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Diffstat (limited to 'fs/btrfs/transaction.c')
-rw-r--r--fs/btrfs/transaction.c92
1 files changed, 61 insertions, 31 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index e7a95356df83..c6a872a8a468 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -57,7 +57,7 @@ static unsigned int btrfs_blocked_trans_types[TRANS_STATE_MAX] = {
__TRANS_JOIN_NOLOCK),
};
-static void put_transaction(struct btrfs_transaction *transaction)
+void btrfs_put_transaction(struct btrfs_transaction *transaction)
{
WARN_ON(atomic_read(&transaction->use_count) == 0);
if (atomic_dec_and_test(&transaction->use_count)) {
@@ -332,7 +332,7 @@ static void wait_current_trans(struct btrfs_root *root)
wait_event(root->fs_info->transaction_wait,
cur_trans->state >= TRANS_STATE_UNBLOCKED ||
cur_trans->aborted);
- put_transaction(cur_trans);
+ btrfs_put_transaction(cur_trans);
} else {
spin_unlock(&root->fs_info->trans_lock);
}
@@ -353,6 +353,17 @@ static int may_wait_transaction(struct btrfs_root *root, int type)
return 0;
}
+static inline bool need_reserve_reloc_root(struct btrfs_root *root)
+{
+ if (!root->fs_info->reloc_ctl ||
+ !root->ref_cows ||
+ root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID ||
+ root->reloc_root)
+ return false;
+
+ return true;
+}
+
static struct btrfs_trans_handle *
start_transaction(struct btrfs_root *root, u64 num_items, unsigned int type,
enum btrfs_reserve_flush_enum flush)
@@ -360,8 +371,9 @@ start_transaction(struct btrfs_root *root, u64 num_items, unsigned int type,
struct btrfs_trans_handle *h;
struct btrfs_transaction *cur_trans;
u64 num_bytes = 0;
- int ret;
u64 qgroup_reserved = 0;
+ bool reloc_reserved = false;
+ int ret;
if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state))
return ERR_PTR(-EROFS);
@@ -390,6 +402,14 @@ start_transaction(struct btrfs_root *root, u64 num_items, unsigned int type,
}
num_bytes = btrfs_calc_trans_metadata_size(root, num_items);
+ /*
+ * Do the reservation for the relocation root creation
+ */
+ if (unlikely(need_reserve_reloc_root(root))) {
+ num_bytes += root->nodesize;
+ reloc_reserved = true;
+ }
+
ret = btrfs_block_rsv_add(root,
&root->fs_info->trans_block_rsv,
num_bytes, flush);
@@ -451,6 +471,7 @@ again:
h->delayed_ref_elem.seq = 0;
h->type = type;
h->allocating_chunk = false;
+ h->reloc_reserved = false;
INIT_LIST_HEAD(&h->qgroup_ref_list);
INIT_LIST_HEAD(&h->new_bgs);
@@ -466,6 +487,7 @@ again:
h->transid, num_bytes, 1);
h->block_rsv = &root->fs_info->trans_block_rsv;
h->bytes_reserved = num_bytes;
+ h->reloc_reserved = reloc_reserved;
}
h->qgroup_reserved = qgroup_reserved;
@@ -610,7 +632,7 @@ int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid)
}
wait_for_commit(root, cur_trans);
- put_transaction(cur_trans);
+ btrfs_put_transaction(cur_trans);
out:
return ret;
}
@@ -735,7 +757,7 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
smp_mb();
if (waitqueue_active(&cur_trans->writer_wait))
wake_up(&cur_trans->writer_wait);
- put_transaction(cur_trans);
+ btrfs_put_transaction(cur_trans);
if (current->journal_info == trans)
current->journal_info = NULL;
@@ -744,8 +766,10 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
btrfs_run_delayed_iputs(root);
if (trans->aborted ||
- test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state))
+ test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) {
+ wake_up_process(info->transaction_kthread);
err = -EIO;
+ }
assert_qgroups_uptodate(trans);
kmem_cache_free(btrfs_trans_handle_cachep, trans);
@@ -948,16 +972,19 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans,
return ret;
ret = btrfs_run_dev_stats(trans, root->fs_info);
- WARN_ON(ret);
+ if (ret)
+ return ret;
ret = btrfs_run_dev_replace(trans, root->fs_info);
- WARN_ON(ret);
-
+ if (ret)
+ return ret;
ret = btrfs_run_qgroups(trans, root->fs_info);
- BUG_ON(ret);
+ if (ret)
+ return ret;
/* run_qgroups might have added some more refs */
ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1);
- BUG_ON(ret);
+ if (ret)
+ return ret;
while (!list_empty(&fs_info->dirty_cowonly_roots)) {
next = fs_info->dirty_cowonly_roots.next;
@@ -1453,7 +1480,7 @@ static void do_async_commit(struct work_struct *work)
* We've got freeze protection passed with the transaction.
