From dc9cee5db50afaf38506bc12eb479fb8ea536dba Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Mon, 31 Aug 2015 15:41:34 -0400 Subject: dm cache: small cleanups related to deferred prison cell cleanup Eliminate __cell_release() since it only had one caller that always released the cell holder. Switch cell_error_with_code() to using free_prison_cell() for the sake of consistency. Signed-off-by: Mike Snitzer --- drivers/md/dm-cache-target.c | 21 ++++++--------------- 1 file changed, 6 insertions(+), 15 deletions(-) (limited to 'drivers/md/dm-cache-target.c') diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c index 2f60cbf404e5..e13e5edf2298 100644 --- a/drivers/md/dm-cache-target.c +++ b/drivers/md/dm-cache-target.c @@ -1063,14 +1063,6 @@ static void dec_io_migrations(struct cache *cache) atomic_dec(&cache->nr_io_migrations); } -static void __cell_release(struct cache *cache, struct dm_bio_prison_cell *cell, - bool holder, struct bio_list *bios) -{ - (holder ? dm_cell_release : dm_cell_release_no_holder) - (cache->prison, cell, bios); - free_prison_cell(cache, cell); -} - static bool discard_or_flush(struct bio *bio) { return bio->bi_rw & (REQ_FLUSH | REQ_FUA | REQ_DISCARD); @@ -1078,14 +1070,13 @@ static bool discard_or_flush(struct bio *bio) static void __cell_defer(struct cache *cache, struct dm_bio_prison_cell *cell) { - if (discard_or_flush(cell->holder)) + if (discard_or_flush(cell->holder)) { /* - * We have to handle these bios - * individually. + * We have to handle these bios individually. */ - __cell_release(cache, cell, true, &cache->deferred_bios); - - else + dm_cell_release(cache->prison, cell, &cache->deferred_bios); + free_prison_cell(cache, cell); + } else list_add_tail(&cell->user_list, &cache->deferred_cells); } @@ -1112,7 +1103,7 @@ static void cell_defer(struct cache *cache, struct dm_bio_prison_cell *cell, boo static void cell_error_with_code(struct cache *cache, struct dm_bio_prison_cell *cell, int err) { dm_cell_error(cache->prison, cell, err); - dm_bio_prison_free_cell(cache->prison, cell); + free_prison_cell(cache, cell); } static void cell_requeue(struct cache *cache, struct dm_bio_prison_cell *cell) -- cgit v1.2.1