summaryrefslogtreecommitdiffstats
Commit message (Collapse)AuthorAgeFilesLines
* fat: accessors for msdos_dir_entry 'start' fieldsSteven J. Magnani2012-07-314-25/+24
| | | | | | | | | | Simplify code by providing accessor functions for the directory entry start cluster fields. Signed-off-by: Steven J. Magnani <steve@digidescorp.com> Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hfsplus: use -ENOMEM when kzalloc() failsNamjae Jeon2012-07-311-1/+1
| | | | | | | | | Use -ENOMEM return value instead of -EINVAL when kzalloc() fails. Signed-off-by: Namjae Jeon <linkinjeon@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* nilfs2: add omitted comments for different structures in driver implementationVyacheslav Dubeyko2012-07-3111-10/+81
| | | | | | | | | Add omitted comments for different structures in driver implementation. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> 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>
* nilfs2: add omitted comments for structures in nilfs2_fs.hVyacheslav Dubeyko2012-07-311-24/+39
| | | | | | | | | Add omitted comments for structures in nilfs2_fs.h. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> 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>
* nilfs2: fix deadlock issue between chcp and thaw ioctlsRyusuke Konishi2012-07-314-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | An fs-thaw ioctl causes deadlock with a chcp or mkcp -s command: chcp D ffff88013870f3d0 0 1325 1324 0x00000004 ... Call Trace: nilfs_transaction_begin+0x11c/0x1a0 [nilfs2] wake_up_bit+0x20/0x20 copy_from_user+0x18/0x30 [nilfs2] nilfs_ioctl_change_cpmode+0x7d/0xcf [nilfs2] nilfs_ioctl+0x252/0x61a [nilfs2] do_page_fault+0x311/0x34c get_unmapped_area+0x132/0x14e do_vfs_ioctl+0x44b/0x490 __set_task_blocked+0x5a/0x61 vm_mmap_pgoff+0x76/0x87 __set_current_blocked+0x30/0x4a sys_ioctl+0x4b/0x6f system_call_fastpath+0x16/0x1b thaw D ffff88013870d890 0 1352 1351 0x00000004 ... Call Trace: rwsem_down_failed_common+0xdb/0x10f call_rwsem_down_write_failed+0x13/0x20 down_write+0x25/0x27 thaw_super+0x13/0x9e do_vfs_ioctl+0x1f5/0x490 vm_mmap_pgoff+0x76/0x87 sys_ioctl+0x4b/0x6f filp_close+0x64/0x6c system_call_fastpath+0x16/0x1b where the thaw ioctl deadlocked at thaw_super() when called while chcp was waiting at nilfs_transaction_begin() called from nilfs_ioctl_change_cpmode(). This deadlock is 100% reproducible. This is because nilfs_ioctl_change_cpmode() first locks sb->s_umount in read mode and then waits for unfreezing in nilfs_transaction_begin(), whereas thaw_super() locks sb->s_umount in write mode. The locking of sb->s_umount here was intended to make snapshot mounts and the downgrade of snapshots to checkpoints exclusive. This fixes the deadlock issue by replacing the sb->s_umount usage in nilfs_ioctl_change_cpmode() with a dedicated mutex which protects snapshot mounts. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Tested-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* nilfs2: fix timing issue between rmcp and chcp ioctlsRyusuke Konishi2012-07-311-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | The checkpoint deletion ioctl (rmcp ioctl) has potential for breaking snapshot because it is not fully exclusive with checkpoint mode change ioctl (chcp ioctl). The rmcp ioctl first tests if the specified checkpoint is a snapshot or not within nilfs_cpfile_delete_checkpoint function, and then calls nilfs_cpfile_delete_checkpoints function to actually invalidate the checkpoint only if it's not a snapshot. However, the checkpoint can be changed into a snapshot by the chcp ioctl between these two operations. In that case, calling nilfs_cpfile_delete_checkpoints() wrongly invalidates the snapshot, which leads to snapshot list corruption and snapshot count mismatch. This fixes the issue by changing nilfs_cpfile_delete_checkpoints() so that it reconfirms the target checkpoints are snapshot or not. This second check is exclusive with the chcp operation since it is protected by an existing semaphore. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* nilfs2: remove references to long gone super operationsFernando Luis Vazquez Cao2012-07-311-3/+0
| | | | | | | | | | | ->delete_inode(), ->write_super_lockfs(), ->unlockfs() are gone so remove references to them in the NTFS code. Noticed while cleaning up the fsfreeze mess. Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> 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>
