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.h | |
| parent | lightnvm: pblk: use right metadata buffer for recovery (diff) | |
| download | wireguard-linux-de54e703a4229e4688eb77b32b1c27861384e22a.tar.xz wireguard-linux-de54e703a4229e4688eb77b32b1c27861384e22a.zip | |
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 '')
| -rw-r--r-- | drivers/lightnvm/pblk.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h index 36c5f5999324..cdad2c9edbdf 100644 --- a/drivers/lightnvm/pblk.h +++ b/drivers/lightnvm/pblk.h @@ -698,7 +698,7 @@ int pblk_submit_io(struct pblk *pblk, struct nvm_rq *rqd); int pblk_submit_meta_io(struct pblk *pblk, struct pblk_line *meta_line); struct bio *pblk_bio_map_addr(struct pblk *pblk, void *data, unsigned int nr_secs, unsigned int len, - gfp_t gfp_mask); + int alloc_type, gfp_t gfp_mask); struct pblk_line *pblk_line_get(struct pblk *pblk); struct pblk_line *pblk_line_get_first_data(struct pblk *pblk); void pblk_line_replace_data(struct pblk *pblk); @@ -805,7 +805,7 @@ int pblk_recov_setup_rq(struct pblk *pblk, struct pblk_c_ctx *c_ctx, * pblk gc */ #define PBLK_GC_MAX_READERS 8 /* Max number of outstanding GC reader jobs */ -#define PBLK_GC_W_QD 1024 /* Queue depth for inflight GC write I/Os */ +#define PBLK_GC_W_QD 128 /* Queue depth for inflight GC write I/Os */ #define PBLK_GC_L_QD 4 /* Queue depth for inflight GC lines */ #define PBLK_GC_RSV_LINE 1 /* Reserved lines for GC */ |