[PATCH 01/11] lightnvm: pblk: use constant for GC max inflight

From	"Javier González" <jg@lightnvm.io>
Newsgroups	linux.kernel
Subject	[PATCH 01/11] lightnvm: pblk: use constant for GC max inflight
Date	2017-09-15 14:30 +0200
Message-ID	<upXUT-2J1-37@gated-at.bofh.it> (permalink)
References	<upXUS-2J1-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Use a constant to set the maximum number of inflight GC requests
allowed.

Signed-off-by: Javier González <javier@cnexlabs.com>
---
 drivers/lightnvm/pblk-gc.c | 4 ++--
 drivers/lightnvm/pblk.h    | 2 +-
 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 469976a20421..afd967b55d94 100644
--- a/drivers/lightnvm/pblk.h
+++ b/drivers/lightnvm/pblk.h
@@ -815,7 +815,7 @@ 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 */
 
-- 
2.7.4

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[PATCH 00/11] lightnvm: pblk: cleanup "Javier González" <jg@lightnvm.io> - 2017-09-15 14:30 +0200
  [PATCH 10/11] lightnvm: pblk: refactor rqd alloc/free "Javier González" <jg@lightnvm.io> - 2017-09-15 14:30 +0200
  [PATCH 06/11] lightnvm: pblk: put bio on bio completion "Javier González" <jg@lightnvm.io> - 2017-09-15 14:30 +0200
  [PATCH 01/11] lightnvm: pblk: use constant for GC max inflight "Javier González" <jg@lightnvm.io> - 2017-09-15 14:30 +0200

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