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xfs: Fix xfs_prepare_shift() range for RT

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The RT extent range must be considered in the xfs_flush_unmap_range() call
to stabilize the boundary.

This code change is originally from Dave Chinner.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
This commit is contained in:
John Garry
2024-05-28 17:15:10 +00:00
committed by Chandan Babu R
parent d3b689d7c7
commit f23660f059
1 changed files with 6 additions and 4 deletions
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fs/xfs/xfs_bmap_util.c
+6 -4
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@@ -902,7 +902,7 @@ xfs_prepare_shift(
struct xfs_inode *ip, struct xfs_inode *ip,
loff_t offset) loff_t offset)
{ {
struct xfs_mount *mp = ip->i_mount; unsigned int rounding;
int error; int error;
/* /*
@@ -920,11 +920,13 @@ xfs_prepare_shift(
* with the full range of the operation. If we don't, a COW writeback * with the full range of the operation. If we don't, a COW writeback
* completion could race with an insert, front merge with the start * completion could race with an insert, front merge with the start
* extent (after split) during the shift and corrupt the file. Start * extent (after split) during the shift and corrupt the file. Start
* with the block just prior to the start to stabilize the boundary. * with the allocation unit just prior to the start to stabilize the
* boundary.
*/ */
offset = round_down(offset, mp->m_sb.sb_blocksize); rounding = xfs_inode_alloc_unitsize(ip);
offset = rounddown_64(offset, rounding);
if (offset) if (offset)
offset -= mp->m_sb.sb_blocksize; offset -= rounding;
/* /*
* Writeback and invalidate cache for the remainder of the file as we're * Writeback and invalidate cache for the remainder of the file as we're