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ocfs2: fix i_mutex locking in ocfs2_splice_to_file()

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Rearrange locking of i_mutex on destination and call to
ocfs2_rw_lock() so locks are only held while buffers are copied with
the pipe_to_file() actor, and not while waiting for more data on the
pipe.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Miklos Szeredi
2009-04-14 19:48:39 +02:00
committed by Jens Axboe
parent eb443e5a25
commit 328eaaba4e
3 changed files with 81 additions and 24 deletions
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fs/splice.c
+3 -2
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@@ -555,8 +555,8 @@ static int pipe_to_sendpage(struct pipe_inode_info *pipe,
* SPLICE_F_MOVE isn't set, or we cannot move the page, we simply create
* a new page in the output file page cache and fill/dirty that.
*/
static int pipe_to_file(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
struct splice_desc *sd)
int pipe_to_file(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
struct splice_desc *sd)
{
struct file *file = sd->u.file;
struct address_space *mapping = file->f_mapping;
@@ -600,6 +600,7 @@ static int pipe_to_file(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
out:
return ret;
}
EXPORT_SYMBOL(pipe_to_file);
static void wakeup_pipe_writers(struct pipe_inode_info *pipe)
{