Commit e6fa0be6 authored by Lukas Czerner's avatar Lukas Czerner Committed by Theodore Ts'o
Browse files

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: default avatarLukas Czerner <lczerner@redhat.com>
Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
parent 5c2178e7

include/linux/blkdev.h

+8 −0
Original line number Diff line number Diff line
@@ -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);