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xfs: simplify sector number calculation in xfs_zero_extent

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xfs_zero_extent does some really odd gymnstics to calculate the block
layer sectors numbers passed to blkdev_issue_zeroout.  This is because it
used to call sb_issue_zeroout and the calculations in that helper got
open coded here in the rather misleadingly named commit 3dc2916107
("dax: use sb_issue_zerout instead of calling dax_clear_sectors").

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
This commit is contained in:
Christoph Hellwig 2024-10-31 14:08:35 +01:00 committed by Carlos Maiolino
parent 8b9b261594
commit 792ef2745d
1 changed files with 4 additions and 13 deletions
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17
fs/xfs/xfs_bmap_util.c
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@ -47,10 +47,6 @@ xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb)
/*
* Routine to zero an extent on disk allocated to the specific inode.
*
* The VFS functions take a linearised filesystem block offset, so we have to
* convert the sparse xfs fsb to the right format first.
* VFS types are real funky, too.
*/
int
xfs_zero_extent(
@ -58,15 +54,10 @@ xfs_zero_extent(
xfs_fsblock_t start_fsb,
xfs_off_t count_fsb)
{
struct xfs_mount *mp = ip->i_mount;
struct xfs_buftarg *target = xfs_inode_buftarg(ip);
xfs_daddr_t sector = xfs_fsb_to_db(ip, start_fsb);
sector_t block = XFS_BB_TO_FSBT(mp, sector);
return blkdev_issue_zeroout(target->bt_bdev,
block << (mp->m_super->s_blocksize_bits - 9),
count_fsb << (mp->m_super->s_blocksize_bits - 9),
GFP_KERNEL, 0);
return blkdev_issue_zeroout(xfs_inode_buftarg(ip)->bt_bdev,
xfs_fsb_to_db(ip, start_fsb),
XFS_FSB_TO_BB(ip->i_mount, count_fsb),
GFP_KERNEL, 0);
}
/*