* nilfs2: add omitted comment for ns_mount_state field of the_nilfs structureVyacheslav Dubeyko2012-07-311-0/+1
| | | | | | | | | Add omitted comment for ns_mount_state field of the_nilfs structure. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> 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>
* minixfs: fix block limit checkVladimir Serbinenko2012-07-311-1/+2
| | | | | | | | | | | | On minix2 and minix3 usually max_size is 7fffffff and the check in question prohibits creation of last block spanning right before 7fffffff, due to downward rounding during the division. Fix it by using multiplication instead. [akpm@linux-foundation.org: fix up code layout, use local `sb'] Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/rtc/rtc-pcf8563.c: add device tree supportNick Bowler2012-07-311-0/+10
| | | | | | | | | | Set the of_match_table for this driver so that devices can be described in the device tree. Signed-off-by: Nick Bowler <nbowler@elliptictech.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>
* drivers/rtc/rtc-pcf8563.c: set owner field in driver structNick Bowler2012-07-311-0/+1
| | | | | | | | | | | The owner member is supposed to be set to the module implementing the device driver, i.e., THIS_MODULE. This enables the appropriate module link in sysfs. Signed-off-by: Nick Bowler <nbowler@elliptictech.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>
* rtc/rtc-da9052: remove unneed devm_kfree callDevendra Naga2012-07-311-4/+1
| | | | | | | | | | | | Freeing will trigger when driver unloads, so using devm_kfree() is not needed. Signed-off-by: Devendra Naga <devendra.aaru@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Ashish Jangam <ashish.jangam@kpitcummins.com> Cc: David Dajun Chen <dchen@diasemi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc/mc13xxx: add support for the rtc in the mc34708 pmicUwe Kleine-König2012-07-311-0/+2
| | | | | | | Signed-off-by: Uwe Kleine-König <u.kleine-koenig@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>
* rtc/mc13xxx: use MODULE_DEVICE_TABLE instead of MODULE_ALIASUwe Kleine-König2012-07-311-2/+2
| | | | | | | | | This allows automatic driver loading for all supported device types. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@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>
* drivers/rtc/rtc-s3c.c: replace #include header files from asm/* to linux/*Sachin Kamat2012-07-311-2/+2
| | | | | | | | | | | Fixes the following checkpatch warnings: WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h> WARNING: Use #include <linux/io.h> instead of <asm/io.h> 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>
* drivers/rtc/rtc-r9701.c: check that r9701_set_datetime() succeededAndrew Morton2012-07-311-1/+2
| | | | | | | | | | | | | | When the driver detects that the clock time is invalid, it attempts to write a sane time into the hardware. We curently assume that everything is OK if those writes succeeded. But it is better to re-read the time from the hardware to ensure that the new settings got there OK. Cc: Devendra Naga <devendra.aaru@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Anatolij Gustschin <agust@denx.de> Cc: Andreas Dumberger <andreas.dumberger@tqs.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/rtc/rtc-r9701.c: avoid second call to rtc_valid_tm()Devendra Naga2012-07-311-2/+1
| | | | | | | | | | | | | r9701_get_datetime() calls rtc_valid_tm() and returns the value returned by rtc_valid_tm(), which can be used in the `if', so calling rtc_valid_tm() a second time is not required. Signed-off-by: Devendra Naga <devendra.aaru@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Anatolij Gustschin <agust@denx.de> Cc: Andreas Dumberger <andreas.dumberger@tqs.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/rtc/rtc-ab8500.c: remove fix for AB8500 ED versionBengt Jonsson2012-07-311-16/+11
| | | | | | | | | | AB8500 ED (Early Drop) is no longer supported by the kernel. Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.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>
* drivers/rtc/rtc-ab8500.c: use UIE emulationRamesh Chandrasekaran2012-07-312-1/+15
| | | | | | | | | | | | RTC: Fix to correct improper implementation of clock update irq (RTC_UIE) and enable UIE Emulation. [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: Ramesh Chandrasekaran <ramesh.chandrasekaran@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.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>
