From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Teach xfs_check to record cow staging events correctly. This means that
we strip off the high bit before using startblock.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
db/check.c | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/db/check.c b/db/check.c
index 3afde02..2f8dee5 100644
--- a/db/check.c
+++ b/db/check.c
@@ -4730,13 +4730,24 @@ scanfunc_refcnt(
lastblock = 0;
for (i = 0; i < be16_to_cpu(block->bb_numrecs); i++) {
if (be32_to_cpu(rp[i].rc_refcount) == 1) {
- dbprintf(_(
- "leftover CoW extent (%u/%u) len %u\n"),
+ xfs_agblock_t agbno;
+ char *msg;
+
+ agbno = be32_to_cpu(rp[i].rc_startblock);
+ if (agbno >= XFS_REFC_COW_START) {
+ agbno -= XFS_REFC_COW_START;
+ msg = _(
+ "leftover CoW extent (%u/%u) len %u\n");
+ } else {
+ msg = _(
+ "leftover CoW extent at unexpected address (%u/%u) len %u\n");
+ }
+ dbprintf(msg,
seqno,
- be32_to_cpu(rp[i].rc_startblock),
+ agbno,
be32_to_cpu(rp[i].rc_blockcount));
set_dbmap(seqno,
- be32_to_cpu(rp[i].rc_startblock),
+ agbno,
be32_to_cpu(rp[i].rc_blockcount),
DBM_COWDATA, seqno, bno);
} else {
--
To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
