[PATCH 5.18 0905/1095] fuse: Remove the control interface for virtio-fs

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From: Xie Yongji <xieyongji@xxxxxxxxxxxxx>

[ Upstream commit c64797809a64c73497082aa05e401a062ec1af34 ]

The commit 15c8e72e88e0 ("fuse: allow skipping control interface and forced
unmount") tries to remove the control interface for virtio-fs since it does
not support aborting requests which are being processed. But it doesn't
work now.

This patch fixes it by skipping creating the control interface if
fuse_conn->no_control is set.

Fixes: 15c8e72e88e0 ("fuse: allow skipping control interface and forced unmount")
Signed-off-by: Xie Yongji <xieyongji@xxxxxxxxxxxxx>
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/fuse/control.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/fuse/control.c b/fs/fuse/control.c
index 7cede9a3bc96..247ef4f76761 100644
--- a/fs/fuse/control.c
+++ b/fs/fuse/control.c
@@ -258,7 +258,7 @@ int fuse_ctl_add_conn(struct fuse_conn *fc)
 	struct dentry *parent;
 	char name[32];
 
-	if (!fuse_control_sb)
+	if (!fuse_control_sb || fc->no_control)
 		return 0;
 
 	parent = fuse_control_sb->s_root;
@@ -296,7 +296,7 @@ void fuse_ctl_remove_conn(struct fuse_conn *fc)
 {
 	int i;
 
-	if (!fuse_control_sb)
+	if (!fuse_control_sb || fc->no_control)
 		return;
 
 	for (i = fc->ctl_ndents - 1; i >= 0; i--) {
-- 
2.35.1






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