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xfs: create rt extent rounding helpers for realtime extent blocks

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Create a pair of functions to round rtblock numbers up or down to the
nearest rt extent.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2023-10-16 09:38:28 -07:00
parent 055641248f
commit 5f57f7309d
2 changed files with 21 additions and 5 deletions
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18
fs/xfs/libxfs/xfs_rtbitmap.h
View File

@ -84,6 +84,24 @@ xfs_rtb_to_rtxup(
return rtbno;
}
/* Round this rtblock up to the nearest rt extent size. */
static inline xfs_rtblock_t
xfs_rtb_roundup_rtx(
struct xfs_mount *mp,
xfs_rtblock_t rtbno)
{
return roundup_64(rtbno, mp->m_sb.sb_rextsize);
}
/* Round this rtblock down to the nearest rt extent size. */
static inline xfs_rtblock_t
xfs_rtb_rounddown_rtx(
struct xfs_mount *mp,
xfs_rtblock_t rtbno)
{
return rounddown_64(rtbno, mp->m_sb.sb_rextsize);
}
/*
* Functions for walking free space rtextents in the realtime bitmap.
*/

8
fs/xfs/xfs_bmap_util.c
View File

@ -684,7 +684,7 @@ xfs_can_free_eofblocks(
*/
end_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_ISIZE(ip));
if (XFS_IS_REALTIME_INODE(ip) && mp->m_sb.sb_rextsize > 1)
end_fsb = roundup_64(end_fsb, mp->m_sb.sb_rextsize);
end_fsb = xfs_rtb_roundup_rtx(mp, end_fsb);
last_fsb = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes);
if (last_fsb <= end_fsb)
return false;
@ -983,10 +983,8 @@ xfs_free_file_space(
/* We can only free complete realtime extents. */
if (XFS_IS_REALTIME_INODE(ip) && mp->m_sb.sb_rextsize > 1) {
startoffset_fsb = roundup_64(startoffset_fsb,
mp->m_sb.sb_rextsize);
endoffset_fsb = rounddown_64(endoffset_fsb,
mp->m_sb.sb_rextsize);
startoffset_fsb = xfs_rtb_roundup_rtx(mp, startoffset_fsb);
endoffset_fsb = xfs_rtb_rounddown_rtx(mp, endoffset_fsb);
}
/*