From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f70.google.com (mail-wm0-f70.google.com [74.125.82.70]) by kanga.kvack.org (Postfix) with ESMTP id 2C9906B0266 for ; Sat, 30 Jun 2018 10:55:28 -0400 (EDT) Received: by mail-wm0-f70.google.com with SMTP id q12-v6so1726492wmf.9 for ; Sat, 30 Jun 2018 07:55:28 -0700 (PDT) Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com. [148.163.158.5]) by mx.google.com with ESMTPS id i21-v6si3554887wmc.131.2018.06.30.07.55.26 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 30 Jun 2018 07:55:26 -0700 (PDT) Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w5UErZ5c050287 for ; Sat, 30 Jun 2018 10:55:25 -0400 Received: from e06smtp07.uk.ibm.com (e06smtp07.uk.ibm.com [195.75.94.103]) by mx0b-001b2d01.pphosted.com with ESMTP id 2jx60wj96a-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Sat, 30 Jun 2018 10:55:25 -0400 Received: from localhost by e06smtp07.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Sat, 30 Jun 2018 15:55:24 +0100 From: Mike Rapoport Subject: [PATCH v2 04/11] docs/mm: bootmem: add kernel-doc description of 'struct bootmem_data' Date: Sat, 30 Jun 2018 17:54:59 +0300 In-Reply-To: <1530370506-21751-1-git-send-email-rppt@linux.vnet.ibm.com> References: <1530370506-21751-1-git-send-email-rppt@linux.vnet.ibm.com> Message-Id: <1530370506-21751-5-git-send-email-rppt@linux.vnet.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: Jonathan Corbet Cc: Randy Dunlap , 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..4251519 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 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