[Linux-nvdimm] [PATCH 3/4] pmem: Add support for rw_page()
Based on commit a72132c31d58 ("brd: add support for rw_page()")
Signed-off-by: Ross Zwisler <ross.zwisler(a)linux.intel.com>
---
drivers/block/pmem.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/block/pmem.c b/drivers/block/pmem.c
index 60bbe0d..0be3669 100644
--- a/drivers/block/pmem.c
+++ b/drivers/block/pmem.c
@@ -183,8 +183,19 @@ out:
bio_endio(bio, err);
}
+static int pmem_rw_page(struct block_device *bdev, sector_t sector,
+ struct page *page, int rw)
+{
+ struct pmem_device *pmem = bdev->bd_disk->private_data;
+
+ pmem_do_bvec(pmem, page, PAGE_CACHE_SIZE, 0, rw, sector);
+ page_endio(page, rw & WRITE, 0);
+ return 0;
+}
+
static const struct block_device_operations pmem_fops = {
.owner = THIS_MODULE,
+ .rw_page = pmem_rw_page,
.getgeo = pmem_getgeo,
};
--
1.9.3