| 330fe3c | Artem Bityutskiy | 31 May 2012, 23:26:12 UTC | fat: mark superblock as dirty less often Preparation for further changes. It touches few functions in fatent.c and prevents them from marking the superblock as dirty unnecessarily often. Namely, instead of marking it as dirty in the internal tight loops - do it only once at the end of the functions. And instead of marking it as dirty while holding the FAT table lock, do it outside the lock. The reason for this patch is that marking the superblock as dirty will soon become a little bit heavier operation, so it is cleaner to do this only when it is necessary. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:28 UTC |
| 90b4366 | Artem Bityutskiy | 31 May 2012, 23:26:12 UTC | fat: introduce mark_fsinfo_dirty helper A preparation patch which introduces a 'mark_fsinfo_dirty()' helper function which just sets the 's_dirt' flag to 1 so far. I'll add more code to this helper later, so I do not mark it as 'inline'. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:27 UTC |
| 020ac5b | Artem Bityutskiy | 31 May 2012, 23:26:12 UTC | fat: introduce special inode for managing the FSINFO block This is patchset makes fatfs stop using the VFS '->write_super()' method for writing out the FSINFO block. The final goal is to get rid of the 'sync_supers()' kernel thread. This kernel thread wakes up every 5 seconds (by default) and calls '->write_super()' for all mounted file-systems. And the bad thing is that this is done even if all the superblocks are clean. Moreover, some file-systems do not even need this end they do not register the '->write_super()' method at all (e.g., btrfs). So 'sync_supers()' most often just generates useless wake-ups and wastes power. I am trying to make all file-systems independent of '->write_super()' and plan to remove 'sync_supers()' and '->write_super' completely once there are no more users. The '->write_supers()' method is mostly used by baroque file-systems like hfs, udf, etc. Modern file-systems like btrfs and xfs do not use it. This justifies removing this stuff from VFS completely and make every FS self-manage own superblock. Tested with xfstests. This patch: Preparation for further changes. It introduces a special inode ('fsinfo_inode') in FAT file-system which we'll later use for managing the FSINFO block. Note, this there is already one special inode ('fat_inode') which is used for managing the FAT tables. Introduce new 'MSDOS_FSINFO_INO' constant for this special inode. It is safe to do because FAT file-system does not store inode numbers on the media but generates them run-time. I've also cleaned up the comment to existing 'MSDOS_ROOT_INO' constant, while on it. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:27 UTC |
| 7bc1bac | Dan Carpenter | 31 May 2012, 23:26:11 UTC | HPFS: remove PRINTK() macro The PRINTK() macro isn't really used. Let's just remove it because it is ugly and out of date. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:27 UTC |
| 1147597 | Ryusuke Konishi | 31 May 2012, 23:26:11 UTC | nilfs2: flush disk caches in syncing There are two cases that the cache flush is needed to avoid data loss against unexpected hang or power failure. One is sync file function (i.e. nilfs_sync_file) and another is checkpointing ioctl. This issues a cache flush request to device for such cases if barrier mount option is enabled, and makes sure data really is on persistent storage on their completion. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:27 UTC |
| a1d4944 | Will Deacon | 31 May 2012, 23:26:10 UTC | pipe: return -ENOIOCTLCMD instead of -EINVAL on unknown ioctl command As described in commit 07d106d0a33d ("vfs: fix up ENOIOCTLCMD error handling"), drivers should return -ENOIOCTLCMD if they receive an ioctl command which they don't understand. Doing so will result in -ENOTTY being returned to userspace, which matches the behaviour of the compat layer if it fails to translate an ioctl command. This patch fixes the pipe ioctl to return -ENOIOCTLCMD instead of -EINVAL when passed an unknown ioctl command. Signed-off-by: Will Deacon <will.deacon@arm.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Alan Cox <alan@linux.intel.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:27 UTC |
| c67e538 | H Hartley Sweeten | 31 May 2012, 23:26:10 UTC | init: disable sparse checking of the mount.o source files The init/mount.o source files produce a number of sparse warnings of the type: warning: incorrect type in argument 1 (different address spaces) expected char [noderef] <asn:1>*dev_name got char *name This is due to the syscalls expecting some of the arguments to be user pointers but they are being passed as kernel pointers. This is harmless but adds a lot of noise to a sparse build. To limit the noise just disable the sparse checking in the relevant source files, but still display a warning so that the user knows this has been done. Since the sparse checking has been disabled we can also remove the __user __force casts that are scattered thru the source. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:27 UTC |
| 243f380 | Joe Perches | 31 May 2012, 23:26:09 UTC | checkpatch: suggest pr_<level> over printk(KERN_<LEVEL> Suggest the shorter pr_<level> instead of printk(KERN_<LEVEL>. Prefer to use pr_<level> over bare printks. Prefer to use pr_warn over pr_warning. Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@shadowen.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> | 01 June 2012, 00:49:27 UTC |
| 9a4cad4 | Eric Nelson | 31 May 2012, 23:26:09 UTC | checkpatch: check for whitespace before semicolon at EOL Requires --strict option during invocation: ~/linux$ scripts/checkpatch --strict foo.patch This tests for a bad habits of mine like this: return 0 ; Note that it does allow a special case of a bare semicolon for empty loops: while (foo()) ; Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com> Cc: Andy Whitcroft <apw@canonical.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:27 UTC |
