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 608dfddd84
(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>
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@ -27,7 +27,7 @@
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#include "buffer_sync.h"
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#include "buffer_sync.h"
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#include "oprof.h"
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#include "oprof.h"
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DEFINE_PER_CPU_SHARED_ALIGNED(struct oprofile_cpu_buffer, cpu_buffer);
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DEFINE_PER_CPU(struct oprofile_cpu_buffer, cpu_buffer);
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static void wq_sync_buffer(struct work_struct *work);
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static void wq_sync_buffer(struct work_struct *work);
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@ -46,7 +46,7 @@ struct oprofile_cpu_buffer {
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unsigned long sample_invalid_eip;
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unsigned long sample_invalid_eip;
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int cpu;
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int cpu;
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struct delayed_work work;
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struct delayed_work work;
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} ____cacheline_aligned;
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};
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DECLARE_PER_CPU(struct oprofile_cpu_buffer, cpu_buffer);
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DECLARE_PER_CPU(struct oprofile_cpu_buffer, cpu_buffer);
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