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Sun, 14 Jun 2020 05:39:46 -0700 (PDT) From: Muchun Song To: cl@linux.com, penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com, akpm@linux-foundation.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Muchun Song Subject: [PATCH 2/3] mm/slub: Use node_nr_slabs() instead of slabs_node() Date: Sun, 14 Jun 2020 20:39:22 +0800 Message-Id: <20200614123923.99189-3-songmuchun@bytedance.com> X-Mailer: git-send-email 2.21.0 (Apple Git-122) In-Reply-To: <20200614123923.99189-1-songmuchun@bytedance.com> References: <20200614123923.99189-1-songmuchun@bytedance.com> MIME-Version: 1.0 X-Rspamd-Queue-Id: 6DDE7180F8B93 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam01 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: In the some code, we already get the kmem_cache_node, so we can use node_nr_slabs() directly instead of slabs_node(). Check the condition of n->nr_partial can also be removed because we can get the correct result via node_nr_slabs(). Signed-off-by: Muchun Song --- mm/slub.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 1a3e6a5b7287..b73505df3de2 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -3829,7 +3829,7 @@ bool __kmem_cache_empty(struct kmem_cache *s) struct kmem_cache_node *n; =20 for_each_kmem_cache_node(s, node, n) - if (n->nr_partial || slabs_node(s, node)) + if (node_nr_slabs(n)) return false; return true; } @@ -3846,7 +3846,7 @@ int __kmem_cache_shutdown(struct kmem_cache *s) /* Attempt to free all objects */ for_each_kmem_cache_node(s, node, n) { free_partial(s, n); - if (n->nr_partial || slabs_node(s, node)) + if (node_nr_slabs(n)) return 1; } sysfs_slab_remove(s); @@ -4126,7 +4126,7 @@ int __kmem_cache_shrink(struct kmem_cache *s) list_for_each_entry_safe(page, t, &discard, slab_list) discard_slab(s, page); =20 - if (slabs_node(s, node)) + if (node_nr_slabs(n)) ret =3D 1; } =20 @@ -4201,7 +4201,7 @@ static void slab_mem_offline_callback(void *arg) * and offline_pages() function shouldn't call this * callback. So, we must fail. */ - BUG_ON(slabs_node(s, offline_node)); + BUG_ON(node_nr_slabs(n)); =20 s->node[offline_node] =3D NULL; kmem_cache_free(kmem_cache_node, n); --=20 2.11.0