example: int main(void) { int child, status; child = fork(); if (!child) { int ret; assert(ptrace(PTRACE_TRACEME, 0,0,0) == 0); ret = pause(); printf("pause: %d %m\n", ret); return 0x23; } sleep(1); assert(ptrace(PTRACE_KILL, child, 0,0) == 0); assert(child == wait(&status)); printf("wait: %x\n", status); return 0; } prints "pause: -1 Unknown error 514", -ERESTARTNOHAND leaks to the userland. In this case sys_pause() is buggy as well and should be fixed. I do not know what was the original rationality behind PTRACE_KILL. The man page is simply wrong and afaics it was always wrong. Imho it should be deprecated, or may be it should do send_sig(SIGKILL) as Denys suggests, but in any case I do not think that the current behaviour was intentional. Note: there is another problem, ptrace_resume() changes ->exit_code and this can race with SIGKILL too. Eventually we should change ptrace to not use ->exit_code. Signed-off-by: Oleg Nesterov <oleg@redhat.com>
2011-05-25Merge 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: update Documentation pointers net/9p: enable 9p to work in non-default network namespace net/9p: p9_idpool_get return -1 on error fs/9p: Don't clunk dentry fid when we fail to get a writeback inode 9p: Small cleanup in <net/9p/9p.h> 9p: remove experimental tag from tested configurations 9p: typo fixes and minor cleanups net/9p: Change linuxdoc names to match functions.
2011-05-25Merge branch 'for-2.6.40/splice' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-2.6.40/splice' of git://git.kernel.dk/linux-2.6-block: splice: add wakeup_pipe_readers()
2011-05-25Merge branch 'for-2.6.40/drivers' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-2.6.40/drivers' of git://git.kernel.dk/linux-2.6-block: (110 commits) loop: handle on-demand devices correctly loop: limit 'max_part' module param to DISK_MAX_PARTS drbd: fix warning drbd: fix warning drbd: Fix spelling drbd: fix schedule in atomic drbd: Take a more conservative approach when deciding max_bio_size drbd: Fixed state transitions after async outdate-peer-handler returned drbd: Disallow the peer_disk_state to be D_OUTDATED while connected drbd: Fix for the connection problems on high latency links drbd: fix potential activity log refcount imbalance in error path drbd: Only downgrade the disk state in case of disk failures drbd: fix disconnect/reconnect loop, if ping-timeout == ping-int drbd: fix potential distributed deadlock lru_cache.h: fix comments referring to ts_ instead of lc_ drbd: Fix for application IO with the on-io-error=pass-on policy xen/p2m: Add EXPORT_SYMBOL_GPL to the M2P override functions. xen/p2m/m2p/gnttab: Support GNTMAP_host_map in the M2P override. xen/blkback: don't fail empty barrier requests xen/blkback: fix xenbus_transaction_start() hang caused by double xenbus_transaction_end() ...
2011-05-25Merge branch 'for-2.6.40/core' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-2.6.40/core' of git://git.kernel.dk/linux-2.6-block: (40 commits) cfq-iosched: free cic_index if cfqd allocation fails cfq-iosched: remove unused 'group_changed' in cfq_service_tree_add() cfq-iosched: reduce bit operations in cfq_choose_req() cfq-iosched: algebraic simplification in cfq_prio_to_maxrq() blk-cgroup: Initialize ioc->cgroup_changed at ioc creation time block: move bd_set_size() above rescan_partitions() in __blkdev_get() block: call elv_bio_merged() when merged cfq-iosched: Make IO merge related stats per cpu cfq-iosched: Fix a memory leak of per cpu stats for root group backing-dev: Kill set but not used var in bdi_debug_stats_show() block: get rid of on-stack plugging debug checks blk-throttle: Make no throttling rule group processing lockless blk-cgroup: Make cgroup stat reset path blkg->lock free for dispatch stats blk-cgroup: Make 64bit per cpu stats safe on 32bit arch blk-throttle: Make dispatch stats per cpu blk-throttle: Free up a group only after one rcu grace period blk-throttle: Use helper function to add root throtl group to lists blk-throttle: Introduce a helper function to fill in device details blk-throttle: Dynamically allocate root group blk-cgroup: Allow sleeping while dynamically allocating a group ...
2011-05-25Merge branch 'timers-ptp-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-ptp-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: ptp: Fix dp83640 build warning when building statically ptp: Added a clock driver for the National Semiconductor PHYTER. ptp: Added a clock driver for the IXP46x. ptp: Added a clock that uses the eTSEC found on the MPC85xx. ptp: Added a brand new class driver for ptp clocks.
