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Btrfs: Replace the transaction work queue with kthreads

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This creates one kthread for commits and one kthread for
deleting old snapshots.  All the work queues are removed.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2008-06-25 16:01:31 -04:00
parent 89ce8a63d0
commit a74a4b97b6
8 changed files with 136 additions and 118 deletions
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10
fs/btrfs/extent-tree.c
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@@ -1216,15 +1216,16 @@ static int do_chunk_alloc(struct btrfs_trans_handle *trans,
if (ret == -ENOSPC) {
printk("space info full %Lu\n", flags);
space_info->full = 1;
goto out;
goto out_unlock;
}
BUG_ON(ret);
ret = btrfs_make_block_group(trans, extent_root, 0, flags,
BTRFS_FIRST_CHUNK_TREE_OBJECTID, start, num_bytes);
BUG_ON(ret);
out:
out_unlock:
mutex_unlock(&extent_root->fs_info->chunk_mutex);
out:
return 0;
}
@@ -2274,7 +2275,8 @@ static int noinline walk_down_tree(struct btrfs_trans_handle *trans,
free_extent_buffer(next);
mutex_unlock(&root->fs_info->alloc_mutex);
reada_walk_down(root, cur, path->slots[*level]);
if (path->slots[*level] == 0)
reada_walk_down(root, cur, path->slots[*level]);
next = read_tree_block(root, bytenr, blocksize,
ptr_gen);
@@ -2446,8 +2448,6 @@ int btrfs_drop_snapshot(struct btrfs_trans_handle *trans, struct btrfs_root
break;
if (wret < 0)
ret = wret;
ret = -EAGAIN;
break;
}
for (i = 0; i <= orig_level; i++) {
if (path->nodes[i]) {