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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2011-10-31 17:08:07 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-31 17:30:47 -0700 |
| commit | 798248206b59acc6e1238c778281419c041891a7 (patch) | |
| tree | ff8564431367b442b18bca4a0a9732e5799e2391 /fs/logfs/logfs.h | |
| parent | 77311139f364d7f71fc9ba88f59fd90e60205007 (diff) | |
| download | linux-798248206b59acc6e1238c778281419c041891a7.tar.gz linux-798248206b59acc6e1238c778281419c041891a7.tar.bz2 linux-798248206b59acc6e1238c778281419c041891a7.zip | |
lib/string.c: introduce memchr_inv()
memchr_inv() is mainly used to check whether the whole buffer is filled
with just a specified byte.
The function name and prototype are stolen from logfs and the
implementation is from SLUB.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Christoph Lameter <cl@linux-foundation.org>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Matt Mackall <mpm@selenic.com>
Acked-by: Joern Engel <joern@logfs.org>
Cc: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/logfs/logfs.h')
| -rw-r--r-- | fs/logfs/logfs.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/logfs/logfs.h b/fs/logfs/logfs.h index f22d108bfa5d..398ecff6e548 100644 --- a/fs/logfs/logfs.h +++ b/fs/logfs/logfs.h @@ -618,7 +618,6 @@ static inline int logfs_buf_recover(struct logfs_area *area, u64 ofs, struct page *emergency_read_begin(struct address_space *mapping, pgoff_t index); void emergency_read_end(struct page *page); void logfs_crash_dump(struct super_block *sb); -void *memchr_inv(const void *s, int c, size_t n); int logfs_statfs(struct dentry *dentry, struct kstatfs *stats); int logfs_check_ds(struct logfs_disk_super *ds); int logfs_write_sb(struct super_block *sb); |