The patch titled
Subject: mm/sparse.c: add a new parameter 'data_unit_size' for alloc_usemap_and_memmap
has been added to the -mm tree. Its filename is
mm-sparse-add-a-new-parameter-data_unit_size-for-alloc_usemap_and_memmap.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-sparse-add-a-new-parameter-data_unit_size-for-alloc_usemap_and_memmap.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-sparse-add-a-new-parameter-data_unit_size-for-alloc_usemap_and_memmap.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Baoquan He <bhe@xxxxxxxxxx>
Subject: mm/sparse.c: add a new parameter 'data_unit_size' for alloc_usemap_and_memmap
It's used to pass the size of map data unit into alloc_usemap_and_memmap,
and is preparation for next patch.
Link: http://lkml.kernel.org/r/20180228032657.32385-4-bhe@xxxxxxxxxx
Signed-off-by: Baoquan He <bhe@xxxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Pankaj Gupta <pagupta@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/sparse.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff -puN mm/sparse.c~mm-sparse-add-a-new-parameter-data_unit_size-for-alloc_usemap_and_memmap mm/sparse.c
--- a/mm/sparse.c~mm-sparse-add-a-new-parameter-data_unit_size-for-alloc_usemap_and_memmap
+++ a/mm/sparse.c
@@ -528,10 +528,12 @@ void __weak __meminit vmemmap_populate_p
/**
* 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) {
_
Patches currently in -mm which might be from bhe@xxxxxxxxxx are
mm-sparse-add-a-static-variable-nr_present_sections.patch
mm-sparsemem-defer-the-ms-section_mem_map-clearing.patch
mm-sparse-add-a-new-parameter-data_unit_size-for-alloc_usemap_and_memmap.patch
mm-sparse-optimize-memmap-allocation-during-sparse_init.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
