Messages in this thread Patch in this message | | | From | Julia Lawall <> | Subject | [PATCH 30/39] block: drop null test before destroy functions | Date | Sun, 13 Sep 2015 14:15:23 +0200 |
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Remove unneeded NULL test.
The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/)
// <smpl> @@ expression x; @@ -if (x != NULL) \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x); // </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
--- block/bio-integrity.c | 7 ++----- block/bio.c | 7 ++----- block/blk-core.c | 3 +-- block/elevator.c | 3 +-- 4 files changed, 6 insertions(+), 14 deletions(-)
diff --git a/block/elevator.c b/block/elevator.c index 84d6394..e3e9021 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -847,8 +847,7 @@ int elv_register(struct elevator_type *e) spin_lock(&elv_list_lock); if (elevator_find(e->elevator_name)) { spin_unlock(&elv_list_lock); - if (e->icq_cache) - kmem_cache_destroy(e->icq_cache); + kmem_cache_destroy(e->icq_cache); return -EBUSY; } list_add_tail(&e->list, &elv_list); diff --git a/block/bio.c b/block/bio.c index ad3f276..aee3290 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1850,11 +1850,8 @@ void bioset_free(struct bio_set *bs) if (bs->rescue_workqueue) destroy_workqueue(bs->rescue_workqueue); - if (bs->bio_pool) - mempool_destroy(bs->bio_pool); - - if (bs->bvec_pool) - mempool_destroy(bs->bvec_pool); + mempool_destroy(bs->bio_pool); + mempool_destroy(bs->bvec_pool); bioset_integrity_free(bs); bio_put_slab(bs); diff --git a/block/blk-core.c b/block/blk-core.c index 2eb722d..7dbebd9 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -619,8 +619,7 @@ int blk_init_rl(struct request_list *rl, struct request_queue *q, void blk_exit_rl(struct request_list *rl) { - if (rl->rq_pool) - mempool_destroy(rl->rq_pool); + mempool_destroy(rl->rq_pool); } struct request_queue *blk_alloc_queue(gfp_t gfp_mask) diff --git a/block/bio-integrity.c b/block/bio-integrity.c index 4aecca7..d3e3046 100644 --- a/block/bio-integrity.c +++ b/block/bio-integrity.c @@ -490,11 +490,8 @@ EXPORT_SYMBOL(bioset_integrity_create); void bioset_integrity_free(struct bio_set *bs) { - if (bs->bio_integrity_pool) - mempool_destroy(bs->bio_integrity_pool); - - if (bs->bvec_integrity_pool) - mempool_destroy(bs->bvec_integrity_pool); + mempool_destroy(bs->bio_integrity_pool); + mempool_destroy(bs->bvec_integrity_pool); } EXPORT_SYMBOL(bioset_integrity_free);
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