}
int bch2_snapshot_tree_invalid(const struct bch_fs *c, struct bkey_s_c k,
- unsigned flags, struct printbuf *err)
+ enum bkey_invalid_flags flags,
+ struct printbuf *err)
{
if (bkey_gt(k.k->p, POS(0, U32_MAX)) ||
bkey_lt(k.k->p, POS(0, 1))) {
int bch2_snapshot_tree_lookup(struct btree_trans *trans, u32 id,
struct bch_snapshot_tree *s)
{
- return bch2_bkey_get_val_typed(trans, BTREE_ID_snapshot_trees, POS(0, id),
- BTREE_ITER_WITH_UPDATES, snapshot_tree, s);
+ int ret = bch2_bkey_get_val_typed(trans, BTREE_ID_snapshot_trees, POS(0, id),
+ BTREE_ITER_WITH_UPDATES, snapshot_tree, s);
+
+ if (bch2_err_matches(ret, ENOENT))
+ ret = -BCH_ERR_ENOENT_snapshot_tree;
+ return ret;
}
static struct bkey_i_snapshot_tree *
{
struct bkey_s_c_snapshot s = bkey_s_c_to_snapshot(k);
- prt_printf(out, "is_subvol %llu deleted %llu parent %10u children %10u %10u subvol %u",
+ prt_printf(out, "is_subvol %llu deleted %llu parent %10u children %10u %10u subvol %u tree %u",
BCH_SNAPSHOT_SUBVOL(s.v),
BCH_SNAPSHOT_DELETED(s.v),
le32_to_cpu(s.v->parent),
le32_to_cpu(s.v->children[0]),
le32_to_cpu(s.v->children[1]),
- le32_to_cpu(s.v->subvol));
+ le32_to_cpu(s.v->subvol),
+ le32_to_cpu(s.v->tree));
}
int bch2_snapshot_invalid(const struct bch_fs *c, struct bkey_s_c k,
- unsigned flags, struct printbuf *err)
+ enum bkey_invalid_flags flags,
+ struct printbuf *err)
{
struct bkey_s_c_snapshot s;
u32 i, id;
return 0;
ret = snapshot_lookup(trans, id, &v);
- if (ret == -ENOENT)
+ if (bch2_err_matches(ret, ENOENT))
bch_err(trans->c, "snapshot node %u not found", id);
if (ret)
return ret;
struct btree_iter iter;
struct bkey_s_c k;
struct bkey_s_c_subvolume s;
+ bool found = false;
int ret;
for_each_btree_key_norestart(trans, iter, BTREE_ID_subvolumes, POS_MIN,
continue;
if (!BCH_SUBVOLUME_SNAP(s.v)) {
*subvol_id = s.k->p.offset;
- goto found;
+ found = true;
+ break;
}
}
- ret = ret ?: -ENOENT;
-found:
+
bch2_trans_iter_exit(trans, &iter);
- if (ret == -ENOENT) {
+ if (!ret && !found) {
struct bkey_i_subvolume *s;
*subvol_id = bch2_snapshot_tree_oldest_subvol(c, snapshot_root);
if (ret)
goto err;
- u = bch2_bkey_make_mut_typed(trans, iter, k, 0, snapshot_tree);
+ u = bch2_bkey_make_mut_typed(trans, iter, &k, 0, snapshot_tree);
ret = PTR_ERR_OR_ZERO(u);
if (ret)
goto err;
struct bch_snapshot_tree s_t;
int ret = bch2_snapshot_tree_lookup(trans, tree_id, &s_t);
+ if (bch2_err_matches(ret, ENOENT))
+ return 0;
if (ret)
return ret;
tree_id = le32_to_cpu(root.v->tree);
ret = bch2_snapshot_tree_lookup(trans, tree_id, &s_t);
- if (ret)
+ if (ret && !bch2_err_matches(ret, ENOENT))
return ret;
- if (le32_to_cpu(s_t.root_snapshot) != root_id) {
- u = bch2_bkey_make_mut_typed(trans, &root_iter, root.s_c, 0, snapshot);
+ if (ret || le32_to_cpu(s_t.root_snapshot) != root_id) {
+ u = bch2_bkey_make_mut_typed(trans, &root_iter, &root.s_c, 0, snapshot);
ret = PTR_ERR_OR_ZERO(u) ?:
snapshot_tree_create(trans, root_id,
bch2_snapshot_tree_oldest_subvol(c, root_id),
}
if (s->k->p.snapshot != root_id) {
- u = bch2_bkey_make_mut_typed(trans, iter, s->s_c, 0, snapshot);
+ u = bch2_bkey_make_mut_typed(trans, iter, &s->s_c, 0, snapshot);
ret = PTR_ERR_OR_ZERO(u);
if (ret)
goto err;
id = le32_to_cpu(s.v->parent);
if (id) {
ret = snapshot_lookup(trans, id, &v);
- if (ret == -ENOENT)
+ if (bch2_err_matches(ret, ENOENT))
bch_err(c, "snapshot with nonexistent parent:\n %s",
(bch2_bkey_val_to_text(&buf, c, s.s_c), buf.buf));