* rtc: pl031: fix up IRQ flagsMattias Wallin2012-07-311-1/+10
| | | | | | | | | | | | | | | | | | The pl031 interrupt is shared between the timer part and the clockwatch part of the same HW block on the ux500, so mark it IRQF_SHARED on this variant. This patch also adds the IRQF_NO_SUSPEND flag to the rtc irq on all variants as we don't want this pretty important IRQ to be disabled in suspend. Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Rickard Andersson <rickard.andersson@stericsson.com> Reviewed-by: Jonas Aberg <jonas.aberg@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>
* rtc: pl031: use per-vendor variables for special initLinus Walleij2012-07-311-9/+14
| | | | | | | | | | | | Instead of hard-checking for certain vendor codes, follow the pattern of other AMBA (PrimeCell) drivers and use variables in the vendor data. Get rid of the locally cached vendor and hardware revision since we already have the nice vendor data variable in the state. Signed-off-by: Linus Walleij <linus.walleij@linaro.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>
* rtc: pl031: encapsulate per-vendor opsLinus Walleij2012-07-311-22/+39
| | | | | | | | | | Move the per-vendor operations for this RTC into a encapsulating struct so we can have more per-vendor variables than just the ops. Signed-off-by: Linus Walleij <linus.walleij@linaro.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>
* drivers/rtc/rtc-coh901331.c: use devm allocationLinus Walleij2012-07-311-35/+15
| | | | | | | | | | Allocate memory, region, remap and irq for device state using devm_* helpers to simplify memory accounting. Signed-off-by: Linus Walleij <linus.walleij@linaro.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>
* drivers/rtc/rtc-coh901331.c: use clk_prepare/unprepareLinus Walleij2012-07-311-3/+8
| | | | | | | | | | Make sure we prepare/unprepare the clock for the COH901331 RTC driver as is required by the clk API especially if you use common clock. Signed-off-by: Linus Walleij <linus.walleij@linaro.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>
* drivers/message/i2o/i2o_config.c: bound allocationAlan Cox2012-07-311-0/+7
| | | | | | | | | Fix a case where users can try to allocate arbitarily large amounts of memory. 64K is overkill for a config request so apply an upper bound. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/message/i2o/i2o_proc.c: the pointer returned from chtostr() points ↵Kamil Dudka2012-07-311-15/+22
| | | | | | | | | | | | to an array which is no longer valid ... when being used in the calling function. Although it may work, the behavior is undefined. Detected by cppcheck. Signed-off-by: Kamil Dudka <kdudka@redhat.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* lib/crc32.c: fix unused variables warningsThiago Rafael Becker2012-07-311-0/+2
| | | | | | | | | | | | | | | | | Variables t4, t5, t6 and t7 are only used when CRC_LE_BITS != 32. Fix the following compilation warnings: lib/crc32.c: In function 'crc32_body': lib/crc32.c:77:55: warning: unused variable 't7' lib/crc32.c:77:41: warning: unused variable 't6' lib/crc32.c:77:27: warning: unused variable 't5' lib/crc32.c:77:13: warning: unused variable 't4' Signed-off-by: Thiago Rafael Becker <trbecker@trbecker.org> Cc: "Darrick J. Wong" <djwong@us.ibm.com> Cc: Bob Pearson <rpearson@systemfabricworks.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* checkpatch: add checks for do {} while (0) macro misusesJoe Perches2012-07-311-0/+39
| | | | | | | | | | | | These types of macros should not be used for either a single statement nor should the macro end with a semi-colon. Add tests for these conditions. 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>
* checkpatch: Add acheck for use of sizeof without parenthesisJoe Perches2012-07-311-0/+6
| | | | | | | | | Kernel style uses parenthesis around sizeof. 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>
* checkpatch: check usleep_range() argumentsJoe Perches2012-07-311-0/+16
| | | | | | | | | | | | usleep_range() shouldn't use the same args for min and max. Report it when it happens and when both args are decimal and min > max. Signed-off-by: Joe Perches <joe@perches.com> Cc: Yuval Mintz <yuvalmin@broadcom.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* checkpatch: test for non-standard signaturesJoe Perches2012-07-311-1/+5
