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authorJavier González <javier@cnexlabs.com>2017-10-13 14:46:11 +0200
committerJens Axboe <axboe@kernel.dk>2017-10-13 08:34:57 -0600
commit3627896a4b12ea6bb9e0ff77724a24f53726db2d (patch)
treefe974a2d18caa8fa4f0db94db67d272f26b32d79 /drivers/lightnvm
parent2942f50fa389a62865572452dce6214a8aed69dc (diff)
downloadblackbird-obmc-linux-3627896a4b12ea6bb9e0ff77724a24f53726db2d.tar.gz
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lightnvm: pblk: use constant for GC max inflight
Use a constant to set the maximum number of inflight GC requests allowed. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/lightnvm')
-rw-r--r--drivers/lightnvm/pblk-gc.c4
-rw-r--r--drivers/lightnvm/pblk.h2
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/lightnvm/pblk-gc.c b/drivers/lightnvm/pblk-gc.c
index f163829ecca8..c21b2077432a 100644
--- a/drivers/lightnvm/pblk-gc.c
+++ b/drivers/lightnvm/pblk-gc.c
@@ -93,7 +93,7 @@ static int pblk_gc_move_valid_secs(struct pblk *pblk, struct pblk_gc_rq *gc_rq)
retry:
spin_lock(&gc->w_lock);
- if (gc->w_entries >= PBLK_GC_W_QD) {
+ if (gc->w_entries >= PBLK_GC_RQ_QD) {
spin_unlock(&gc->w_lock);
pblk_gc_writer_kick(&pblk->gc);
usleep_range(128, 256);
@@ -602,7 +602,7 @@ int pblk_gc_init(struct pblk *pblk)
spin_lock_init(&gc->w_lock);
spin_lock_init(&gc->r_lock);
- sema_init(&gc->gc_sem, 128);
+ sema_init(&gc->gc_sem, PBLK_GC_RQ_QD);
INIT_LIST_HEAD(&gc->w_list);
INIT_LIST_HEAD(&gc->r_list);
diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h
index 60edcda0fc7f..baa6a633990f 100644
--- a/drivers/lightnvm/pblk.h
+++ b/drivers/lightnvm/pblk.h
@@ -816,7 +816,7 @@ 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 128 /* Queue depth for inflight GC write I/Os */
+#define PBLK_GC_RQ_QD 128 /* Queue depth for inflight GC requests */
#define PBLK_GC_L_QD 4 /* Queue depth for inflight GC lines */
#define PBLK_GC_RSV_LINE 1 /* Reserved lines for GC */
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