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fuse: use READ_ONCE on congestion_threshold and max_background

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[ Upstream commit 2a23f2b8ad ]

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>
This commit is contained in:
Kirill Tkhai 2018-08-27 18:29:29 +03:00 committed by Greg Kroah-Hartman
parent 9d7681036d
commit 2b149bb378
1 changed files with 2 additions and 2 deletions
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4
fs/fuse/control.c
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@ -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);