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| author | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2012-06-21 11:08:04 +0200 |
|---|---|---|
| committer | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2012-07-10 15:14:41 +0200 |
| commit | 097b8a7c9e48e2cb50fd0eb9315791921beaf484 (patch) | |
| tree | 03588f0e29000e415f7177d31a8f5b4c1689d6ad /fs/btrfs/disk-io.c | |
| parent | cf5388307a2b4faab4b11d732b61c85741be6169 (diff) | |
| download | op-kernel-dev-097b8a7c9e48e2cb50fd0eb9315791921beaf484.zip op-kernel-dev-097b8a7c9e48e2cb50fd0eb9315791921beaf484.tar.gz | |
Btrfs: join tree mod log code with the code holding back delayed refs
We've got two mechanisms both required for reliable backref resolving (tree
mod log and holding back delayed refs). You cannot make use of one without
the other. So instead of requiring the user of this mechanism to setup both
correctly, we join them into a single interface.
Additionally, we stop inserting non-blockers into fs_info->tree_mod_seq_list
as we did before, which was of no value.
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Diffstat (limited to 'fs/btrfs/disk-io.c')
| -rw-r--r-- | fs/btrfs/disk-io.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 8cc4710..19a39e1 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1944,6 +1944,8 @@ int open_ctree(struct super_block *sb, fs_info->free_chunk_space = 0; fs_info->tree_mod_log = RB_ROOT; + init_waitqueue_head(&fs_info->tree_mod_seq_wait); + /* readahead state */ INIT_RADIX_TREE(&fs_info->reada_tree, GFP_NOFS & ~__GFP_WAIT); spin_lock_init(&fs_info->reada_lock); |
