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| author | Leo Yan <leo.yan@linaro.org> | 2021-08-09 19:14:01 +0800 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2021-10-27 11:44:43 -0600 |
| commit | bd8d06886d0a9b59d020fdb2496c76db77816768 (patch) | |
| tree | 9ab9cd257deee2d018734e0cc29c654b387ef9f4 /fs/open.c | |
| parent | 26701ceb4c2c6bfa5f8c8984fa1a1ea08fa0f02c (diff) | |
coresight: tmc-etf: Add comment for store ordering
Since the function CS_LOCK() has contained memory barrier mb(), it
ensures the visibility of the AUX trace data before updating the
aux_head, thus it's needless to add any explicit barrier anymore.
Add comment to make clear for the barrier usage for ETF.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20210809111407.596077-4-leo.yan@linaro.org
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'fs/open.c')
0 files changed, 0 insertions, 0 deletions