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authorLinus Torvalds <torvalds@linux-foundation.org>2010-11-28 14:09:57 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-11-28 14:09:57 -0800
commitc66fb347946ebdd5b10908866ecc9fa05ee2cf3d (patch)
tree1891142352d75dcf58a1e90d8dde4d4a99c6e266 /fs/pipe.c
parent71993e62a47dabddf10302807d6aa260455503f4 (diff)
downloadblackbird-op-linux-c66fb347946ebdd5b10908866ecc9fa05ee2cf3d.tar.gz
blackbird-op-linux-c66fb347946ebdd5b10908866ecc9fa05ee2cf3d.zip
Export 'get_pipe_info()' to other users
And in particular, use it in 'pipe_fcntl()'. The other pipe functions do not need to use the 'careful' version, since they are only ever called for things that are already known to be pipes. The normal read/write/ioctl functions are called through the file operations structures, so if a file isn't a pipe, they'd never get called. But pipe_fcntl() is special, and called directly from the generic fcntl code, and needs to use the same careful function that the splice code is using. Cc: Jens Axboe <jaxboe@fusionio.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/pipe.c')
-rw-r--r--fs/pipe.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/pipe.c b/fs/pipe.c
index a8012a955720..b8997f8c6324 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -1204,7 +1204,7 @@ long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
struct pipe_inode_info *pipe;
long ret;
- pipe = file->f_path.dentry->d_inode->i_pipe;
+ pipe = get_pipe_info(file);
if (!pipe)
return -EBADF;
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