if (ret)
id = le32_to_cpu(s.v->children[i]);
ret = snapshot_lookup(trans, id, &v);
- if (ret == -ENOENT)
+ if (bch2_err_matches(ret, ENOENT))
bch_err(c, "snapshot node %llu has nonexistent child %u",
s.k->p.offset, id);
if (ret)
if (should_have_subvol) {
id = le32_to_cpu(s.v->subvol);
ret = bch2_subvolume_get(trans, id, 0, false, &subvol);
- if (ret == -ENOENT)
+ if (bch2_err_matches(ret, ENOENT))
bch_err(c, "snapshot points to nonexistent subvolume:\n %s",
(bch2_bkey_val_to_text(&buf, c, s.s_c), buf.buf));
if (ret)
BTREE_ITER_PREFETCH, k,
NULL, NULL, BTREE_INSERT_LAZY_RW|BTREE_INSERT_NOFAIL,
check_snapshot(&trans, &iter, k)));
-
if (ret)
- bch_err(c, "error %i checking snapshots", ret);
+ bch_err_fn(c, ret);
return ret;
}
snapid = le32_to_cpu(subvol.v->snapshot);
ret = snapshot_lookup(trans, snapid, &snapshot);
- if (ret == -ENOENT)
+ if (bch2_err_matches(ret, ENOENT))
bch_err(c, "subvolume %llu points to nonexistent snapshot %u",
k.k->p.offset, snapid);
if (ret)
if (!BCH_SUBVOLUME_SNAP(subvol.v)) {
u32 snapshot_root = bch2_snapshot_root(c, le32_to_cpu(subvol.v->snapshot));
+ u32 snapshot_tree = snapshot_t(c, snapshot_root)->tree;
struct bch_snapshot_tree st;
- ret = bch2_snapshot_tree_lookup(trans, snapshot_root, &st);
+ ret = bch2_snapshot_tree_lookup(trans, snapshot_tree, &st);
+
+ bch2_fs_inconsistent_on(bch2_err_matches(ret, ENOENT), c,
+ "%s: snapshot tree %u not found", __func__, snapshot_tree);
+
if (ret)
return ret;
"subvolume %llu is not set as snapshot but is not master subvolume",
k.k->p.offset)) {
struct bkey_i_subvolume *s =
- bch2_bkey_make_mut_typed(trans, iter, subvol.s_c, 0, subvolume);
+ bch2_bkey_make_mut_typed(trans, iter, &subvol.s_c, 0, subvolume);
ret = PTR_ERR_OR_ZERO(s);
if (ret)
return ret;
int bch2_fs_check_subvols(struct bch_fs *c)
{
- struct btree_trans trans;
struct btree_iter iter;
struct bkey_s_c k;
int ret;
- bch2_trans_init(&trans, c, 0, 0);
-
- ret = for_each_btree_key_commit(&trans, iter,
+ ret = bch2_trans_run(c,
+ for_each_btree_key_commit(&trans, iter,
BTREE_ID_subvolumes, POS_MIN, BTREE_ITER_PREFETCH, k,
NULL, NULL, BTREE_INSERT_LAZY_RW|BTREE_INSERT_NOFAIL,
- check_subvol(&trans, &iter, k));
-
- bch2_trans_exit(&trans);
-
+ check_subvol(&trans, &iter, k)));
+ if (ret)
+ bch_err_fn(c, ret);
return ret;
}
int bch2_fs_snapshots_start(struct bch_fs *c)
{
- struct btree_trans trans;
struct btree_iter iter;
struct bkey_s_c k;
int ret = 0;
- bch2_trans_init(&trans, c, 0, 0);
-
- for_each_btree_key2(&trans, iter, BTREE_ID_snapshots,
+ ret = bch2_trans_run(c,
+ for_each_btree_key2(&trans, iter, BTREE_ID_snapshots,
POS_MIN, 0, k,
- bch2_mark_snapshot(&trans, BTREE_ID_snapshots, 0, bkey_s_c_null, k, 0) ?:
- bch2_snapshot_set_equiv(&trans, k));
-
- bch2_trans_exit(&trans);
-
+ bch2_mark_snapshot(&trans, BTREE_ID_snapshots, 0, bkey_s_c_null, k, 0) ?:
+ bch2_snapshot_set_equiv(&trans, k)));
if (ret)
- bch_err(c, "error starting snapshots: %s", bch2_err_str(ret));
+ bch_err_fn(c, ret);
return ret;
}
0, snapshot);
ret = PTR_ERR_OR_ZERO(s);
if (unlikely(ret)) {
- bch2_fs_inconsistent_on(ret == -ENOENT, trans->c, "missing snapshot %u", id);
+ bch2_fs_inconsistent_on(bch2_err_matches(ret, ENOENT),
+ trans->c, "missing snapshot %u", id);
return ret;
}
s = bch2_bkey_get_iter_typed(trans, &iter, BTREE_ID_snapshots, POS(0, id),
BTREE_ITER_INTENT, snapshot);
ret = bkey_err(s);
- bch2_fs_inconsistent_on(ret == -ENOENT, c, "missing snapshot %u", id);
