From ec1b826097f30858f9ed201cb78f1a762c50d0aa Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Wed, 30 Nov 2016 14:33:53 +1100
Subject: [PATCH] fs: make sb_init_dio_done_wq available outside of direct-io.c
We want to use the per-sb completion workqueue from the new iomap
direct I/O code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
---
fs/direct-io.c | 2 +-
fs/internal.h | 3 +++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/direct-io.c b/fs/direct-io.c
index fb9aa16a77272..19aa448fde6aa 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -554,7 +554,7 @@ static inline int dio_bio_reap(struct dio *dio, struct dio_submit *sdio)
* filesystems that don't need it and also allows us to create the workqueue
* late enough so the we can include s_id in the name of the workqueue.
*/
-static int sb_init_dio_done_wq(struct super_block *sb)
+int sb_init_dio_done_wq(struct super_block *sb)
{
struct workqueue_struct *old;
struct workqueue_struct *wq = alloc_workqueue("dio/%s",
diff --git a/fs/internal.h b/fs/internal.h
index f4da3341b4a37..4fcf51766d4a6 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -184,3 +184,6 @@ typedef loff_t (*iomap_actor_t)(struct inode *inode, loff_t pos, loff_t len,
loff_t iomap_apply(struct inode *inode, loff_t pos, loff_t length,
unsigned flags, struct iomap_ops *ops, void *data,
iomap_actor_t actor);
+
+/* direct-io.c: */
+int sb_init_dio_done_wq(struct super_block *sb);
--
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