#include "tree-log.h"
#include "inode-map.h"
#include "volumes.h"
+#include "dev-replace.h"
#define BTRFS_ROOT_TRANS_TAG 0
* the log must never go across transaction boundaries.
*/
smp_mb();
- if (!list_empty(&fs_info->tree_mod_seq_list)) {
- printk(KERN_ERR "btrfs: tree_mod_seq_list not empty when "
+ if (!list_empty(&fs_info->tree_mod_seq_list))
+ WARN(1, KERN_ERR "btrfs: tree_mod_seq_list not empty when "
"creating a fresh transaction\n");
- WARN_ON(1);
- }
- if (!RB_EMPTY_ROOT(&fs_info->tree_mod_log)) {
- printk(KERN_ERR "btrfs: tree_mod_log rb tree not empty when "
+ if (!RB_EMPTY_ROOT(&fs_info->tree_mod_log))
+ WARN(1, KERN_ERR "btrfs: tree_mod_log rb tree not empty when "
"creating a fresh transaction\n");
- WARN_ON(1);
- }
atomic_set(&fs_info->tree_mod_seq, 0);
spin_lock_init(&cur_trans->commit_lock);
return 0;
}
-static struct btrfs_trans_handle *start_transaction(struct btrfs_root *root,
- u64 num_items, int type,
- int noflush)
+static struct btrfs_trans_handle *
+start_transaction(struct btrfs_root *root, u64 num_items, int type,
+ enum btrfs_reserve_flush_enum flush)
{
struct btrfs_trans_handle *h;
struct btrfs_transaction *cur_trans;
WARN_ON(type != TRANS_JOIN && type != TRANS_JOIN_NOLOCK);
h = current->journal_info;
h->use_count++;
+ WARN_ON(h->use_count > 2);
h->orig_rsv = h->block_rsv;
h->block_rsv = NULL;
goto got_it;
}
num_bytes = btrfs_calc_trans_metadata_size(root, num_items);
- if (noflush)
- ret = btrfs_block_rsv_add_noflush(root,
- &root->fs_info->trans_block_rsv,
- num_bytes);
- else
- ret = btrfs_block_rsv_add(root,
- &root->fs_info->trans_block_rsv,
- num_bytes);
+ ret = btrfs_block_rsv_add(root,
+ &root->fs_info->trans_block_rsv,
+ num_bytes, flush);
if (ret)
return ERR_PTR(ret);
}
struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root,
int num_items)
{
- return start_transaction(root, num_items, TRANS_START, 0);
+ return start_transaction(root, num_items, TRANS_START,
+ BTRFS_RESERVE_FLUSH_ALL);
}
-struct btrfs_trans_handle *btrfs_start_transaction_noflush(
+struct btrfs_trans_handle *btrfs_start_transaction_lflush(
struct btrfs_root *root, int num_items)
{
- return start_transaction(root, num_items, TRANS_START, 1);
+ return start_transaction(root, num_items, TRANS_START,
+ BTRFS_RESERVE_FLUSH_LIMIT);
}
struct btrfs_trans_handle *btrfs_join_transaction(struct btrfs_root *root)
int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid)
{
struct btrfs_transaction *cur_trans = NULL, *t;
- int ret;
+ int ret = 0;
- ret = 0;
if (transid) {
if (transid <= root->fs_info->last_trans_committed)
goto out;
+ ret = -EINVAL;
/* find specified transaction */
spin_lock(&root->fs_info->trans_lock);
list_for_each_entry(t, &root->fs_info->trans_list, list) {
if (t->transid == transid) {
cur_trans = t;
atomic_inc(&cur_trans->use_count);
+ ret = 0;
break;
}
- if (t->transid > transid)
+ if (t->transid > transid) {
+ ret = 0;
break;
+ }
}
spin_unlock(&root->fs_info->trans_lock);
- ret = -EINVAL;
+ /* The specified transaction doesn't exist */
if (!cur_trans)
- goto out; /* bad transid */
+ goto out;
} else {
/* find newest transaction that is committing | committed */
spin_lock(&root->fs_info->trans_lock);
}
wait_for_commit(root, cur_trans);
-
put_transaction(cur_trans);
- ret = 0;
out:
return ret;
}
return ret;
ret = btrfs_run_dev_stats(trans, root->fs_info);
- BUG_ON(ret);
+ WARN_ON(ret);
+ ret = btrfs_run_dev_replace(trans, root->fs_info);
+ WARN_ON(ret);
ret = btrfs_run_qgroups(trans, root->fs_info);
BUG_ON(ret);
switch_commit_root(fs_info->extent_root);
up_write(&fs_info->extent_commit_sem);
+ btrfs_after_dev_replace_commit(fs_info);
+
return 0;
}
struct btrfs_fs_info *info = root->fs_info;
struct btrfs_trans_handle *trans;
int ret;
- unsigned long nr;
if (xchg(&root->defrag_running, 1))
return 0;
ret = btrfs_defrag_leaves(trans, root, cacheonly);
- nr = trans->blocks_used;
btrfs_end_transaction(trans, root);
- btrfs_btree_balance_dirty(info->tree_root, nr);
+ btrfs_btree_balance_dirty(info->tree_root);
cond_resched();
if (btrfs_fs_closing(root->fs_info) || ret != -EAGAIN)
btrfs_reloc_pre_snapshot(trans, pending, &to_reserve);
if (to_reserve > 0) {
- ret = btrfs_block_rsv_add_noflush(root, &pending->block_rsv,
- to_reserve);
+ ret = btrfs_block_rsv_add(root, &pending->block_rsv,
+ to_reserve,
+ BTRFS_RESERVE_NO_FLUSH);
if (ret) {
pending->error = ret;
goto no_free_objectid;
parent_inode, &key,
BTRFS_FT_DIR, index);
/* We have check then name at the beginning, so it is impossible. */
- BUG_ON(ret == -EEXIST);
+ BUG_ON(ret == -EEXIST || ret == -EOVERFLOW);
if (ret) {
btrfs_abort_transaction(trans, root, ret);
goto fail;
btrfs_i_size_write(parent_inode, parent_inode->i_size +
dentry->d_name.len * 2);
parent_inode->i_mtime = parent_inode->i_ctime = CURRENT_TIME;
- ret = btrfs_update_inode(trans, parent_root, parent_inode);
+ ret = btrfs_update_inode_fallback(trans, parent_root, parent_inode);
if (ret)
btrfs_abort_transaction(trans, root, ret);
fail:
* We've got freeze protection passed with the transaction.
