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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-02-09 21:01:04 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-03-13 21:22:24 -0400 |
| commit | 835cd3e147a9a8f8acfe7f3a405c582f04e90a33 (patch) | |
| tree | f83176bf70467c09faf943578cc48bcb72247299 /fs/bcachefs/fs-common.c | |
| parent | b26d79147f5ffaeabbda1cad556761965d6d85fe (diff) | |
| download | linux-835cd3e147a9a8f8acfe7f3a405c582f04e90a33.tar.gz linux-835cd3e147a9a8f8acfe7f3a405c582f04e90a33.tar.bz2 linux-835cd3e147a9a8f8acfe7f3a405c582f04e90a33.zip | |
bcachefs: Check for subvolume children when deleting subvolumes
Recursively destroying subvolumes isn't allowed yet.
Fixes: https://github.com/koverstreet/bcachefs/issues/634
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/fs-common.c')
| -rw-r--r-- | fs/bcachefs/fs-common.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/fs/bcachefs/fs-common.c b/fs/bcachefs/fs-common.c index 2aa388110597..624e6f963240 100644 --- a/fs/bcachefs/fs-common.c +++ b/fs/bcachefs/fs-common.c @@ -243,7 +243,7 @@ int bch2_unlink_trans(struct btree_trans *trans, struct bch_inode_unpacked *dir_u, struct bch_inode_unpacked *inode_u, const struct qstr *name, - bool deleting_snapshot) + bool deleting_subvol) { struct bch_fs *c = trans->c; struct btree_iter dir_iter = { NULL }; @@ -271,18 +271,25 @@ int bch2_unlink_trans(struct btree_trans *trans, if (ret) goto err; - if (!deleting_snapshot && S_ISDIR(inode_u->bi_mode)) { + if (!deleting_subvol && S_ISDIR(inode_u->bi_mode)) { ret = bch2_empty_dir_trans(trans, inum); if (ret) goto err; } - if (deleting_snapshot && !inode_u->bi_subvol) { + if (deleting_subvol && !inode_u->bi_subvol) { ret = -BCH_ERR_ENOENT_not_subvol; goto err; } - if (deleting_snapshot || inode_u->bi_subvol) { + if (inode_u->bi_subvol) { + /* Recursive subvolume destroy not allowed (yet?) */ + ret = bch2_subvol_has_children(trans, inode_u->bi_subvol); + if (ret) + goto err; + } + + if (deleting_subvol || inode_u->bi_subvol) { ret = bch2_subvolume_unlink(trans, inode_u->bi_subvol); if (ret) goto err; @@ -479,10 +486,10 @@ int bch2_rename_trans(struct btree_trans *trans, goto err; } - if (S_ISDIR(dst_inode_u->bi_mode) && - bch2_empty_dir_trans(trans, dst_inum)) { - ret = -ENOTEMPTY; - goto err; + if (S_ISDIR(dst_inode_u->bi_mode)) { + ret = bch2_empty_dir_trans(trans, dst_inum); + if (ret) + goto err; } } |