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authorEric Dumazet <dada1@cosmosbay.com>2008-05-14 16:05:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-14 19:11:12 -0700
commit8b8b498836942c0c855333d357d121c0adeefbd9 (patch)
tree15f6ea1756887cad87665597442e787d744743ba /drivers
parentf7c5a770e6006ae2b5f4fd0491565b69e4d4bb48 (diff)
downloadop-kernel-dev-8b8b498836942c0c855333d357d121c0adeefbd9.zip
op-kernel-dev-8b8b498836942c0c855333d357d121c0adeefbd9.tar.gz
oprofile: don't request cache line alignment for cpu_buffer
Alignment was previously requested because cpu_buffer was an [NR_CPUS] array, to avoid cache line sharing between CPUS. After commit 608dfddd845da5ab6accef70154c8910529699f7 (oprofile: change cpu_buffer from array to per_cpu variable ), we dont need to force an alignement anymore since cpu_buffer sits in per_cpu zone. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Cc: Mike Travis <travis@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/oprofile/cpu_buffer.c2
-rw-r--r--drivers/oprofile/cpu_buffer.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index efcbf4b..2450b3a3 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -27,7 +27,7 @@
#include "buffer_sync.h"
#include "oprof.h"
-DEFINE_PER_CPU_SHARED_ALIGNED(struct oprofile_cpu_buffer, cpu_buffer);
+DEFINE_PER_CPU(struct oprofile_cpu_buffer, cpu_buffer);
static void wq_sync_buffer(struct work_struct *work);
diff --git a/drivers/oprofile/cpu_buffer.h b/drivers/oprofile/cpu_buffer.h
index 1358817..c3e366b 100644
--- a/drivers/oprofile/cpu_buffer.h
+++ b/drivers/oprofile/cpu_buffer.h
@@ -46,7 +46,7 @@ struct oprofile_cpu_buffer {
unsigned long sample_invalid_eip;
int cpu;
struct delayed_work work;
-} ____cacheline_aligned;
+};
DECLARE_PER_CPU(struct oprofile_cpu_buffer, cpu_buffer);
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