Add helper function for blkdev_issue_zeroout (sb_issue_discard)

This is done the same way as helper sb_issue_discard for blkdev_issue_discard. Signed-off-by: Lukas Czerner <[email protected]> Signed-off-by: "Theodore Ts'o" <[email protected]>
zandrey · Oct 28, 2010 · e6fa0be · e6fa0be
1 parent 5c2178e
commit e6fa0be
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
@@ -941,6 +941,14 @@ static inline int sb_issue_discard(struct super_block *sb,
 	return blkdev_issue_discard(sb->s_bdev, block, nr_blocks, GFP_NOFS,
 				   BLKDEV_IFL_WAIT | BLKDEV_IFL_BARRIER);
 }
+static inline int sb_issue_zeroout(struct super_block *sb, sector_t block,
+		sector_t nr_blocks, gfp_t gfp_mask, unsigned long flags)
+{
+	return blkdev_issue_zeroout(sb->s_bdev,
+				    block << (sb->s_blocksize_bits - 9),
+				    nr_blocks << (sb->s_blocksize_bits - 9),
+				    gfp_mask, flags);
+}
 
 extern int blk_verify_command(unsigned char *cmd, fmode_t has_write_perm);