(bkey_extent_is_allocation(&new->k) -
bkey_extent_is_allocation(old.k));
- *disk_sectors_delta += sectors *
- (int) (bch2_bkey_nr_ptrs_allocated(bkey_i_to_s_c(new)) -
- bch2_bkey_nr_ptrs_fully_allocated(old));
+ *disk_sectors_delta += sectors * bch2_bkey_nr_ptrs_allocated(bkey_i_to_s_c(new));
+ *disk_sectors_delta -= new->k.p.snapshot == old.k->p.snapshot
+ ? sectors * bch2_bkey_nr_ptrs_fully_allocated(old)
+ : 0;
if (!*should_check_enospc &&
(new_replicas > bch2_bkey_replicas(c, old) ||
if (i_sectors_delta || new_i_size) {
bch2_inode_pack(trans->c, &inode_p, &inode_u);
+
+ inode_p.inode.k.p.snapshot = iter->snapshot;
+
bch2_trans_update(trans, inode_iter,
&inode_p.inode.k_i, 0);
}
int ret = 0;
bch2_trans_init(&trans, c, BTREE_ITER_MAX, 1024);
- iter = bch2_trans_get_iter(&trans, BTREE_ID_EXTENTS,
+ iter = bch2_trans_get_iter(&trans, BTREE_ID_extents,
POS(inum, start),
BTREE_ITER_INTENT);
ret = bch2_fpunch_at(&trans, iter, POS(inum, end),
journal_seq, i_sectors_delta);
+
+ bch2_trans_iter_put(&trans, iter);
bch2_trans_exit(&trans);
if (ret == -EINTR)
bch2_bkey_buf_init(&sk);
bch2_trans_init(&trans, c, BTREE_ITER_MAX, 1024);
- iter = bch2_trans_get_iter(&trans, BTREE_ID_EXTENTS,
+ iter = bch2_trans_get_iter(&trans, BTREE_ID_extents,
bkey_start_pos(&k->k),
BTREE_ITER_SLOTS|BTREE_ITER_INTENT);
k = bch2_keylist_front(keys);
+ k->k.p.snapshot = iter->snapshot;
+
bch2_bkey_buf_realloc(&sk, c, k->k.u64s);
bkey_copy(sk.k, k);
bch2_cut_front(iter->pos, sk.k);
bch2_keylist_pop_front(keys);
} while (!bch2_keylist_empty(keys));
+ bch2_trans_iter_put(&trans, iter);
bch2_trans_exit(&trans);
bch2_bkey_buf_exit(&sk, c);
promote = __promote_alloc(c,
k.k->type == KEY_TYPE_reflink_v
- ? BTREE_ID_REFLINK
- : BTREE_ID_EXTENTS,
+ ? BTREE_ID_reflink
+ : BTREE_ID_extents,
k, pos, pick, opts, sectors, rbio);
if (!promote)
return NULL;
bch2_bkey_buf_init(&sk);
bch2_trans_init(&trans, c, 0, 0);
- iter = bch2_trans_get_iter(&trans, BTREE_ID_EXTENTS,
- rbio->pos, BTREE_ITER_SLOTS);
+ iter = bch2_trans_get_iter(&trans, rbio->data_btree,
+ rbio->read_pos, BTREE_ITER_SLOTS);
retry:
rbio->bio.bi_status = 0;
if (!bch2_bkey_matches_ptr(c, k,
rbio->pick.ptr,
- rbio->pos.offset -
+ rbio->data_pos.offset -
rbio->pick.crc.offset)) {
/* extent we wanted to read no longer exists: */
rbio->hole = true;
goto out;
}
- ret = __bch2_read_extent(&trans, rbio, bvec_iter, k, 0, failed, flags);
+ ret = __bch2_read_extent(&trans, rbio, bvec_iter,
+ rbio->read_pos,
+ rbio->data_btree,
+ k, 0, failed, flags);
if (ret == READ_RETRY)
goto retry;
if (ret)
goto err;
out:
bch2_rbio_done(rbio);
+ bch2_trans_iter_put(&trans, iter);
bch2_trans_exit(&trans);
bch2_bkey_buf_exit(&sk, c);
return;
goto out;
}
-static void bch2_read_retry(struct bch_fs *c, struct bch_read_bio *rbio,
