return bytes;
}
-void bch2_inode_pack(struct bch_fs *c,
- struct bkey_inode_buf *packed,
- const struct bch_inode_unpacked *inode)
+static inline void bch2_inode_pack_inlined(struct bkey_inode_buf *packed,
+ const struct bch_inode_unpacked *inode)
{
- struct bkey_i_inode_v2 *k = &packed->inode;
+ struct bkey_i_inode_v3 *k = &packed->inode;
u8 *out = k->v.fields;
u8 *end = (void *) &packed[1];
u8 *last_nonzero_field = out;
unsigned bytes;
int ret;
- bkey_inode_v2_init(&packed->inode.k_i);
+ bkey_inode_v3_init(&packed->inode.k_i);
packed->inode.k.p.offset = inode->bi_inum;
packed->inode.v.bi_journal_seq = cpu_to_le64(inode->bi_journal_seq);
packed->inode.v.bi_hash_seed = inode->bi_hash_seed;
packed->inode.v.bi_flags = cpu_to_le64(inode->bi_flags);
- packed->inode.v.bi_flags = cpu_to_le64(inode->bi_flags);
- packed->inode.v.bi_mode = cpu_to_le16(inode->bi_mode);
+ packed->inode.v.bi_sectors = cpu_to_le64(inode->bi_sectors);
+ packed->inode.v.bi_size = cpu_to_le64(inode->bi_size);
+ packed->inode.v.bi_version = cpu_to_le64(inode->bi_version);
+ SET_INODEv3_MODE(&packed->inode.v, inode->bi_mode);
+ SET_INODEv3_FIELDS_START(&packed->inode.v, INODEv3_FIELDS_START_CUR);
+
#define x(_name, _bits) \
nr_fields++; \
*out++ = 0; \
}
- BCH_INODE_FIELDS()
+ BCH_INODE_FIELDS_v3()
#undef x
BUG_ON(out > end);
set_bkey_val_bytes(&packed->inode.k, bytes);
memset_u64s_tail(&packed->inode.v, 0, bytes);
- SET_INODEv2_NR_FIELDS(&k->v, nr_fields);
+ SET_INODEv3_NR_FIELDS(&k->v, nr_fields);
if (IS_ENABLED(CONFIG_BCACHEFS_DEBUG)) {
struct bch_inode_unpacked unpacked;
BUG_ON(ret);
BUG_ON(unpacked.bi_inum != inode->bi_inum);
BUG_ON(unpacked.bi_hash_seed != inode->bi_hash_seed);
+ BUG_ON(unpacked.bi_sectors != inode->bi_sectors);
+ BUG_ON(unpacked.bi_size != inode->bi_size);
+ BUG_ON(unpacked.bi_version != inode->bi_version);
BUG_ON(unpacked.bi_mode != inode->bi_mode);
#define x(_name, _bits) if (unpacked._name != inode->_name) \
panic("unpacked %llu should be %llu", \
(u64) unpacked._name, (u64) inode->_name);
- BCH_INODE_FIELDS()
+ BCH_INODE_FIELDS_v3()
#undef x
}
}
+void bch2_inode_pack(struct bkey_inode_buf *packed,
+ const struct bch_inode_unpacked *inode)
+{
+ bch2_inode_pack_inlined(packed, inode);
+}
+
static noinline int bch2_inode_unpack_v1(struct bkey_s_c_inode inode,
struct bch_inode_unpacked *unpacked)
{
unpacked->_name = field[1]; \
in += ret;
- BCH_INODE_FIELDS()
+ BCH_INODE_FIELDS_v2()
#undef x
/* XXX: signal if there were more fields than expected? */
return -1; \
fieldnr++;
- BCH_INODE_FIELDS()
+ BCH_INODE_FIELDS_v2()
#undef x
/* XXX: signal if there were more fields than expected? */
return 0;
}
-int bch2_inode_unpack(struct bkey_s_c k,