2011-05-25Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/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-timers: RCU conversion
2011-05-25xfs: correctly decrement the extent buffer index in xfs_bmap_del_extentChristoph Hellwig
The code in xfs_bmap_del_extent does not correctly decrement the extent buffer index when deleting a whole extent. Most of the time this gets caught by checks in xfs_bmapi that work around it and decrement it manually and thus wasn't noticed so far. Based on an earlier patch from Lachlan McIlroy. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Lachlan McIlroy <lmcilroy@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
2011-05-25xfs: check for valid indices in xfs_iext_get_ext and xfs_iext_idx_to_irecChristoph Hellwig
Based on an earlier patch from Lachlan McIlroy. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Lachlan McIlroy <lmcilroy@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
2011-05-25xfs: fix up asserts in xfs_iflush_forkChristoph Hellwig
Remove asserts in xfs_iflush_fork that would call xfs_iext_get_ext with a potentially invalid extent buffer index. Based on an earlier patch from Lachlan McIlroy. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Lachlan McIlroy <lmcilroy@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
2011-05-25xfs: do not do pointer arithmetic on extent recordsChristoph Hellwig
We need to call xfs_iext_get_ext for the previous extent to get a valid pointer, and can't just do pointer arithmetics as they might be in different pages. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Lachlan McIlroy <lmcilroy@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
2011-05-25xfs: do not use unchecked extent indices in xfs_bunmapiChristoph Hellwig
Make sure to only call xfs_iext_get_ext after we've validate the extent index when moving on to the next index in xfs_bunmapi. Also remove the old workaround for too large indices that has been superceeded by the proper fix in xfs_bmap_del_extent. Based on an earlier patch from Lachlan McIlroy. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Lachlan McIlroy <lmcilroy@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
2011-05-25xfs: do not use unchecked extent indices in xfs_bmapiChristoph Hellwig
Make sure to only call xfs_iext_get_ext after we've validate the extent index when moving on to the next index in xfs_bmapi. Based on an earlier patch from Lachlan McIlroy. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Lachlan McIlroy <lmcilroy@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
2011-05-25xfs: do not use unchecked extent indices in xfs_bmap_add_extent_*Christoph Hellwig
Make sure to only call xfs_iext_get_ext after we've validate the extent index in the various xfs_bmap_add_extent_* helpers. Based on an earlier patch from Lachlan McIlroy. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Lachlan McIlroy <lmcilroy@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
2011-05-25xfs: remove if_lastexChristoph Hellwig
The if_lastex field in struct xfs_ifork is only used as a temporary index during xfs_bmapi and xfs_bunmapi. Instead of using the inode fork to store it keep it local in the callchain. Fortunately this is very easy as we already pass a stack copy of it down the whole chain which can simplify be changed to be passed by reference. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
2011-05-25xfs: remove the unused XFS_BMAPI_RSVBLOCKS flagChristoph Hellwig
The XFS_BMAPI_RSVBLOCKS is unused, and as far as I can see has always been. Remove it to simplify the bmapi implementation and conserve stack space. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
2011-05-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6: (126 commits) sh_mobile_meram: Safely disable MERAM operation when not initialized video: mb862xxfb: add support for L1 displaying video: mb862xx: add support for controller's I2C bus adapter video: mb862xxfb: relocate register space to get contiguous vram video: mb862xxfb: use pre-initialized configuration for PCI GDCs video: mb862xxfb: correct fix.smem_len field initialization video: s3c-fb: correct transparency checking in 32bpp video: s3c-fb: add gpio setup function to resume function fbdev/amifb: Remove superfluous alignment of frame buffer memory fbdev/amifb: Do not call panic() if there's not enough Chip RAM fbdev/amifb: Correct check for video memory size video: mb862xxfb: Require either FB_MB862XX_PCI_GDC or FB_MB862XX_LIME video: s3c-fb: add window variant information for S5P video: s3c-fb: add additional validate bpps video: s3c-fb: correct window osd size offset values udlfb: include prefetch.h explicitly drivers/video/s3c2410fb.c: Convert release_resource to release_mem_region drivers/video/sm501fb.c: Convert release_resource to release_mem_region drivers/video: Convert release_resource to release_mem_region video, udlfb: Fix two build warnings about 'ignoring return value' ...
