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| author | Tao Ma <boyu.mt@taobao.com> | 2011-10-30 18:26:08 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2011-10-30 18:26:08 -0400 |
| commit | d73d5046a72467d4510825b99e2269e09ad80e15 (patch) | |
| tree | 4ac8b5729e1aeffe8348557a7f77da1791c268cc /fs/ext4/fsync.c | |
| parent | 6d6a435190bdf2e04c9465cde5bdc3ac68cf11a4 (diff) | |
| download | op-kernel-dev-d73d5046a72467d4510825b99e2269e09ad80e15.zip op-kernel-dev-d73d5046a72467d4510825b99e2269e09ad80e15.tar.gz | |
ext4: Use correct locking for ext4_end_io_nolock()
We must hold i_completed_io_lock when manipulating anything on the
i_completed_io_list linked list. This includes io->lock, which we
were checking in ext4_end_io_nolock().
So move this check to ext4_end_io_work(). This also has the bonus of
avoiding extra work if it is already done without needing to take the
mutex.
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/fsync.c')
| -rw-r--r-- | fs/ext4/fsync.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c index c942924..851ac5b 100644 --- a/fs/ext4/fsync.c +++ b/fs/ext4/fsync.c @@ -83,9 +83,6 @@ int ext4_flush_completed_IO(struct inode *inode) int ret = 0; int ret2 = 0; - if (list_empty(&ei->i_completed_io_list)) - return ret; - dump_completed_IO(inode); spin_lock_irqsave(&ei->i_completed_io_lock, flags); while (!list_empty(&ei->i_completed_io_list)){ |
