[PATCH v2 6/6] brd: Add support for rw_page
From: Matthew Wilcox <hidden>
Date: 2014-03-23 19:08:28
Also in:
linux-fsdevel, lkml
Subsystem:
block layer, ramdisk ram block device driver, the rest · Maintainers:
Jens Axboe, Linus Torvalds
Signed-off-by: Matthew Wilcox <redacted> --- drivers/block/brd.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index e73b85c..807d3d5 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c@@ -360,6 +360,15 @@ out: bio_endio(bio, err); } +static int brd_rw_page(struct block_device *bdev, sector_t sector, + struct page *page, int rw) +{ + struct brd_device *brd = bdev->bd_disk->private_data; + int err = brd_do_bvec(brd, page, PAGE_CACHE_SIZE, 0, rw, sector); + page_endio(page, rw & WRITE, err); + return err; +} + #ifdef CONFIG_BLK_DEV_XIP static int brd_direct_access(struct block_device *bdev, sector_t sector, void **kaddr, unsigned long *pfn)
@@ -419,6 +428,7 @@ static int brd_ioctl(struct block_device *bdev, fmode_t mode, static const struct block_device_operations brd_fops = { .owner = THIS_MODULE, + .rw_page = brd_rw_page, .ioctl = brd_ioctl, #ifdef CONFIG_BLK_DEV_XIP .direct_access = brd_direct_access,
--
1.9.0
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