| 133fd9f | Denys Vlasenko | 31 May 2012, 23:26:08 UTC | vsprintf: further optimize decimal conversion Previous code was using optimizations which were developed to work well even on narrow-word CPUs (by today's standards). But Linux runs only on 32-bit and wider CPUs. We can use that. First: using 32x32->64 multiply and trivial 32-bit shift, we can correctly divide by 10 much larger numbers, and thus we can print groups of 9 digits instead of groups of 5 digits. Next: there are two algorithms to print larger numbers. One is generic: divide by 1000000000 and repeatedly print groups of (up to) 9 digits. It's conceptually simple, but requires an (unsigned long long) / 1000000000 division. Second algorithm splits 64-bit unsigned long long into 16-bit chunks, manipulates them cleverly and generates groups of 4 decimal digits. It so happens that it does NOT require long long division. If long is > 32 bits, division of 64-bit values is relatively easy, and we will use the first algorithm. If long long is > 64 bits (strange architecture with VERY large long long), second algorithm can't be used, and we again use the first one. Else (if long is 32 bits and long long is 64 bits) we use second one. And third: there is a simple optimization which takes fast path not only for zero as was done before, but for all one-digit numbers. In all tested cases new code is faster than old one, in many cases by 30%, in few cases by more than 50% (for example, on x86-32, conversion of 12345678). Code growth is ~0 in 32-bit case and ~130 bytes in 64-bit case. This patch is based upon an original from Michal Nazarewicz. [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Cc: Douglas W Jones <jones@cs.uiowa.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:27 UTC |
| 725fe00 | Grant Likely | 31 May 2012, 23:26:08 UTC | vsprintf: correctly handle width when '#' flag used in %#p format The '%p' output of the kernel's vsprintf() uses spec.field_width to determine how many digits to output based on 2 * sizeof(void*) so that all digits of a pointer are shown. ie. a pointer will be output as "001A2B3C" instead of "1A2B3C". However, if the '#' flag is used in the format (%#p), then the code doesn't take into account the width of the '0x' prefix and will end up outputing "0x1A2B3C" instead of "0x001A2B3C". This patch reworks the "pointer()" format hook to include 2 characters for the '0x' prefix if the '#' flag is included. [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:27 UTC |
| d84970b | Nicolas Pitre | 31 May 2012, 23:26:07 UTC | kernel/cpu_pm.c: fix various typos Signed-off-by: Nicolas Pitre <nico@linaro.org> Acked-by: Colin Cross <ccross@android.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:27 UTC |
| 97fd75b | Andrew Morton | 31 May 2012, 23:26:07 UTC | kernel/irq/manage.c: use the pr_foo() infrastructure to prefix printks Use the module-wide pr_fmt() mechanism rather than open-coding "genirq: " everywhere. Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:26 UTC |
| 499eea6 | Sasikantha babu | 31 May 2012, 23:26:07 UTC | sethostname/setdomainname: notify userspace when there is a change in uts_kern_table sethostname() and setdomainname() notify userspace on failure (without modifying uts_kern_table). Change things so that we only notify userspace on success, when uts_kern_table was actually modified. Signed-off-by: Sasikantha babu <sasikanth.v19@gmail.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: WANG Cong <amwang@redhat.com> Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:26 UTC |
| 5401cf3 | Gustavo Padovan | 31 May 2012, 23:26:06 UTC | .mailmap: add Gustavo Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:26 UTC |
| 9ceb5c1 | Sergei Shtylyov | 31 May 2012, 23:26:06 UTC | drivers/message/fusion: use pci_dev->revision This driver uses PCI_CLASS_REVISION instead of PCI_REVISION_ID, so it wasn't converted by 44c10138fd4bbc ("PCI: Change all drivers to use pci_device->revision"). In one case, it even reads PCI revision ID without using it -- that code is now removed... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Acked-by: "Nandigama, Nagalakshmi" <Nagalakshmi.Nandigama@lsi.com> Cc: Eric Moore <eric.moore@lsi.com> Acked-by: Auke Kok <auke-jan.h.kok@intel.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:26 UTC |
| ee5e568 | Wei Yang | 31 May 2012, 23:26:05 UTC | kernel/resource.c: correct the comment of allocate_resource() In the comment of allocate_resource(), the explanation of parameter max and min is not correct. Actually, these two parameters are used to specify the range of the resource that will be allocated, not the min/max size that will be allocated. Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:26 UTC |
| a3860c1 | Xi Wang | 31 May 2012, 23:26:04 UTC | introduce SIZE_MAX ULONG_MAX is often used to check for integer overflow when calculating allocation size. While ULONG_MAX happens to work on most systems, there is no guarantee that `size_t' must be the same size as `long'. This patch introduces SIZE_MAX, the maximum value of `size_t', to improve portability and readability for allocation size validation. Signed-off-by: Xi Wang <xi.wang@gmail.com> Acked-by: Alex Elder <elder@dreamhost.com> Cc: David Airlie <airlied@linux.ie> Cc: Pekka Enberg <penberg@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:26 UTC |
| 1583729 | Xi Wang | 31 May 2012, 23:26:04 UTC | CodingStyle: add kmalloc_array() to memory allocators Add the new kmalloc_array() to the list of general-purpose memory allocators in chapter 14. Signed-off-by: Xi Wang <xi.wang@gmail.com> Acked-by: Jesper Juhl <jj@chaosbits.net> Acked-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:26 UTC |
| 1cefe28 | Kautuk Consul | 31 May 2012, 23:26:03 UTC | um/kernel/trap.c: port OOM changes to handle_page_fault() Commit d065bd810b6d ("mm: retry page fault when blocking on disk transfer") and commit 37b23e0525d3 ("x86,mm: make pagefault killable") introduced changes into the x86 pagefault handler for making the page fault handler retryable as well as killable. These changes reduce the mmap_sem hold time, which is crucial during OOM killer invocation. Port these changes to um. Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:26 UTC |
| 4f1c28d | Andrew Morton | 31 May 2012, 23:26:02 UTC | security/keys/keyctl.c: suppress memory allocation failure warning This allocation may be large. The code is probing to see if it will succeed and if not, it falls back to vmalloc(). We should suppress any page-allocation failure messages when the fallback happens. Reported-by: Dave Jones <davej@redhat.com> Acked-by: David Howells <dhowells@redhat.com> Cc: James Morris <jmorris@namei.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 01 June 2012, 00:49:26 UTC |
| ecb41a7 | Sachin Kamat | 29 May 2012, 22:07:40 UTC | drivers/rtc/rtc-s3c.c: fix compiler warning rtc-s3c.c:673:32: warning: `s3c_rtc_drv_data_array' defined but not used [-Wunused-variable] Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:34 UTC |
