aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2010-11-28 19:27:19 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2010-11-28 19:27:19 -0500
commit72083646528d4887b920deb71b37e09bc7d227bb (patch)
tree84a650b474530ae2d2d72614899532757d4bb961
parentc66fb347946ebdd5b10908866ecc9fa05ee2cf3d (diff)
Un-inline get_pipe_info() helper function
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>
-rw-r--r--fs/pipe.c12
-rw-r--r--include/linux/pipe_fs_i.h13
2 files changed, 13 insertions, 12 deletions
diff --git a/fs/pipe.c b/fs/pipe.c
index b8997f8c632..04629f36e39 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -1199,6 +1199,18 @@ int pipe_proc_fn(struct ctl_table *table, int write, void __user *buf,
1199 return ret; 1199 return ret;
1200} 1200}
1201 1201
1202/*
1203 * After the inode slimming patch, i_pipe/i_bdev/i_cdev share the same
1204 * location, so checking ->i_pipe is not enough to verify that this is a
1205 * pipe.
1206 */
1207struct pipe_inode_info *get_pipe_info(struct file *file)
1208{
1209 struct inode *i = file->f_path.dentry->d_inode;
1210
1211 return S_ISFIFO(i->i_mode) ? i->i_pipe : NULL;
1212}
1213
1202long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg) 1214long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
1203{ 1215{
1204 struct pipe_inode_info *pipe; 1216 struct pipe_inode_info *pipe;
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index 3c5ac314742..bb27d7ec2fb 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -160,17 +160,6 @@ void generic_pipe_buf_release(struct pipe_inode_info *, struct pipe_buffer *);
160 160
161/* for F_SETPIPE_SZ and F_GETPIPE_SZ */ 161/* for F_SETPIPE_SZ and F_GETPIPE_SZ */
162long pipe_fcntl(struct file *, unsigned int, unsigned long arg); 162long pipe_fcntl(struct file *, unsigned int, unsigned long arg);
163 163struct pipe_inode_info *get_pipe_info(struct file *file);
164/*
165 * After the inode slimming patch, i_pipe/i_bdev/i_cdev share the same
166 * location, so checking ->i_pipe is not enough to verify that this is a
167 * pipe.
168 */
169static inline struct pipe_inode_info *get_pipe_info(struct file *file)
170{
171 struct inode *i = file->f_path.dentry->d_inode;
172
173 return S_ISFIFO(i->i_mode) ? i->i_pipe : NULL;
174}
175 164
176#endif 165#endif