linux-kernel - [PATCH 4/8 linux-next] libnvdimm, namespace: avoid multiple sector calculations

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Date:   Fri,  2 Dec 2016 20:20:56 +0100
From:   Fabian Frederick <fabf@...net.be>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     linux-nvdimm@...ts.01.org, linux-kernel@...r.kernel.org,
        fabf@...net.be
Subject: [PATCH 4/8 linux-next] libnvdimm, namespace: avoid multiple sector calculations

add cleared_sectors variable to add more readability.

Signed-off-by: Fabian Frederick <fabf@...net.be>
---
 drivers/nvdimm/pmem.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 204912c..4da4735 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -52,16 +52,16 @@ static int pmem_clear_poison(struct pmem_device *pmem, phys_addr_t offset,
 {
 	struct device *dev = to_dev(pmem);
 	sector_t sector;
-	long cleared;
+	long cleared, cleared_sectors;
 
 	sector = (offset - pmem->data_offset) / 512;
 	cleared = nvdimm_clear_poison(dev, pmem->phys_addr + offset, len);
-
-	if (cleared > 0 && cleared / 512) {
+	cleared_sectors = cleared / 512;
+	if (cleared > 0 && cleared_sectors) {
 		dev_dbg(dev, "%s: %#llx clear %ld sector%s\n",
-				__func__, (unsigned long long) sector,
-				cleared / 512, cleared / 512 > 1 ? "s" : "");
-		badblocks_clear(&pmem->bb, sector, cleared / 512);
+			     __func__, (unsigned long long) sector,
+			     cleared_sectors, cleared_sectors > 1 ? "s" : "");
+		badblocks_clear(&pmem->bb, sector, cleared_sectors);
 	} else {
 		return -EIO;
 	}
-- 
2.7.4