Further this needs your review. How should be a complete use case
of this init-csum-tree feature. mainly how do we expect this work
in the real scenario. what problem does this solve.
Thanks, Anand
On 12/02/13 02:11 PM, Anand Jain wrote:
btrfsck reports backref error after running init-csum-tree
btrfsck --init-csum-tree /dev/sdc
btrfsck /dev/sdc
::
ref mismatch on [29474816 16384] extent item 1, found 0
Backref 29474816 root 7 not referenced back 0x1101d30
Incorrect global backref count on 29474816 found 1 wanted 0
backpointer mismatch on [29474816 16384]
owner ref check failed [29474816 16384]
Errors found in extent allocation tree or chunk allocation
::
Signed-off-by: Anand Jain <anand.j...@oracle.com>
---
cmds-check.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/cmds-check.c b/cmds-check.c
index afad8a1..6a8d351 100644
--- a/cmds-check.c
+++ b/cmds-check.c
@@ -6161,6 +6161,7 @@ int cmd_check(int argc, char **argv)
} else if (option_index == 2) {
printf("Creating a new CRC tree\n");
init_csum_tree = 1;
+ repair = 1;
ctree_flags |= OPEN_CTREE_WRITES;
} else if (option_index == 3) {
init_extent_tree = 1;
@@ -6234,6 +6235,11 @@ int cmd_check(int argc, char **argv)
ret = btrfs_commit_transaction(trans, info->csum_root);
if (ret)
exit(1);
+
+ ret = check_chunks_and_extents(root);
+ if (ret)
+ fprintf(stderr,
+ "Errors found in extent allocation tree or chunk
allocation\n");
goto out;
}
ret = check_chunks_and_extents(root);
--
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