diff options
| author | Eric Dumazet <dada1@cosmosbay.com> | 2008-05-14 16:05:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-14 19:11:12 -0700 |
| commit | 8b8b498836942c0c855333d357d121c0adeefbd9 (patch) | |
| tree | 15f6ea1756887cad87665597442e787d744743ba /drivers | |
| parent | f7c5a770e6006ae2b5f4fd0491565b69e4d4bb48 (diff) | |
| download | lwn-8b8b498836942c0c855333d357d121c0adeefbd9.tar.gz lwn-8b8b498836942c0c855333d357d121c0adeefbd9.zip | |
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.c | 2 | ||||
| -rw-r--r-- | drivers/oprofile/cpu_buffer.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c index efcbf4b4579f..2450b3a393ff 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 13588174311d..c3e366b52261 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); |