diff options
| author |   Benjamin LaHaise <bcrl@linux.intel.com> | 2006-03-23 03:01:03 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-23 07:38:17 -0800 |
| commit | 5a6b7951bfcca7f45f44269ea87417c74558daf8 (patch) | |
| tree | f9cc8b3f89c89802e81b37d77c6f698e373bfe51 /include/linux/eventpoll.h | |
| parent | [PATCH] atomic: add_unless cmpxchg optimise (diff) | |
| download | linux-dev-5a6b7951bfcca7f45f44269ea87417c74558daf8.tar.xz linux-dev-5a6b7951bfcca7f45f44269ea87417c74558daf8.zip | |
[PATCH] get_empty_filp tweaks, inline epoll_init_file()
Eliminate a handful of cache references by keeping current in a register
instead of reloading (helps x86) and avoiding the overhead of a function
call. Inlining eventpoll_init_file() saves 24 bytes. Also reorder file
initialization to make writes occur more sequentially.
Signed-off-by: Benjamin LaHaise <bcrl@linux.intel.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to '')
| -rw-r--r-- | include/linux/eventpoll.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/eventpoll.h b/include/linux/eventpoll.h index 1289f0ec4c00..1e4bdfcf83a2 100644 --- a/include/linux/eventpoll.h +++ b/include/linux/eventpoll.h @@ -52,7 +52,12 @@ struct file; #ifdef CONFIG_EPOLL /* Used to initialize the epoll bits inside the "struct file" */ -void eventpoll_init_file(struct file *file); +static inline void eventpoll_init_file(struct file *file) +{ + INIT_LIST_HEAD(&file->f_ep_links); + spin_lock_init(&file->f_ep_lock); +} + /* Used to release the epoll bits inside the "struct file" */ void eventpoll_release_file(struct file *file); @@ -85,7 +90,6 @@ static inline void eventpoll_release(struct file *file) eventpoll_release_file(file); } - #else static inline void eventpoll_init_file(struct file *file) {} |