From: Allison Henderson <allison.henderson@xxxxxxxxxx>
Reservationless operations are not allowed with parent pointers because
the attr expansion may cause a shutdown if an operation is retried without
reservation and succeeds without enough space for the parent pointer. Add
tracing to detect if this shutdown occurs.
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Allison Henderson <allison.henderson@xxxxxxxxxx>
---
fs/xfs/xfs_trans.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 7e656dd42362..e32aa547222e 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -375,8 +375,10 @@ xfs_trans_mod_sb(
*/
if (delta < 0) {
tp->t_blk_res_used += (uint)-delta;
- if (tp->t_blk_res_used > tp->t_blk_res)
+ if (tp->t_blk_res_used > tp->t_blk_res) {
+ xfs_err(mp, "URK blkres 0x%x used 0x%x", tp->t_blk_res, tp->t_blk_res_used);
xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
+ }
} else if (delta > 0 && (tp->t_flags & XFS_TRANS_RES_FDBLKS)) {
int64_t blkres_delta;
--
2.25.1
