diff options
Diffstat (limited to 'fs/bcachefs/fs.c')
| -rw-r--r-- | fs/bcachefs/fs.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/fs/bcachefs/fs.c b/fs/bcachefs/fs.c index 5bfc26d58270..23cae92d313d 100644 --- a/fs/bcachefs/fs.c +++ b/fs/bcachefs/fs.c @@ -174,11 +174,30 @@ static const struct rhashtable_params bch2_vfs_inodes_params = { .automatic_shrinking = true, }; -struct bch_inode_info *__bch2_inode_hash_find(struct bch_fs *c, subvol_inum inum) +static struct bch_inode_info *__bch2_inode_hash_find(struct bch_fs *c, subvol_inum inum) { return rhashtable_lookup_fast(&c->vfs_inodes_table, &inum, bch2_vfs_inodes_params); } +bool bch2_inode_is_open(struct bch_fs *c, struct bpos p) +{ + if (!test_bit(BCH_FS_started, &c->flags)) + return false; + + subvol_inum inum = { + .subvol = snapshot_t(c, p.snapshot)->subvol, + .inum = p.offset, + }; + + /* snapshot tree interior node, can't safely delete while online (yet) */ + if (!inum.subvol) { + bch_warn_ratelimited(c, "%s(): snapshot %u has no subvol, unlinked but can't safely delete", __func__, p.snapshot); + return true; + } + + return __bch2_inode_hash_find(c, inum) != NULL; +} + static void __wait_on_freeing_inode(struct bch_fs *c, struct bch_inode_info *inode, subvol_inum inum) |