| | | | | | | | Warn on non-standard signature styles. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* checkpatch: Update alignment checkJoe Perches2012-07-311-2/+2
| | | | | | | | | | | | Parenthesis alignment doesn't correctly check an existing line after an inserted or modified line with an open parenthesis. Fix it. 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>
* firmware_map: make firmware_map_add_early() argument consistent with ↵Yasuaki Ishimatsu2012-07-312-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | firmware_map_add_hotplug() There are two ways to create /sys/firmware/memmap/X sysfs: - firmware_map_add_early When the system starts, it is calledd from e820_reserve_resources() - firmware_map_add_hotplug When the memory is hot plugged, it is called from add_memory() But these functions are called without unifying value of end argument as below: - end argument of firmware_map_add_early() : start + size - 1 - end argument of firmware_map_add_hogplug() : start + size The patch unifies them to "start + size". Even if applying the patch, /sys/firmware/memmap/X/end file content does not change. [akpm@linux-foundation.org: clarify comments] Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Reviewed-by: Dave Hansen <dave@linux.vnet.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: H. Peter Anvin <hpa@zytor.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>
* spinlock_debug: print offset in addition to symbol nameStephen Boyd2012-07-311-1/+1
| | | | | | | | | | | | If there are two spinlocks embedded in a structure that kallsyms knows about and one of the spinlocks locks up we will print the name of the containing structure instead of the address of the lock. This is quite bad, so let's use %pS instead of %ps so we get an offset in addition to the symbol so we can determine which particular lock is having problems. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* atomic64_test: simplify the #ifdef for atomic64_dec_if_positive() testCatalin Marinas2012-07-317-3/+10
| | | | | | | | | | | | | Introduce CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE and use this instead of the multitude of #if defined() checks in atomic64_test.c Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ext4: use memweight()Akinobu Mita2012-07-311-8/+1
| | | | | | | | | | | | | | | | | | | | | | | Convert ext4_count_free() to use memweight() instead of table lookup based counting clear bits implementation. This change only affects the code segments enabled by EXT4FS_DEBUG. Note that this memweight() call can't be replaced with a single bitmap_weight() call, although the pointer to the memory area is aligned to long-word boundary. Because the size of the memory area may not be a multiple of BITS_PER_LONG, then it returns wrong value on big-endian architecture. This also includes the following change. - Remove unnecessary map == NULL check in ext4_count_free() which always takes non-null pointer as the memory area. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Andreas Dilger <adilger.kernel@dilger.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ext3: use memweight()Akinobu Mita2012-07-312-12/+2
| | | | | | | | | | | | | | | | | | | | | | | | | Convert ext3_count_free() to use memweight() instead of table lookup based counting clear bits implementation. This change only affects the code segments enabled by EXT3FS_DEBUG. Note that this memweight() call can't be replaced with a single bitmap_weight() call, although the pointer to the memory area is aligned to long-word boundary. Because the size of the memory area may not be a multiple of BITS_PER_LONG, then it returns wrong value on big-endian architecture. This also includes the following changes. - Remove unnecessary map == NULL check in ext3_count_free() which always takes non-null pointer as the memory area. - Fix printk format warning that only reveals with EXT3FS_DEBUG. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Cc: Andreas Dilger <adilger.kernel@dilger.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ext2: use memweight()Akinobu Mita2012-07-312-12/+3
