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authorDarrick J. Wong <djwong@kernel.org>2024-11-03 20:19:31 -0800
committerDarrick J. Wong <djwong@kernel.org>2024-11-05 13:38:43 -0800
commitea99122b18ca6cf902417e1acbc19a197f662299 (patch)
tree469615e012b836bee7a59eb6f99f25db29c951f4
parentxfs: scrub metadir paths for rtgroup metadata (diff)
downloadwireguard-linux-ea99122b18ca6cf902417e1acbc19a197f662299.tar.xz
wireguard-linux-ea99122b18ca6cf902417e1acbc19a197f662299.zip
xfs: mask off the rtbitmap and summary inodes when metadir in use
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>
-rw-r--r--fs/xfs/libxfs/xfs_sb.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
index c55ccecaccbd..1af7029753ea 100644
--- a/fs/xfs/libxfs/xfs_sb.c
+++ b/fs/xfs/libxfs/xfs_sb.c
@@ -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);
}
}