- struct bvec_iter bvec_iter, u64 inode,
- struct bch_io_failures *failed, unsigned flags)
-{
- struct btree_trans trans;
- struct btree_iter *iter;
- struct bkey_buf sk;
- struct bkey_s_c k;
- int ret;
-
- flags &= ~BCH_READ_LAST_FRAGMENT;
- flags |= BCH_READ_MUST_CLONE;
-
- bch2_bkey_buf_init(&sk);
- bch2_trans_init(&trans, c, 0, 0);
-retry:
- bch2_trans_begin(&trans);
-
- for_each_btree_key(&trans, iter, BTREE_ID_EXTENTS,
- POS(inode, bvec_iter.bi_sector),
- BTREE_ITER_SLOTS, k, ret) {
- unsigned bytes, sectors, offset_into_extent;
-
- bch2_bkey_buf_reassemble(&sk, c, k);
-
- offset_into_extent = iter->pos.offset -
- bkey_start_offset(k.k);
- sectors = k.k->size - offset_into_extent;
-
- ret = bch2_read_indirect_extent(&trans,
- &offset_into_extent, &sk);
- if (ret)
- break;
-
- k = bkey_i_to_s_c(sk.k);
-
- sectors = min(sectors, k.k->size - offset_into_extent);
-
- bch2_trans_unlock(&trans);
-
- bytes = min(sectors, bvec_iter_sectors(bvec_iter)) << 9;
- swap(bvec_iter.bi_size, bytes);
-
- ret = __bch2_read_extent(&trans, rbio, bvec_iter, k,
- offset_into_extent, failed, flags);
- switch (ret) {
- case READ_RETRY:
- goto retry;
- case READ_ERR:
- goto err;
- };
-
- if (bytes == bvec_iter.bi_size)
- goto out;
-
- swap(bvec_iter.bi_size, bytes);
- bio_advance_iter(&rbio->bio, &bvec_iter, bytes);
- }
-
- if (ret == -EINTR)
- goto retry;
- /*
- * If we get here, it better have been because there was an error
- * reading a btree node
- */
- BUG_ON(!ret);
- bch_err_inum_ratelimited(c, inode,
- "read error %i from btree lookup", ret);
-err:
- rbio->bio.bi_status = BLK_STS_IOERR;
-out:
- bch2_trans_exit(&trans);
- bch2_bkey_buf_exit(&sk, c);
- bch2_rbio_done(rbio);
-}
-
static void bch2_rbio_retry(struct work_struct *work)
{
struct bch_read_bio *rbio =
struct bch_fs *c = rbio->c;
struct bvec_iter iter = rbio->bvec_iter;
unsigned flags = rbio->flags;
- u64 inode = rbio->pos.inode;
+ u64 inode = rbio->read_pos.inode;
struct bch_io_failures failed = { .nr = 0 };
trace_read_retry(&rbio->bio);
flags |= BCH_READ_IN_RETRY;
flags &= ~BCH_READ_MAY_PROMOTE;
- if (flags & BCH_READ_NODECODE)
+ if (flags & BCH_READ_NODECODE) {
bch2_read_retry_nodecode(c, rbio, iter, inode, &failed, flags);
- else
- bch2_read_retry(c, rbio, iter, inode, &failed, flags);
+ } else {
+ flags &= ~BCH_READ_LAST_FRAGMENT;
+ flags |= BCH_READ_MUST_CLONE;
+
+ __bch2_read(c, rbio, iter, inode, &failed, flags);
+ }
}
static void bch2_rbio_error(struct bch_read_bio *rbio, int retry,
struct bch_read_bio *rbio)
{
struct bch_fs *c = rbio->c;
- u64 data_offset = rbio->pos.offset - rbio->pick.crc.offset;
+ u64 data_offset = rbio->data_pos.offset - rbio->pick.crc.offset;
struct bch_extent_crc_unpacked new_crc;
struct btree_iter *iter = NULL;
struct bkey_i *new;
