From: Kirill Tkhai ktkhai@virtuozzo.com
[ 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: Kirill Tkhai ktkhai@virtuozzo.com Signed-off-by: Miklos Szeredi mszeredi@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- 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 e25c40c10f4fa..97ac2f5843fcc 100644 --- a/fs/fuse/control.c +++ b/fs/fuse/control.c @@ -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);