diff options
| author | Javier González <jg@lightnvm.io> | 2017-06-30 17:56:39 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-06-30 11:08:18 -0600 |
| commit | de54e703a4229e4688eb77b32b1c27861384e22a (patch) | |
| tree | a615443d5f3c5ebe13616ad9331800d9b1bf466b /drivers/lightnvm/pblk-read.c | |
| parent | 8224cbd80be15908ecb6351b90291596e8bdcf79 (diff) | |
lightnvm: pblk: use vmalloc for GC data buffer
For now, we allocate a per I/O buffer for GC data. Since the potential
size of the buffer is 256KB and GC is not in the fast path, do this
allocation with vmalloc. This puts lets pressure on the memory
allocator at no performance cost.
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/lightnvm/pblk-read.c')
| -rw-r--r-- | drivers/lightnvm/pblk-read.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/lightnvm/pblk-read.c b/drivers/lightnvm/pblk-read.c index ed2ea01a0a38..31d4869b0500 100644 --- a/drivers/lightnvm/pblk-read.c +++ b/drivers/lightnvm/pblk-read.c @@ -462,7 +462,6 @@ int pblk_submit_read_gc(struct pblk *pblk, u64 *lba_list, void *data, { struct nvm_tgt_dev *dev = pblk->dev; struct nvm_geo *geo = &dev->geo; - struct request_queue *q = dev->q; struct bio *bio; struct nvm_rq rqd; int ret, data_len; @@ -491,7 +490,8 @@ int pblk_submit_read_gc(struct pblk *pblk, u64 *lba_list, void *data, goto out; data_len = (*secs_to_gc) * geo->sec_size; - bio = bio_map_kern(q, data, data_len, GFP_KERNEL); + bio = pblk_bio_map_addr(pblk, data, *secs_to_gc, data_len, + PBLK_KMALLOC_META, GFP_KERNEL); if (IS_ERR(bio)) { pr_err("pblk: could not allocate GC bio (%lu)\n", PTR_ERR(bio)); goto err_free_dma; |