- struct bch_inode_unpacked *unpacked)
+static int bch2_inode_unpack_v3(struct bkey_s_c k,
+ struct bch_inode_unpacked *unpacked)
+{
+ struct bkey_s_c_inode_v3 inode = bkey_s_c_to_inode_v3(k);
+ const u8 *in = inode.v->fields;
+ const u8 *end = bkey_val_end(inode);
+ unsigned nr_fields = INODEv3_NR_FIELDS(inode.v);
+ unsigned fieldnr = 0;
+ int ret;
+ u64 v[2];
+
+ unpacked->bi_inum = inode.k->p.offset;
+ unpacked->bi_journal_seq= le64_to_cpu(inode.v->bi_journal_seq);
+ unpacked->bi_hash_seed = inode.v->bi_hash_seed;
+ unpacked->bi_flags = le64_to_cpu(inode.v->bi_flags);
+ unpacked->bi_sectors = le64_to_cpu(inode.v->bi_sectors);
+ unpacked->bi_size = le64_to_cpu(inode.v->bi_size);
+ unpacked->bi_version = le64_to_cpu(inode.v->bi_version);
+ unpacked->bi_mode = INODEv3_MODE(inode.v);
+
+#define x(_name, _bits) \
+ if (fieldnr < nr_fields) { \
+ ret = bch2_varint_decode_fast(in, end, &v[0]); \
+ if (ret < 0) \
+ return ret; \
+ in += ret; \
+ \
+ if (_bits > 64) { \
+ ret = bch2_varint_decode_fast(in, end, &v[1]); \
+ if (ret < 0) \
+ return ret; \
+ in += ret; \
+ } else { \
+ v[1] = 0; \
+ } \
+ } else { \
+ v[0] = v[1] = 0; \
+ } \
+ \
+ unpacked->_name = v[0]; \
+ if (v[1] || v[0] != unpacked->_name) \
+ return -1; \
+ fieldnr++;
+
+ BCH_INODE_FIELDS_v3()
+#undef x
+
+ /* XXX: signal if there were more fields than expected? */
+ return 0;
+}
+
+static noinline int bch2_inode_unpack_slowpath(struct bkey_s_c k,
+ struct bch_inode_unpacked *unpacked)
{
+ memset(unpacked, 0, sizeof(*unpacked));
+
switch (k.k->type) {
case KEY_TYPE_inode: {
struct bkey_s_c_inode inode = bkey_s_c_to_inode(k);
}
}
+int bch2_inode_unpack(struct bkey_s_c k,
+ struct bch_inode_unpacked *unpacked)
+{
+ if (likely(k.k->type == KEY_TYPE_inode_v3))
+ return bch2_inode_unpack_v3(k, unpacked);
+ return bch2_inode_unpack_slowpath(k, unpacked);
+}
+
int bch2_inode_peek(struct btree_trans *trans,
struct btree_iter *iter,
struct bch_inode_unpacked *inode,
if (ret)
return ret;
- bch2_trans_iter_init(trans, iter, BTREE_ID_inodes,
- SPOS(0, inum.inum, snapshot),
- flags|BTREE_ITER_CACHED);
- k = bch2_btree_iter_peek_slot(iter);
+ k = bch2_bkey_get_iter(trans, iter, BTREE_ID_inodes,
+ SPOS(0, inum.inum, snapshot),
+ flags|BTREE_ITER_CACHED);
ret = bkey_err(k);
if (ret)
- goto err;
+ return ret;
- ret = bkey_is_inode(k.k) ? 0 : -ENOENT;
+ ret = bkey_is_inode(k.k) ? 0 : -BCH_ERR_ENOENT_inode;
if (ret)
goto err;
if (IS_ERR(inode_p))
return PTR_ERR(inode_p);
- bch2_inode_pack(trans->c, inode_p, inode);
+ bch2_inode_pack_inlined(inode_p, inode);
inode_p->inode.k.p.snapshot = iter->snapshot;
return bch2_trans_update(trans, iter, &inode_p->inode.k_i, 0);
}
