From: Rakib Mullick <rakib.mullick@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@elte.hu>, Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH] kernel, profile: Remove some duplicate code from profile_hits()
Date: Wed, 27 Apr 2011 23:00:35 +0600 [thread overview]
Message-ID: <1303923635.5168.7.camel@localhost.localdomain> (raw)
profile_hits() has a common check for prof_on and prof_buffer regardless of SMP or !SMP. So, remove some duplicate code by splitting profile_hits into two.
Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
---
diff --git a/kernel/profile.c b/kernel/profile.c
index 14c9f87..185e648 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -303,14 +303,12 @@ static void profile_discard_flip_buffers(void)
mutex_unlock(&profile_flip_mutex);
}
-void profile_hits(int type, void *__pc, unsigned int nr_hits)
+void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
{
unsigned long primary, secondary, flags, pc = (unsigned long)__pc;
int i, j, cpu;
struct profile_hit *hits;
- if (prof_on != type || !prof_buffer)
- return;
pc = min((pc - (unsigned long)_stext) >> prof_shift, prof_len - 1);
i = primary = (pc & (NR_PROFILE_GRP - 1)) << PROFILE_GRPSHIFT;
secondary = (~(pc << 1) & (NR_PROFILE_GRP - 1)) << PROFILE_GRPSHIFT;
@@ -417,16 +415,20 @@ out_free:
#define profile_discard_flip_buffers() do { } while (0)
#define profile_cpu_callback NULL
-void profile_hits(int type, void *__pc, unsigned int nr_hits)
+void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
{
unsigned long pc;
-
- if (prof_on != type || !prof_buffer)
- return;
pc = ((unsigned long)__pc - (unsigned long)_stext) >> prof_shift;
atomic_add(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
}
#endif /* !CONFIG_SMP */
+
+void profile_hits(int type, void *__pc, unsigned int nr_hits)
+{
+ if (prof_on != type || !prof_buffer)
+ return;
+ do_profile_hits(type, __pc, nr_hits);
+}
EXPORT_SYMBOL_GPL(profile_hits);
void profile_tick(int type)
reply other threads:[~2011-04-27 17:00 UTC|newest]
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