diff options
Diffstat (limited to 'drivers/md/dm-raid1.c')
| -rw-r--r-- | drivers/md/dm-raid1.c | 43 |
1 files changed, 23 insertions, 20 deletions
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index 6cfa8d435d55..d12cf3e5e076 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -122,16 +122,6 @@ static inline sector_t region_to_sector(struct region_hash *rh, region_t region) /* FIXME move this */ static void queue_bio(struct mirror_set *ms, struct bio *bio, int rw); -static void *region_alloc(gfp_t gfp_mask, void *pool_data) -{ - return kmalloc(sizeof(struct region), gfp_mask); -} - -static void region_free(void *element, void *pool_data) -{ - kfree(element); -} - #define MIN_REGIONS 64 #define MAX_RECOVERY 1 static int rh_init(struct region_hash *rh, struct mirror_set *ms, @@ -173,8 +163,8 @@ static int rh_init(struct region_hash *rh, struct mirror_set *ms, INIT_LIST_HEAD(&rh->quiesced_regions); INIT_LIST_HEAD(&rh->recovered_regions); - rh->region_pool = mempool_create(MIN_REGIONS, region_alloc, - region_free, NULL); + rh->region_pool = mempool_create_kmalloc_pool(MIN_REGIONS, + sizeof(struct region)); if (!rh->region_pool) { vfree(rh->buckets); rh->buckets = NULL; @@ -412,9 +402,21 @@ static void rh_dec(struct region_hash *rh, region_t region) spin_lock_irqsave(&rh->region_lock, flags); if (atomic_dec_and_test(®->pending)) { + /* + * There is no pending I/O for this region. + * We can move the region to corresponding list for next action. + * At this point, the region is not yet connected to any list. + * + * If the state is RH_NOSYNC, the region should be kept off + * from clean list. + * The hash entry for RH_NOSYNC will remain in memory + * until the region is recovered or the map is reloaded. + */ + + /* do nothing for RH_NOSYNC */ if (reg->state == RH_RECOVERING) { list_add_tail(®->list, &rh->quiesced_regions); - } else { + } else if (reg->state == RH_DIRTY) { reg->state = RH_CLEAN; list_add(®->list, &rh->clean_regions); } @@ -932,9 +934,9 @@ static inline int _check_region_size(struct dm_target *ti, uint32_t size) static int get_mirror(struct mirror_set *ms, struct dm_target *ti, unsigned int mirror, char **argv) { - sector_t offset; + unsigned long long offset; - if (sscanf(argv[1], SECTOR_FORMAT, &offset) != 1) { + if (sscanf(argv[1], "%llu", &offset) != 1) { ti->error = "dm-mirror: Invalid offset"; return -EINVAL; } @@ -1201,16 +1203,17 @@ static int mirror_status(struct dm_target *ti, status_type_t type, for (m = 0; m < ms->nr_mirrors; m++) DMEMIT("%s ", ms->mirror[m].dev->name); - DMEMIT(SECTOR_FORMAT "/" SECTOR_FORMAT, - ms->rh.log->type->get_sync_count(ms->rh.log), - ms->nr_regions); + DMEMIT("%llu/%llu", + (unsigned long long)ms->rh.log->type-> + get_sync_count(ms->rh.log), + (unsigned long long)ms->nr_regions); break; case STATUSTYPE_TABLE: DMEMIT("%d ", ms->nr_mirrors); for (m = 0; m < ms->nr_mirrors; m++) - DMEMIT("%s " SECTOR_FORMAT " ", - ms->mirror[m].dev->name, ms->mirror[m].offset); + DMEMIT("%s %llu ", ms->mirror[m].dev->name, + (unsigned long long)ms->mirror[m].offset); } return 0; |