UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

scsi: hisi_sas: Use non-atomic bitmap functions when possible 

All uses of the 'hisi_hba->slot_index_tags' bitmap are protected with the
'hisi_hba->lock' spinlock.

Prefer the non-atomic '__[set|clear]_bit()' functions to save a few cycles.

Link: https://lore.kernel.org/r/8ee33e463523db080e6a2c06f332e47abb69359b.1637961191.git.christophe.jaillet@wanadoo.fr
Acked-by: John Garry <john.garry@huawei.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christophe JAILLET 2021-11-26 22:18:26 +01:00 committed by Martin K. Petersen
parent d43efddf62
commit 4d6942e266
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/scsi/hisi_sas/hisi_sas_main.c
View File

@ -158,7 +158,7 @@ static void hisi_sas_slot_index_clear(struct hisi_hba *hisi_hba, int slot_idx)
{
void *bitmap = hisi_hba->slot_index_tags;
clear_bit(slot_idx, bitmap);
__clear_bit(slot_idx, bitmap);
}
static void hisi_sas_slot_index_free(struct hisi_hba *hisi_hba, int slot_idx)
@ -175,7 +175,7 @@ static void hisi_sas_slot_index_set(struct hisi_hba *hisi_hba, int slot_idx)
{
void *bitmap = hisi_hba->slot_index_tags;
set_bit(slot_idx, bitmap);
__set_bit(slot_idx, bitmap);
}
static int hisi_sas_slot_index_alloc(struct hisi_hba *hisi_hba,