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[2.102.13.223]) by smtp.googlemail.com with ESMTPSA id y12sm8660782wmj.6.2020.02.14.12.48.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 Feb 2020 12:48:42 -0800 (PST) From: Jules Irenge To: linux-kernel@vger.kernel.org Cc: boqun.feng@gmail.com, Jules Irenge , Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , linux-mm@kvack.org (open list:SLAB ALLOCATOR) Subject: [PATCH 08/30] mm/slub: Add missing annotation for get_map() Date: Fri, 14 Feb 2020 20:47:19 +0000 Message-Id: <20200214204741.94112-9-jbi.octave@gmail.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200214204741.94112-1-jbi.octave@gmail.com> References: <0/30> <20200214204741.94112-1-jbi.octave@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Sparse reports a warning at get_map()() warning: context imbalance in get_map() - wrong count at exit The root cause is the missing annotation at get_map() Add the missing __acquires(&object_map_lock) annotation Signed-off-by: Jules Irenge --- mm/slub.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/slub.c b/mm/slub.c index 17dc00e33115..3c6d348afcf9 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -449,6 +449,7 @@ static DEFINE_SPINLOCK(object_map_lock); * not vanish from under us. */ static unsigned long *get_map(struct kmem_cache *s, struct page *page) + __acquires(&object_map_lock) { void *p; void *addr =3D page_address(page); --=20 2.24.1