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authorRichard Kennedy <richard@rsk.demon.co.uk>2010-10-20 15:57:30 -0700
committerThomas Gleixner <tglx@linutronix.de>2010-10-21 17:30:06 +0200
commitd0959024d8fb6555ba8bfdc6624cc7b7c2e675fd (patch)
treef6729801645149d78e9e7b8b80e96417e539ce48 /include/linux/timer.h
parenta386b5af8edda1c742ce9f77891e112eefffc005 (diff)
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.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/timer.h b/include/linux/timer.h
index 38cf093ef62..f3dccdb44f9 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;