From: Javier González <jg@lightnvm.io>
Date: Mon, 26 Jun 2017 09:57:12 +0000 (+0200)
Subject: lightnvm: pblk: spare double cpu_to_le64 calc.
X-Git-Tag: v4.14-rc1~651^2~70
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=caa69fa560025d12c276abd62d58a87b94324708;p=platform%2Fkernel%2Flinux-rpi.git

lightnvm: pblk: spare double cpu_to_le64 calc.

Spare a double calculation on the fast write path.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/drivers/lightnvm/pblk-map.c b/drivers/lightnvm/pblk-map.c
index 17c1695..18291c2 100644
--- a/drivers/lightnvm/pblk-map.c
+++ b/drivers/lightnvm/pblk-map.c
@@ -53,8 +53,9 @@ static void pblk_map_page_data(struct pblk *pblk, unsigned int sentry,
 			lba_list[paddr] = cpu_to_le64(w_ctx->lba);
 			le64_add_cpu(&line->emeta->nr_valid_lbas, 1);
 		} else {
-			meta_list[i].lba = cpu_to_le64(ADDR_EMPTY);
-			lba_list[paddr] = cpu_to_le64(ADDR_EMPTY);
+			u64 addr_empty = cpu_to_le64(ADDR_EMPTY);
+
+			lba_list[paddr] = meta_list[i].lba = addr_empty;
 			pblk_map_pad_invalidate(pblk, line, paddr);
 		}
 	}
diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c
index f8f8508..8278700 100644
--- a/drivers/lightnvm/pblk-recovery.c
+++ b/drivers/lightnvm/pblk-recovery.c
@@ -390,12 +390,12 @@ next_pad_rq:
 
 		for (j = 0; j < pblk->min_write_pgs; j++, i++, w_ptr++) {
 			struct ppa_addr dev_ppa;
+			u64 addr_empty = cpu_to_le64(ADDR_EMPTY);
 
 			dev_ppa = addr_to_gen_ppa(pblk, w_ptr, line->id);
 
 			pblk_map_invalidate(pblk, dev_ppa);
-			meta_list[i].lba = cpu_to_le64(ADDR_EMPTY);
-			lba_list[w_ptr] = cpu_to_le64(ADDR_EMPTY);
+			lba_list[w_ptr] = meta_list[i].lba = addr_empty;
 			rqd->ppa_list[i] = dev_ppa;
 		}
 	}