+struct bkey_i *bch2_inode_to_v3(struct btree_trans *trans, struct bkey_i *k)
+{
+ struct bch_inode_unpacked u;
+ struct bkey_inode_buf *inode_p;
+ int ret;
+
+ if (!bkey_is_inode(&k->k))
+ return ERR_PTR(-ENOENT);
+
+ inode_p = bch2_trans_kmalloc(trans, sizeof(*inode_p));
+ if (IS_ERR(inode_p))
+ return ERR_CAST(inode_p);
+
+ ret = bch2_inode_unpack(bkey_i_to_s_c(k), &u);
+ if (ret)
+ return ERR_PTR(ret);
+
+ bch2_inode_pack(inode_p, &u);
+ return &inode_p->inode.k_i;
+}
+
static int __bch2_inode_invalid(struct bkey_s_c k, struct printbuf *err)
{
struct bch_inode_unpacked unpacked;
if (k.k->p.inode) {
prt_printf(err, "nonzero k.p.inode");
- return -EINVAL;
+ return -BCH_ERR_invalid_bkey;
}
if (k.k->p.offset < BLOCKDEV_INODE_MAX) {
prt_printf(err, "fs inode in blockdev range");
- return -EINVAL;
+ return -BCH_ERR_invalid_bkey;
}
- if (bch2_inode_unpack(k, &unpacked)){
+ if (bch2_inode_unpack(k, &unpacked)) {
prt_printf(err, "invalid variable length fields");
- return -EINVAL;
+ return -BCH_ERR_invalid_bkey;
}
if (unpacked.bi_data_checksum >= BCH_CSUM_OPT_NR + 1) {
prt_printf(err, "invalid data checksum type (%u >= %u",
unpacked.bi_data_checksum, BCH_CSUM_OPT_NR + 1);
- return -EINVAL;
+ return -BCH_ERR_invalid_bkey;
}
if (unpacked.bi_compression >= BCH_COMPRESSION_OPT_NR + 1) {
prt_printf(err, "invalid data checksum type (%u >= %u)",
unpacked.bi_compression, BCH_COMPRESSION_OPT_NR + 1);
- return -EINVAL;
+ return -BCH_ERR_invalid_bkey;
}
if ((unpacked.bi_flags & BCH_INODE_UNLINKED) &&
unpacked.bi_nlink != 0) {
prt_printf(err, "flagged as unlinked but bi_nlink != 0");
- return -EINVAL;
+ return -BCH_ERR_invalid_bkey;
}
if (unpacked.bi_subvol && !S_ISDIR(unpacked.bi_mode)) {
prt_printf(err, "subvolume root but not a directory");
- return -EINVAL;
+ return -BCH_ERR_invalid_bkey;
}
return 0;
}
int bch2_inode_invalid(const struct bch_fs *c, struct bkey_s_c k,
- int rw, struct printbuf *err)
+ enum bkey_invalid_flags flags,
+ struct printbuf *err)
{
struct bkey_s_c_inode inode = bkey_s_c_to_inode(k);
- if (bkey_val_bytes(k.k) < sizeof(*inode.v)) {
- prt_printf(err, "incorrect value size (%zu < %zu)",
- bkey_val_bytes(k.k), sizeof(*inode.v));
- return -EINVAL;
- }
-
if (INODE_STR_HASH(inode.v) >= BCH_STR_HASH_NR) {
prt_printf(err, "invalid str hash type (%llu >= %u)",
INODE_STR_HASH(inode.v), BCH_STR_HASH_NR);
- return -EINVAL;
+ return -BCH_ERR_invalid_bkey;
}
return __bch2_inode_invalid(k, err);
}
int bch2_inode_v2_invalid(const struct bch_fs *c, struct bkey_s_c k,
- int rw, struct printbuf *err)
+ enum bkey_invalid_flags flags,
+ struct printbuf *err)
{
struct bkey_s_c_inode_v2 inode = bkey_s_c_to_inode_v2(k);
