diff options
authorRichard Kennedy <richard@rsk.demon.co.uk>2008-12-04 11:17:47 +0000
committerAl Viro <viro@zeniv.linux.org.uk>2008-12-31 18:07:37 -0500
commite2b689d82c0394e5239a3557a217f19e2f47f1be (patch)
parentbe6d3e56a6b9b3a4ee44a0685e39e595073c6f0d (diff)
fs: reorder struct inotify_device on 64bits to remove padding
Reorder struct inotify_device to remove 8 bytes of padding on 64bit builds, reducing size to 128 bytes . Therefore allocating from a smaller slab & using one fewer cachelines. Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk> ---- Hi, patch against 2.6.28-rc7. built & tested on AMDX2 desktop. I've not been able to send this to the listed inotify maintainers, I just get mail failures. So I guessed filesystem was the best home for it, hope that's ok. regards Richard Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/inotify_user.c b/fs/inotify_user.c
index e2425bbd871..400f8064a54 100644
--- a/fs/inotify_user.c
+++ b/fs/inotify_user.c
@@ -76,10 +76,10 @@ struct inotify_device {
struct mutex ev_mutex; /* protects event queue */
struct mutex up_mutex; /* synchronizes watch updates */
struct list_head events; /* list of queued events */
- atomic_t count; /* reference count */
struct user_struct *user; /* user who opened this dev */
struct inotify_handle *ih; /* inotify handle */
struct fasync_struct *fa; /* async notification */
+ atomic_t count; /* reference count */
unsigned int queue_size; /* size of the queue (bytes) */
unsigned int event_count; /* number of pending events */
unsigned int max_events; /* maximum number of events */