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authorMiklos Szeredi <miklos@szeredi.hu>2009-04-14 19:48:39 +0200
committerJens Axboe <jens.axboe@oracle.com>2009-04-15 12:10:12 +0200
commit328eaaba4e41a04c1dc4679d65bea3fee4349d86 (patch)
tree171bf86b590a841729bab11feec874869bcab49e /fs/splice.c
parenteb443e5a25d43996deb62b9bcee1a4ce5dea2ead (diff)
ocfs2: fix i_mutex locking in ocfs2_splice_to_file()
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>
Diffstat (limited to 'fs/splice.c')
-rw-r--r--fs/splice.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/splice.c b/fs/splice.c
index a1f595b9db4..584b2b7a1db 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -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)
{