mm/block: convert rw_page users to bio op use

[cascardo/linux.git] / drivers / block / brd.c

diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 3022dad..3439b28 100644 (file)
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -300,20 +300,20 @@ static void copy_from_brd(void *dst, struct brd_device *brd,
  * Process a single bvec of a bio.
  */
 static int brd_do_bvec(struct brd_device *brd, struct page *page,
-                       unsigned int len, unsigned int off, int rw,
+                       unsigned int len, unsigned int off, int op,
                        sector_t sector)
 {
        void *mem;
        int err = 0;
 
-       if (rw != READ) {
+       if (op_is_write(op)) {
                err = copy_to_brd_setup(brd, sector, len);
                if (err)
                        goto out;
        }
 
        mem = kmap_atomic(page);
-       if (rw == READ) {
+       if (!op_is_write(op)) {
                copy_from_brd(mem + off, brd, sector, len);
                flush_dcache_page(page);
        } else {
@@ -330,7 +330,6 @@ static blk_qc_t brd_make_request(struct request_queue *q, struct bio *bio)
 {
        struct block_device *bdev = bio->bi_bdev;
        struct brd_device *brd = bdev->bd_disk->private_data;
-       int rw;
        struct bio_vec bvec;
        sector_t sector;
        struct bvec_iter iter;
@@ -347,14 +346,12 @@ static blk_qc_t brd_make_request(struct request_queue *q, struct bio *bio)
                goto out;
        }
 
-       rw = bio_data_dir(bio);
-
        bio_for_each_segment(bvec, bio, iter) {
                unsigned int len = bvec.bv_len;
                int err;
 
                err = brd_do_bvec(brd, bvec.bv_page, len,
-                                       bvec.bv_offset, rw, sector);
+                                       bvec.bv_offset, bio_op(bio), sector);
                if (err)
                        goto io_error;
                sector += len >> SECTOR_SHIFT;
@@ -369,11 +366,11 @@ io_error:
 }
 
 static int brd_rw_page(struct block_device *bdev, sector_t sector,
-                      struct page *page, int rw)
+                      struct page *page, int op)
 {
        struct brd_device *brd = bdev->bd_disk->private_data;
-       int err = brd_do_bvec(brd, page, PAGE_SIZE, 0, rw, sector);
-       page_endio(page, rw & WRITE, err);
+       int err = brd_do_bvec(brd, page, PAGE_SIZE, 0, op, sector);
+       page_endio(page, op, err);
        return err;
 }