From: Uros Bizjak <ubizjak@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Uros Bizjak <ubizjak@gmail.com>,
"Eric W. Biederman" <ebiederm@xmission.com>
Subject: [PATCH RESEND 1/2] ucount: Fix atomic_long_inc_below argument type
Date: Mon, 17 Oct 2022 16:40:48 +0200 [thread overview]
Message-ID: <20221017144049.3404-2-ubizjak@gmail.com> (raw)
In-Reply-To: <20221017144049.3404-1-ubizjak@gmail.com>
The type of u argument of atomic_long_inc_below should be long
to avoid unwanted truncation to int.
Fixes: f9c82a4ea89c ("Increase size of ucounts to atomic_long_t")
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
---
kernel/ucount.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/ucount.c b/kernel/ucount.c
index ee8e57fd6f90..74f5b4959feb 100644
--- a/kernel/ucount.c
+++ b/kernel/ucount.c
@@ -212,7 +212,7 @@ void put_ucounts(struct ucounts *ucounts)
}
}
-static inline bool atomic_long_inc_below(atomic_long_t *v, int u)
+static inline bool atomic_long_inc_below(atomic_long_t *v, long u)
{
long c, old;
c = atomic_long_read(v);
--
2.37.3
next prev parent reply other threads:[~2022-10-17 14:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-17 14:40 [PATCH RESEND 0/2] ucount: Fix and improve atomic_long_inc_below Uros Bizjak
2022-10-17 14:40 ` Uros Bizjak [this message]
2022-10-17 14:40 ` [PATCH RESEND 2/2] ucount: Use atomic_long_try_cmpxchg in atomic_long_inc_below Uros Bizjak
2022-10-31 19:02 ` Alexey Gladkov
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