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Diffstat (limited to 'fs/xfs/scrub/bmap.c')
-rw-r--r--fs/xfs/scrub/bmap.c81
1 files changed, 48 insertions, 33 deletions
diff --git a/fs/xfs/scrub/bmap.c b/fs/xfs/scrub/bmap.c
index 1bd29fdc2ab5..fa6ea6407992 100644
--- a/fs/xfs/scrub/bmap.c
+++ b/fs/xfs/scrub/bmap.c
@@ -75,6 +75,7 @@ struct xchk_bmap_info {
xfs_fileoff_t lastoff;
bool is_rt;
bool is_shared;
+ bool was_loaded;
int whichfork;
};
@@ -213,25 +214,20 @@ xchk_bmap_xref_rmap(
/* Cross-reference a single rtdev extent record. */
STATIC void
-xchk_bmap_rt_extent_xref(
- struct xchk_bmap_info *info,
+xchk_bmap_rt_iextent_xref(
struct xfs_inode *ip,
- struct xfs_btree_cur *cur,
+ struct xchk_bmap_info *info,
struct xfs_bmbt_irec *irec)
{
- if (info->sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
- return;
-
xchk_xref_is_used_rt_space(info->sc, irec->br_startblock,
irec->br_blockcount);
}
/* Cross-reference a single datadev extent record. */
STATIC void
-xchk_bmap_extent_xref(
- struct xchk_bmap_info *info,
+xchk_bmap_iextent_xref(
struct xfs_inode *ip,
- struct xfs_btree_cur *cur,
+ struct xchk_bmap_info *info,
struct xfs_bmbt_irec *irec)
{
struct xfs_mount *mp = info->sc->mp;
@@ -240,9 +236,6 @@ xchk_bmap_extent_xref(
xfs_extlen_t len;
int error;
- if (info->sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
- return;
-
agno = XFS_FSB_TO_AGNO(mp, irec->br_startblock);
agbno = XFS_FSB_TO_AGBNO(mp, irec->br_startblock);
len = irec->br_blockcount;
@@ -300,20 +293,15 @@ xchk_bmap_dirattr_extent(
/* Scrub a single extent record. */
STATIC int
-xchk_bmap_extent(
+xchk_bmap_iextent(
struct xfs_inode *ip,
- struct xfs_btree_cur *cur,
struct xchk_bmap_info *info,
struct xfs_bmbt_irec *irec)
{
struct xfs_mount *mp = info->sc->mp;
- struct xfs_buf *bp = NULL;
xfs_filblks_t end;
int error = 0;
- if (cur)
- xfs_btree_get_block(cur, 0, &bp);
-
/*
* Check for out-of-order extents. This record could have come
* from the incore list, for which there is no ordering check.
@@ -364,10 +352,13 @@ xchk_bmap_extent(
xchk_fblock_set_corrupt(info->sc, info->whichfork,
irec->br_startoff);
+ if (info->sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+ return 0;
+
if (info->is_rt)
- xchk_bmap_rt_extent_xref(info, ip, cur, irec);
+ xchk_bmap_rt_iextent_xref(ip, info, irec);
else
- xchk_bmap_extent_xref(info, ip, cur, irec);
+ xchk_bmap_iextent_xref(ip, info, irec);
info->lastoff = irec->br_startoff + irec->br_blockcount;
return error;
@@ -380,10 +371,13 @@ xchk_bmapbt_rec(
union xfs_btree_rec *rec)
{
struct xfs_bmbt_irec irec;
+ struct xfs_bmbt_irec iext_irec;
+ struct xfs_iext_cursor icur;
struct xchk_bmap_info *info = bs->private;
struct xfs_inode *ip = bs->cur->bc_private.b.ip;
struct xfs_buf *bp = NULL;
struct xfs_btree_block *block;
+ struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, info->whichfork);
uint64_t owner;
int i;
@@ -402,9 +396,26 @@ xchk_bmapbt_rec(
}
}
- /* Set up the in-core record and scrub it. */
+ /*
+ * Check that the incore extent tree contains an extent that matches
+ * this one exactly. We validate those cached bmaps later, so we don't
+ * need to check them here. If the incore extent tree was just loaded
+ * from disk by the scrubber, we assume that its contents match what's
+ * on disk (we still hold the ILOCK) and skip the equivalence check.