if (crc_is_compressed(rbio->pick.crc))
return 0;
- iter = bch2_trans_get_iter(trans, BTREE_ID_EXTENTS, rbio->pos,
+ iter = bch2_trans_get_iter(trans, rbio->data_btree, rbio->data_pos,
BTREE_ITER_SLOTS|BTREE_ITER_INTENT);
k = bch2_btree_iter_peek_slot(iter);
if ((ret = bkey_err(k)))
return;
}
- bch2_dev_inum_io_error(ca, rbio->pos.inode, (u64) rbio->bvec_iter.bi_sector,
+ bch2_dev_inum_io_error(ca, rbio->read_pos.inode, (u64) rbio->bvec_iter.bi_sector,
"data checksum error: expected %0llx:%0llx got %0llx:%0llx (type %u)",
rbio->pick.crc.csum.hi, rbio->pick.crc.csum.lo,
csum.hi, csum.lo, crc.csum_type);
bch2_rbio_error(rbio, READ_RETRY_AVOID, BLK_STS_IOERR);
return;
decompression_err:
- bch_err_inum_ratelimited(c, rbio->pos.inode,
+ bch_err_inum_ratelimited(c, rbio->read_pos.inode,
"decompression error");
bch2_rbio_error(rbio, READ_ERR, BLK_STS_IOERR);
return;
if (!rbio->split)
rbio->bio.bi_end_io = rbio->end_io;
- /*
- * XXX: rbio->pos is not what we want here when reading from indirect
- * extents
- */
if (bch2_dev_inum_io_err_on(bio->bi_status, ca,
- rbio->pos.inode,
- rbio->pos.offset,
+ rbio->read_pos.inode,
+ rbio->read_pos.offset,
"data read error: %s",
bch2_blk_status_to_str(bio->bi_status))) {
bch2_rbio_error(rbio, READ_RETRY_AVOID, bio->bi_status);
reflink_offset = le64_to_cpu(bkey_i_to_reflink_p(orig_k->k)->v.idx) +
*offset_into_extent;
- iter = bch2_trans_get_iter(trans, BTREE_ID_REFLINK,
+ iter = bch2_trans_get_iter(trans, BTREE_ID_reflink,
POS(0, reflink_offset),
BTREE_ITER_SLOTS);
k = bch2_btree_iter_peek_slot(iter);
}
int __bch2_read_extent(struct btree_trans *trans, struct bch_read_bio *orig,
- struct bvec_iter iter, struct bkey_s_c k,
+ struct bvec_iter iter, struct bpos read_pos,
+ enum btree_id data_btree, struct bkey_s_c k,
unsigned offset_into_extent,
struct bch_io_failures *failed, unsigned flags)
{
struct bch_dev *ca;
struct promote_op *promote = NULL;
bool bounce = false, read_full = false, narrow_crcs = false;
- struct bpos pos = bkey_start_pos(k.k);
+ struct bpos data_pos = bkey_start_pos(k.k);
int pick_ret;
if (bkey_extent_is_inline_data(k.k)) {
pick.crc.offset ||
offset_into_extent));
- pos.offset += offset_into_extent;
+ data_pos.offset += offset_into_extent;
pick.ptr.offset += pick.crc.offset +
offset_into_extent;
offset_into_extent = 0;
/* XXX: only initialize this if needed */
rbio->devs_have = bch2_bkey_devs(k);
rbio->pick = pick;
- rbio->pos = pos;
+ rbio->read_pos = read_pos;
+ rbio->data_btree = data_btree;
+ rbio->data_pos = data_pos;
rbio->version = k.k->version;
rbio->promote = promote;
INIT_WORK(&rbio->work, NULL);
ret = READ_RETRY;
}
+ if (!ret)
+ goto out_read_done;
+
return ret;
}
return 0;
}
-void bch2_read(struct bch_fs *c, struct bch_read_bio *rbio, u64 inode)
