diff options
| author |   Can Guo <cang@codeaurora.org> | 2020-08-09 05:15:55 -0700 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2020-08-20 21:41:25 -0400 |
| commit | 8bb2dde069d860e7ea379862a7d0e8ee01cec5e9 (patch) | |
| tree | 9bbb2330752b4f6be9a31585046376517fc75239 /tools/perf/scripts/python/bin | |
| parent | scsi: ufs: Fix a race condition between error handler and runtime PM ops (diff) | |
scsi: ufs: Properly release resources if a task is aborted successfully
In current UFS task abort hook, namely ufshcd_abort(), if one task is
aborted successfully, clk_gating.active_reqs held by this task is not
decreased, which makes clk_gating.active_reqs stay above zero forever, thus
clock gating would never happen. Instead of releasing resources of one task
"manually", use the existing func __ufshcd_transfer_req_compl(). This
change also eliminates a possible race of scsi_dma_unmap() from the real
completion in IRQ handler path.
Link: https://lore.kernel.org/r/1596975355-39813-10-git-send-email-cang@codeaurora.org
Fixes: 1ab27c9cf8b6 ("ufs: Add support for clock gating")
CC: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions