diff options
| author | Tang Chen <tangchen@cn.fujitsu.com> | 2013-02-22 16:33:08 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-23 17:50:12 -0800 |
| commit | 0197518cd3672029618a16a57597946a094ac7a8 (patch) | |
| tree | 64785feea48812285b31d690a167c3c488c8017a /mm | |
| parent | bbcab8789d4a5b942773aa7496794ceebe2d3f78 (diff) | |
memory-hotplug: remove memmap of sparse-vmemmap
Introduce a new API vmemmap_free() to free and remove vmemmap
pagetables. Since pagetable implements are different, each architecture
has to provide its own version of vmemmap_free(), just like
vmemmap_populate().
Note: vmemmap_free() is not implemented for ia64, ppc, s390, and sparc.
[mhocko@suse.cz: fix implicit declaration of remove_pagetable]
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Wu Jianguo <wujianguo@huawei.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/sparse.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/sparse.c b/mm/sparse.c index 66f0fd9d796..46f6ea47d9a 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -615,10 +615,11 @@ static inline struct page *kmalloc_section_memmap(unsigned long pnum, int nid, } static void __kfree_section_memmap(struct page *memmap, unsigned long nr_pages) { - return; /* XXX: Not implemented yet */ + vmemmap_free(memmap, nr_pages); } static void free_map_bootmem(struct page *memmap, unsigned long nr_pages) { + vmemmap_free(memmap, nr_pages); } #else static struct page *__kmalloc_section_memmap(unsigned long nr_pages) |