@@ -739,6 +739,23 @@ xchk_inode_check_reflink_iflag(
xchk_ino_set_corrupt(sc, ino);
}
+/*
+ * If this inode has zero link count, it must be on the unlinked list. If
+ * it has nonzero link count, it must not be on the unlinked list.
+ */
+STATIC void
+xchk_inode_check_unlinked(
+ struct xfs_scrub *sc)
+{
+ if (VFS_I(sc->ip)->i_nlink == 0) {
+ if (!xfs_inode_on_unlinked_list(sc->ip))
+ xchk_ino_set_corrupt(sc, sc->ip->i_ino);
+ } else {
+ if (xfs_inode_on_unlinked_list(sc->ip))
+ xchk_ino_set_corrupt(sc, sc->ip->i_ino);
+ }
+}
+
/* Scrub an inode. */
int
xchk_inode(
@@ -771,6 +788,8 @@ xchk_inode(
if (S_ISREG(VFS_I(sc->ip)->i_mode))
xchk_inode_check_reflink_iflag(sc, sc->ip->i_ino);
+ xchk_inode_check_unlinked(sc);
+
xchk_inode_xref(sc, sc->ip->i_ino, &di);
out:
return error;
@@ -1743,6 +1743,46 @@ xrep_inode_problems(
return xrep_roll_trans(sc);
}
+/*
+ * Make sure this inode's unlinked list pointers are consistent with its
+ * link count.
+ */
+STATIC int
+xrep_inode_unlinked(
+ struct xfs_scrub *sc)
+{
+ unsigned int nlink = VFS_I(sc->ip)->i_nlink;
+ int error;
+
+ /*
+ * If this inode is linked from the directory tree and on the unlinked
+ * list, remove it from the unlinked list.
+ */
+ if (nlink > 0 && xfs_inode_on_unlinked_list(sc->ip)) {
+ struct xfs_perag *pag;
+ int error;
+
+ pag = xfs_perag_get(sc->mp,
+ XFS_INO_TO_AGNO(sc->mp, sc->ip->i_ino));
+ error = xfs_iunlink_remove(sc->tp, pag, sc->ip);
+ xfs_perag_put(pag);
+ if (error)
+ return error;
+ }
+
+ /*
+ * If this inode is not linked from the directory tree yet not on the
+ * unlinked list, put it on the unlinked list.
+ */
+ if (nlink == 0 && !xfs_inode_on_unlinked_list(sc->ip)) {
+ error = xfs_iunlink(sc->tp, sc->ip);
+ if (error)
+ return error;
+ }
+
+ return 0;
+}
+
/* Repair an inode's fields. */
int
xrep_inode(
@@ -1792,5 +1832,10 @@ xrep_inode(
return error;
}
+ /* Reconnect incore unlinked list */
+ error = xrep_inode_unlinked(sc);
+ if (error)
+ return error;
+
return xrep_defer_finish(sc);
}
@@ -42,9 +42,6 @@
struct kmem_cache *xfs_inode_cache;
-STATIC int xfs_iunlink_remove(struct xfs_trans *tp, struct xfs_perag *pag,
- struct xfs_inode *);
-
/*
* helper function to extract extent size hint from inode
*/
@@ -2241,7 +2238,7 @@ xfs_iunlink_remove_inode(
/*
* Pull the on-disk inode from the AGI unlinked list.
*/
-STATIC int
+int
xfs_iunlink_remove(
struct xfs_trans *tp,
struct xfs_perag *pag,
@@ -617,6 +617,8 @@ extern struct kmem_cache *xfs_inode_cache;
bool xfs_inode_needs_inactive(struct xfs_inode *ip);
int xfs_iunlink(struct xfs_trans *tp, struct xfs_inode *ip);
+int xfs_iunlink_remove(struct xfs_trans *tp, struct xfs_perag *pag,
+ struct xfs_inode *ip);
void xfs_end_io(struct work_struct *work);