+ */
+ if (!info->was_loaded)
+ return 0;
+
xfs_bmbt_disk_get_all(&rec->bmbt, &irec);
- return xchk_bmap_extent(ip, bs->cur, info, &irec);
+ if (!xfs_iext_lookup_extent(ip, ifp, irec.br_startoff, &icur,
+ &iext_irec) ||
+ irec.br_startoff != iext_irec.br_startoff ||
+ irec.br_startblock != iext_irec.br_startblock ||
+ irec.br_blockcount != iext_irec.br_blockcount ||
+ irec.br_state != iext_irec.br_state)
+ xchk_fblock_set_corrupt(bs->sc, info->whichfork,
+ irec.br_startoff);
+ return 0;
}
/* Scan the btree records. */
@@ -415,15 +426,26 @@ xchk_bmap_btree(
struct xchk_bmap_info *info)
{
struct xfs_owner_info oinfo;
+ struct xfs_ifork *ifp = XFS_IFORK_PTR(sc->ip, whichfork);
struct xfs_mount *mp = sc->mp;
struct xfs_inode *ip = sc->ip;
struct xfs_btree_cur *cur;
int error;
+ /* Load the incore bmap cache if it's not loaded. */
+ info->was_loaded = ifp->if_flags & XFS_IFEXTENTS;
+ if (!info->was_loaded) {
+ error = xfs_iread_extents(sc->tp, ip, whichfork);
+ if (!xchk_fblock_process_error(sc, whichfork, 0, &error))
+ goto out;
+ }
+
+ /* Check the btree structure. */
cur = xfs_bmbt_init_cursor(mp, sc->tp, ip, whichfork);
xfs_rmap_ino_bmbt_owner(&oinfo, ip->i_ino, whichfork);
error = xchk_btree(sc, cur, xchk_bmapbt_rec, &oinfo, info);
xfs_btree_del_cursor(cur, error);
+out:
return error;
}
@@ -500,7 +522,7 @@ xchk_bmap_check_rmap(
out:
if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
- return XFS_BTREE_QUERY_RANGE_ABORT;
+ return -ECANCELED;
return 0;
}
@@ -529,7 +551,7 @@ xchk_bmap_check_ag_rmaps(
sbcri.sc = sc;
sbcri.whichfork = whichfork;
error = xfs_rmap_query_all(cur, xchk_bmap_check_rmap, &sbcri);
- if (error == XFS_BTREE_QUERY_RANGE_ABORT)
+ if (error == -ECANCELED)
error = 0;
xfs_btree_del_cursor(cur, error);
@@ -671,13 +693,6 @@ xchk_bmap(
if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
goto out;
- /* Now try to scrub the in-memory extent list. */
- if (!(ifp->if_flags & XFS_IFEXTENTS)) {
- error = xfs_iread_extents(sc->tp, ip, whichfork);
- if (!xchk_fblock_process_error(sc, whichfork, 0, &error))
- goto out;
- }
-
/* Find the offset of the last extent in the mapping. */
error = xfs_bmap_last_offset(ip, &endoff, whichfork);
if (!xchk_fblock_process_error(sc, whichfork, 0, &error))
@@ -689,7 +704,7 @@ xchk_bmap(
for_each_xfs_iext(ifp, &icur, &irec) {
if (xchk_should_terminate(sc, &error) ||
(sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT))
- break;
+ goto out;
if (isnullstartblock(irec.br_startblock))
continue;
if (irec.br_startoff >= endoff) {
@@ -697,7 +712,7 @@ xchk_bmap(
irec.br_startoff);
goto out;
}
- error = xchk_bmap_extent(ip, NULL, &info, &irec);
+ error = xchk_bmap_iextent(ip, &info, &irec);
if (error)
goto out;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-21 08:13:44 +0000