From mboxrd@z Thu Jan 1 00:00:00 1970 From: akpm@linux-foundation.org Subject: [merged] mm-improve-comment-on-page-mapping.patch removed from -mm tree Date: Thu, 01 Feb 2018 11:33:05 -0800 Message-ID: <20180201193305._qa_VM4Gd%akpm@linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Return-path: Received: from mail.linuxfoundation.org ([140.211.169.12]:59052 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754563AbeBATdG (ORCPT ); Thu, 1 Feb 2018 14:33:06 -0500 Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: cl@linux.com, kirill.shutemov@linux.intel.com, mawilcox@microsoft.com, mhocko@suse.com, mm-commits@vger.kernel.org, rdunlap@infradead.org The patch titled Subject: mm: improve comment on page->mapping has been removed from the -mm tree. Its filename was mm-improve-comment-on-page-mapping.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Matthew Wilcox Subject: mm: improve comment on page->mapping The comment on page->mapping is terse, and out of date (it does not mention the possibility of PAGE_MAPPING_MOVABLE). Instead, point the interested reader to page-flags.h where there is a much better comment. Link: http://lkml.kernel.org/r/20171220155552.15884-5-willy@infradead.org Signed-off-by: Matthew Wilcox Acked-by: Kirill A. Shutemov Acked-by: Michal Hocko Acked-by: Christoph Lameter Cc: Randy Dunlap Signed-off-by: Andrew Morton --- include/linux/mm_types.h | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff -puN include/linux/mm_types.h~mm-improve-comment-on-page-mapping include/linux/mm_types.h --- a/include/linux/mm_types.h~mm-improve-comment-on-page-mapping +++ a/include/linux/mm_types.h @@ -50,15 +50,9 @@ struct page { unsigned long flags; /* Atomic flags, some possibly * updated asynchronously */ union { - struct address_space *mapping; /* If low bit clear, points to - * inode address_space, or NULL. - * If page mapped as anonymous - * memory, low bit is set, and - * it points to anon_vma object - * or KSM private structure. See - * PAGE_MAPPING_ANON and - * PAGE_MAPPING_KSM. - */ + /* See page-flags.h for the definition of PAGE_MAPPING_FLAGS */ + struct address_space *mapping; + void *s_mem; /* slab first object */ atomic_t compound_mapcount; /* first tail page */ /* page_deferred_list().next -- second tail page */ _ Patches currently in -mm which might be from mawilcox@microsoft.com are