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authorDmitry Monakhov <dmonakhov@openvz.org>2010-04-28 17:55:09 +0400
committerJens Axboe <jens.axboe@oracle.com>2010-04-28 19:47:36 +0200
commit3f14d792f9a8fede64ce918dbb517f934497a4f8 (patch)
tree1eb1d1803ebe21c05f38bc75c70ee966701a1fe8 /include/linux/blkdev.h
parentf31e7e4022841c43c53b847b86b1bf97a08b2c94 (diff)
blkdev: add blkdev_issue_zeroout helper function
- Add bio_batch helper primitive. This is rather generic primitive for submitting/waiting a complex request which consists of several bios. - blkdev_issue_zeroout() generate number of zero filed write bios. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r--include/linux/blkdev.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 59b9aed0ee7..3ac2bd2fc48 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1008,7 +1008,8 @@ extern int blkdev_issue_flush(struct block_device *, gfp_t, sector_t *,
unsigned long);
extern int blkdev_issue_discard(struct block_device *bdev, sector_t sector,
sector_t nr_sects, gfp_t gfp_mask, unsigned long flags);
-
+extern int blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
+ sector_t nr_sects, gfp_t gfp_mask, unsigned long flags);
static inline int sb_issue_discard(struct super_block *sb,
sector_t block, sector_t nr_blocks)
{