vhost: Remove the unused variable.

Web:        https://git.kernel.org/torvalds/c/ac964d7a594290e230f8c1038934692e30c76fc8
Commit:     ac964d7a594290e230f8c1038934692e30c76fc8
Parent:     daf2a5016983a1a533417bcdc729bd2b19af1b68
Refname:    refs/heads/master
Author:     Tonghao Zhang <[email protected]>
AuthorDate: Tue Jan 9 07:38:22 2018 -0800
Committer:  Michael S. Tsirkin <[email protected]>
CommitDate: Thu Feb 1 16:26:44 2018 +0200

    vhost: Remove the unused variable.
    
    The patch (7235acdb1) changed the way of the work
    flushing in which the queued seq, done seq, and the
    flushing are not used anymore. Then remove them now.
    
    Fixes: 7235acdb1 ("vhost: simplify work flushing")
    Cc: Jason Wang <[email protected]>
    Signed-off-by: Tonghao Zhang <[email protected]>
    Acked-by: Jason Wang <[email protected]>
    Signed-off-by: Michael S. Tsirkin <[email protected]>
---
 drivers/vhost/vhost.c | 1 -
 drivers/vhost/vhost.h | 4 ----
 2 files changed, 5 deletions(-)

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 5727b186b3ca..67fa3d153072 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -181,7 +181,6 @@ void vhost_work_init(struct vhost_work *work, vhost_work_fn_t fn)
 {
 	clear_bit(VHOST_WORK_QUEUED, &work->flags);
 	work->fn = fn;
-	init_waitqueue_head(&work->done);
 }
 EXPORT_SYMBOL_GPL(vhost_work_init);
 
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 79c6e7a60a5e..749fe13e061c 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -20,10 +20,6 @@ typedef void (*vhost_work_fn_t)(struct vhost_work *work);
 struct vhost_work {
 	struct llist_node	  node;
 	vhost_work_fn_t		  fn;
-	wait_queue_head_t	  done;
-	int			  flushing;
-	unsigned		  queue_seq;
-	unsigned		  done_seq;
 	unsigned long		  flags;
 };
 
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