| 621bae7 | Hannu Heikkinen | 29 May 2012, 22:07:40 UTC | drivers/rtc/rtc-tegra.c: clean up probe/remove routines Use the devres managed resource functions in the probe routine. Also affects the remove routine where the previously used free and release functions are not needed. The devm_* functions eliminate the need for manual resource releasing and simplify error handling. Resources allocated by devm_* are freed automatically on driver detach. Signed-off-by: Hannu Heikkinen <ext-hannu.m.heikkinen@nokia.com> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:34 UTC |
| ac2dee5 | Rajkumar Kasirajan | 29 May 2012, 22:07:40 UTC | drivers/rtc/rtc-pl031.c: remove RTC timer interrupt handling Remove RTT interrupt handling, since PIE mode interrupts are now better emulated in generic code via an hrtimer we have no need for this, and there is no codepath in the driver that enables these periodic interrupts anyway. Signed-off-by: Rajkumar Kasirajan <rajkumar.kasirajan@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Cc: Mattias Wallin <mattias.wallin@stericsson.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:34 UTC |
| e862e7c | Roland Stigge | 29 May 2012, 22:07:39 UTC | drivers/rtc/rtc-lpc32xx.c: add device tree support Adds device tree support for rtc-lpc32xx.c Signed-off-by: Roland Stigge <stigge@antcom.de> Acked-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:34 UTC |
| bcffb10 | Nikolaus Voss | 29 May 2012, 22:07:39 UTC | drivers/rtc/rtc-m41t93.c: don't let get_time() reset M41T93_FLAG_OF If the rtc reports the time might be invalid due to oscillator failure, M41T93_FLAG_OF flag must not be reset by get_time() as the read operation doesn't make the time valid. Without this patch, only the first get_time() reported an invalid time, the second get_time() reported a valid time althought the reported time is probably wrong due to oscillator failure. Instead of resetting in get_time(), with this patch M41T93_FLAG_OF is reset in set_time() when a valid time is to be written. Signed-off-by: Nikolaus Voss <n.voss@weinmann.de> Cc: Alessandro Zummo <a.zummo@towertech.it> 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> | 29 May 2012, 23:22:33 UTC |
| eb86c30 | Wolfram Sang | 29 May 2012, 22:07:38 UTC | rtc: ds1307: add trickle charger support Some DS13XX devices have "trickle chargers". Its configuration register is at different locations, the setup is the same, though. Since the configuration is board specific, introduce a platform_data to this driver. Tested with a DS1339 on a custom board. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Alessandro Zummo <alessandro.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:33 UTC |
| f8ae970 | Wolfram Sang | 29 May 2012, 22:07:38 UTC | rtc: ds1307: remove superfluous initialization ds1307 was kzalloced, so no need to zero members of the struct. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:33 UTC |
| 7981159 | Fabio Estevam | 29 May 2012, 22:07:37 UTC | rtc: rename CONFIG_RTC_MXC to CONFIG_RTC_DRV_MXC In order to keep consistency with other rtc drivers,rename CONFIG_RTC_MXC to CONFIG_RTC_DRV_MXC. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Alessandro Zummo <a.zummo@towertech.it> [akpm@linux-foundation.org: fix missed arch/arm/configs/imx_v6_v7_defconfig] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:33 UTC |
| b224b9a | Fabio Estevam | 29 May 2012, 22:07:37 UTC | drivers/rtc/Kconfig: place RTC_DRV_IMXDI and RTC_MXC under "on-CPU RTC drivers" RTC_DRV_IMXDI and RTC_MXC are on-chip RTC modules, so move them under "on-CPU RTC drivers" selection menu. While at it change the dependency of RTC_DRV_IMXDI from ARCH_MX25 to SOC_IMX25. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:33 UTC |
| 0f20b76 | Alexander Stein | 29 May 2012, 22:07:36 UTC | drivers/rtc/rtc-pcf8563.c: add RTC_VL_READ/RTC_VL_CLR ioctl feature Changes are based on arch/cris/arch-v10/drivers/pcf8563.c [akpm@linux-foundation.org: fix sparse warning] Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Mikael Starvik <starvik@axis.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Wu Fengguang <wfg@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:33 UTC |
| e311c92 | Alexander Stein | 29 May 2012, 22:07:36 UTC | rtc: add ioctl to get/clear battery low voltage status Currently there is no generic way to get the RTC battery status within an application. So add an ioctl to read the status bit. The idea is that the bit is set once a low voltage is detected. It stays there until it is reset using the RTC_VL_CLR ioctl. Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:33 UTC |
| 84d56b3 | H Hartley Sweeten | 29 May 2012, 22:07:36 UTC | drivers/rtc/rtc-ep93xx.c: convert to use module_platform_driver() Use module_platform_driver() to remove the boilerplate code. Also, change the probe and remove functions to __devinit/__devexit. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:33 UTC |
| 0108c4f | Viresh Kumar | 29 May 2012, 22:07:35 UTC | rtc/spear: add Device Tree probing capability SPEAr platforms now support DT and so must convert all drivers support DT. This patch adds DT probing support for rtc and updates its documentation too. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Cc: Stefan Roese <sr@denx.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Rajeev Kumar <rajeev-dlh.kumar@st.com> Cc: Rob Herring <robherring2@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:33 UTC |
| 7c20342 | Pierre Carrier | 29 May 2012, 22:07:35 UTC | lib/vsprintf.c: "%#o",0 becomes '0' instead of '00' number()'s behaviour is slighly changed: 0 becomes "0" instead of "00" when using the flag SPECIAL and base 8. Before: Number\Format %o %#o %x %#x 0 0 00 0 0x0 1 1 01 1 0x1 16 20 020 10 0x10 After: Number\Format %o %#o %x %#x 0 0 0 0 0x0 1 1 01 1 0x1 16 20 020 10 0x10 Signed-off-by: Pierre Carrier <pierre@spotify.com> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:33 UTC |
| 5536805 | Nick Piggin | 29 May 2012, 22:07:34 UTC | radix-tree: fix preload vector size We are not preallocating a sufficient number of nodes. Signed-off-by: Nick Piggin <npiggin@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:33 UTC |
| fd0a373 | Stephen Boyd | 29 May 2012, 22:07:34 UTC | spinlock_debug: print kallsyms name for lock When a spinlock warning is printed we usually get BUG: spinlock bad magic on CPU#0, modprobe/111 lock: 0xdff09f38, .magic: 00000000, .owner: /0, .owner_cpu: 0 but it's nicer to print the symbol for the lock if we have it so that we can avoid 'grep dff09f38 /proc/kallsyms' to find out which lock it was. Use kallsyms to print the symbol name so we get something a bit easier to read BUG: spinlock bad magic on CPU#0, modprobe/112 lock: test_lock, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0 If the lock is not in kallsyms %ps will fall back to printing the address directly. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:33 UTC |
