diff options
| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2009-06-12 10:33:53 +0300 |
|---|---|---|
| committer | Pekka Enberg <penberg@cs.helsinki.fi> | 2009-06-12 11:00:54 +0300 |
| commit | ca371c0d7e23d0d0afae65fc83a0e91cf7399573 (patch) | |
| tree | 20ca26fbdceefe25d1c362dc23a2152c1aac8b4c /init/main.c | |
| parent | 8ebf975608aaebd7feb33d77f07ba21a6380e086 (diff) | |
| download | lwn-ca371c0d7e23d0d0afae65fc83a0e91cf7399573.tar.gz lwn-ca371c0d7e23d0d0afae65fc83a0e91cf7399573.zip | |
memcg: fix page_cgroup fatal error in FLATMEM
Now, SLAB is configured in very early stage and it can be used in
init routine now.
But replacing alloc_bootmem() in FLAT/DISCONTIGMEM's page_cgroup()
initialization breaks the allocation, now.
(Works well in SPARSEMEM case...it supports MEMORY_HOTPLUG and
size of page_cgroup is in reasonable size (< 1 << MAX_ORDER.)
This patch revive FLATMEM+memory cgroup by using alloc_bootmem.
In future,
We stop to support FLATMEM (if no users) or rewrite codes for flatmem
completely.But this will adds more messy codes and overheads.
Reported-by: Li Zefan <lizf@cn.fujitsu.com>
Tested-by: Li Zefan <lizf@cn.fujitsu.com>
Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Diffstat (limited to 'init/main.c')
| -rw-r--r-- | init/main.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/init/main.c b/init/main.c index 5616661eac01..b3e8f14c568a 100644 --- a/init/main.c +++ b/init/main.c @@ -539,6 +539,11 @@ void __init __weak thread_info_cache_init(void) */ static void __init mm_init(void) { + /* + * page_cgroup requires countinous pages as memmap + * and it's bigger than MAX_ORDER unless SPARSEMEM. + */ + page_cgroup_init_flatmem(); mem_init(); kmem_cache_init(); vmalloc_init(); |