- if (bkey_val_bytes(k.k) < sizeof(*inode.v)) {
- prt_printf(err, "incorrect value size (%zu < %zu)",
- bkey_val_bytes(k.k), sizeof(*inode.v));
- return -EINVAL;
- }
-
if (INODEv2_STR_HASH(inode.v) >= BCH_STR_HASH_NR) {
prt_printf(err, "invalid str hash type (%llu >= %u)",
INODEv2_STR_HASH(inode.v), BCH_STR_HASH_NR);
- return -EINVAL;
+ return -BCH_ERR_invalid_bkey;
+ }
+
+ return __bch2_inode_invalid(k, err);
+}
+
+int bch2_inode_v3_invalid(const struct bch_fs *c, struct bkey_s_c k,
+ enum bkey_invalid_flags flags,
+ struct printbuf *err)
+{
+ struct bkey_s_c_inode_v3 inode = bkey_s_c_to_inode_v3(k);
+
+ if (INODEv3_FIELDS_START(inode.v) < INODEv3_FIELDS_START_INITIAL ||
+ INODEv3_FIELDS_START(inode.v) > bkey_val_u64s(inode.k)) {
+ prt_printf(err, "invalid fields_start (got %llu, min %u max %zu)",
+ INODEv3_FIELDS_START(inode.v),
+ INODEv3_FIELDS_START_INITIAL,
+ bkey_val_u64s(inode.k));
+ return -BCH_ERR_invalid_bkey;
+ }
+
+ if (INODEv3_STR_HASH(inode.v) >= BCH_STR_HASH_NR) {
+ prt_printf(err, "invalid str hash type (%llu >= %u)",
+ INODEv3_STR_HASH(inode.v), BCH_STR_HASH_NR);
+ return -BCH_ERR_invalid_bkey;
}
return __bch2_inode_invalid(k, err);
}
-static void __bch2_inode_unpacked_to_text(struct printbuf *out, struct bch_inode_unpacked *inode)
+static void __bch2_inode_unpacked_to_text(struct printbuf *out,
+ struct bch_inode_unpacked *inode)
{
- prt_printf(out, "mode %o flags %x journal_seq %llu",
+ prt_printf(out, "mode %o flags %x journal_seq %llu bi_size %llu bi_sectors %llu bi_version %llu",
inode->bi_mode, inode->bi_flags,
- inode->bi_journal_seq);
+ inode->bi_journal_seq,
+ inode->bi_size,
+ inode->bi_sectors,
+ inode->bi_version);
#define x(_name, _bits) \
prt_printf(out, " "#_name " %llu", (u64) inode->_name);
- BCH_INODE_FIELDS()
+ BCH_INODE_FIELDS_v3()
#undef x
}
__bch2_inode_unpacked_to_text(out, inode);
}
-void bch2_inode_to_text(struct printbuf *out, struct bch_fs *c,
- struct bkey_s_c k)
+void bch2_inode_to_text(struct printbuf *out, struct bch_fs *c, struct bkey_s_c k)
{
struct bch_inode_unpacked inode;
__bch2_inode_unpacked_to_text(out, &inode);
}
+int bch2_trans_mark_inode(struct btree_trans *trans,
+ enum btree_id btree_id, unsigned level,
+ struct bkey_s_c old,
+ struct bkey_i *new,
+ unsigned flags)
+{
+ int nr = bkey_is_inode(&new->k) - bkey_is_inode(old.k);
+
+ if (nr) {
+ int ret = bch2_replicas_deltas_realloc(trans, 0);
+ struct replicas_delta_list *d = trans->fs_usage_deltas;
+
+ if (ret)
+ return ret;
+
+ d->nr_inodes += nr;
+ }
+
+ return 0;
+}
+
+int bch2_mark_inode(struct btree_trans *trans,
+ enum btree_id btree_id, unsigned level,
+ struct bkey_s_c old, struct bkey_s_c new,
+ unsigned flags)
+{
+ struct bch_fs *c = trans->c;
+ struct bch_fs_usage *fs_usage;
+ u64 journal_seq = trans->journal_res.seq;
+
+ if (flags & BTREE_TRIGGER_INSERT) {
+ struct bch_inode_v3 *v = (struct bch_inode_v3 *) new.v;
+
+ BUG_ON(!journal_seq);
+ BUG_ON(new.k->type != KEY_TYPE_inode_v3);
+
+ v->bi_journal_seq = cpu_to_le64(journal_seq);
+ }
+
+ if (flags & BTREE_TRIGGER_GC) {
+ percpu_down_read(&c->mark_lock);
+ preempt_disable();
+
+ fs_usage = fs_usage_ptr(c, journal_seq, flags & BTREE_TRIGGER_GC);
+ fs_usage->nr_inodes += bkey_is_inode(new.k);
+ fs_usage->nr_inodes -= bkey_is_inode(old.k);
+
+ preempt_enable();
+ percpu_up_read(&c->mark_lock);
+ }
+ return 0;
+}
+
int bch2_inode_generation_invalid(const struct bch_fs *c, struct bkey_s_c k,
- int rw, struct printbuf *err)
+ enum bkey_invalid_flags flags,
+ struct printbuf *err)
{
if (k.k->p.inode) {
prt_printf(err, "nonzero k.p.inode");
- return -EINVAL;
- }
-
- if (bkey_val_bytes(k.k) != sizeof(struct bch_inode_generation)) {
- prt_printf(err, "incorrect value size (%zu != %zu)",
- bkey_val_bytes(k.k), sizeof(struct bch_inode_generation));
- return -EINVAL;
+ return -BCH_ERR_invalid_bkey;
}
return 0;
again:
while ((k = bch2_btree_iter_peek(iter)).k &&
!(ret = bkey_err(k)) &&
- bkey_cmp(k.k->p, POS(0, max)) < 0) {
- while (pos < iter->pos.offset) {
- if (!bch2_btree_key_cache_find(c, BTREE_ID_inodes, POS(0, pos)))
- goto found_slot;
-
- pos++;
- }
-
- if (k.k->p.snapshot == snapshot &&
- !bkey_is_inode(k.k) &&
- !bch2_btree_key_cache_find(c, BTREE_ID_inodes, SPOS(0, pos, snapshot))) {
- bch2_btree_iter_advance(iter);
- continue;
- }
+ bkey_lt(k.k->p, POS(0, max))) {
+ if (pos < iter->pos.offset)
+ goto found_slot;
/*
* We don't need to iterate over keys in every snapshot once
bch2_btree_iter_set_pos(iter, POS(0, pos));
}
- while (!ret && pos < max) {
- if (!bch2_btree_key_cache_find(c, BTREE_ID_inodes, POS(0, pos)))
- goto found_slot;
-
- pos++;
- }
+ if (!ret && pos < max)
+ goto found_slot;
if (!ret && start == min)
- ret = -ENOSPC;
+ ret = -BCH_ERR_ENOSPC_inode_create;
if (ret) {
bch2_trans_iter_exit(trans, iter);
return ret;
}
- /* We may have raced while the iterator wasn't pointing at pos: */
- if (bkey_is_inode(k.k) ||
- bch2_btree_key_cache_find(c, BTREE_ID_inodes, k.k->p))
- goto again;
-
*hint = k.k->p.offset;
inode_u->bi_inum = k.k->p.offset;
inode_u->bi_generation = bkey_generation(k);
int ret = 0;
/*
- * We're never going to be deleting extents, no need to use an extent
- * iterator:
+ * We're never going to be deleting partial extents, no need to use an
+ * extent iterator:
*/
bch2_trans_iter_init(trans, &iter, id, POS(inum.inum, 0),
- BTREE_ITER_NOT_EXTENTS|
- BTREE_ITER_INTENT);
