From c51ca6cf545bc51ad38bd50816bde37c647d608d Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@fb.com>
Date: Sat, 10 Dec 2016 15:13:59 -0700
Subject: block: move existing elevator ops to union

Prep patch for adding MQ ops as well, since doing anon unions with
named initializers doesn't work on older compilers.

Signed-off-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
---
 include/linux/elevator.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index b276e9ef0e0b..2a9e966eed03 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -94,7 +94,9 @@ struct elevator_type
 	struct kmem_cache *icq_cache;
 
 	/* fields provided by elevator implementation */
-	struct elevator_ops ops;
+	union {
+		struct elevator_ops sq;
+	} ops;
 	size_t icq_size;	/* see iocontext.h */
 	size_t icq_align;	/* ditto */
 	struct elv_fs_entry *elevator_attrs;
-- 
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