Commit 0a3404dc authored Jan 28, 2013 by Miao Xie Committed by Josef Bacik Feb 05, 2013

Btrfs: fix wrong sync_writers decrement in btrfs_file_aio_write()



If the checks at the beginning of btrfs_file_aio_write() fail, we needn't
decrease ->sync_writers, because we have not increased it. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

parent 222c81dc

fs/btrfs/file.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1595,9 +1595,10 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
		if (err < 0 && num_written > 0)
		num_written = err;
		}
		out:

		if (sync)
		atomic_dec(&BTRFS_I(inode)->sync_writers);
		out:
		sb_end_write(inode->i_sb);
		current->backing_dev_info = NULL;
		return num_written ? num_written : err;