diff options
| author | Jia-Ju Bai <baijiaju1990@gmail.com> | 2018-01-25 05:26:52 -0500 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2018-01-25 10:28:13 -0500 |
| commit | e72685dbd2e7782ce99ccd198e52dc0d9cf1d16f (patch) | |
| tree | cd44a339302a206e1f0aa4c723af2c3a7a35217c /tools/perf/scripts/python/syscall-counts.py | |
| parent | 6590425218b9e8cedf6acd3dd903fb7a907937b7 (diff) | |
ata: sata_mv: Replace mdelay with usleep_range in mv_reset_channel
After checking all possible call chains to mv_reset_channel here,
my tool finds that mv_reset_channel is never called in atomic context,
namely never in an interrupt handler or holding a spinlock.
Thus mdelay can be replaced with usleep_range to avoid busy wait.
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions