+ ucount-fix-atomic_long_inc_below-argument-type.patch added to mm-nonmm-unstable branch

+ ucount-fix-atomic_long_inc_below-argument-type.patch added to mm-nonmm-unstable branch

[Andrew Morton]

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The patch titled
     Subject: ucount: fix atomic_long_inc_below() argument type
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     ucount-fix-atomic_long_inc_below-argument-type.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/ucount-fix-atomic_long_inc_below-argument-type.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Uros Bizjak <ubizjak@gmail.com>
Subject: ucount: fix atomic_long_inc_below() argument type
Date: Mon, 21 Jul 2025 19:45:57 +0200

The type of u argument of atomic_long_inc_below() should be long to avoid
unwanted truncation to int.

Link: https://lkml.kernel.org/r/20250721174610.28361-1-ubizjak@gmail.com
Fixes: f9c82a4ea89c ("Increase size of ucounts to atomic_long_t")
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Alexey Gladkov <legion@kernel.org>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: MengEn Sun <mengensun@tencent.com>
Cc: "Thomas Weißschuh" <linux@weissschuh.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/ucount.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/ucount.c~ucount-fix-atomic_long_inc_below-argument-type
+++ a/kernel/ucount.c
@@ -199,7 +199,7 @@ 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);
_

Patches currently in -mm which might be from ubizjak@gmail.com are

ucount-fix-atomic_long_inc_below-argument-type.patch
ucount-use-atomic_long_try_cmpxchg-in-atomic_long_inc_below.patch