+void __bch2_read(struct bch_fs *c, struct bch_read_bio *rbio,
+ struct bvec_iter bvec_iter, u64 inode,
+ struct bch_io_failures *failed, unsigned flags)
{
struct btree_trans trans;
struct btree_iter *iter;
struct bkey_buf sk;
struct bkey_s_c k;
- unsigned flags = BCH_READ_RETRY_IF_STALE|
- BCH_READ_MAY_PROMOTE|
- BCH_READ_USER_MAPPED;
int ret;
- BUG_ON(rbio->_state);
BUG_ON(flags & BCH_READ_NODECODE);
- BUG_ON(flags & BCH_READ_IN_RETRY);
-
- rbio->c = c;
- rbio->start_time = local_clock();
bch2_bkey_buf_init(&sk);
bch2_trans_init(&trans, c, 0, 0);
retry:
bch2_trans_begin(&trans);
- iter = bch2_trans_get_iter(&trans, BTREE_ID_EXTENTS,
- POS(inode, rbio->bio.bi_iter.bi_sector),
+ iter = bch2_trans_get_iter(&trans, BTREE_ID_extents,
+ POS(inode, bvec_iter.bi_sector),
BTREE_ITER_SLOTS);
while (1) {
unsigned bytes, sectors, offset_into_extent;
+ enum btree_id data_btree = BTREE_ID_extents;
bch2_btree_iter_set_pos(iter,
- POS(inode, rbio->bio.bi_iter.bi_sector));
+ POS(inode, bvec_iter.bi_sector));
k = bch2_btree_iter_peek_slot(iter);
ret = bkey_err(k);
if (ret)
- goto err;
+ break;
offset_into_extent = iter->pos.offset -
bkey_start_offset(k.k);
bch2_bkey_buf_reassemble(&sk, c, k);
- ret = bch2_read_indirect_extent(&trans,
+ ret = bch2_read_indirect_extent(&trans, &data_btree,
&offset_into_extent, &sk);
if (ret)
- goto err;
+ break;
k = bkey_i_to_s_c(sk.k);
*/
bch2_trans_unlock(&trans);
- bytes = min(sectors, bio_sectors(&rbio->bio)) << 9;
- swap(rbio->bio.bi_iter.bi_size, bytes);
+ bytes = min(sectors, bvec_iter_sectors(bvec_iter)) << 9;
+ swap(bvec_iter.bi_size, bytes);
- if (rbio->bio.bi_iter.bi_size == bytes)
+ if (bvec_iter.bi_size == bytes)
flags |= BCH_READ_LAST_FRAGMENT;
- bch2_read_extent(&trans, rbio, k, offset_into_extent, flags);
+ ret = __bch2_read_extent(&trans, rbio, bvec_iter, iter->pos,
+ data_btree, k,
+ offset_into_extent, failed, flags);
+ if (ret)
+ break;
if (flags & BCH_READ_LAST_FRAGMENT)
break;
- swap(rbio->bio.bi_iter.bi_size, bytes);
- bio_advance(&rbio->bio, bytes);
+ swap(bvec_iter.bi_size, bytes);
+ bio_advance_iter(&rbio->bio, &bvec_iter, bytes);
}
-out:
- bch2_trans_exit(&trans);
- bch2_bkey_buf_exit(&sk, c);
- return;
-err:
- if (ret == -EINTR)
+ bch2_trans_iter_put(&trans, iter);
+
+ if (ret == -EINTR || ret == READ_RETRY || ret == READ_RETRY_AVOID)
goto retry;
- bch_err_inum_ratelimited(c, inode,
- "read error %i from btree lookup", ret);
- rbio->bio.bi_status = BLK_STS_IOERR;
- bch2_rbio_done(rbio);
- goto out;
+ if (ret) {
+ bch_err_inum_ratelimited(c, inode,
+ "read error %i from btree lookup", ret);
+ rbio->bio.bi_status = BLK_STS_IOERR;
+ bch2_rbio_done(rbio);
+ }
+ bch2_trans_exit(&trans);
+ bch2_bkey_buf_exit(&sk, c);
}
void bch2_fs_io_exit(struct bch_fs *c)
projects / bcachefs-tools-debian / blobdiff