path: root/drivers/lightnvm/pblk-write.c
diff options
authorJavier González <jg@lightnvm.io>2017-06-30 17:56:39 +0200
committerJens Axboe <axboe@kernel.dk>2017-06-30 11:08:18 -0600
commitde54e703a4229e4688eb77b32b1c27861384e22a (patch)
treea615443d5f3c5ebe13616ad9331800d9b1bf466b /drivers/lightnvm/pblk-write.c
parent8224cbd80be15908ecb6351b90291596e8bdcf79 (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-write.c')
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/lightnvm/pblk-write.c b/drivers/lightnvm/pblk-write.c
index 3e0b84937b90..8151bf4bb945 100644
--- a/drivers/lightnvm/pblk-write.c
+++ b/drivers/lightnvm/pblk-write.c
@@ -389,7 +389,8 @@ int pblk_submit_meta_io(struct pblk *pblk, struct pblk_line *meta_line)
rq_len = rq_ppas * geo->sec_size;
data = ((void *)emeta->buf) + emeta->mem;
- bio = pblk_bio_map_addr(pblk, data, rq_ppas, rq_len, GFP_KERNEL);
+ bio = pblk_bio_map_addr(pblk, data, rq_ppas, rq_len,
+ l_mg->emeta_alloc_type, GFP_KERNEL);
if (IS_ERR(bio)) {
ret = PTR_ERR(bio);
goto fail_free_rqd;

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