diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-11-28 16:27:19 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-12-09 13:33:36 -0800 |
| commit | 2df3be967ddea904bb5a9be1268ac34d4bbd1524 (patch) | |
| tree | 78d3f0b35de5401b504183b70ad2a556ef532136 /fs | |
| parent | de6b16236165008032ee3ed7db24b9ad9600e0eb (diff) | |
Un-inline get_pipe_info() helper function
commit 72083646528d4887b920deb71b37e09bc7d227bb upstream.
This avoids some include-file hell, and the function isn't really
important enough to be inlined anyway.
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/pipe.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/pipe.c b/fs/pipe.c index 2665dba3fc22..a58d7ee7ad18 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -1197,6 +1197,18 @@ int pipe_proc_fn(struct ctl_table *table, int write, void __user *buf, return ret; } +/* + * After the inode slimming patch, i_pipe/i_bdev/i_cdev share the same + * location, so checking ->i_pipe is not enough to verify that this is a + * pipe. + */ +struct pipe_inode_info *get_pipe_info(struct file *file) +{ + struct inode *i = file->f_path.dentry->d_inode; + + return S_ISFIFO(i->i_mode) ? i->i_pipe : NULL; +} + long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg) { struct pipe_inode_info *pipe; |