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Commit a72132c3 authored by Matthew Wilcox's avatar Matthew Wilcox Committed by Linus Torvalds
Browse files

brd: add support for rw_page() 



Signed-off-by: default avatarMatthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Dheeraj Reddy <dheeraj.reddy@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent dd6bd0d9

drivers/block/brd.c

+10 −0
Original line number Diff line number Diff line
@@ -360,6 +360,15 @@ static void brd_make_request(struct request_queue *q, struct bio *bio) 
	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,