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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-20 17:02:14 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-20 17:02:14 -0800 |
commit | 8d99641f6c1af806cd5d9e6badce91910219a161 (patch) | |
tree | ee841f807005a4a6234f6f502a13185d13a34870 /fs | |
parent | fc887b15d935ead2a00aef5779a18034e7c69ee1 (diff) | |
parent | 225c8e010f2d17a62aef131e24c6e7c111f36f9b (diff) | |
download | linux-3.10-8d99641f6c1af806cd5d9e6badce91910219a161.tar.gz linux-3.10-8d99641f6c1af806cd5d9e6badce91910219a161.tar.bz2 linux-3.10-8d99641f6c1af806cd5d9e6badce91910219a161.zip |
Merge branch 'akpm'
* akpm:
kernel/smp.c: consolidate writes in smp_call_function_interrupt()
kernel/smp.c: fix smp_call_function_many() SMP race
memcg: correctly order reading PCG_USED and pc->mem_cgroup
backlight: fix 88pm860x_bl macro collision
drivers/leds/ledtrig-gpio.c: make output match input, tighten input checking
MAINTAINERS: update Atmel AT91 entry
mm: fix truncate_setsize() comment
memcg: fix rmdir, force_empty with THP
memcg: fix LRU accounting with THP
memcg: fix USED bit handling at uncharge in THP
memcg: modify accounting function for supporting THP better
fs/direct-io.c: don't try to allocate more than BIO_MAX_PAGES in a bio
mm: compaction: prevent division-by-zero during user-requested compaction
mm/vmscan.c: remove duplicate include of compaction.h
memblock: fix memblock_is_region_memory()
thp: keep highpte mapped until it is no longer needed
kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT
Diffstat (limited to 'fs')
-rw-r--r-- | fs/Kconfig | 2 | ||||
-rw-r--r-- | fs/direct-io.c | 10 | ||||
-rw-r--r-- | fs/proc/Kconfig | 6 | ||||
-rw-r--r-- | fs/sysfs/Kconfig | 2 |
4 files changed, 12 insertions, 8 deletions
diff --git a/fs/Kconfig b/fs/Kconfig index 9a7921ae476..3db9caa57ed 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -50,7 +50,7 @@ config EXPORTFS tristate config FILE_LOCKING - bool "Enable POSIX file locking API" if EMBEDDED + bool "Enable POSIX file locking API" if EXPERT default y help This option enables standard file locking support, required diff --git a/fs/direct-io.c b/fs/direct-io.c index 85882f6ba5f..b044705eedd 100644 --- a/fs/direct-io.c +++ b/fs/direct-io.c @@ -325,12 +325,16 @@ void dio_end_io(struct bio *bio, int error) } EXPORT_SYMBOL_GPL(dio_end_io); -static int +static void dio_bio_alloc(struct dio *dio, struct block_device *bdev, sector_t first_sector, int nr_vecs) { struct bio *bio; + /* + * bio_alloc() is guaranteed to return a bio when called with + * __GFP_WAIT and we request a valid number of vectors. + */ bio = bio_alloc(GFP_KERNEL, nr_vecs); bio->bi_bdev = bdev; @@ -342,7 +346,6 @@ dio_bio_alloc(struct dio *dio, struct block_device *bdev, dio->bio = bio; dio->logical_offset_in_bio = dio->cur_page_fs_offset; - return 0; } /* @@ -583,8 +586,9 @@ static int dio_new_bio(struct dio *dio, sector_t start_sector) goto out; sector = start_sector << (dio->blkbits - 9); nr_pages = min(dio->pages_in_io, bio_get_nr_vecs(dio->map_bh.b_bdev)); + nr_pages = min(nr_pages, BIO_MAX_PAGES); BUG_ON(nr_pages <= 0); - ret = dio_bio_alloc(dio, dio->map_bh.b_bdev, sector, nr_pages); + dio_bio_alloc(dio, dio->map_bh.b_bdev, sector, nr_pages); dio->boundary = 0; out: return ret; diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig index 6a0068841d9..15af6222f8a 100644 --- a/fs/proc/Kconfig +++ b/fs/proc/Kconfig @@ -1,5 +1,5 @@ config PROC_FS - bool "/proc file system support" if EMBEDDED + bool "/proc file system support" if EXPERT default y help This is a virtual file system providing information about the status @@ -40,7 +40,7 @@ config PROC_VMCORE Exports the dump image of crashed kernel in ELF format. config PROC_SYSCTL - bool "Sysctl support (/proc/sys)" if EMBEDDED + bool "Sysctl support (/proc/sys)" if EXPERT depends on PROC_FS select SYSCTL default y @@ -61,7 +61,7 @@ config PROC_SYSCTL config PROC_PAGE_MONITOR default y depends on PROC_FS && MMU - bool "Enable /proc page monitoring" if EMBEDDED + bool "Enable /proc page monitoring" if EXPERT help Various /proc files exist to monitor process memory utilization: /proc/pid/smaps, /proc/pid/clear_refs, /proc/pid/pagemap, diff --git a/fs/sysfs/Kconfig b/fs/sysfs/Kconfig index f4b67588b9d..8c41feacbac 100644 --- a/fs/sysfs/Kconfig +++ b/fs/sysfs/Kconfig @@ -1,5 +1,5 @@ config SYSFS - bool "sysfs file system support" if EMBEDDED + bool "sysfs file system support" if EXPERT default y help The sysfs filesystem is a virtual filesystem that the kernel uses to |