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Mon, 17 Nov 2025 22:09:09 -0800 (PST) From: Sahil Chandna To: akpm@linux-foundation.org, david@redhat.com, lorenzo.stoakes@oracle.com, mhocko@suse.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, hannes@cmpxchg.org, shakeel.butt@linux.dev, zhengqi.arch@bytedance.com, Liam.Howlett@oracle.com, weixugc@google.com, axelrasmussen@google.com, yuanchu@google.com, yosry.ahmed@linux.dev, nphamcs@gmail.com, chengming.zhou@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Sahil Chandna Subject: [PATCH 1/3] mm/pagewalk: use min() macro instead of manual ternary Date: Tue, 18 Nov 2025 11:38:49 +0530 Message-ID: X-Mailer: git-send-email 2.50.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" mm: pagewalk: use min() macro instead of manual ternary expression Use the kernel-provided min() macro to compute the minimum value instead of an explicit ternary expression. This improves readability and matches common kernel style. This was flagged by Coccinelle (misc/minmax.cocci) as an opportunity to use min(). Found by: make coccicheck MODE=3Dreport M=3Dmm/ No functional change intended. Signed-off-by: Sahil Chandna --- mm/pagewalk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/pagewalk.c b/mm/pagewalk.c index 9f91cf85a5be..82db421b5b34 100644 --- a/mm/pagewalk.c +++ b/mm/pagewalk.c @@ -313,7 +313,7 @@ static unsigned long hugetlb_entry_end(struct hstate *h= , unsigned long addr, unsigned long end) { unsigned long boundary =3D (addr & huge_page_mask(h)) + huge_page_size(h); - return boundary < end ? boundary : end; + return min(boundary, end); } =20 static int walk_hugetlb_range(unsigned long addr, unsigned long end, --=20 2.50.1 From nobody Tue Dec 2 02:42:44 2025 Received: from mail-pl1-f175.google.com (mail-pl1-f175.google.com [209.85.214.175]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EA5C72D9EEA for ; Tue, 18 Nov 2025 06:09:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.175 ARC-Seal: i=1; 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Mon, 17 Nov 2025 22:09:18 -0800 (PST) Received: from chandna.localdomain ([106.222.230.39]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2986e5ef32asm124461135ad.39.2025.11.17.22.09.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Nov 2025 22:09:17 -0800 (PST) From: Sahil Chandna To: akpm@linux-foundation.org, david@redhat.com, lorenzo.stoakes@oracle.com, mhocko@suse.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, hannes@cmpxchg.org, shakeel.butt@linux.dev, zhengqi.arch@bytedance.com, Liam.Howlett@oracle.com, weixugc@google.com, axelrasmussen@google.com, yuanchu@google.com, yosry.ahmed@linux.dev, nphamcs@gmail.com, chengming.zhou@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Sahil Chandna Subject: [PATCH 2/3] mm/vmscan: use %pe to print PTR_ERR() values Date: Tue, 18 Nov 2025 11:38:50 +0530 Message-ID: <94ba6ef88d97eb1a5e20eeab9f913be8fdc46fd5.1763227530.git.chandna.sahil@gmail.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use the %pe printk format specifier to report error pointers directly instead of printing PTR_ERR() as a long value. This improves clarity, produces more readable error messages. This instance was flagged by the Coccinelle script (misc/ptr_err_to_pe.cocci) as an opportunity to adopt %pe. Found by: make coccicheck MODE=3Dreport M=3Dmm/ No functional change intended Signed-off-by: Sahil Chandna Reviewed-by: SeongJae Park --- mm/vmscan.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index b2fc8b626d3d..7d5b41696cc3 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -7500,8 +7500,8 @@ void __meminit kswapd_run(int nid) pgdat->kswapd =3D kthread_create_on_node(kswapd, pgdat, nid, "kswapd%d",= nid); if (IS_ERR(pgdat->kswapd)) { /* failure at boot is fatal */ - pr_err("Failed to start kswapd on node %d,ret=3D%ld\n", - nid, PTR_ERR(pgdat->kswapd)); + pr_err("Failed to start kswapd on node %d,ret=3D%pe\n", + nid, pgdat->kswapd); BUG_ON(system_state < SYSTEM_RUNNING); pgdat->kswapd =3D NULL; } else { --=20 2.50.1 From nobody Tue Dec 2 02:42:44 2025 Received: from mail-pl1-f178.google.com (mail-pl1-f178.google.com [209.85.214.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A405D2DEA72 for ; 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Mon, 17 Nov 2025 22:09:24 -0800 (PST) Received: from chandna.localdomain ([106.222.230.39]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2986e5ef32asm124461135ad.39.2025.11.17.22.09.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Nov 2025 22:09:24 -0800 (PST) From: Sahil Chandna To: akpm@linux-foundation.org, david@redhat.com, lorenzo.stoakes@oracle.com, mhocko@suse.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, hannes@cmpxchg.org, shakeel.butt@linux.dev, zhengqi.arch@bytedance.com, Liam.Howlett@oracle.com, weixugc@google.com, axelrasmussen@google.com, yuanchu@google.com, yosry.ahmed@linux.dev, nphamcs@gmail.com, chengming.zhou@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Sahil Chandna Subject: [PATCH 3/3] mm/zswap: use %pe to print PTR_ERR() values Date: Tue, 18 Nov 2025 11:38:51 +0530 Message-ID: <555cdbea3a51898e4c84fdc0f444dae0c2e20f24.1763227530.git.chandna.sahil@gmail.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use the %pe printk format specifier to report error pointers directly instead of printing PTR_ERR() as a long value. This improves clarity, produces more readable error messages. This instance was flagged by the Coccinelle script (misc/ptr_err_to_pe.cocci) as an opportunity to adopt %pe. Found by: make coccicheck MODE=3Dreport M=3Dmm/ No functional change intended. Signed-off-by: Sahil Chandna Acked-by: Nhat Pham Acked-by: Yosry Ahmed Reviewed-by: SeongJae Park --- mm/zswap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/zswap.c b/mm/zswap.c index c1af782e54ec..c35604db32ad 100644 --- a/mm/zswap.c +++ b/mm/zswap.c @@ -749,8 +749,8 @@ static int zswap_cpu_comp_prepare(unsigned int cpu, str= uct hlist_node *node) =20 acomp =3D crypto_alloc_acomp_node(pool->tfm_name, 0, 0, cpu_to_node(cpu)); if (IS_ERR(acomp)) { - pr_err("could not alloc crypto acomp %s : %ld\n", - pool->tfm_name, PTR_ERR(acomp)); + pr_err("could not alloc crypto acomp %s : %pe\n", + pool->tfm_name, acomp); ret =3D PTR_ERR(acomp); goto fail; } --=20 2.50.1