Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754450Ab3IWMM2 (ORCPT ); Mon, 23 Sep 2013 08:12:28 -0400 Received: from mga14.intel.com ([143.182.124.37]:59137 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753959Ab3IWMGM (ORCPT ); Mon, 23 Sep 2013 08:06:12 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.90,962,1371106800"; d="scan'208";a="364269193" From: "Kirill A. Shutemov" To: Andrea Arcangeli , Andrew Morton Cc: Al Viro , Hugh Dickins , Wu Fengguang , Jan Kara , Mel Gorman , linux-mm@kvack.org, Andi Kleen , Matthew Wilcox , "Kirill A. Shutemov" , Hillf Danton , Dave Hansen , Ning Qu , Alexander Shishkin , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Subject: [PATCHv6 08/22] mm: trace filemap: dump page order Date: Mon, 23 Sep 2013 15:05:36 +0300 Message-Id: <1379937950-8411-9-git-send-email-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 1.8.4.rc3 In-Reply-To: <1379937950-8411-1-git-send-email-kirill.shutemov@linux.intel.com> References: <1379937950-8411-1-git-send-email-kirill.shutemov@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1756 Lines: 52 Dump page order to trace to be able to distinguish between small page and huge page in page cache. Signed-off-by: Kirill A. Shutemov Acked-by: Dave Hansen --- include/trace/events/filemap.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/include/trace/events/filemap.h b/include/trace/events/filemap.h index 0421f49a20..7e14b13470 100644 --- a/include/trace/events/filemap.h +++ b/include/trace/events/filemap.h @@ -21,6 +21,7 @@ DECLARE_EVENT_CLASS(mm_filemap_op_page_cache, __field(struct page *, page) __field(unsigned long, i_ino) __field(unsigned long, index) + __field(int, order) __field(dev_t, s_dev) ), @@ -28,18 +29,20 @@ DECLARE_EVENT_CLASS(mm_filemap_op_page_cache, __entry->page = page; __entry->i_ino = page->mapping->host->i_ino; __entry->index = page->index; + __entry->order = compound_order(page); if (page->mapping->host->i_sb) __entry->s_dev = page->mapping->host->i_sb->s_dev; else __entry->s_dev = page->mapping->host->i_rdev; ), - TP_printk("dev %d:%d ino %lx page=%p pfn=%lu ofs=%lu", + TP_printk("dev %d:%d ino %lx page=%p pfn=%lu ofs=%lu order=%d", MAJOR(__entry->s_dev), MINOR(__entry->s_dev), __entry->i_ino, __entry->page, page_to_pfn(__entry->page), - __entry->index << PAGE_SHIFT) + __entry->index << PAGE_SHIFT, + __entry->order) ); DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_delete_from_page_cache, -- 1.8.4.rc3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/