From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934448AbcAZMqd (ORCPT ); Tue, 26 Jan 2016 07:46:33 -0500 Received: from mx2.suse.de ([195.135.220.15]:45882 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933550AbcAZMq0 (ORCPT ); Tue, 26 Jan 2016 07:46:26 -0500 From: Vlastimil Babka To: Andrew Morton Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Vlastimil Babka , Joonsoo Kim , Minchan Kim , Sasha Levin , "Kirill A. Shutemov" , Mel Gorman , Michal Hocko Subject: [PATCH v4 07/14] mm, page_alloc: print symbolic gfp_flags on allocation failure Date: Tue, 26 Jan 2016 13:45:46 +0100 Message-Id: <1453812353-26744-8-git-send-email-vbabka@suse.cz> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1453812353-26744-1-git-send-email-vbabka@suse.cz> References: <1453812353-26744-1-git-send-email-vbabka@suse.cz> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It would be useful to translate gfp_flags into string representation when printing in case of an allocation failure, especially as the flags have been undergoing some changes recently and the script ./scripts/gfp-translate needs a matching source version to be accurate. Example output: stapio: page allocation failure: order:9, mode:0x2080020(GFP_ATOMIC) Signed-off-by: Vlastimil Babka Cc: Joonsoo Kim Cc: Minchan Kim Cc: Sasha Levin Cc: "Kirill A. Shutemov" Cc: Mel Gorman Acked-by: Michal Hocko --- mm/page_alloc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index d60c8600e5f6..f89f51aae9a6 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2691,9 +2691,8 @@ void warn_alloc_failed(gfp_t gfp_mask, unsigned int order, const char *fmt, ...) va_end(args); } - pr_warn("%s: page allocation failure: order:%u, mode:0x%x\n", - current->comm, order, gfp_mask); - + pr_warn("%s: page allocation failure: order:%u, mode:%#x(%pGg)\n", + current->comm, order, gfp_mask, &gfp_mask); dump_stack(); if (!should_suppress_show_mem()) show_mem(filter); -- 2.7.0