| 4796dd2 | Stephen Boyd | 29 May 2012, 22:07:33 UTC | vsprintf: fix %ps on non symbols when using kallsyms Using %ps in a printk format will sometimes fail silently and print the empty string if the address passed in does not match a symbol that kallsyms knows about. But using %pS will fall back to printing the full address if kallsyms can't find the symbol. Make %ps act the same as %pS by falling back to printing the address. While we're here also make %ps print the module that a symbol comes from so that it matches what %pS already does. Take this simple function for example (in a module): static void test_printk(void) { int test; pr_info("with pS: %pS\n", &test); pr_info("with ps: %ps\n", &test); } Before this patch: with pS: 0xdff7df44 with ps: After this patch: with pS: 0xdff7df44 with ps: 0xdff7df44 Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:32 UTC |
| 05a6c8a | Andrew Morton | 29 May 2012, 22:07:32 UTC | lib/bitmap.c: fix documentation for scnprintf() functions The code comments for bscnl_emit() and bitmap_scnlistprintf() are describing snprintf() return semantics, but these functions use scnprintf() return semantics. Fix that, and document the bitmap_scnprintf() return value as well. Cc: Ryota Ozaki <ozaki.ryota@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:32 UTC |
| 68aecfb | Andrew Morton | 29 May 2012, 22:07:32 UTC | lib/string_helpers.c: make arrays static Moving these arrays into static storage shrinks the kernel a bit: text data bss dec hex filename 723 112 64 899 383 lib/string_helpers.o 516 272 64 852 354 lib/string_helpers.o Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:32 UTC |
| 26d7b99 | Uwe Kleine-König | 29 May 2012, 22:07:31 UTC | lib/test-kstrtox.c: mark const init data with __initconst instead of __initdata As long as there is no other non-const variable marked __initdata in the same compilation unit it doesn't hurt. If there were one however compilation would fail with error: $variablename causes a section type conflict because a section containing const variables is marked read only and so cannot contain non-const variables. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:32 UTC |
| 17a801f | Chris Metcalf | 29 May 2012, 22:07:31 UTC | list_debug: WARN for adding something already in the list We were bitten by this at one point and added an additional sanity test for DEBUG_LIST. You can't validly add a list_head to a list where either prev or next is the same as the thing you're adding. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:32 UTC |
| 401dea7 | Johan Hovold | 29 May 2012, 22:07:31 UTC | leds: add LM3533 LED driver Add sub-driver for the LEDs on National Semiconductor / TI LM3533 lighting power chips. The chip provides 256 brightness levels, hardware accelerated blinking as well as ambient-light-sensor and pwm input control. Signed-off-by: Johan Hovold <jhovold@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Rob Landley <rob@landley.net> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Jonathan Cameron <jic23@cam.ac.uk> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:32 UTC |
| e7e11d8 | Alexander Stein | 29 May 2012, 22:07:30 UTC | drivers/leds/leds-pca955x.c: fix race condition while setting brightness on several LEDs When issuing the following command: for I in 0 1 2 3 4 5 6 7; do echo 0 > /sys/class/leds/pca955x\:${I}/brightness; done It is possible that all the pca955x_read_ls calls are done sequentially before any pca955x_write_ls call is done. This updates the LS only to the last LED update in its set. Fix this by using a global lock for the pca995x device during pca955x_led_work. Also used a struct for shared data betreen all LEDs. [akpm@linux-foundation.org: revert unintentional rename of pca955x_ledsel()] Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:32 UTC |
| 44e1e9f | Shuah Khan | 29 May 2012, 22:07:30 UTC | leds: add new transient trigger for one shot timer activation The leds timer trigger does not currently have an interface to activate a one shot timer. The current support allows for setting two timers, one for specifying how long a state to be on, and the second for how long the state to be off. The delay_on value specifies the time period an LED should stay in on state, followed by a delay_off value that specifies how long the LED should stay in off state. The on and off cycle repeats until the trigger gets deactivated. There is no provision for one time activation to implement features that require an on or off state to be held just once and then stay in the original state forever. Without one shot timer interface, user space can still use timer trigger to set a timer to hold a state, however when user space application crashes or goes away without deactivating the timer, the hardware will be left in that state permanently. As a specific example of this use-case, let's look at vibrate feature on phones. Vibrate function on phones is implemented using PWM pins on SoC or PMIC. There is a need to activate one shot timer to control the vibrate feature, to prevent user space crashes leaving the phone in vibrate mode permanently causing the battery to drain. This trigger exports three properties, activate, state, and duration When transient trigger is activated these properties are set to default values. - duration allows setting timer value in msecs. The initial value is 0. - activate allows activating and deactivating the timer specified by duration as needed. The initial and default value is 0. This will allow duration to be set after trigger activation. - state allows user to specify a transient state to be held for the specified duration. Signed-off-by: Shuah Khan <shuahkhan@gmail.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: NeilBrown <neilb@suse.de> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:32 UTC |
| 49dca5a | Alexander Holler | 29 May 2012, 22:07:29 UTC | leds: heartbeat: stop on shutdown A halted kernel should not show a heartbeat. [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: Alexander Holler <holler@ahsoftware.de> Cc: Shuah Khan <shuahkhan@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:32 UTC |
| 6335f8f | Kim, Milo | 29 May 2012, 22:07:29 UTC | drivers/leds/leds-lm3530.c: simplify als configuration on initialization For better code readability, ALS code is moved to new a function - lm3530_als_configure() Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Shreshtha Kumar SAHU <shreshthakumar.sahu@stericsson.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:32 UTC |
