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| author | Richard Kennedy <richard@rsk.demon.co.uk> | 2010-10-20 15:57:30 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-10-21 17:30:06 +0200 |
| commit | d0959024d8fb6555ba8bfdc6624cc7b7c2e675fd (patch) | |
| tree | f6729801645149d78e9e7b8b80e96417e539ce48 /include/linux/timer.h | |
| parent | a386b5af8edda1c742ce9f77891e112eefffc005 (diff) | |
| download | op-kernel-dev-d0959024d8fb6555ba8bfdc6624cc7b7c2e675fd.zip op-kernel-dev-d0959024d8fb6555ba8bfdc6624cc7b7c2e675fd.tar.gz | |
timer_list: Remove alignment padding on 64 bit when CONFIG_TIMER_STATS
Reorder struct timer_list to remove 8 bytes of alignment padding on 64
bit builds when CONFIG_TIMER_STATS is selected.
timer_list is widely used across the kernel so many structures will
benefit and shrink in size.
For example, with my config on x86_64
per_cpu_dm_data shrinks from 136 to 128 bytes
and
ahci_port_priv shrinks from 1032 to 968 bytes.
Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/timer.h')
| -rw-r--r-- | include/linux/timer.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/timer.h b/include/linux/timer.h index 38cf093..f3dccdb 100644 --- a/include/linux/timer.h +++ b/include/linux/timer.h @@ -24,9 +24,9 @@ struct timer_list { int slack; #ifdef CONFIG_TIMER_STATS + int start_pid; void *start_site; char start_comm[16]; - int start_pid; #endif #ifdef CONFIG_LOCKDEP struct lockdep_map lockdep_map; |
