From: Tomas Henzl <thenzl@xxxxxxxxxx>
The cmd_pool_bits is protected everywhere with a spinlock,
we don't need the test_and_set_bit, set_bit is enough and the loop
can be removed too.
Signed-off-by: Tomas Henzl <thenzl@xxxxxxxxxx>
---
drivers/scsi/hpsa.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 796482b..d7df01e 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -2662,15 +2662,12 @@ static struct CommandList *cmd_alloc(struct ctlr_info *h)
unsigned long flags;
spin_lock_irqsave(&h->lock, flags);
- do {
- i = find_first_zero_bit(h->cmd_pool_bits, h->nr_cmds);
- if (i == h->nr_cmds) {
- spin_unlock_irqrestore(&h->lock, flags);
- return NULL;
- }
- } while (test_and_set_bit
- (i & (BITS_PER_LONG - 1),
- h->cmd_pool_bits + (i / BITS_PER_LONG)) != 0);
+ i = find_first_zero_bit(h->cmd_pool_bits, h->nr_cmds);
+ if (i == h->nr_cmds) {
+ spin_unlock_irqrestore(&h->lock, flags);
+ return NULL;
+ }
+ set_bit(i & (BITS_PER_LONG - 1), h->cmd_pool_bits + (i / BITS_PER_LONG));
h->nr_allocs++;
spin_unlock_irqrestore(&h->lock, flags);
--
1.8.3.1
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
