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| author | Dmitry Monakhov <dmonakhov@openvz.org> | 2009-12-14 15:21:12 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-01-06 15:05:01 -0800 |
| commit | f07c88dd6cbcc8086e28759f3686068163d423ae (patch) | |
| tree | 964b70e0af083df882ad39c05b17bcb49893ea36 /fs | |
| parent | 0aebc28083514af318c438fccc8a7ae23b4e1ab8 (diff) | |
| download | lwn-f07c88dd6cbcc8086e28759f3686068163d423ae.tar.gz lwn-f07c88dd6cbcc8086e28759f3686068163d423ae.zip | |
Add unlocked version of inode_add_bytes() function
commit b462707e7ccad058ae151e5c5b06eb5cadcb737f upstream.
Quota code requires unlocked version of this function. Off course
we can just copy-paste the code, but copy-pasting is always an evil.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/stat.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/stat.c b/fs/stat.c index 075694e31d8b..c4ecd52c5737 100644 --- a/fs/stat.c +++ b/fs/stat.c @@ -401,9 +401,9 @@ SYSCALL_DEFINE4(fstatat64, int, dfd, char __user *, filename, } #endif /* __ARCH_WANT_STAT64 */ -void inode_add_bytes(struct inode *inode, loff_t bytes) +/* Caller is here responsible for sufficient locking (ie. inode->i_lock) */ +void __inode_add_bytes(struct inode *inode, loff_t bytes) { - spin_lock(&inode->i_lock); inode->i_blocks += bytes >> 9; bytes &= 511; inode->i_bytes += bytes; @@ -411,6 +411,12 @@ void inode_add_bytes(struct inode *inode, loff_t bytes) inode->i_blocks++; inode->i_bytes -= 512; } +} + +void inode_add_bytes(struct inode *inode, loff_t bytes) +{ + spin_lock(&inode->i_lock); + __inode_add_bytes(inode, bytes); spin_unlock(&inode->i_lock); } |