projects
/
GitHub
/
mt8127
/
android_kernel_alcatel_ttab.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
| inline |
side by side
(parent:
6ffc787
)
speed up jiffies conversion functions if HZ==USER_HZ
author
Andrew Morton
<akpm@linux-foundation.org>
Wed, 6 Feb 2008 09:38:06 +0000
(
01:38
-0800)
committer
Linus Torvalds
<torvalds@woody.linux-foundation.org>
Wed, 6 Feb 2008 18:41:10 +0000
(10:41 -0800)
Avoid calling do_div(x, 1) in this case.
Cc: David Fries <david@fries.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/time.c
patch
|
blob
|
blame
|
history
diff --git
a/kernel/time.c
b/kernel/time.c
index be5c8cb935824e5b83e9529c0255d9bf20f8e504..33af3e55570dfc5d8fe74aba067d2e26591c1a91 100644
(file)
--- a/
kernel/time.c
+++ b/
kernel/time.c
@@
-606,8
+606,10
@@
u64 jiffies_64_to_clock_t(u64 x)
# if HZ < USER_HZ
x *= USER_HZ;
do_div(x, HZ);
-# el
se
+# el
if HZ > USER_HZ
do_div(x, HZ / USER_HZ);
+# else
+ /* Nothing to do */
# endif
#else
/*