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authorChris Mason <chris.mason@fusionio.com>2013-02-20 23:06:05 +0400
committerChris Mason <chris.mason@fusionio.com>2013-02-20 23:06:05 +0400
commite942f883bc6651d50be139477baf6fb0eed3d5bb (patch)
treee1d19783e9c8b42198a69c17c9719fb90f302847 /fs/btrfs/delayed-ref.h
parentb2c6b3e0611c58fbeb6b9c0892b6249f7bdfaf6b (diff)
parent0e4e02636611dbf89a2f36320a32054f9936d6cb (diff)
downloadlinux-e942f883bc6651d50be139477baf6fb0eed3d5bb.tar.xz
Merge branch 'raid56-experimental' into for-linus-3.9
Signed-off-by: Chris Mason <chris.mason@fusionio.com> Conflicts: fs/btrfs/ctree.h fs/btrfs/extent-tree.c fs/btrfs/inode.c fs/btrfs/volumes.c
Diffstat (limited to 'fs/btrfs/delayed-ref.h')
-rw-r--r--fs/btrfs/delayed-ref.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h
index 7939149f8f27..f75fcaf79aeb 100644
--- a/fs/btrfs/delayed-ref.h
+++ b/fs/btrfs/delayed-ref.h
@@ -132,6 +132,15 @@ struct btrfs_delayed_ref_root {
unsigned long num_heads_ready;
/*
+ * bumped when someone is making progress on the delayed
+ * refs, so that other procs know they are just adding to
+ * contention intead of helping
+ */
+ atomic_t procs_running_refs;
+ atomic_t ref_seq;
+ wait_queue_head_t wait;
+
+ /*
* set when the tree is flushing before a transaction commit,
* used by the throttling code to decide if new updates need
* to be run right away