diff options
| author | John Garry | 2016-09-06 17:36:11 +0200 |
|---|---|---|
| committer | Martin K. Petersen | 2016-09-14 18:54:17 +0200 |
| commit | e6c346f303d41b8799ea224d0faf1b2caa1c98db (patch) | |
| tree | 5ab81caef92f48c4960acefc2e66605b2e05eab4 /drivers/scsi/hisi_sas/hisi_sas_main.c | |
| parent | scsi: cxlflash: Fix context reference tracking on detach (diff) | |
| download | kernel-qcow2-linux-e6c346f303d41b8799ea224d0faf1b2caa1c98db.tar.gz kernel-qcow2-linux-e6c346f303d41b8799ea224d0faf1b2caa1c98db.tar.xz kernel-qcow2-linux-e6c346f303d41b8799ea224d0faf1b2caa1c98db.zip | |
scsi: hisi_sas: save completion queue read pointer
Optimise by saving an avoidable read in the cq interrupt. The queue
read pointer will only be updated by software, so don't bother
re-reading what was already written in the previous interrupt.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hisi_sas/hisi_sas_main.c')
0 files changed, 0 insertions, 0 deletions