| 8035a50 | Kim, Milo | 29 May 2012, 22:07:28 UTC | include/linux/led-lm3530.h: comment correction about the range of brightness max brightness is 127, so the range of brt_val should be from 0 to 127 Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Shreshtha Kumar SAHU <shreshthakumar.sahu@stericsson.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:32 UTC |
| 1381187 | Shuah Khan | 29 May 2012, 22:07:28 UTC | leds: change ledtrig-timer to use activated flag Change existing timer trigger to use the new ->activated flag to set activate successful status in activate routine and check it in deactivate routine to do cleanup. Signed-off-by: Shuah Khan <shuahkhan@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:31 UTC |
| 03c091e | Shuah Khan | 29 May 2012, 22:07:28 UTC | leds: change existing triggers to use activated flag Change existing triggers backlight, gpio, and heartbeat to use the new ->activated flag to set activate successful status in their activate routines and check it in their deactivate routines to do cleanup. Signed-off-by: Shuah Khan <shuahkhan@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:31 UTC |
| b009618 | Shuah Khan | 29 May 2012, 22:07:27 UTC | leds: add new field to led_classdev struct to save activation state Add a new field to led_classdev to save activattion state after activate routine is successful. This saved state is used in deactivate routine to do cleanup such as removing device files, and free memory allocated during activation. Currently trigger_data not being null is used for this purpose. Existing triggers will need changes to use this new field. Signed-off-by: Shuah Khan <shuahkhan@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:31 UTC |
| 1daef6d | Thomas Meyer | 29 May 2012, 22:07:27 UTC | leds: Use kcalloc instead of kzalloc to allocate array The advantage of kcalloc is that will prevent integer overflows which could result from the multiplication of number of elements and size and it is also a bit nicer to read. The semantic patch that makes this change is available in https://lkml.org/lkml/2011/11/25/107 Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:31 UTC |
| 872b86b | Shuah Khan | 29 May 2012, 22:07:26 UTC | leds: simple_strtoul() cleanup led-class.c and ledtrig-timer.c still use simple_strtoul(). Change them to use kstrtoul() instead of obsolete simple_strtoul(). Also fix the existing int ret declaration to be ssize_t to match the return type for _store functions in ledtrig-timer.c. Signed-off-by: Shuah Khan <shuahkhan@gmail.com> Cc: Joe Perches <joe@perches.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:31 UTC |
| 5ba7363 | David Dajun Chen | 29 May 2012, 22:07:26 UTC | leds: driver for DA9052/53 PMIC v2 LED Driver for Dialog Semiconductor DA9052/53 PMICs. [akpm@linux-foundation.org: make led_reg static] Signed-off-by: David Dajun Chen <dchen@diasemi.com> Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:31 UTC |
| 5bc9ad7 | Dan Carpenter | 29 May 2012, 22:07:26 UTC | drivers/leds/leds-lp5521.c: fix lp5521_read() error handling Gcc 4.6.2 complains that: drivers/leds/leds-lp5521.c: In function `lp5521_load_program': drivers/leds/leds-lp5521.c:214:21: warning: `mode' may be used uninitialized in this function [-Wuninitialized] drivers/leds/leds-lp5521.c: In function `lp5521_probe': drivers/leds/leds-lp5521.c:788:5: warning: `buf' may be used uninitialized in this function [-Wuninitialized] drivers/leds/leds-lp5521.c:740:6: warning: `ret' may be used uninitialized in this function [-Wuninitialized] These are real problems if lp5521_read() returns an error. When that happens we should handle it, instead of ignoring it or doing a bitwise OR with all the other error codes and continuing. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Milo <Milo.Kim@ti.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:31 UTC |
| c851529 | Jingoo Han | 29 May 2012, 22:07:25 UTC | backlight: tosa_lcd: use devm_ functions The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_kzalloc of these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Dmitry Baryshkov <dbaryshkov@gmail.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> | 29 May 2012, 23:22:31 UTC |
| f072c89 | Jingoo Han | 29 May 2012, 22:07:25 UTC | backlight: tosa_bl: use devm_ functions The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_kzalloc of these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Dmitry Baryshkov <dbaryshkov@gmail.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> | 29 May 2012, 23:22:31 UTC |
| d073adc | Jingoo Han | 29 May 2012, 22:07:24 UTC | backlight: tdo24m: use devm_ functions The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_kzalloc of these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Eric Miao <eric.y.miao@gmail.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> | 29 May 2012, 23:22:31 UTC |
| 541f936 | Jingoo Han | 29 May 2012, 22:07:24 UTC | backlight: s6e63m0: use devm_ functions The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_kzalloc of these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: InKi Dae <inki.dae@samsung.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> | 29 May 2012, 23:22:31 UTC |
| ab03e04 | Jingoo Han | 29 May 2012, 22:07:24 UTC | backlight: ltv350qv: use devm_ functions The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_kzalloc of these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Haavard Skinnemoen <hskinnemoen@gmail.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> | 29 May 2012, 23:22:31 UTC |
| 26f2b35 | Jingoo Han | 29 May 2012, 22:07:23 UTC | backlight: lms283gf05: use devm_ functions The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_kzalloc of these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Marek Vasut <marek.vasut@gmail.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> | 29 May 2012, 23:22:30 UTC |
| 86f6be4 | Jingoo Han | 29 May 2012, 22:07:23 UTC | backlight: ld9040: use devm_ functions The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_kzalloc of these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Donghwa Lee <dh09.lee@samsung.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> | 29 May 2012, 23:22:30 UTC |
| ba4a887 | Jingoo Han | 29 May 2012, 22:07:23 UTC | backlight: l4f00242t03: use devm_ functions The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_kzalloc of these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Alberto Panizzo <alberto@amarulasolutions.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> | 29 May 2012, 23:22:30 UTC |
| 9828eb0 | Jingoo Han | 29 May 2012, 22:07:22 UTC | backlight: ili9320: use devm_ functions The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_kzalloc of these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:30 UTC |
| 06c96f1 | Jingoo Han | 29 May 2012, 22:07:22 UTC | backlight: corgi_lcd: use devm_ functions The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_kzalloc of these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Eric Miao <eric.y.miao@gmail.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> | 29 May 2012, 23:22:30 UTC |
| 80629ef | Jingoo Han | 29 May 2012, 22:07:21 UTC | backlight: ams369fg06: use devm_ functions The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_kzalloc of these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.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> | 29 May 2012, 23:22:30 UTC |
| 91cdb23 | Jingoo Han | 29 May 2012, 22:07:21 UTC | backlight: adp8870: use devm_ functions The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_kzalloc of these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Michael Hennerich <michael.hennerich@analog.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> | 29 May 2012, 23:22:30 UTC |
| 58875ea | Jingoo Han | 29 May 2012, 22:07:21 UTC | backlight: adp8860: use devm_ functions The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_kzalloc of these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Michael Hennerich <michael.hennerich@analog.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> | 29 May 2012, 23:22:30 UTC |
| f5f4fd4 | Corentin Chary | 29 May 2012, 22:07:20 UTC | backlight: initialize struct backlight_properties properly In all these files, the .power field was never correctly initialized. Signed-off-by: Corentin Chary <corentin.chary@gmail.com> Cc: Jingoo Han <jg1.han@samsung.com> Cc: Dave Airlie <airlied@gmail.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> | 29 May 2012, 23:22:30 UTC |
| 6677110 | Jingoo Han | 29 May 2012, 22:07:20 UTC | drivers/video/backlight/l4f00242t03.c: use pr_fmt This driver uses pr_debug(), so provide it with the appropriate prefixing. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Alberto Panizzo <alberto@amarulasolutions.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:30 UTC |
| c353973 | Jingoo Han | 29 May 2012, 22:07:19 UTC | backlight: progear: use pr_err() instead of printk() Use pr_err() instead of printk() to allow dynamic debugging. The pr_fmt prefix for pr_ macros is used. Also fix checkpatch warnings as below: WARNING: printk() should include KERN_ facility level [akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe] Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Marcin Juszkiewicz <openembedded@haerwu.biz> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:30 UTC |
| 95e9313 | Jingoo Han | 29 May 2012, 22:07:19 UTC | backlight: omap1: use pr_info() instead of printk() Use pr_info() instead of printk() to allow dynamic debugging. The pr_fmt prefix for pr_ macros is used. Also fix checkpatch warning as below: WARNING: Prefer pr_info(... to printk(KERN_INFO, ... [akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe] Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Andrzej Zaborowski <balrogg@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:30 UTC |
| 20c225c | Jingoo Han | 29 May 2012, 22:07:18 UTC | backlight: jornada720: use pr_err()/pr_info() instead of printk() Use pr_err()/pr_info() instead of printk() to allow dynamic debugging. The pr_fmt prefix for pr_ macros is used. Also fix checkpatch warnings as below: WARNING: Prefer pr_err(... to printk(KERN_ERR, ... WARNING: Prefer pr_info(... to printk(KERN_INFO, ... [akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe] Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:29 UTC |
| 8c7610f | Jingoo Han | 29 May 2012, 22:07:18 UTC | backlight: generic_bl: use pr_info() instead of printk() Use pr_info() instead of printk() to allow dynamic debugging. The pr_fmt prefix for pr_ macros is used. Also fix checkpatch warnings as below: WARNING: printk() should include KERN_ facility level [akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe] Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:29 UTC |
| 31e6432 | Jingoo Han | 29 May 2012, 22:07:17 UTC | backlight: cr_bllcd: use pr_err()/pr_info() instead of printk() Use pr_err()/pr_info() instead of printk() to allow dynamic debugging. The pr_fmt prefix for pr_ macros is used. Also fix checkpatch warnings as below: WARNING: printk() should include KERN_ facility level WARNING: Prefer pr_err(... to printk(KERN_ERR, ... [akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe] Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:29 UTC |
| 7b12c1b | Jingoo Han | 29 May 2012, 22:07:16 UTC | backlight: apple_bl: use pr_debug()/pr_err() instead of printk() Use pr_debug()/pr_err() instead of printk() to allow dynamic debugging. The pr_fmt prefix for pr_ macros is used. Also fix checkpatch warnings as below: WARNING: Prefer pr_debug(... to printk(KERN_DEBUG, ... WARNING: Prefer pr_err(... to printk(KERN_ERR, ... [akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe] Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Matthew Garrett <mjg@redhat.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:29 UTC |
| 35f9616 | Jingoo Han | 29 May 2012, 22:07:16 UTC | backlight: use pr_warn() and pr_debug() instead of printk() Use pr_warn() and pr_debug() instead of printk to allow dynamic debugging. The pr_fmt prefix for pr_ macros is used. Also fix checkpatch warnings as below: WARNING: Prefer pr_warn(... to printk(KERN_WARNING, ... [akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe] Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:29 UTC |
| 71d7225 | Jingoo Han | 29 May 2012, 22:07:15 UTC | drivers/video/backlight/adp5520_bl.c: use kstrtoul() The usage of strict_strtoul() is not preferred. Thus, kstrtoul should be used. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Michael Hennerich <michael.hennerich@analog.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> | 29 May 2012, 23:22:29 UTC |
| dc406f5 | Jingoo Han | 29 May 2012, 22:07:15 UTC | drivers/video/backlight/adp8870_bl.c: use kstrtoul() The usage of strict_strtoul() is not preferred. Thus, kstrtoul should be used. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Michael Hennerich <michael.hennerich@analog.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> | 29 May 2012, 23:22:29 UTC |
| 8dd9d7f | Jingoo Han | 29 May 2012, 22:07:15 UTC | drivers/video/backlight/adp8860_bl.c: use kstrtoul() The usage of strict_strtoul() is not preferred. Thus, kstrtoul should be used. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Michael Hennerich <michael.hennerich@analog.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> | 29 May 2012, 23:22:29 UTC |
| 7f26c97 | Johan Hovold | 29 May 2012, 22:07:14 UTC | backlight: add LM3533 backlight driver Add sub-driver for the backlights on National Semiconductor / TI LM3533 lighting power chips. The chip provides 256 brightness levels and ambient-light-sensor and pwm input control. [akpm@linux-foundation.org: fix warning] [akpm@linux-foundation.org: fix the type of `mode'] Signed-off-by: Johan Hovold <jhovold@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Rob Landley <rob@landley.net> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Jonathan Cameron <jic23@cam.ac.uk> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:29 UTC |
| 1615d21 | H Hartley Sweeten | 29 May 2012, 22:07:14 UTC | drivers/video/backlight/apple_bl.c: include header for exported symbol prototypes Include the header to pickup the exported symbol prototype. Quiets the sparse warning: warning: symbol 'apple_bl_register' was not declared. Should it be static? warning: symbol 'apple_bl_unregister' was not declared. Should it be static? [akpm@linux-foundation.org: fix resulting build error] Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:29 UTC |
| d54ad83 | Inki Dae | 29 May 2012, 22:07:13 UTC | lcd: add callbacks for early fb event blank support This patchset adds early fb blank feature that a callback of lcd panel driver is called prior to specific fb driver's one. In the case of MIPI-DSI based video mode LCD Panel, for lcd power off, the power off commands should be transferred to lcd panel with display and mipi-dsi controller enabled because the commands is set to lcd panel at vsync porch period. and in opposite case, the callback of fb driver should be called prior to lcd panel driver's one because of same issue. Also if fb_blank mode is changed to FB_BLANK_POWERDOWN then display controller would be off(clock disable) but lcd panel would be still on. at this time, you could see some issue like sparkling on lcd panel because video clock to be delivered to ldi module of lcd panel was disabled. this issue could occurs for all lcd panels. The callback order is as the following: at fb_blank function of fbmem.c -> fb_notifier_call_chain(FB_EARLY_EVENT_BLANK) -> lcd panel driver's early_set_power() -> info->fbops->fb_blank() -> spcefic fb driver's fb_blank() -> fb_notifier_call_chain(FB_EVENT_BLANK) -> lcd panel driver's set_power() -> fb_notifier_call_chain(FB_R_EARLY_EVENT_BLANK) if info->fops->fb_blank() was failed. fb_notifier_call_chain(FB_R_EARLY_EVENT_BLANK) would be called to revert the effects of previous FB_EARLY_EVENT_BLANK call. and note that if early_set_power() of lcd_ops is NULL then early fb blank callback would be ignored. This patch: Add early_set_power and r_early_set_power callbacks. early_set_power callback is called prior to fb_blank() of fbmem.c and r_early_set_power callback is called if fb_blank() was failed to revert the effects of the early_set_power call of lcd panel driver. Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:29 UTC |
| bf05929 | Inki Dae | 29 May 2012, 22:07:12 UTC | fbdev: add events for early fb event support Add FB_EARLY_EVENT_BLANK and FB_R_EARLY_EVENT_BLANK event mode supports. first, fb_notifier_call_chain() is called with FB_EARLY_EVENT_BLANK and fb_blank() of specific fb driver is called and then fb_notifier_call_chain() is called with FB_EVENT_BLANK again at fb_blank(). and if fb_blank() was failed then fb_nitifier_call_chain() would be called with FB_R_EARLY_EVENT_BLANK to revert the previous effects. Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:28 UTC |
| aa523a8 | Lars-Peter Clausen | 29 May 2012, 22:07:12 UTC | blacklight: remove redundant spi driver bus initialization In ancient times it was necessary to manually initialize the bus field of an spi_driver to spi_bus_type. These days this is done in spi_driver_register() so we can drop the manual assignment. The patch was generated using the following coccinelle semantic patch: // <smpl> @@ identifier _driver; @@ struct spi_driver _driver = { .driver = { - .bus = &spi_bus_type, }, }; // </smpl> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:28 UTC |
| 4cb70c2 | Alessandro Rubini | 29 May 2012, 22:07:11 UTC | MAINTAINERS: remove Alessandro I'm definitely not up to date on the subject matter any more and haven't been able to comment on the messages on the topic. Signed-off-by: Alessandro Rubini <rubini@ipvvis.unipv.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:28 UTC |
| 8b64f2a | Uwe Kleine-König | 29 May 2012, 22:07:11 UTC | hamradio/scc: orphan driver in MAINTAINERS The email address doesn't exist anymore and the website yields a 404. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:28 UTC |
| 3f13461 | Glauber Costa | 29 May 2012, 22:07:11 UTC | memcg: decrement static keys at real destroy time We call the destroy function when a cgroup starts to be removed, such as by a rmdir event. However, because of our reference counters, some objects are still inflight. Right now, we are decrementing the static_keys at destroy() time, meaning that if we get rid of the last static_key reference, some objects will still have charges, but the code to properly uncharge them won't be run. This becomes a problem specially if it is ever enabled again, because now new charges will be added to the staled charges making keeping it pretty much impossible. We just need to be careful with the static branch activation: since there is no particular preferred order of their activation, we need to make sure that we only start using it after all call sites are active. This is achieved by having a per-memcg flag that is only updated after static_key_slow_inc() returns. At this time, we are sure all sites are active. This is made per-memcg, not global, for a reason: it also has the effect of making socket accounting more consistent. The first memcg to be limited will trigger static_key() activation, therefore, accounting. But all the others will then be accounted no matter what. After this patch, only limited memcgs will have its sockets accounted. [akpm@linux-foundation.org: move enum sock_flag_bits into sock.h, document enum sock_flag_bits, convert memcg_proto_active() and memcg_proto_activated() to test_bit(), redo tcp_update_limit() comment to 80 cols] Signed-off-by: Glauber Costa <glommer@parallels.com> Cc: Tejun Heo <tj@kernel.org> Cc: Li Zefan <lizefan@huawei.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.cz> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:28 UTC |
| 3afe36b | Glauber Costa | 29 May 2012, 22:07:10 UTC | memcg: always free struct memcg through schedule_work() Right now we free struct memcg with kfree right after a rcu grace period, but defer it if we need to use vfree() to get rid of that memory area. We do that by need, because we need vfree to be called in a process context. This patch unifies this behavior, by ensuring that even kfree will happen in a separate thread. The goal is to have a stable place to call the upcoming jump label destruction function outside the realm of the complicated and quite far-reaching cgroup lock (that can't be held when holding either the cpu_hotplug.lock or jump_label_mutex) [akpm@linux-foundation.org: tweak comment] Signed-off-by: Glauber Costa <glommer@parallels.com> Cc: Tejun Heo <tj@kernel.org> Cc: Li Zefan <lizefan@huawei.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:28 UTC |
| fa9add6 | Hugh Dickins | 29 May 2012, 22:07:09 UTC | mm/memcg: apply add/del_page to lruvec Take lruvec further: pass it instead of zone to add_page_to_lru_list() and del_page_from_lru_list(); and pagevec_lru_move_fn() pass lruvec down to its target functions. This cleanup eliminates a swathe of cruft in memcontrol.c, including mem_cgroup_lru_add_list(), mem_cgroup_lru_del_list() and mem_cgroup_lru_move_lists() - which never actually touched the lists. In their place, mem_cgroup_page_lruvec() to decide the lruvec, previously a side-effect of add, and mem_cgroup_update_lru_size() to maintain the lru_size stats. Whilst these are simplifications in their own right, the goal is to bring the evaluation of lruvec next to the spin_locking of the lrus, in preparation for a future patch. Signed-off-by: Hugh Dickins <hughd@google.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Michal Hocko <mhocko@suse.cz> Acked-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:28 UTC |
| 75b00af | Hugh Dickins | 29 May 2012, 22:07:09 UTC | mm: trivial cleanups in vmscan.c Utter trivia in mm/vmscan.c, mostly just reducing the linecount slightly; most exciting change being get_scan_count() calling vmscan_swappiness() once instead of twice. Signed-off-by: Hugh Dickins <hughd@google.com> Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Reviewed-by: Michal Hocko <mhocko@suse.cz> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:28 UTC |
| 4d7dcca | Hugh Dickins | 29 May 2012, 22:07:08 UTC | mm/memcg: get_lru_size not get_lruvec_size Konstantin just introduced mem_cgroup_get_lruvec_size() and get_lruvec_size(), I'm about to add mem_cgroup_update_lru_size(): but we're dealing with the same thing, lru_size[lru]. We ought to agree on the naming, and I do think lru_size is the more correct: so rename his ones to get_lru_size(). Signed-off-by: Hugh Dickins <hughd@google.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:28 UTC |
| af7c4b0 | Johannes Weiner | 29 May 2012, 22:07:08 UTC | mm: memcg: print statistics from live counters Directly print statistics and event counters instead of going through an intermediate accumulation stage into a separate array, which used to require defining statistic items in more than one place. [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.cz> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Ying Han <yinghan@google.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> | 29 May 2012, 23:22:28 UTC |
| fad02c2 | Johannes Weiner | 29 May 2012, 22:07:07 UTC | mm: memcg: group swapped-out statistics counter logically The counter of currently swapped out pages in a memcg (hierarchy) is sitting amidst ever-increasing event counters. Move this item to the other counters that reflect current state rather than history. This technically breaks the kernel ABI, but hopefully nobody relies on the order of items in memory.stat. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.cz> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Ying Han <yinghan@google.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> | 29 May 2012, 23:22:28 UTC |
| 1311471 | Johannes Weiner | 29 May 2012, 22:07:07 UTC | mm: memcg: keep ratelimit counter separate from event counters All events except the ratelimit counter are statistics exported to userspace. Keep this internal value out of the event count array. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.cz> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Ying Han <yinghan@google.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> | 29 May 2012, 23:22:27 UTC |
| 78ccf5b | Johannes Weiner | 29 May 2012, 22:07:06 UTC | mm: memcg: print statistics directly to seq_file Being able to use seq_printf() allows being smarter about statistics name strings, which are currently listed twice, with the only difference being a "total_" prefix on the hierarchical version. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.cz> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Ying Han <yinghan@google.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> | 29 May 2012, 23:22:27 UTC |
| fada52c | Johannes Weiner | 29 May 2012, 22:07:06 UTC | mm: memcg: convert numa stat to read_seq_string interface Instead of using the raw seq_file file interface, switch over to the read_seq_string cftype callback and let cgroup core code set up the seq_file. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.cz> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Ying Han <yinghan@google.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> | 29 May 2012, 23:22:27 UTC |
| 6104621 | Johannes Weiner | 29 May 2012, 22:07:05 UTC | mm: memcg: remove obsolete statistics array boundary enum item MEM_CGROUP_STAT_DATA is a leftover from when item counters were living in the same array as ever-increasing event counters. It's no longer needed, use MEM_CGROUP_STAT_NSTATS to iterate over the stat array. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.cz> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Ying Han <yinghan@google.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> | 29 May 2012, 23:22:27 UTC |
| 04eac7f | Glauber Costa | 29 May 2012, 22:07:05 UTC | rescounter: remove __must_check from res_counter_charge_nofail() Since we will succeed with the allocation no matter what, there isn't a need to use __must_check with it. It can very well be optional. Signed-off-by: Glauber Costa <glommer@parallels.com> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ying Han <yinghan@google.com> Reviewed-by: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:27 UTC |
| 2f3479b | KAMEZAWA Hiroyuki | 29 May 2012, 22:07:04 UTC | memcg: don't uncharge in mem_cgroup_move_account() Now, all callers pass 'false' for 'bool uncharge' so remove this argument. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ying Han <yinghan@google.com> Cc: Glauber Costa <glommer@parallels.com> Reviewed-by: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 29 May 2012, 23:22:27 UTC |
