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authorJens Axboe <axboe@fb.com>2016-08-05 08:11:04 -0600
committerJens Axboe <axboe@fb.com>2016-08-07 14:41:02 -0600
commitc11f0c0b5bb949673e4fc16c742f0316ae4ced20 (patch)
tree86b0c6102a4b01c4609a199b783f990e78959b72 /drivers/nvdimm/pmem.c
parent52ddb7e9dd735c1a10722c58d3e069af4d3e6df2 (diff)
block/mm: make bdev_ops->rw_page() take a bool for read/write
Commit abf545484d31 changed it from an 'rw' flags type to the newer ops based interface, but now we're effectively leaking some bdev internals to the rest of the kernel. Since we only care about whether it's a read or a write at that level, just pass in a bool 'is_write' parameter instead. Then we can also move op_is_write() and friends back under CONFIG_BLOCK protection. Reviewed-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvdimm/pmem.c')
-rw-r--r--drivers/nvdimm/pmem.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index d64d92481c1d..20bae50c231d 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -67,7 +67,7 @@ static void pmem_clear_poison(struct pmem_device *pmem, phys_addr_t offset,
}
static int pmem_do_bvec(struct pmem_device *pmem, struct page *page,
- unsigned int len, unsigned int off, int op,
+ unsigned int len, unsigned int off, bool is_write,
sector_t sector)
{
int rc = 0;
@@ -79,7 +79,7 @@ static int pmem_do_bvec(struct pmem_device *pmem, struct page *page,
if (unlikely(is_bad_pmem(&pmem->bb, sector, len)))
bad_pmem = true;
- if (!op_is_write(op)) {
+ if (!is_write) {
if (unlikely(bad_pmem))
rc = -EIO;
else {
@@ -134,7 +134,7 @@ static blk_qc_t pmem_make_request(struct request_queue *q, struct bio *bio)
do_acct = nd_iostat_start(bio, &start);
bio_for_each_segment(bvec, bio, iter) {
rc = pmem_do_bvec(pmem, bvec.bv_page, bvec.bv_len,
- bvec.bv_offset, bio_op(bio),
+ bvec.bv_offset, op_is_write(bio_op(bio)),
iter.bi_sector);
if (rc) {
bio->bi_error = rc;
@@ -152,12 +152,12 @@ static blk_qc_t pmem_make_request(struct request_queue *q, struct bio *bio)
}
static int pmem_rw_page(struct block_device *bdev, sector_t sector,
- struct page *page, int op)
+ struct page *page, bool is_write)
{
struct pmem_device *pmem = bdev->bd_queue->queuedata;
int rc;
- rc = pmem_do_bvec(pmem, page, PAGE_SIZE, 0, op, sector);
+ rc = pmem_do_bvec(pmem, page, PAGE_SIZE, 0, is_write, sector);
/*
* The ->rw_page interface is subtle and tricky. The core
@@ -166,7 +166,7 @@ static int pmem_rw_page(struct block_device *bdev, sector_t sector,
* caused by double completion.
*/
if (rc == 0)
- page_endio(page, op, 0);
+ page_endio(page, is_write, 0);
return rc;
}