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[09/12] Btrfs-progs: add a dummy backref if our location is wrong

Message ID 1412974637-31334-10-git-send-email-jbacik@fb.com (mailing list archive)
State Accepted
Headers show

Commit Message

Josef Bacik Oct. 10, 2014, 8:57 p.m. UTC
If our location is bogus in our dir item we were just skipping the thing.
However in this case we want to just delete the dir index, so create a dummy
inode rec using BTRFS_MULTIPLE_OBJECTIDS and just add every backref we find to
the list so we know to straight up delete all of these items.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
---
 cmds-check.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/cmds-check.c b/cmds-check.c
index 8fdc542..ca890cc 100644
--- a/cmds-check.c
+++ b/cmds-check.c
@@ -551,6 +551,8 @@  static struct inode_backref *get_inode_backref(struct inode_record *rec,
 	struct inode_backref *backref;
 
 	list_for_each_entry(backref, &rec->backrefs, list) {
+		if (rec->ino == BTRFS_MULTIPLE_OBJECTIDS)
+			break;
 		if (backref->dir != dir || backref->namelen != namelen)
 			continue;
 		if (memcmp(name, backref->name, namelen))
@@ -990,7 +992,11 @@  static int process_dir_item(struct btrfs_root *root,
 					  namebuf, len, filetype,
 					  key->type, error);
 		} else {
-			fprintf(stderr, "warning line %d\n", __LINE__);
+			fprintf(stderr, "invalid location in dir item %u\n",
+				location.type);
+			add_inode_backref(inode_cache, BTRFS_MULTIPLE_OBJECTIDS,
+					  key->objectid, key->offset, namebuf,
+					  len, filetype, key->type, error);
 		}
 
 		len = sizeof(*di) + name_len + data_len;