From: Mike Rapoport <rppt@linux.vnet.ibm.com>
To: Jonathan Corbet <corbet@lwn.net>
Cc: Randy Dunlap <rdunlap@infradead.org>,
linux-doc <linux-doc@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>,
lkml <linux-kernel@vger.kernel.org>,
Mike Rapoport <rppt@linux.vnet.ibm.com>
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 [thread overview]
Message-ID: <1530370506-21751-5-git-send-email-rppt@linux.vnet.ibm.com> (raw)
In-Reply-To: <1530370506-21751-1-git-send-email-rppt@linux.vnet.ibm.com>
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
---
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
next prev parent reply other threads:[~2018-06-30 14:55 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-30 14:54 [PATCH v2 00/11] docs/mm: add boot time memory management docs Mike Rapoport
2018-06-30 14:54 ` [PATCH v2 01/11] mm/bootmem: drop duplicated kernel-doc comments Mike Rapoport
2018-06-30 14:54 ` [PATCH v2 02/11] docs/mm: nobootmem: fixup " Mike Rapoport
2018-06-30 14:54 ` [PATCH v2 03/11] docs/mm: bootmem: fix kernel-doc warnings Mike Rapoport
2018-06-30 14:54 ` Mike Rapoport [this message]
2018-06-30 14:55 ` [PATCH v2 05/11] docs/mm: bootmem: add overview documentation Mike Rapoport
2018-06-30 14:55 ` [PATCH v2 06/11] mm/memblock: add a name for memblock flags enumeration Mike Rapoport
2018-07-12 8:00 ` Michal Hocko
2018-06-30 14:55 ` [PATCH v2 07/11] docs/mm: memblock: update kernel-doc comments Mike Rapoport
2018-06-30 14:55 ` [PATCH v2 08/11] docs/mm: memblock: add kernel-doc comments for memblock_add[_node] Mike Rapoport
2018-06-30 14:55 ` [PATCH v2 09/11] docs/mm: memblock: add kernel-doc description for memblock types Mike Rapoport
2018-06-30 14:55 ` [PATCH v2 10/11] docs/mm: memblock: add overview documentation Mike Rapoport
2018-06-30 14:55 ` [PATCH v2 11/11] docs/mm: add description of boot time memory management Mike Rapoport
2018-07-03 12:23 ` Michal Hocko
2018-07-12 7:26 ` Mike Rapoport
2018-07-01 15:26 ` [PATCH v2 00/11] docs/mm: add boot time memory management docs Randy Dunlap
2018-07-02 17:32 ` Jonathan Corbet
2018-07-18 11:47 ` Mike Rapoport
2018-07-18 12:02 ` Jonathan Corbet
2018-07-18 17:00 ` Mike Rapoport
2018-07-26 21:45 ` Jonathan Corbet
2018-08-02 18:36 ` Jonathan Corbet
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