+ BTREE_ITER_INTENT|BTREE_ITER_NOT_EXTENTS);
while (1) {
bch2_trans_begin(trans);
bch2_trans_commit(trans, NULL, NULL,
BTREE_INSERT_NOFAIL);
err:
- if (ret && ret != -EINTR)
+ if (ret && !bch2_err_matches(ret, BCH_ERR_transaction_restart))
break;
}
if (ret)
goto err;
- bch2_trans_iter_init(&trans, &iter, BTREE_ID_inodes,
- SPOS(0, inum.inum, snapshot),
- BTREE_ITER_INTENT|BTREE_ITER_CACHED);
- k = bch2_btree_iter_peek_slot(&iter);
-
+ k = bch2_bkey_get_iter(&trans, &iter, BTREE_ID_inodes,
+ SPOS(0, inum.inum, snapshot),
+ BTREE_ITER_INTENT|BTREE_ITER_CACHED);
ret = bkey_err(k);
if (ret)
goto err;
if (!bkey_is_inode(k.k)) {
bch2_fs_inconsistent(trans.c,
- "inode %llu not found when deleting",
- inum.inum);
+ "inode %llu:%u not found when deleting",
+ inum.inum, snapshot);
ret = -EIO;
goto err;
}
bch2_inode_unpack(k, &inode_u);
- /* Subvolume root? */
- BUG_ON(inode_u.bi_subvol);
-
bkey_inode_generation_init(&delete.k_i);
delete.k.p = iter.pos;
delete.v.bi_generation = cpu_to_le32(inode_u.bi_generation + 1);
BTREE_INSERT_NOFAIL);
err:
bch2_trans_iter_exit(&trans, &iter);
- if (ret == -EINTR)
+ if (bch2_err_matches(ret, BCH_ERR_transaction_restart))
goto retry;
bch2_trans_exit(&trans);
return bch2_trans_do(c, NULL, NULL, 0,
bch2_inode_find_by_inum_trans(&trans, inum, inode));
}
+
+int bch2_inode_nlink_inc(struct bch_inode_unpacked *bi)
+{
+ if (bi->bi_flags & BCH_INODE_UNLINKED)
+ bi->bi_flags &= ~BCH_INODE_UNLINKED;
+ else {
+ if (bi->bi_nlink == U32_MAX)
+ return -EINVAL;
+
+ bi->bi_nlink++;
+ }
+
+ return 0;
+}
+
+void bch2_inode_nlink_dec(struct btree_trans *trans, struct bch_inode_unpacked *bi)
+{
+ if (bi->bi_nlink && (bi->bi_flags & BCH_INODE_UNLINKED)) {
+ bch2_trans_inconsistent(trans, "inode %llu unlinked but link count nonzero",
+ bi->bi_inum);
+ return;
+ }
+
+ if (bi->bi_flags & BCH_INODE_UNLINKED) {
+ bch2_trans_inconsistent(trans, "inode %llu link count underflow", bi->bi_inum);
+ return;
+ }
+
+ if (bi->bi_nlink)
+ bi->bi_nlink--;
+ else
+ bi->bi_flags |= BCH_INODE_UNLINKED;
+}
+
+struct bch_opts bch2_inode_opts_to_opts(struct bch_inode_unpacked *inode)
+{
+ struct bch_opts ret = { 0 };
+#define x(_name, _bits) \
+ if (inode->bi_##_name) \
+ opt_set(ret, _name, inode->bi_##_name - 1);
+ BCH_INODE_OPTS()
+#undef x
+ return ret;
+}
+
+void bch2_inode_opts_get(struct bch_io_opts *opts, struct bch_fs *c,
+ struct bch_inode_unpacked *inode)
+{
+#define x(_name, _bits) opts->_name = inode_opt_get(c, inode, _name);
+ BCH_INODE_OPTS()
+#undef x
+
+ if (opts->nocow)
+ opts->compression = opts->background_compression = opts->data_checksum = opts->erasure_code = 0;
+}
projects / bcachefs-tools-debian / blobdiff