* Tell lockdep about it.
*/
- if (ac->newtrans->type < TRANS_JOIN_NOLOCK)
+ if (ac->newtrans->type & __TRANS_FREEZABLE)
rwsem_acquire_read(
&ac->root->fs_info->sb->s_writers.lock_map[SB_FREEZE_FS-1],
0, 1, _THIS_IP_);
@@ -1494,7 +1521,7 @@ int btrfs_commit_transaction_async(struct btrfs_trans_handle *trans,
* Tell lockdep we've released the freeze rwsem, since the
* async commit thread will be the one to unlock it.
*/
- if (trans->type < TRANS_JOIN_NOLOCK)
+ if (ac->newtrans->type & __TRANS_FREEZABLE)
rwsem_release(
&root->fs_info->sb->s_writers.lock_map[SB_FREEZE_FS-1],
1, _THIS_IP_);
@@ -1510,7 +1537,7 @@ int btrfs_commit_transaction_async(struct btrfs_trans_handle *trans,
if (current->journal_info == trans)
current->journal_info = NULL;
- put_transaction(cur_trans);
+ btrfs_put_transaction(cur_trans);
return 0;
}
@@ -1552,8 +1579,10 @@ static void cleanup_transaction(struct btrfs_trans_handle *trans,
root->fs_info->running_transaction = NULL;
spin_unlock(&root->fs_info->trans_lock);
- put_transaction(cur_trans);
- put_transaction(cur_trans);
+ if (trans->type & __TRANS_FREEZABLE)
+ sb_end_intwrite(root->fs_info->sb);
+ btrfs_put_transaction(cur_trans);
+ btrfs_put_transaction(cur_trans);
trace_btrfs_transaction_commit(root);
@@ -1571,15 +1600,19 @@ static int btrfs_flush_all_pending_stuffs(struct btrfs_trans_handle *trans,
int ret;
ret = btrfs_run_delayed_items(trans, root);
- if (ret)
- return ret;
-
/*
* running the delayed items may have added new refs. account
* them now so that they hinder processing of more delayed refs
* as little as possible.
*/
- btrfs_delayed_refs_qgroup_accounting(trans, root->fs_info);
+ if (ret) {
+ btrfs_delayed_refs_qgroup_accounting(trans, root->fs_info);
+ return ret;
+ }
+
+ ret = btrfs_delayed_refs_qgroup_accounting(trans, root->fs_info);
+ if (ret)
+ return ret;
/*
* rename don't use btrfs_join_transaction, so, once we
@@ -1596,14 +1629,14 @@ static int btrfs_flush_all_pending_stuffs(struct btrfs_trans_handle *trans,
static inline int btrfs_start_delalloc_flush(struct btrfs_fs_info *fs_info)
{
if (btrfs_test_opt(fs_info->tree_root, FLUSHONCOMMIT))
- return btrfs_start_all_delalloc_inodes(fs_info, 1);
+ return btrfs_start_delalloc_roots(fs_info, 1);
return 0;
}
static inline void btrfs_wait_delalloc_flush(struct btrfs_fs_info *fs_info)
{
if (btrfs_test_opt(fs_info->tree_root, FLUSHONCOMMIT))
- btrfs_wait_all_ordered_extents(fs_info);
+ btrfs_wait_ordered_roots(fs_info, -1);
}
int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
@@ -1669,7 +1702,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
wait_for_commit(root, cur_trans);
- put_transaction(cur_trans);
+ btrfs_put_transaction(cur_trans);
return ret;
}
@@ -1686,7 +1719,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
wait_for_commit(root, prev_trans);
- put_transaction(prev_trans);
+ btrfs_put_transaction(prev_trans);
} else {
spin_unlock(&root->fs_info->trans_lock);
}
@@ -1838,11 +1871,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
assert_qgroups_uptodate(trans);
update_super_roots(root);
- if (!root->fs_info->log_root_recovering) {
- btrfs_set_super_log_root(root->fs_info->super_copy, 0);
- btrfs_set_super_log_root_level(root->fs_info->super_copy, 0);
- }
-
+ btrfs_set_super_log_root(root->fs_info->super_copy, 0);
+ btrfs_set_super_log_root_level(root->fs_info->super_copy, 0);
memcpy(root->fs_info->super_for_commit, root->fs_info->super_copy,
sizeof(*root->fs_info->super_copy));
@@ -1888,8 +1918,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
list_del_init(&cur_trans->list);
spin_unlock(&root->fs_info->trans_lock);
- put_transaction(cur_trans);
- put_transaction(cur_trans);
+ btrfs_put_transaction(cur_trans);
+ btrfs_put_transaction(cur_trans);
if (trans->type & __TRANS_FREEZABLE)
sb_end_intwrite(root->fs_info->sb);
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-12 00:16:06 +0000