From: Lukas Czerner Date: Thu, 28 Oct 2010 01:30:04 +0000 (-0400) Subject: Add helper function for blkdev_issue_zeroout (sb_issue_discard) X-Git-Tag: upstream/snapshot3+hdmi~12618^2^2~39 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e6fa0be699449d28a20e815bfe9ce26725ec4962;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git 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 Signed-off-by: "Theodore Ts'o" --- diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 2c54906..e5cb4d0 100644 --- 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);