From: Darrick J. Wong <djwong@xxxxxxxxxx>
Track whether or not inodes thought they were metadata inodes. We
cannot allow metadata inodes to appear in the regular directory tree,
and we cannot allow regular inodes to appear in the metadata directory
tree.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
repair/dinode.c | 21 +++++++++++++++++
repair/incore.h | 19 +++++++++++++++
repair/incore_ino.c | 1 +
repair/phase6.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 104 insertions(+)
diff --git a/repair/dinode.c b/repair/dinode.c
index cf517f77173..eae64a0556f 100644
--- a/repair/dinode.c
+++ b/repair/dinode.c
@@ -2354,6 +2354,7 @@ process_dinode_int(
struct xfs_dinode *dino = *dinop;
xfs_agino_t unlinked_ino;
struct xfs_perag *pag;
+ bool is_meta = false;
*dirty = *isa_dir = 0;
*used = is_used;
@@ -2926,6 +2927,18 @@ _("Bad CoW extent size %u on inode %" PRIu64 ", "),
if (collect_rmaps)
record_inode_reflink_flag(mp, dino, agno, ino, lino);
+ /* Does this inode think it was metadata? */
+ if (dino->di_version >= 3 &&
+ (dino->di_flags2 & cpu_to_be64(XFS_DIFLAG2_METADATA))) {
+ struct ino_tree_node *irec;
+ int off;
+
+ irec = find_inode_rec(mp, agno, ino);
+ off = get_inode_offset(mp, lino, irec);
+ set_inode_is_meta(irec, off);
+ is_meta = true;
+ }
+
/*
* check data fork -- if it's bad, clear the inode
*/
@@ -3012,6 +3025,14 @@ _("Bad CoW extent size %u on inode %" PRIu64 ", "),
*used = is_free;
*isa_dir = 0;
blkmap_free(dblkmap);
+ if (is_meta) {
+ struct ino_tree_node *irec;
+ int off;
+
+ irec = find_inode_rec(mp, agno, ino);
+ off = get_inode_offset(mp, lino, irec);
+ clear_inode_is_meta(irec, off);
+ }
return 1;
}
diff --git a/repair/incore.h b/repair/incore.h
index 8a1a39ec60c..0027593ae31 100644
--- a/repair/incore.h
+++ b/repair/incore.h
@@ -274,6 +274,7 @@ typedef struct ino_tree_node {
uint64_t ino_isa_dir; /* bit == 1 if a directory */
uint64_t ino_was_rl; /* bit == 1 if reflink flag set */
uint64_t ino_is_rl; /* bit == 1 if reflink flag should be set */
+ uint64_t ino_was_meta; /* bit == 1 if metadata */
uint8_t nlink_size;
union ino_nlink disk_nlinks; /* on-disk nlinks, set in P3 */
union {
@@ -541,6 +542,24 @@ static inline int inode_is_rl(struct ino_tree_node *irec, int offset)
return (irec->ino_is_rl & IREC_MASK(offset)) != 0;
}
+/*
+ * set/clear/test was inode marked as metadata
+ */
+static inline void set_inode_is_meta(struct ino_tree_node *irec, int offset)
+{
+ irec->ino_was_meta |= IREC_MASK(offset);
+}
+
+static inline void clear_inode_is_meta(struct ino_tree_node *irec, int offset)
+{
+ irec->ino_was_meta &= ~IREC_MASK(offset);
+}
+
+static inline int inode_is_meta(struct ino_tree_node *irec, int offset)
+{
+ return (irec->ino_was_meta & IREC_MASK(offset)) != 0;
+}
+
/*
* add_inode_reached() is set on inode I only if I has been reached
* by an inode P claiming to be the parent and if I is a directory,
diff --git a/repair/incore_ino.c b/repair/incore_ino.c
index 0dd7a2f060f..ef74e64f308 100644
--- a/repair/incore_ino.c
+++ b/repair/incore_ino.c
@@ -253,6 +253,7 @@ alloc_ino_node(
irec->ino_isa_dir = 0;
irec->ino_was_rl = 0;
irec->ino_is_rl = 0;
+ irec->ino_was_meta = 0;
irec->ir_free = (xfs_inofree_t) - 1;
irec->ir_sparse = 0;
irec->ino_un.ex_data = NULL;
diff --git a/repair/phase6.c b/repair/phase6.c
index 4bdea2a2a38..3e740079235 100644
--- a/repair/phase6.c
+++ b/repair/phase6.c
@@ -1905,6 +1905,38 @@ longform_dir2_entry_check_data(
continue;
}
+ /*
+ * Regular directories cannot point to metadata files. If
+ * we find such a thing, blow out the entry.
+ */
+ if (!xfs_is_metadata_inode(ip) &&
+ inode_is_meta(irec, ino_offset)) {
+ nbad++;
+ if (entry_junked(
+ _("entry \"%s\" in regular dir %" PRIu64" points to a metadata inode %" PRIu64 "\n"),
+ fname, ip->i_ino, inum)) {
+ dep->name[0] = '/';
+ libxfs_dir2_data_log_entry(&da, bp, dep);
+ }
+ continue;
+ }
+
+ /*
+ * Metadata directories cannot point to regular files. If
+ * we find such a thing, blow out the entry.
+ */
+ if (xfs_is_metadata_inode(ip) &&
+ !inode_is_meta(irec, ino_offset)) {
+ nbad++;
+ if (entry_junked(
+ _("entry \"%s\" in metadata dir %" PRIu64" points to a regular inode %" PRIu64 "\n"),
+ fname, ip->i_ino, inum)) {
+ dep->name[0] = '/';
+ libxfs_dir2_data_log_entry(&da, bp, dep);
+ }
+ continue;
+ }
+
/*
* check if this inode is lost+found dir in the root
*/
@@ -2815,6 +2847,37 @@ shortform_dir2_entry_check(
ino_dirty);
continue;
}
+
+ /*
+ * Regular directories cannot point to metadata files. If
+ * we find such a thing, blow out the entry.
+ */
+ if (!xfs_is_metadata_inode(ip) &&
+ inode_is_meta(irec, ino_offset)) {
+ do_warn(
+ _("entry \"%s\" in regular dir %" PRIu64" points to a metadata inode %" PRIu64 "\n"),
+ fname, ip->i_ino, lino);
+ next_sfep = shortform_dir2_junk(mp, sfp, sfep, lino,
+ &max_size, &i, &bytes_deleted,
+ ino_dirty);
+ continue;
+ }
+
+ /*
+ * Metadata directories cannot point to regular files. If
+ * we find such a thing, blow out the entry.
+ */
+ if (xfs_is_metadata_inode(ip) &&
+ !inode_is_meta(irec, ino_offset)) {
+ do_warn(
+ _("entry \"%s\" in metadata dir %" PRIu64" points to a regular inode %" PRIu64 "\n"),
+ fname, ip->i_ino, lino);
+ next_sfep = shortform_dir2_junk(mp, sfp, sfep, lino,
+ &max_size, &i, &bytes_deleted,
+ ino_dirty);
+ continue;
+ }
+
/*
* check if this inode is lost+found dir in the root
*/
