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| author | Takashi Iwai | 2010-12-13 09:29:52 +0100 |
|---|---|---|
| committer | Takashi Iwai | 2010-12-13 09:29:52 +0100 |
| commit | 354d14b3f53cc749c5d26d4ba7280d1e931d6bc4 (patch) | |
| tree | 59b597e44902d8db8bde7deac1e7e707327c6fe6 /fs/pipe.c | |
| parent | ALSA: aoa: Remove wrong i2c_set_clientdata in onyx_i2c_remove() (diff) | |
| parent | sound: don't use flush_scheduled_work() (diff) | |
| download | kernel-qcow2-linux-354d14b3f53cc749c5d26d4ba7280d1e931d6bc4.tar.gz kernel-qcow2-linux-354d14b3f53cc749c5d26d4ba7280d1e931d6bc4.tar.xz kernel-qcow2-linux-354d14b3f53cc749c5d26d4ba7280d1e931d6bc4.zip | |
Merge branch 'topic/workq-update' into topic/misc
Diffstat (limited to 'fs/pipe.c')
| -rw-r--r-- | fs/pipe.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/fs/pipe.c b/fs/pipe.c index a8012a955720..04629f36e397 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -1199,12 +1199,24 @@ 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; long ret; - pipe = file->f_path.dentry->d_inode->i_pipe; + pipe = get_pipe_info(file); if (!pipe) return -EBADF; |