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| author |   Lukas Czerner <lczerner@redhat.com> | 2010-10-27 21:30:04 -0400 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2010-10-27 21:30:04 -0400 |
| commit | e6fa0be699449d28a20e815bfe9ce26725ec4962 (patch) | |
| tree | 2e979f57060c50a73eef51fdbc19d4666d463c4e /include/linux/blkdev.h | |
| parent | jbd2: Add sanity check for attempts to start handle during umount (diff) | |
| download | linux-dev-e6fa0be699449d28a20e815bfe9ce26725ec4962.tar.xz linux-dev-e6fa0be699449d28a20e815bfe9ce26725ec4962.zip | |
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 <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 2c54906f678f..e5cb4d029689 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); |