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| author | Matthew R. Ochs <mrochs@linux.vnet.ibm.com> | 2018-05-11 14:05:37 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-05-18 11:22:10 -0400 |
| commit | e63a8d886d346e83607e4495ec21f1a0ca6398a2 (patch) | |
| tree | 52f9218e38b7c9f78e97c9018db01588dcdf31d2 /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | scsi: cxlflash: Acquire semaphore before invoking ioctl services (diff) | |
| download | linux-e63a8d886d346e83607e4495ec21f1a0ca6398a2.tar.gz linux-e63a8d886d346e83607e4495ec21f1a0ca6398a2.zip | |
scsi: cxlflash: Use local mutex for AFU serialization
AFUs can only process a single AFU command at a time. This is enforced with
a global mutex situated within the AFU send routine. As this mutex has a
global scope, it has the potential to unnecessarily block commands destined
for other AFUs.
Instead of using a global mutex, transition the mutex to be per-AFU. This
will allow commands to only be blocked by siblings of the same AFU.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions