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| author | Dan Williams <dan.j.williams@intel.com> | 2011-11-08 16:22:06 +1100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-11 09:44:50 -0800 |
| commit | 9851882600e7ad611093c661e785572bc8161493 (patch) | |
| tree | 0ee2083caf96d6a4a84e6f5b66f4ccb04a384b14 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 8bf61ab910e9de3cb55db58794ec07c737089b10 (diff) | |
md/raid5: STRIPE_ACTIVE has lock semantics, add barriers
commit 257a4b42af7586fab4eaec7f04e6896b86551843 upstream.
All updates that occur under STRIPE_ACTIVE should be globally visible
when STRIPE_ACTIVE clears. test_and_set_bit() implies a barrier, but
clear_bit() does not.
This is suitable for 3.1-stable.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions