From: Baoquan He <bhe@redhat.com>
To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
dave.hansen@intel.com, pagupta@redhat.com
Cc: linux-mm@kvack.org, kirill.shutemov@linux.intel.com,
Baoquan He <bhe@redhat.com>
Subject: [PATCH v3 3/4] mm/sparse: Add a new parameter 'data_unit_size' for alloc_usemap_and_memmap
Date: Wed, 28 Feb 2018 11:26:56 +0800 [thread overview]
Message-ID: <20180228032657.32385-4-bhe@redhat.com> (raw)
In-Reply-To: <20180228032657.32385-1-bhe@redhat.com>
It's used to pass the size of map data unit into alloc_usemap_and_memmap,
and is preparation for next patch.
Signed-off-by: Baoquan He <bhe@redhat.com>
---
mm/sparse.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/mm/sparse.c b/mm/sparse.c
index 5769a0a79dc1..e1aa2f44530d 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -528,10 +528,12 @@ void __weak __meminit vmemmap_populate_print_last(void)
/**
* alloc_usemap_and_memmap - memory alloction for pageblock flags and vmemmap
* @map: usemap_map for pageblock flags or mmap_map for vmemmap
+ * @unit_size: size of map unit
*/
static void __init alloc_usemap_and_memmap(void (*alloc_func)
(void *, unsigned long, unsigned long,
- unsigned long, int), void *data)
+ unsigned long, int), void *data,
+ int data_unit_size)
{
unsigned long pnum;
unsigned long map_count;
@@ -608,7 +610,8 @@ void __init sparse_init(void)
if (!usemap_map)
panic("can not allocate usemap_map\n");
alloc_usemap_and_memmap(sparse_early_usemaps_alloc_node,
- (void *)usemap_map);
+ (void *)usemap_map,
+ sizeof(usemap_map[0]));
#ifdef CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER
size2 = sizeof(struct page *) * NR_MEM_SECTIONS;
@@ -616,7 +619,8 @@ void __init sparse_init(void)
if (!map_map)
panic("can not allocate map_map\n");
alloc_usemap_and_memmap(sparse_early_mem_maps_alloc_node,
- (void *)map_map);
+ (void *)map_map,
+ sizeof(map_map[0]));
#endif
for_each_present_section_nr(0, pnum) {
--
2.13.6
next prev parent reply other threads:[~2018-02-28 3:27 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-28 3:26 [PATCH v3 0/4] mm/sparse: Optimize memmap allocation during sparse_init() Baoquan He
2018-02-28 3:26 ` [PATCH v3 1/4] mm/sparse: Add a static variable nr_present_sections Baoquan He
2018-02-28 3:26 ` [PATCH v3 2/4] mm/sparsemem: Defer the ms->section_mem_map clearing Baoquan He
2018-04-06 14:23 ` Dave Hansen
2018-04-08 6:50 ` Baoquan He
2018-04-09 16:02 ` Dave Hansen
2018-04-10 0:26 ` Baoquan He
2018-02-28 3:26 ` Baoquan He [this message]
2018-02-28 3:26 ` [PATCH v3 4/4] mm/sparse: Optimize memmap allocation during sparse_init() Baoquan He
2018-04-06 14:50 ` Dave Hansen
2018-04-08 8:20 ` Baoquan He
2018-04-09 2:07 ` Baoquan He
2018-04-11 15:48 ` Dave Hansen
2018-04-15 2:19 ` Baoquan He
2018-04-16 4:36 ` Dave Hansen
2018-04-05 22:08 ` [PATCH v3 0/4] " Andrew Morton
2018-04-06 11:05 ` Kirill A. Shutemov
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