2011-05-25drivers/tty/serial/pch_uart.c needs slab.hAndrew Morton
alpha allmodconfig: drivers/tty/serial/pch_uart.c: In function 'dma_handle_tx': drivers/tty/serial/pch_uart.c:873: error: implicit declaration of function 'kzalloc' drivers/tty/serial/pch_uart.c:873: warning: assignment makes pointer from integer without a cast drivers/tty/serial/pch_uart.c: In function 'pch_uart_init_port': drivers/tty/serial/pch_uart.c:1403: warning: assignment makes pointer from integer without a cast Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-25drivers/gpio/ml_ioh_gpio.c needs slab.hAndrew Morton
alpha allmodconfig: drivers/gpio/ml_ioh_gpio.c: In function 'ioh_gpio_probe': drivers/gpio/ml_ioh_gpio.c:205: error: implicit declaration of function 'kzalloc' drivers/gpio/ml_ioh_gpio.c:205: warning: assignment makes pointer from integer without a cast also fix this: drivers/gpio/ml_ioh_gpio.c:145: warning: 'ioh_gpio_save_reg_conf' defined but not used drivers/gpio/ml_ioh_gpio.c:154: warning: 'ioh_gpio_restore_reg_conf' defined but not used Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-25drivers/gpio/vx855_gpio.c needs slab.hAndrew Morton
alpha allmodconfig: drivers/gpio/vx855_gpio.c: In function 'vx855gpio_probe': drivers/gpio/vx855_gpio.c:233: error: implicit declaration of function 'kzalloc' drivers/gpio/vx855_gpio.c:233: warning: assignment makes pointer from integer without a cast Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-25fs/ncpfs/inode.c: suppress used-uninitialised warningAndrew Morton
We get this spurious warning: fs/ncpfs/inode.c: In function 'ncp_fill_super': fs/ncpfs/inode.c:451: warning: 'data.mounted_vol[1u]' may be used uninitialized in this function fs/ncpfs/inode.c:451: warning: 'data.mounted_vol[2u]' may be used uninitialized in this function fs/ncpfs/inode.c:451: warning: 'data.mounted_vol[3u]' may be used uninitialized in this function ... It's notabug, but we can easily fix it with a memset(). Reported-by: Harry Wei <jiaweiwei.xiyou@gmail.com> Cc: Petr Vandrovec <petr@vandrovec.name> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-25checkpatch: fix defect in printk(KERN_<LEVEL> 80 column exceptionsJoe Perches
Currently, printk lines with a only KERN_PREFIX and a quoted string without a comma or close paren that exceed 80 columns are flagged with a warning. ie: printk(KERN_WARNING "some long string that extends beond 80 cols..." "and is continued on another line\n"); Allow this form instead of emitting a warning. Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-25checkpatch: add <foo>_<level> and MODULE_<BAR> to 80 column exceptionsJoe Perches
Many module or file local logging functions use specific prefixes other than pr|dev|netdev. Allow all forms like foo_printk and foo_err to be longer than 80 columns. Also allow MODULE_<BAR> declarations to be longer than 80 columns. Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-25checkpatch: add check for line continuations in quoted stringsJoe Perches
Add a warning for unterminated quoted strings with line continuations as these frequently add unwanted whitespace. Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-25lib: consolidate DEBUG_STACK_USAGE optionStephen Boyd
Most arches define CONFIG_DEBUG_STACK_USAGE exactly the same way. Move it to lib/Kconfig.debug so each arch doesn't have to define it. This obviously makes the option generic, but that's fine because the config is already used in generic code. It's not obvious to me that sysrq-P actually does anything caution by keeping the most inclusive wording. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Chris Metcalf <cmetcalf@tilera.com> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Richard Weinberger <richard@nod.at> Acked-by: Mike Frysinger <vapier@gentoo.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Hirokazu Takata <takata@linux-m32r.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-25percpu_counter: change return value and add commentsShaohua Li
The percpu_counter_*_positive() API in UP case doesn't check if return value is positive. Add comments to explain why we don't. Also if count < 0, returns 0 instead of 1 for *read_positive(). [akpm@linux-foundation.org: tweak comment] Signed-off-by: Shaohua Li <shaohua.li@intel.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-25lib/genalloc.c: add support for specifying the physical addressJean-Christophe PLAGNIOL-VILLARD
So we can specify the virtual address as the base of the pool chunk and then get physical addresses for hardware IP. For example on at91 we will use this on spi, uart or macb Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice VILCHEZ <patrice.vilchez@atmel.com> Cc: Jes Sorensen <jes@wildopensource.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-25include/linux/genalloc.h: add multiple-inclusion guardsJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice VILCHEZ <patrice.vilchez@atmel.com> Cc: Jes Sorensen <jes@wildopensource.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>