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Howlett" , Lorenzo Stoakes , Vlastimil Babka , Jann Horn , Pedro Falcato , Zi Yan , Kefeng Wang Subject: [PATCH v3-fixup 2/6] mm: mincore: fixup for remove special handling for VM_PFNMAP Date: Mon, 20 Jul 2026 20:41:51 +0800 Message-ID: <20260720124151.1483820-1-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260717091347.1144789-3-wangkefeng.wang@huawei.com> References: <20260717091347.1144789-3-wangkefeng.wang@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.50.87.83] X-ClientProxiedBy: kwepems200001.china.huawei.com (7.221.188.67) To dggpemf100008.china.huawei.com (7.185.36.138) X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: A737D40002 X-Stat-Signature: g8j47hizgmpj9o1ut7e4zg7wo5kbpwk6 X-Rspam-User: X-HE-Tag: 1784551328-432429 X-HE-Meta: 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 PLr1iNYu mXKCbYLaziI6e0Dkg5slaWK8djg/u4WgZYP4VqdNG6WLZUsMsnZUppbvmaPMgKdQK6Pecd4XLxjQkRNMLgzRQJoFX0VB3JMHLqK8jr0wS5mNinBFZ+Y9npiwGv+P5yrth9AcGt+udDGni6zNurZ/Uc3GUxBQRbzseSp0i829/QYbcfk2lizP0cu2GM9DMp4TURvDGI5JON9qH8aymD5FgaMGniRnxR3c3ku5IWtqyQB6GIqp9w65ht0Nd/5K0Wloy/holL01e7uP91TahghN/ntB0UqanNwkF+9RV1WWkpCuQOsoX5JW5VJLBqu+qcohnOUPx89qSVsSIiJy/80XFklwwuA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Address David's comments - rename mincore_pud_range to mincore_pud_entry - change int nr to const unsigned long - remove a local vec variable Signed-off-by: Kefeng Wang --- mm/mincore.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/mm/mincore.c b/mm/mincore.c index d7841a38b54a..9ea81638d09f 100644 --- a/mm/mincore.c +++ b/mm/mincore.c @@ -146,16 +146,15 @@ static int mincore_unmapped_range(unsigned long addr, unsigned long end, return 0; } -static int mincore_pud_range(pud_t *pudp, unsigned long addr, unsigned long end, +static int mincore_pud_entry(pud_t *pudp, unsigned long addr, unsigned long end, struct mm_walk *walk) { if (pud_is_huge(pudp_get(pudp))) { - int nr = (end - addr) >> PAGE_SHIFT; - unsigned char *vec = walk->private; + const unsigned long nr = (end - addr) >> PAGE_SHIFT; - memset(vec, 1, nr); - walk->action = ACTION_CONTINUE; + memset(walk->private, 1, nr); walk->private += nr; + walk->action = ACTION_CONTINUE; } return 0; @@ -233,7 +232,7 @@ static inline bool can_do_mincore(struct vm_area_struct *vma) } static const struct mm_walk_ops mincore_walk_ops = { - .pud_entry = mincore_pud_range, + .pud_entry = mincore_pud_entry, .pmd_entry = mincore_pte_range, .pte_hole = mincore_unmapped_range, .hugetlb_entry = mincore_hugetlb, -- 2.55.0