diff options
| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2022-07-03 18:05:43 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-08-02 17:14:44 -0600 |
| commit | eb25ad80364bc4351ad3f96ecbe9805e8af2d8c0 (patch) | |
| tree | cae4abf4f595b9dfd5c42e83da3b1d6596fb07ca /drivers/block | |
| parent | 9e26728b5fa9c6ffdb3f5612279bd3b2f7ea8c3c (diff) | |
| download | linux-eb25ad80364bc4351ad3f96ecbe9805e8af2d8c0.tar.bz2 | |
block: null_blk: Use the bitmap API to allocate bitmaps
Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.
It is less verbose and it improves the semantic.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/7c4d3116ba843fc4a8ae557dd6176352a6cd0985.1656864320.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/null_blk/main.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c index 8b224ede2e33..1b06df7206a1 100644 --- a/drivers/block/null_blk/main.c +++ b/drivers/block/null_blk/main.c @@ -1655,7 +1655,7 @@ static blk_status_t null_queue_rq(struct blk_mq_hw_ctx *hctx, static void cleanup_queue(struct nullb_queue *nq) { - kfree(nq->tag_map); + bitmap_free(nq->tag_map); kfree(nq->cmds); } @@ -1782,14 +1782,13 @@ static const struct block_device_operations null_rq_ops = { static int setup_commands(struct nullb_queue *nq) { struct nullb_cmd *cmd; - int i, tag_size; + int i; nq->cmds = kcalloc(nq->queue_depth, sizeof(*cmd), GFP_KERNEL); if (!nq->cmds) return -ENOMEM; - tag_size = ALIGN(nq->queue_depth, BITS_PER_LONG) / BITS_PER_LONG; - nq->tag_map = kcalloc(tag_size, sizeof(unsigned long), GFP_KERNEL); + nq->tag_map = bitmap_zalloc(nq->queue_depth, GFP_KERNEL); if (!nq->tag_map) { kfree(nq->cmds); return -ENOMEM; |