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[v2,5/7] Btrfs: remove BUG() in add_data_reference

Message ID 20170807215531.12423-6-bo.li.liu@oracle.com (mailing list archive)
State New, archived
Headers show

Commit Message

Liu Bo Aug. 7, 2017, 9:55 p.m. UTC 
Now that we have a helper to report invalid value of extent inline ref
type, we need to quit gracefully instead of throwing out a kernel panic.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
---
 fs/btrfs/relocation.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index f0bef3c..4806e78 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3774,7 +3774,10 @@  int add_data_references(struct reloc_control *rc,
 			ret = find_data_references(rc, extent_key,
 						   eb, dref, blocks);
 		} else {
-			BUG();
+			ret = -EINVAL;
+			WARN(1,
+		     "extent %llu slot %d has an invalid inline ref type\n",
+			     eb->start, path->slots[0]);
 		}
 		if (ret) {
 			err = ret;