From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f200.google.com (mail-wr0-f200.google.com [209.85.128.200]) by kanga.kvack.org (Postfix) with ESMTP id CBC7E6B000C for ; Mon, 18 Jun 2018 13:00:19 -0400 (EDT) Received: by mail-wr0-f200.google.com with SMTP id z69-v6so12333916wrb.20 for ; Mon, 18 Jun 2018 10:00:19 -0700 (PDT) Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com. [148.163.158.5]) by mx.google.com with ESMTPS id v8-v6si13110091wrm.205.2018.06.18.10.00.17 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 18 Jun 2018 10:00:18 -0700 (PDT) Received: from pps.filterd (m0098419.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w5IGwrZY124582 for ; Mon, 18 Jun 2018 13:00:17 -0400 Received: from e06smtp07.uk.ibm.com (e06smtp07.uk.ibm.com [195.75.94.103]) by mx0b-001b2d01.pphosted.com with ESMTP id 2jpfw3299n-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 18 Jun 2018 13:00:16 -0400 Received: from localhost by e06smtp07.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 18 Jun 2018 18:00:15 +0100 From: Mike Rapoport Subject: [PATCH 04/11] docs/mm: bootmem: add kernel-doc description of 'struct bootmem_data' Date: Mon, 18 Jun 2018 19:59:52 +0300 In-Reply-To: <1529341199-17682-1-git-send-email-rppt@linux.vnet.ibm.com> References: <1529341199-17682-1-git-send-email-rppt@linux.vnet.ibm.com> Message-Id: <1529341199-17682-5-git-send-email-rppt@linux.vnet.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: Jonathan Corbet Cc: Andrew Morton , linux-doc , linux-mm , lkml , Mike Rapoport Signed-off-by: Mike Rapoport --- include/linux/bootmem.h | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h index 7942a96..1526ba1 100644 --- a/include/linux/bootmem.h +++ b/include/linux/bootmem.h @@ -27,9 +27,20 @@ extern unsigned long max_pfn; extern unsigned long long max_possible_pfn; #ifndef CONFIG_NO_BOOTMEM -/* - * node_bootmem_map is a map pointer - the bits represent all physical - * memory pages (including holes) on the node. +/** + * struct bootmem_data - per-node information used by the bootmem allocator + * @node_min_pfn: the starting physical address of the node's memory + * @node_low_pfn: the end physical address of the directly addressable memory + * @node_bootmem_map: is a bitmap pointer - the bits represent all physical + * memory pages (including holes) on the node. + * @last_end_off: the offset within the page of the end of the last allocation; + * if 0, the page used is full + * @hint_idx: the the PFN of the page used with the last allocation; + * together with using this with the @last_end_offset field, + * a test can be made to see if allocations can be merged + * with the page used for the last allocation rather than + * using up a full new page. + * @list: list entry in the linked list ordered by the memory addresses */ typedef struct bootmem_data { unsigned long node_min_pfn; -- 2.7.4