From: Stefan Hajnoczi <stefanha@redhat.com>
Date: Fri, 22 Jun 2018 13:48:30 +0100
Subject: fuse: export fuse_get_unique()
Git-commit: 79d96efffda7597b41968d5d8813b39fc2965f1b
Patch-mainline: v5.4-rc1
References: jsc#SLE-13782

virtio-fs will need unique IDs for FORGET requests from outside
fs/fuse/dev.c.  Make the symbol visible.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Acked-by: Luis Henriques <lhenriques@suse.com>
---
 fs/fuse/dev.c    | 3 ++-
 fs/fuse/fuse_i.h | 5 +++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 8f36e6485bb2..151176a99dc2 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -189,11 +189,12 @@ unsigned int fuse_len_args(unsigned int numargs, struct fuse_arg *args)
 }
 EXPORT_SYMBOL_GPL(fuse_len_args);
 
-static u64 fuse_get_unique(struct fuse_iqueue *fiq)
+u64 fuse_get_unique(struct fuse_iqueue *fiq)
 {
 	fiq->reqctr += FUSE_REQ_ID_STEP;
 	return fiq->reqctr;
 }
+EXPORT_SYMBOL_GPL(fuse_get_unique);
 
 static unsigned int fuse_req_hash(u64 unique)
 {
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 7192080a06d0..b868b71d47d9 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -977,4 +977,9 @@ int fuse_readdir(struct file *file, struct dir_context *ctx);
  */
 unsigned int fuse_len_args(unsigned int numargs, struct fuse_arg *args);
 
+/**
+ * Get the next unique ID for a request
+ */
+u64 fuse_get_unique(struct fuse_iqueue *fiq);
+
 #endif /* _FS_FUSE_I_H */