Commit e2b689d8 authored Dec 04, 2008 by Richard Kennedy Committed by Al Viro Dec 31, 2008

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>

parent be6d3e56

fs/inotify_user.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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 */