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[PATCH] for_each_online_pgdat: for_each_bootmem

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Add a list_head to bootmem_data_t and make bootmems use it.  bootmem list is
sorted by node_boot_start.

Only nodes against which init_bootmem() is called are linked to the list.
(i386 allocates bootmem only from one node(0) not from all online nodes.)

A summary:
 1. for_each_online_pgdat() traverses all *online* nodes.
 2. alloc_bootmem() allocates memory only from initialized-for-bootmem nodes.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
KAMEZAWA Hiroyuki 2006-03-27 01:15:58 -08:00 • committed by Linus Torvalds
parent 8357f8695d
commit 679bc9fbb5
2 changed files with 30 additions and 10 deletions
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1
include/linux/bootmem.h
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@ -38,6 +38,7 @@ typedef struct bootmem_data {
unsigned long last_pos;
unsigned long last_success; /* Previous allocation point. To speed
* up searching */
struct list_head list;
} bootmem_data_t;
extern unsigned long __init bootmem_bootmap_pages (unsigned long);