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Diffstat (limited to 'fs/bcachefs/dirent.c')
-rw-r--r--fs/bcachefs/dirent.c51
1 files changed, 37 insertions, 14 deletions
diff --git a/fs/bcachefs/dirent.c b/fs/bcachefs/dirent.c
index 2bfff0da70..4ae1e9f002 100644
--- a/fs/bcachefs/dirent.c
+++ b/fs/bcachefs/dirent.c
@@ -65,7 +65,7 @@ static bool dirent_cmp_key(struct bkey_s_c _l, const void *_r)
const struct qstr l_name = bch2_dirent_get_name(l);
const struct qstr *r_name = _r;
- return l_name.len - r_name->len ?: memcmp(l_name.name, r_name->name, l_name.len);
+ return !qstr_eq(l_name, *r_name);
}
static bool dirent_cmp_bkey(struct bkey_s_c _l, struct bkey_s_c _r)
@@ -75,7 +75,7 @@ static bool dirent_cmp_bkey(struct bkey_s_c _l, struct bkey_s_c _r)
const struct qstr l_name = bch2_dirent_get_name(l);
const struct qstr r_name = bch2_dirent_get_name(r);
- return l_name.len - r_name.len ?: memcmp(l_name.name, r_name.name, l_name.len);
+ return !qstr_eq(l_name, r_name);
}
static bool dirent_is_visible(subvol_inum inum, struct bkey_s_c k)
@@ -198,10 +198,39 @@ static struct bkey_i_dirent *dirent_create_key(struct btree_trans *trans,
return dirent;
}
+int bch2_dirent_create_snapshot(struct btree_trans *trans,
+ u64 dir, u32 snapshot,
+ const struct bch_hash_info *hash_info,
+ u8 type, const struct qstr *name, u64 dst_inum,
+ u64 *dir_offset,
+ bch_str_hash_flags_t str_hash_flags)
+{
+ subvol_inum zero_inum = { 0 };
+ struct bkey_i_dirent *dirent;
+ int ret;
+
+ dirent = dirent_create_key(trans, zero_inum, type, name, dst_inum);
+ ret = PTR_ERR_OR_ZERO(dirent);
+ if (ret)
+ return ret;
+
+ dirent->k.p.inode = dir;
+ dirent->k.p.snapshot = snapshot;
+
+ ret = bch2_hash_set_snapshot(trans, bch2_dirent_hash_desc, hash_info,
+ zero_inum, snapshot,
+ &dirent->k_i, str_hash_flags,
+ BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE);
+ *dir_offset = dirent->k.p.offset;
+
+ return ret;
+}
+
int bch2_dirent_create(struct btree_trans *trans, subvol_inum dir,
const struct bch_hash_info *hash_info,
u8 type, const struct qstr *name, u64 dst_inum,
- u64 *dir_offset, int flags)
+ u64 *dir_offset,
+ bch_str_hash_flags_t str_hash_flags)
{
struct bkey_i_dirent *dirent;
int ret;
@@ -212,7 +241,7 @@ int bch2_dirent_create(struct btree_trans *trans, subvol_inum dir,
return ret;
ret = bch2_hash_set(trans, bch2_dirent_hash_desc, hash_info,
- dir, &dirent->k_i, flags);
+ dir, &dirent->k_i, str_hash_flags);
*dir_offset = dirent->k.p.offset;
return ret;
@@ -470,17 +499,11 @@ u64 bch2_dirent_lookup(struct bch_fs *c, subvol_inum dir,
const struct qstr *name, subvol_inum *inum)
{
struct btree_trans *trans = bch2_trans_get(c);
- struct btree_iter iter;
- int ret;
-retry:
- bch2_trans_begin(trans);
+ struct btree_iter iter = { NULL };
- ret = __bch2_dirent_lookup_trans(trans, &iter, dir, hash_info,
- name, inum, 0);
- if (bch2_err_matches(ret, BCH_ERR_transaction_restart))
- goto retry;
- if (!ret)
- bch2_trans_iter_exit(trans, &iter);
+ int ret = lockrestart_do(trans,
+ __bch2_dirent_lookup_trans(trans, &iter, dir, hash_info, name, inum, 0));
+ bch2_trans_iter_exit(trans, &iter);
bch2_trans_put(trans);
return ret;
}