* Tell lockdep about it.
*/
- rwsem_acquire_read(
- &ac->root->fs_info->sb->s_writers.lock_map[SB_FREEZE_FS-1],
- 0, 1, _THIS_IP_);
+ if (ac->newtrans->type < TRANS_JOIN_NOLOCK)
+ rwsem_acquire_read(
+ &ac->root->fs_info->sb->s_writers.lock_map[SB_FREEZE_FS-1],
+ 0, 1, _THIS_IP_);
current->journal_info = ac->newtrans;
* Tell lockdep we've released the freeze rwsem, since the
* async commit thread will be the one to unlock it.
*/
- rwsem_release(&root->fs_info->sb->s_writers.lock_map[SB_FREEZE_FS-1],
- 1, _THIS_IP_);
+ if (trans->type < TRANS_JOIN_NOLOCK)
+ rwsem_release(
+ &root->fs_info->sb->s_writers.lock_map[SB_FREEZE_FS-1],
+ 1, _THIS_IP_);
schedule_delayed_work(&ac->work, 0);
kmem_cache_free(btrfs_trans_handle_cachep, trans);
}
+static int btrfs_flush_all_pending_stuffs(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root)
+{
+ int flush_on_commit = btrfs_test_opt(root, FLUSHONCOMMIT);
+ int snap_pending = 0;
+ int ret;
+
+ if (!flush_on_commit) {
+ spin_lock(&root->fs_info->trans_lock);
+ if (!list_empty(&trans->transaction->pending_snapshots))
+ snap_pending = 1;
+ spin_unlock(&root->fs_info->trans_lock);
+ }
+
+ if (flush_on_commit || snap_pending) {
+ btrfs_start_delalloc_inodes(root, 1);
+ btrfs_wait_ordered_extents(root, 1);
+ }
+
+ 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);
+
+ /*
+ * rename don't use btrfs_join_transaction, so, once we
+ * set the transaction to blocked above, we aren't going
+ * to get any new ordered operations. We can safely run
+ * it here and no for sure that nothing new will be added
+ * to the list
+ */
+ btrfs_run_ordered_operations(root, 1);
+
+ return 0;
+}
+
/*
* btrfs_transaction state sequence:
* in_commit = 0, blocked = 0 (initial)
struct btrfs_transaction *cur_trans = trans->transaction;
struct btrfs_transaction *prev_trans = NULL;
DEFINE_WAIT(wait);
- int ret = -EIO;
+ int ret;
int should_grow = 0;
unsigned long now = get_seconds();
- int flush_on_commit = btrfs_test_opt(root, FLUSHONCOMMIT);
- btrfs_run_ordered_operations(root, 0);
+ ret = btrfs_run_ordered_operations(root, 0);
+ if (ret) {
+ btrfs_abort_transaction(trans, root, ret);
+ goto cleanup_transaction;
+ }
- if (cur_trans->aborted)
+ if (cur_trans->aborted) {
+ ret = cur_trans->aborted;
goto cleanup_transaction;
+ }
/* make a pass through all the delayed refs we have so far
* any runnings procs may add more while we are here
should_grow = 1;
do {
- int snap_pending = 0;
-
joined = cur_trans->num_joined;
- if (!list_empty(&trans->transaction->pending_snapshots))
- snap_pending = 1;
WARN_ON(cur_trans != trans->transaction);
- if (flush_on_commit || snap_pending) {
- btrfs_start_delalloc_inodes(root, 1);
- btrfs_wait_ordered_extents(root, 1);
- }
-
- ret = btrfs_run_delayed_items(trans, root);
+ ret = btrfs_flush_all_pending_stuffs(trans, root);
if (ret)
goto cleanup_transaction;
- /*
- * 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);
-
- /*
- * rename don't use btrfs_join_transaction, so, once we
- * set the transaction to blocked above, we aren't going
- * to get any new ordered operations. We can safely run
- * it here and no for sure that nothing new will be added
- * to the list
- */
- btrfs_run_ordered_operations(root, 1);
-
prepare_to_wait(&cur_trans->writer_wait, &wait,
TASK_UNINTERRUPTIBLE);
} while (atomic_read(&cur_trans->num_writers) > 1 ||
(should_grow && cur_trans->num_joined != joined));
+ ret = btrfs_flush_all_pending_stuffs(trans, root);
+ if (ret)
+ goto cleanup_transaction;
+
/*
* Ok now we need to make sure to block out any other joins while we
* commit the transaction. We could have started a join before setting
projects / linux-drm-fsl-dcu.git / blobdiff