If reflink is enabled, don't freak out if there are multiple owners of
a given block; that's just a sign that each of those owners are
reflink files.
v2: owner and offset are unsigned types, so use those for inorder
comparison.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
repair/dinode.c | 66 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
repair/scan.c | 42 ++++++++++++++++++++++++++++++++++-
2 files changed, 107 insertions(+), 1 deletion(-)
diff --git a/repair/dinode.c b/repair/dinode.c
index 16e0a06..98afdc9 100644
--- a/repair/dinode.c
+++ b/repair/dinode.c
@@ -722,6 +722,9 @@ _("Fatal error: inode %" PRIu64 " - blkmap_set_ext(): %s\n"
* checking each entry without setting the
* block bitmap
*/
+ if (type == XR_INO_DATA &&
+ xfs_sb_version_hasreflink(&mp->m_sb))
+ goto skip_dup;
if (search_dup_extent(agno, agbno, ebno)) {
do_warn(
_("%s fork in ino %" PRIu64 " claims dup extent, "
@@ -731,6 +734,7 @@ _("%s fork in ino %" PRIu64 " claims dup extent, "
irec.br_blockcount);
goto done;
}
+skip_dup:
*tot += irec.br_blockcount;
continue;
}
@@ -770,6 +774,9 @@ _("%s fork in inode %" PRIu64 " claims metadata block %" PRIu64 "\n"),
case XR_E_INUSE:
case XR_E_MULT:
set_bmap_ext(agno, agbno, blen, XR_E_MULT);
+ if (type == XR_INO_DATA &&
+ xfs_sb_version_hasreflink(&mp->m_sb))
+ break;
do_warn(
_("%s fork in %s inode %" PRIu64 " claims used block %" PRIu64 "\n"),
forkname, ftype, ino, b);
@@ -2475,6 +2482,65 @@ _("bad (negative) size %" PRId64 " on inode %" PRIu64 "\n"),
}
}
+ /*
+ * check that we only have valid flags2 set, and those that are set make
+ * sense.
+ */
+ if (dino->di_version >= 3) {
+ uint16_t flags = be16_to_cpu(dino->di_flags);
+ uint64_t flags2 = be64_to_cpu(dino->di_flags2);
+
+ if (flags2 & ~XFS_DIFLAG2_ANY) {
+ if (!uncertain) {
+ do_warn(
+ _("Bad flags2 set in inode %" PRIu64 "\n"),
+ lino);
+ }
+ flags2 &= XFS_DIFLAG2_ANY;
+ }
+
+ if ((flags2 & XFS_DIFLAG2_REFLINK) &&
+ !xfs_sb_version_hasreflink(&mp->m_sb)) {
+ if (!uncertain) {
+ do_warn(
+ _("inode %" PRIu64 " is marked reflinked but file system does not support reflink\n"),
+ lino);
+ }
+ goto clear_bad_out;
+ }
+
+ if (flags2 & XFS_DIFLAG2_REFLINK) {
+ /* must be a file */
+ if (di_mode && !S_ISREG(di_mode)) {
+ if (!uncertain) {
+ do_warn(
+ _("reflink flag set on non-file inode %" PRIu64 "\n"),
+ lino);
+ }
+ goto clear_bad_out;
+ }
+ }
+
+ if ((flags2 & XFS_DIFLAG2_REFLINK) &&
+ (flags & (XFS_DIFLAG_REALTIME | XFS_DIFLAG_RTINHERIT))) {
+ if (!uncertain) {
+ do_warn(
+ _("Cannot have a reflinked realtime inode %" PRIu64 "\n"),
+ lino);
+ }
+ goto clear_bad_out;
+ }
+
+ if (!verify_mode && flags2 != be64_to_cpu(dino->di_flags2)) {
+ if (!no_modify) {
+ do_warn(_("fixing bad flags2.\n"));
+ dino->di_flags2 = cpu_to_be64(flags2);
+ *dirty = 1;
+ } else
+ do_warn(_("would fix bad flags2.\n"));
+ }
+ }
+
if (verify_mode)
return retval;
diff --git a/repair/scan.c b/repair/scan.c
index c27f969..d3a1a82 100644
--- a/repair/scan.c
+++ b/repair/scan.c
@@ -872,6 +872,15 @@ _("in use block (%d,%d-%d) mismatch in %s tree, state - %d,%" PRIx64 "\n"),
* be caught later.
*/
break;
+ case XR_E_INUSE1:
+ /*
+ * multiple inode owners are ok with
+ * reflink enabled
+ */
+ if (xfs_sb_version_hasreflink(&mp->m_sb) &&
+ !XFS_RMAP_NON_INODE_OWNER(owner))
+ break;
+ /* fall through */
default:
do_warn(
_("unknown block (%d,%d-%d) mismatch on %s tree, state - %d,%" PRIx64 "\n"),
@@ -888,6 +897,28 @@ struct rmap_priv {
xfs_agblock_t nr_blocks;
};
+static bool
+rmap_in_order(
+ xfs_agblock_t b,
+ xfs_agblock_t lastblock,
+ uint64_t owner,
+ uint64_t lastowner,
+ uint64_t offset,
+ uint64_t lastoffset)
+{
+ if (b > lastblock)
+ return true;
+ else if (b < lastblock)
+ return false;
+
+ if (owner > lastowner)
+ return true;
+ else if (owner < lastowner)
+ return false;
+
+ return offset > lastoffset;
+}
+
static void
scan_rmapbt(
struct xfs_btree_block *block,
@@ -908,6 +939,8 @@ scan_rmapbt(
int numrecs;
int state;
xfs_agblock_t lastblock = 0;
+ uint64_t lastowner = 0;
+ uint64_t lastoffset = 0;
struct xfs_rmap_key *kp;
struct xfs_rmap_irec key = {0};
@@ -1038,10 +1071,17 @@ _("%s rmap btree block claimed (state %d), agno %d, bno %d, suspect %d\n"),
if (i == 0) {
advance:
lastblock = b;
+ lastowner = owner;
+ lastoffset = offset;
} else {
bool bad;
- bad = b <= lastblock;
+ if (xfs_sb_version_hasreflink(&mp->m_sb))
+ bad = !rmap_in_order(b, lastblock,
+ owner, lastowner,
+ offset, lastoffset);
+ else
+ bad = b <= lastblock;
if (bad)
do_warn(
_("out-of-order rmap btree record %d (%u %"PRId64" %"PRIx64" %u) block %u/%u\n"),
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