From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: [patch 087/128] mm/memory: remove unnecessary pte_devmap case in copy_one_pte() Date: Mon, 01 Jun 2020 21:50:08 -0700 Message-ID: <20200602045008.40kMct10z%akpm@linux-foundation.org> References: <20200601214457.919c35648e96a2b46b573fe1@linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Return-path: Received: from mail.kernel.org ([198.145.29.99]:41624 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725793AbgFBEuJ (ORCPT ); Tue, 2 Jun 2020 00:50:09 -0400 In-Reply-To: <20200601214457.919c35648e96a2b46b573fe1@linux-foundation.org> Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: akpm@linux-foundation.org, chenqiwu@xiaomi.com, linux-mm@kvack.org, mhocko@suse.com, mm-commits@vger.kernel.org, torvalds@linux-foundation.org, willy@infradead.org From: chenqiwu Subject: mm/memory: remove unnecessary pte_devmap case in copy_one_pte() Since commit 25b2995a35b6 ("mm: remove MEMORY_DEVICE_PUBLIC support"), the assignment to 'page' for pte_devmap case has been unnecessary. Let's remove it. [willy@infradead.org: changelog] Link: http://lkml.kernel.org/r/1587349685-31712-1-git-send-email-qiwuchen55@gmail.com Signed-off-by: chenqiwu Acked-by: Michal Hocko Reviewed-by: Matthew Wilcox Signed-off-by: Andrew Morton --- mm/memory.c | 2 -- 1 file changed, 2 deletions(-) --- a/mm/memory.c~mm-memory-remove-unnecessary-pte_devmap-case-in-copy_one_pte +++ a/mm/memory.c @@ -802,8 +802,6 @@ copy_one_pte(struct mm_struct *dst_mm, s get_page(page); page_dup_rmap(page, false); rss[mm_counter(page)]++; - } else if (pte_devmap(pte)) { - page = pte_page(pte); } out_set_pte: _