From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 925ECC433EF for ; Sat, 30 Apr 2022 04:00:38 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 2331F6B0072; Sat, 30 Apr 2022 00:00:38 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1BE876B0074; Sat, 30 Apr 2022 00:00:38 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 05D256B0075; Sat, 30 Apr 2022 00:00:38 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.25]) by kanga.kvack.org (Postfix) with ESMTP id E85CB6B0072 for ; Sat, 30 Apr 2022 00:00:37 -0400 (EDT) Received: from smtpin28.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id C8C882994B for ; Sat, 30 Apr 2022 04:00:37 +0000 (UTC) X-FDA: 79412193714.28.3C53416 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by imf05.hostedemail.com (Postfix) with ESMTP id 870CC10006D for ; Sat, 30 Apr 2022 04:00:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1651291236; x=1682827236; h=date:from:to:cc:subject:message-id:mime-version; bh=nR+dZwu2gebj05i1MvX1ezTnk9f63umTXm3Bwbuagts=; b=JvJsNCdzHQ8pTTEI75JIFBSwJd7ETtKzrC4saNREcFIXhqCYrZzTGr7N i0xyNMfxs+nTnj6LbnhyuqmD8jOYlyZHzdzDt+pxi2csUIzJ4zOcuWMyy s4MaR5S8m7hehNSab05cwYMJhPyKwKsLiMO6JIqSQbap70QOJN+luDs81 LTsHtf8JFzkChZPnRlmlrieXkXB+/DbLI5PwSyaEVnVf4FCAj+m7Hg30+ tcZn/AdMy2cjeFLP8n8NzEavFs+S3n7aYjTuHNUBYwxIE8Y2Oy9QUA7PS pTiUjnMotOQef8xoqUTHCneQDC19gXcbn8Mv4fBVownv/lk9IUrKP2sl9 A==; X-IronPort-AV: E=McAfee;i="6400,9594,10332"; a="266378534" X-IronPort-AV: E=Sophos;i="5.91,187,1647327600"; d="scan'208";a="266378534" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Apr 2022 21:00:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,187,1647327600"; d="scan'208";a="582572538" Received: from lkp-server01.sh.intel.com (HELO 5056e131ad90) ([10.239.97.150]) by orsmga008.jf.intel.com with ESMTP; 29 Apr 2022 21:00:33 -0700 Received: from kbuild by 5056e131ad90 with local (Exim 4.95) (envelope-from ) id 1nkeHY-0006r5-KY; Sat, 30 Apr 2022 04:00:32 +0000 Date: Sat, 30 Apr 2022 12:00:28 +0800 From: kernel test robot To: Miaohe Lin Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Johannes Weiner , Naoya Horiguchi , Andrew Morton , Linux Memory Management List Subject: [hnaz-mm:master 214/410] mm/madvise.c:632:36: error: implicit declaration of function 'is_swapin_error_entry' Message-ID: <202204301111.d0R5xzHF-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 870CC10006D X-Stat-Signature: tizhxg3tychkaumby11ztr8ind6mbjdk X-Rspam-User: Authentication-Results: imf05.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=JvJsNCdz; spf=none (imf05.hostedemail.com: domain of lkp@intel.com has no SPF policy when checking 134.134.136.24) smtp.mailfrom=lkp@intel.com; dmarc=pass (policy=none) header.from=intel.com X-HE-Tag: 1651291227-6787 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: tree: https://github.com/hnaz/linux-mm master head: bf4803abaa3e9d2fa207c0675a2d2abf0fd44f66 commit: fe343091405131f91dcb9230ae7649bb1ee7fe9a [214/410] mm/madvise: free hwpoison and swapin error entry in madvise_free_pte_range config: x86_64-rhel-8.3-func (https://download.01.org/0day-ci/archive/20220430/202204301111.d0R5xzHF-lkp@intel.com/config) compiler: gcc-11 (Debian 11.2.0-20) 11.2.0 reproduce (this is a W=1 build): # https://github.com/hnaz/linux-mm/commit/fe343091405131f91dcb9230ae7649bb1ee7fe9a git remote add hnaz-mm https://github.com/hnaz/linux-mm git fetch --no-tags hnaz-mm master git checkout fe343091405131f91dcb9230ae7649bb1ee7fe9a # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot Note: the hnaz-mm/master HEAD bf4803abaa3e9d2fa207c0675a2d2abf0fd44f66 builds fine. It only hurts bisectability. All errors (new ones prefixed by >>): mm/madvise.c: In function 'madvise_free_pte_range': >> mm/madvise.c:632:36: error: implicit declaration of function 'is_swapin_error_entry' [-Werror=implicit-function-declaration] 632 | is_swapin_error_entry(entry)) { | ^~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/is_swapin_error_entry +632 mm/madvise.c 587 588 static int madvise_free_pte_range(pmd_t *pmd, unsigned long addr, 589 unsigned long end, struct mm_walk *walk) 590 591 { 592 struct mmu_gather *tlb = walk->private; 593 struct mm_struct *mm = tlb->mm; 594 struct vm_area_struct *vma = walk->vma; 595 spinlock_t *ptl; 596 pte_t *orig_pte, *pte, ptent; 597 struct page *page; 598 int nr_swap = 0; 599 unsigned long next; 600 601 next = pmd_addr_end(addr, end); 602 if (pmd_trans_huge(*pmd)) 603 if (madvise_free_huge_pmd(tlb, vma, pmd, addr, next)) 604 goto next; 605 606 if (pmd_trans_unstable(pmd)) 607 return 0; 608 609 tlb_change_page_size(tlb, PAGE_SIZE); 610 orig_pte = pte = pte_offset_map_lock(mm, pmd, addr, &ptl); 611 flush_tlb_batched_pending(mm); 612 arch_enter_lazy_mmu_mode(); 613 for (; addr != end; pte++, addr += PAGE_SIZE) { 614 ptent = *pte; 615 616 if (pte_none(ptent)) 617 continue; 618 /* 619 * If the pte has swp_entry, just clear page table to 620 * prevent swap-in which is more expensive rather than 621 * (page allocation + zeroing). 622 */ 623 if (!pte_present(ptent)) { 624 swp_entry_t entry; 625 626 entry = pte_to_swp_entry(ptent); 627 if (!non_swap_entry(entry)) { 628 nr_swap--; 629 free_swap_and_cache(entry); 630 pte_clear_not_present_full(mm, addr, pte, tlb->fullmm); 631 } else if (is_hwpoison_entry(entry) || > 632 is_swapin_error_entry(entry)) { 633 pte_clear_not_present_full(mm, addr, pte, tlb->fullmm); 634 } 635 continue; 636 } 637 638 page = vm_normal_page(vma, addr, ptent); 639 if (!page) 640 continue; 641 642 /* 643 * If pmd isn't transhuge but the page is THP and 644 * is owned by only this process, split it and 645 * deactivate all pages. 646 */ 647 if (PageTransCompound(page)) { 648 if (page_mapcount(page) != 1) 649 goto out; 650 get_page(page); 651 if (!trylock_page(page)) { 652 put_page(page); 653 goto out; 654 } 655 pte_unmap_unlock(orig_pte, ptl); 656 if (split_huge_page(page)) { 657 unlock_page(page); 658 put_page(page); 659 orig_pte = pte_offset_map_lock(mm, pmd, addr, &ptl); 660 goto out; 661 } 662 unlock_page(page); 663 put_page(page); 664 orig_pte = pte = pte_offset_map_lock(mm, pmd, addr, &ptl); 665 pte--; 666 addr -= PAGE_SIZE; 667 continue; 668 } 669 670 VM_BUG_ON_PAGE(PageTransCompound(page), page); 671 672 if (PageSwapCache(page) || PageDirty(page)) { 673 if (!trylock_page(page)) 674 continue; 675 /* 676 * If page is shared with others, we couldn't clear 677 * PG_dirty of the page. 678 */ 679 if (page_mapcount(page) != 1) { 680 unlock_page(page); 681 continue; 682 } 683 684 if (PageSwapCache(page) && !try_to_free_swap(page)) { 685 unlock_page(page); 686 continue; 687 } 688 689 ClearPageDirty(page); 690 unlock_page(page); 691 } 692 693 if (pte_young(ptent) || pte_dirty(ptent)) { 694 /* 695 * Some of architecture(ex, PPC) don't update TLB 696 * with set_pte_at and tlb_remove_tlb_entry so for 697 * the portability, remap the pte with old|clean 698 * after pte clearing. 699 */ 700 ptent = ptep_get_and_clear_full(mm, addr, pte, 701 tlb->fullmm); 702 703 ptent = pte_mkold(ptent); 704 ptent = pte_mkclean(ptent); 705 set_pte_at(mm, addr, pte, ptent); 706 tlb_remove_tlb_entry(tlb, pte, addr); 707 } 708 mark_page_lazyfree(page); 709 } 710 out: 711 if (nr_swap) { 712 if (current->mm == mm) 713 sync_mm_rss(mm); 714 715 add_mm_counter(mm, MM_SWAPENTS, nr_swap); 716 } 717 arch_leave_lazy_mmu_mode(); 718 pte_unmap_unlock(orig_pte, ptl); 719 cond_resched(); 720 next: 721 return 0; 722 } 723 -- 0-DAY CI Kernel Test Service https://01.org/lkp