unimore/kernel-hacking-2024-linux-steffo
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bcachefs: remove_backpointer() now checks if dirent points to inode

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-09-23 22:27:13 -04:00
parent a6508079b1
commit 0b0f0ad93c
1 changed files with 9 additions and 6 deletions
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15
fs/bcachefs/fsck.c
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@ -389,14 +389,17 @@ static int reattach_inode(struct btree_trans *trans,
static int remove_backpointer(struct btree_trans *trans,
struct bch_inode_unpacked *inode)
{
struct btree_iter iter;
struct bkey_s_c_dirent d;
int ret;
if (!inode->bi_dir)
return 0;
d = bch2_bkey_get_iter_typed(trans, &iter, BTREE_ID_dirents,
POS(inode->bi_dir, inode->bi_dir_offset), 0,
struct bch_fs *c = trans->c;
struct btree_iter iter;
struct bkey_s_c_dirent d =
bch2_bkey_get_iter_typed(trans, &iter, BTREE_ID_dirents,
SPOS(inode->bi_dir, inode->bi_dir_offset, inode->bi_snapshot), 0,
dirent);
ret = bkey_err(d) ?:
int ret = bkey_err(d) ?:
dirent_points_to_inode(c, d, inode) ?:
__remove_dirent(trans, d.k->p);
bch2_trans_iter_exit(trans, &iter);
return ret;