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| author | Johannes Thumshirn <jthumshirn@suse.de> | 2019-10-18 11:58:21 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2019-11-18 12:47:00 +0100 |
| commit | 721860d5780c64d0757a205413c7eecddfd89039 (patch) | |
| tree | 8d6699ad8c6407c8401ad066a44eafc8713432c5 /fs/btrfs/raid56.c | |
| parent | 9d6cb1b0f9dfefac9cf2f62c8582aa892770b34e (diff) | |
| download | linux-721860d5780c64d0757a205413c7eecddfd89039.tar.gz linux-721860d5780c64d0757a205413c7eecddfd89039.tar.bz2 linux-721860d5780c64d0757a205413c7eecddfd89039.zip | |
btrfs: remove pointless local variable in lock_stripe_add()
In lock_stripe_add() we're caching the bucket for the stripe hash table
just for a single call to dereference the stripe hash.
If we just directly call rbio_bucket() we can safe the pointless local
variable.
Also move the dereferencing of the stripe hash outside of the variable
declaration block to not break over the 80 characters limit.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/raid56.c')
| -rw-r--r-- | fs/btrfs/raid56.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index d3fc55f8846e..a8e53c8e7b01 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -671,8 +671,7 @@ static struct page *rbio_qstripe_page(struct btrfs_raid_bio *rbio, int index) */ static noinline int lock_stripe_add(struct btrfs_raid_bio *rbio) { - int bucket = rbio_bucket(rbio); - struct btrfs_stripe_hash *h = rbio->fs_info->stripe_hash_table->table + bucket; + struct btrfs_stripe_hash *h; struct btrfs_raid_bio *cur; struct btrfs_raid_bio *pending; unsigned long flags; @@ -680,6 +679,8 @@ static noinline int lock_stripe_add(struct btrfs_raid_bio *rbio) struct btrfs_raid_bio *cache_drop = NULL; int ret = 0; + h = rbio->fs_info->stripe_hash_table->table + rbio_bucket(rbio); + spin_lock_irqsave(&h->lock, flags); list_for_each_entry(cur, &h->hash_list, hash_list) { if (cur->bbio->raid_map[0] != rbio->bbio->raid_map[0]) |