From 72d711c8768805b5f8cf2d23c575dfd188993e12 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Tue, 22 May 2018 18:26:20 -0400 Subject: dm: adjust structure members to improve alignment Eliminate most holes in DM data structures that were modified by commit 6f1c819c21 ("dm: convert to bioset_init()/mempool_init()"). Also prevent structure members from unnecessarily spanning cache lines. Signed-off-by: Mike Snitzer --- drivers/md/dm-region-hash.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'drivers/md/dm-region-hash.c') diff --git a/drivers/md/dm-region-hash.c b/drivers/md/dm-region-hash.c index abf3521b80a8..c832ec398f02 100644 --- a/drivers/md/dm-region-hash.c +++ b/drivers/md/dm-region-hash.c @@ -63,27 +63,28 @@ struct dm_region_hash { /* hash table */ rwlock_t hash_lock; - mempool_t region_pool; unsigned mask; unsigned nr_buckets; unsigned prime; unsigned shift; struct list_head *buckets; + /* + * If there was a flush failure no regions can be marked clean. + */ + int flush_failure; + unsigned max_recovery; /* Max # of regions to recover in parallel */ spinlock_t region_lock; atomic_t recovery_in_flight; - struct semaphore recovery_count; struct list_head clean_regions; struct list_head quiesced_regions; struct list_head recovered_regions; struct list_head failed_recovered_regions; + struct semaphore recovery_count; - /* - * If there was a flush failure no regions can be marked clean. - */ - int flush_failure; + mempool_t region_pool; void *context; sector_t target_begin; -- cgit v1.2.3