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btrfs_create, btrfs_write_super, btrfs_sync_fs

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2007-03-23 10:01:08 -04:00
committed by David Woodhouse
parent 79154b1b5b
commit d571976292
10 changed files with 201 additions and 47 deletions
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13
fs/btrfs/transaction.c
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@@ -25,7 +25,7 @@ static int join_transaction(struct btrfs_root *root)
init_waitqueue_head(&cur_trans->writer_wait);
init_waitqueue_head(&cur_trans->commit_wait);
cur_trans->in_commit = 0;
cur_trans->use_count = 0;
cur_trans->use_count = 1;
cur_trans->commit_done = 0;
}
cur_trans->num_writers++;
@@ -56,7 +56,7 @@ int btrfs_end_transaction(struct btrfs_trans_handle *trans,
struct btrfs_transaction *cur_trans;
mutex_lock(&root->fs_info->trans_mutex);
cur_trans = root->fs_info->running_transaction;
WARN_ON(cur_trans->num_writers <= 1);
WARN_ON(cur_trans->num_writers < 1);
if (waitqueue_active(&cur_trans->writer_wait))
wake_up(&cur_trans->writer_wait);
cur_trans->num_writers--;
@@ -155,10 +155,13 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
cur_trans = root->fs_info->running_transaction;
root->fs_info->running_transaction = NULL;
mutex_unlock(&root->fs_info->trans_mutex);
memcpy(&snap_key, &root->root_key, sizeof(snap_key));
root->root_key.offset++;
if (root->node != root->commit_root) {
memcpy(&snap_key, &root->root_key, sizeof(snap_key));
root->root_key.offset++;
}
mutex_unlock(&root->fs_info->trans_mutex);
if (btrfs_root_blocknr(&root->root_item) != root->node->b_blocknr) {
btrfs_set_root_blocknr(&root->root_item, root->node->b_blocknr);