Btrfs: Create a work queue for bio writes
This allows checksumming to happen in parallel among many cpus, and
keeps us from bogging down pdflush with the checksumming code.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index a22edcf..ff15b85 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -514,8 +514,11 @@
struct list_head hashers;
struct list_head dead_roots;
struct list_head end_io_work_list;
+ struct list_head async_submit_work_list;
struct work_struct end_io_work;
+ struct work_struct async_submit_work;
spinlock_t end_io_work_lock;
+ spinlock_t async_submit_work_lock;
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18)
struct work_struct trans_work;