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xfs: mask off the rtbitmap and summary inodes when metadir in use

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Set the rtbitmap and summary file inumbers to NULLFSINO in the
superblock and make sure they're zeroed whenever we write the superblock
to disk, to mimic mkfs behavior.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong
2024-11-03 20:19:31 -08:00
parent a74923333d
commit ea99122b18
1 changed files with 20 additions and 0 deletions
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20
fs/xfs/libxfs/xfs_sb.c
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@@ -655,6 +655,14 @@ xfs_validate_sb_common(
void
xfs_sb_quota_from_disk(struct xfs_sb *sbp)
{
if (xfs_sb_is_v5(sbp) &&
(sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_METADIR)) {
sbp->sb_uquotino = NULLFSINO;
sbp->sb_gquotino = NULLFSINO;
sbp->sb_pquotino = NULLFSINO;
return;
}
/*
* older mkfs doesn't initialize quota inodes to NULLFSINO. This
* leads to in-core values having two different values for a quota
@@ -783,6 +791,8 @@ __xfs_sb_from_disk(
to->sb_metadirino = be64_to_cpu(from->sb_metadirino);
to->sb_rgcount = be32_to_cpu(from->sb_rgcount);
to->sb_rgextents = be32_to_cpu(from->sb_rgextents);
to->sb_rbmino = NULLFSINO;
to->sb_rsumino = NULLFSINO;
} else {
to->sb_metadirino = NULLFSINO;
to->sb_rgcount = 1;
@@ -805,6 +815,14 @@ xfs_sb_quota_to_disk(
{
uint16_t qflags = from->sb_qflags;
if (xfs_sb_is_v5(from) &&
(from->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_METADIR)) {
to->sb_uquotino = cpu_to_be64(0);
to->sb_gquotino = cpu_to_be64(0);
to->sb_pquotino = cpu_to_be64(0);
return;
}
to->sb_uquotino = cpu_to_be64(from->sb_uquotino);
/*
@@ -940,6 +958,8 @@ xfs_sb_to_disk(
to->sb_metadirino = cpu_to_be64(from->sb_metadirino);
to->sb_rgcount = cpu_to_be32(from->sb_rgcount);
to->sb_rgextents = cpu_to_be32(from->sb_rgextents);
to->sb_rbmino = cpu_to_be64(0);
to->sb_rsumino = cpu_to_be64(0);
}
}