+ bch2_fs_inconsistent_on(bch2_err_matches(ret, ENOENT), c,
+ "missing snapshot %u", id);
if (ret)
goto err;
0, snapshot);
ret = PTR_ERR_OR_ZERO(parent);
if (unlikely(ret)) {
- bch2_fs_inconsistent_on(ret == -ENOENT, c, "missing snapshot %u", parent_id);
+ bch2_fs_inconsistent_on(bch2_err_matches(ret, ENOENT), c,
+ "missing snapshot %u", parent_id);
goto err;
}
goto err;
if (s.v->children[0]) {
- s_t->v.root_snapshot = cpu_to_le32(s.v->children[0]);
+ s_t->v.root_snapshot = s.v->children[0];
} else {
s_t->k.type = KEY_TYPE_deleted;
set_bkey_val_u64s(&s_t->k, 0);
0, snapshot);
ret = PTR_ERR_OR_ZERO(n_parent);
if (unlikely(ret)) {
- if (ret == -ENOENT)
+ if (bch2_err_matches(ret, ENOENT))
bch_err(trans->c, "snapshot %u not found", parent);
return ret;
}
err:
darray_exit(&deleted);
bch2_trans_exit(&trans);
+ if (ret)
+ bch_err_fn(c, ret);
return ret;
}
{
int ret = bch2_bkey_get_val_typed(trans, BTREE_ID_subvolumes, POS(0, subvol),
iter_flags, subvolume, s);
- bch2_fs_inconsistent_on(ret == -ENOENT && inconsistent_if_not_found,
+ bch2_fs_inconsistent_on(bch2_err_matches(ret, ENOENT) &&
+ inconsistent_if_not_found,
trans->c, "missing subvolume %u", subvol);
return ret;
}
k = bch2_bkey_get_iter(trans, &iter, BTREE_ID_subvolumes, POS(0, subvol),
BTREE_ITER_CACHED|
BTREE_ITER_WITH_UPDATES);
- ret = bkey_err(k) ?: k.k->type == KEY_TYPE_subvolume ? 0 : -ENOENT;
+ ret = bkey_err(k) ?: k.k->type == KEY_TYPE_subvolume ? 0 : -BCH_ERR_ENOENT_subvolume;
if (likely(!ret))
*snapid = le32_to_cpu(bkey_s_c_to_subvolume(k).v->snapshot);
- else if (ret == -ENOENT)
+ else if (bch2_err_matches(ret, ENOENT))
bch2_fs_inconsistent(trans->c, "missing subvolume %u", subvol);
bch2_trans_iter_exit(trans, &iter);
return ret;
le32_to_cpu(bkey_s_c_to_subvolume(k).v->parent) != old_parent)
return 0;
- s = bch2_bkey_make_mut_typed(trans, iter, k, 0, subvolume);
+ s = bch2_bkey_make_mut_typed(trans, iter, &k, 0, subvolume);
ret = PTR_ERR_OR_ZERO(s);
if (ret)
return ret;
BTREE_ITER_CACHED|BTREE_ITER_INTENT,
subvolume);
ret = bkey_err(subvol);
- bch2_fs_inconsistent_on(ret == -ENOENT, trans->c, "missing subvolume %u", subvolid);
+ bch2_fs_inconsistent_on(bch2_err_matches(ret, ENOENT), trans->c,
+ "missing subvolume %u", subvolid);
if (ret)
return ret;
__bch2_subvolume_delete(trans, subvolid));
}
-void bch2_subvolume_wait_for_pagecache_and_delete(struct work_struct *work)
+static void bch2_subvolume_wait_for_pagecache_and_delete(struct work_struct *work)
{
struct bch_fs *c = container_of(work, struct bch_fs,
snapshot_wait_for_pagecache_and_delete_work);
u32 subvol;
};
-int bch2_subvolume_wait_for_pagecache_and_delete_hook(struct btree_trans *trans,
+static int bch2_subvolume_wait_for_pagecache_and_delete_hook(struct btree_trans *trans,
struct btree_trans_commit_hook *_h)
{
struct subvolume_unlink_hook *h = container_of(_h, struct subvolume_unlink_hook, h);
BTREE_ITER_CACHED, subvolume);
ret = PTR_ERR_OR_ZERO(n);
if (unlikely(ret)) {
- bch2_fs_inconsistent_on(ret == -ENOENT, trans->c, "missing subvolume %u", subvolid);
+ bch2_fs_inconsistent_on(bch2_err_matches(ret, ENOENT), trans->c,
+ "missing subvolume %u", subvolid);
return ret;
}
BTREE_ITER_CACHED, subvolume);
ret = PTR_ERR_OR_ZERO(src_subvol);
if (unlikely(ret)) {
- bch2_fs_inconsistent_on(ret == -ENOENT, c,
+ bch2_fs_inconsistent_on(bch2_err_matches(ret, ENOENT), c,
"subvolume %u not found", src_subvolid);
goto err;
}