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Howlett" , Lorenzo Stoakes , Vlastimil Babka , Jann Horn , Pedro Falcato , Zi Yan , Kefeng Wang Subject: [PATCH v2 2/5] mm: mincore: replace __get_free_page() with kmalloc() Date: Fri, 10 Jul 2026 20:00:48 +0800 Message-ID: <20260710120052.103886-3-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260710120052.103886-1-wangkefeng.wang@huawei.com> References: <20260710120052.103886-1-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: kwepems200002.china.huawei.com (7.221.188.68) To dggpemf100008.china.huawei.com (7.185.36.138) X-Stat-Signature: 5dmp7ntd7eigi5fi6qdp9emd1j71xc5j X-Rspamd-Queue-Id: 5607414001E X-Rspamd-Server: rspam01 X-Rspam-User: X-HE-Tag: 1783684869-176272 X-HE-Meta: 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 qbeSLjp3 ZSynbrbmdWMzsWQqcbYijJlU1ljl6pQFUXR8XqxDPhMnmjzxcObl9q221uzAnZ9cvxatE989S3tOkFXRtl/AJqPg1ay0WevQI4CgCDXL6oLnLLN7q/lNiNqsfSB49WHs6cvppY24sQW4BJ88BAKhd0RdLnTe1uOHz/Y1cpMpbXQ8dcp7hnfR8+rWDLLC11no8pSE9sZr0M5tPynJnGgn9dlU+p+v+b00N1pITL8cfTt8n+yzK4+Vs6Enb93JFqSEt13E1BQvBplvfs+ZdqB1NYrE+bKW+yJA3DojQDVXmjnicqpEmHCc3STaqfyLIR+zQu/YPU1vrfnMvUYMnJQclJGyWKQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Remove ugly casts by using the more natural kmalloc/kfree allocation, also replace GFP_USER(pointless here) with GFP_KERNEL. Reviewed-by: Pedro Falcato Signed-off-by: Kefeng Wang --- mm/mincore.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/mm/mincore.c b/mm/mincore.c index 0eb832ee0a30..bff19a0df9f5 100644 --- a/mm/mincore.c +++ b/mm/mincore.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -313,7 +314,7 @@ SYSCALL_DEFINE3(mincore, unsigned long, start, size_t, len, if (!access_ok(vec, pages)) return -EFAULT; - tmp = (void *) __get_free_page(GFP_USER); + tmp = kmalloc(PAGE_SIZE, GFP_KERNEL); if (!tmp) return -EAGAIN; @@ -338,6 +339,6 @@ SYSCALL_DEFINE3(mincore, unsigned long, start, size_t, len, start += retval << PAGE_SHIFT; retval = 0; } - free_page((unsigned long) tmp); + kfree(tmp); return retval; } -- 2.55.0