[PATCH V2 2/3 libnvdimm-pending] libnvdimm, namespace: avoid multiple sector calculations

From: Fabian Frederick
Date: Sat Dec 03 2016 - 13:54:03 EST


Use sector_t for cleared

Suggested-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx>
---
V2: -applied on top of libnvdimm-pending

drivers/nvdimm/pmem.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 0f47062..9edad8b 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -51,17 +51,16 @@ static int pmem_clear_poison(struct pmem_device *pmem, phys_addr_t offset,
unsigned int len)
{
struct device *dev = to_dev(pmem);
- sector_t sector;
- long cleared;
+ sector_t sector, cleared;

sector = (offset - pmem->data_offset) / 512;
- cleared = nvdimm_clear_poison(dev, pmem->phys_addr + offset, len);
+ cleared = nvdimm_clear_poison(dev, pmem->phys_addr + offset, len) / 512;

- if (cleared > 0 && cleared / 512) {
+ if (cleared) {
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);
+ cleared, cleared > 1 ? "s" : "");
+ badblocks_clear(&pmem->bb, sector, cleared);
} else {
return -EIO;
}
--
2.7.4