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[SCSI] libsas: replace event locks with atomic bitops

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The locks only served to make sure the pending event bitmask was updated
consistently.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Dan Williams 2011-11-17 17:59:49 -08:00 • committed by James Bottomley
parent 756f173fb5
commit b15ebe0b5d
7 changed files with 23 additions and 60 deletions
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3
include/scsi/libsas.h
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@ -215,7 +215,6 @@ struct sas_discovery_event {
};
struct sas_discovery {
spinlock_t disc_event_lock;
struct sas_discovery_event disc_work[DISC_NUM_EVENTS];
unsigned long pending;
u8 fanout_sas_addr[8];
@ -272,7 +271,6 @@ struct asd_sas_event {
*/
struct asd_sas_phy {
/* private: */
/* protected by ha->event_lock */
struct asd_sas_event port_events[PORT_NUM_EVENTS];
struct asd_sas_event phy_events[PHY_NUM_EVENTS];
@ -337,7 +335,6 @@ enum sas_ha_state {
struct sas_ha_struct {
/* private: */
spinlock_t event_lock;
struct sas_ha_event ha_events[HA_NUM_EVENTS];
unsigned long pending;