diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/md/dm-zoned.h | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/drivers/md/dm-zoned.h b/drivers/md/dm-zoned.h index 12419f0bfe78..ed8de49c9a08 100644 --- a/drivers/md/dm-zoned.h +++ b/drivers/md/dm-zoned.h @@ -115,7 +115,6 @@ enum { DMZ_BUF, /* Zone internal state */ - DMZ_ACTIVE, DMZ_RECLAIM, DMZ_SEQ_WRITE_ERR, }; @@ -128,7 +127,6 @@ enum { #define dmz_is_empty(z) ((z)->wp_block == 0) #define dmz_is_offline(z) test_bit(DMZ_OFFLINE, &(z)->flags) #define dmz_is_readonly(z) test_bit(DMZ_READ_ONLY, &(z)->flags) -#define dmz_is_active(z) test_bit(DMZ_ACTIVE, &(z)->flags) #define dmz_in_reclaim(z) test_bit(DMZ_RECLAIM, &(z)->flags) #define dmz_seq_write_err(z) test_bit(DMZ_SEQ_WRITE_ERR, &(z)->flags) @@ -188,8 +186,30 @@ void dmz_unmap_zone(struct dmz_metadata *zmd, struct dm_zone *zone); unsigned int dmz_nr_rnd_zones(struct dmz_metadata *zmd); unsigned int dmz_nr_unmap_rnd_zones(struct dmz_metadata *zmd); -void dmz_activate_zone(struct dm_zone *zone); -void dmz_deactivate_zone(struct dm_zone *zone); +/* + * Activate a zone (increment its reference count). + */ +static inline void dmz_activate_zone(struct dm_zone *zone) +{ + atomic_inc(&zone->refcount); +} + +/* + * Deactivate a zone. This decrement the zone reference counter + * indicating that all BIOs to the zone have completed when the count is 0. + */ +static inline void dmz_deactivate_zone(struct dm_zone *zone) +{ + atomic_dec(&zone->refcount); +} + +/* + * Test if a zone is active, that is, has a refcount > 0. + */ +static inline bool dmz_is_active(struct dm_zone *zone) +{ + return atomic_read(&zone->refcount); +} int dmz_lock_zone_reclaim(struct dm_zone *zone); void dmz_unlock_zone_reclaim(struct dm_zone *zone); |