| | | | | | | | | | | | | | | | | | | | | | | | Convert ext2_count_free() to use memweight() instead of table lookup based counting clear bits implementation. This change only affects the code segments enabled by EXT2FS_DEBUG. Note that this memweight() call can't be replaced with a single bitmap_weight() call, although the pointer to the memory area is aligned to long-word boundary. Because the size of the memory area may not be a multiple of BITS_PER_LONG, then it returns wrong value on big-endian architecture. This also includes the following changes. - Remove unnecessary map == NULL check in ext2_count_free() which always takes non-null pointer as the memory area. - Fix printk format warning that only reveals with EXT2FS_DEBUG. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ocfs2: use memweight()Akinobu Mita2012-07-311-6/+2
| | | | | | | | | | Use memweight to count the total number of bits set in memory area. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* video/uvc: use memweight()Akinobu Mita2012-07-311-3/+2
| | | | | | | | | | Use memweight() to count the total number of bits set in memory area. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* affs: use memweight()Akinobu Mita2012-07-311-26/+2
| | | | | | | | Use memweight() to count the total number of bits set in memory area. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dm: use memweight()Akinobu Mita2012-07-311-11/+2
| | | | | | | | | Use memweight() to count the total number of bits set in memory area. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Alasdair Kergon <agk@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* qnx4fs: use memweight()Akinobu Mita2012-07-311-19/+5
| | | | | | | | | | | | | | | Use memweight() to count the total number of bits clear in memory area. Note that this memweight() call can't be replaced with a single bitmap_weight() call, although the pointer to the memory area is aligned to long-word boundary. Because the size of the memory area may not be a multiple of BITS_PER_LONG, then it returns wrong value on big-endian architecture. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Anders Larsen <al@alarsen.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* string: introduce memweight()Akinobu Mita2012-07-313-1/+42
| | | | | | | | | | | | | | | | | | | | | | | memweight() is the function that counts the total number of bits set in memory area. Unlike bitmap_weight(), memweight() takes pointer and size in bytes to specify a memory area which does not need to be aligned to long-word boundary. [akpm@linux-foundation.org: rename `w' to `ret'] Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Anders Larsen <al@alarsen.net> Cc: Alasdair Kergon <agk@redhat.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Jan Kara <jack@suse.cz> Cc: Andreas Dilger <adilger.kernel@dilger.ca> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Tony Luck <tony.luck@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* backlight: move lp855x header into platform_data directoryKim, Milo2012-07-312-1/+1
| | | | | | | | | | | The lp855x header is used only in the platform side, so it can be moved into platform_data directory Signed-off-by: Milo(Woogyom) Kim <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>
* backlight: move register definitions from header to sourceKim, Milo2012-07-312-8/+6
| | | | | | | | | | | | | ROM boundary definitions do not need to be exported because these are used only internally in the lp855x driver. And few code cosmetic changes Signed-off-by: Milo(Woogyom) Kim <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>
* backlight: l4f00242t03: export and use devm_gpio_request_one()Jingoo Han2012-07-311-19/+10
| | | | | | | | | | | | The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_gpio_request_one() for these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Alberto Panizzo <alberto@amarulasolutions.com> Cc: Richard Purdie <rpurdie@rpsys.net> 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>
* backlight: corgi_lcd: use devm_gpio_request()Jingoo Han2012-07-311-14/+5
| | | | | | | | | | | The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_gpio_request() for 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>
* backlight: lms283gf05: use devm_gpio_request()Jingoo Han2012-07-311-18/+6
| | | | | | | | | | | The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_gpio_request() for 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>
* backlight: tosa_bl: use devm_gpio_request()Jingoo Han2012-07-311-6/+2
| | | | | | | | | | | The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_gpio_request() for 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>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 11:59:57 +0100