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Commit d7b412e1 authored by Kirill Tkhai's avatar Kirill Tkhai Committed by Greg Kroah-Hartman
Browse files

fuse: use READ_ONCE on congestion_threshold and max_background 



[ Upstream commit 2a23f2b8adbe4bd584f936f7ac17a99750eed9d7 ]

Since they are of unsigned int type, it's allowed to read them
unlocked during reporting to userspace. Let's underline this fact
with READ_ONCE() macroses.

Signed-off-by: default avatarKirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: default avatarMiklos Szeredi <mszeredi@redhat.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 2e72489c

fs/fuse/control.c

+2 −2
Original line number Diff line number Diff line
@@ -107,7 +107,7 @@ static ssize_t fuse_conn_max_background_read(struct file *file, 
	if (!fc)

		return 0;



	val = fc->max_background;

	val = READ_ONCE(fc->max_background);

	fuse_conn_put(fc);



	return fuse_conn_limit_read(file, buf, len, ppos, val);
@@ -144,7 +144,7 @@ static ssize_t fuse_conn_congestion_threshold_read(struct file *file, 
	if (!fc)

		return 0;



	val = fc->congestion_threshold;

	val = READ_ONCE(fc->congestion_threshold);

	fuse_conn_put(fc);



	return fuse_conn_limit_read(file, buf, len, ppos, val);