[PATCH] remove unlikely() in might_sleep_if()
The likely() profiling tools show that __alloc_page() causes a lot of misses: ! 132 119193 __alloc_pages():mm/page_alloc.c@937 Because most __alloc_page() calls are not atomic. Signed-off-by: Hua Zhong <hzhong@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -78,7 +78,7 @@ extern int cond_resched(void);
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# define might_sleep() do { might_resched(); } while (0)
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#endif
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#define might_sleep_if(cond) do { if (unlikely(cond)) might_sleep(); } while (0)
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#define might_sleep_if(cond) do { if (cond) might_sleep(); } while (0)
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#define abs(x) ({ \
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int __x = (x); \
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