diff options
| author | Tang Chen <tangchen@cn.fujitsu.com> | 2013-02-07 12:26:29 +1100 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2013-02-14 15:25:20 +1100 |
| commit | 029f861bfe123c8667422d409bd055c15475d231 (patch) | |
| tree | 3dd316b5a80dff685c22f6639a1e268a48455eef /include/linux | |
| parent | 69c8f7fb5f0a7844bcc509542251422bc6465c42 (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.
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: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index d14f7d48edec..d87cef8d093f 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1720,6 +1720,7 @@ int vmemmap_populate_basepages(struct page *start_page, unsigned long pages, int node); int vmemmap_populate(struct page *start_page, unsigned long pages, int node); void vmemmap_populate_print_last(void); +void vmemmap_free(struct page *memmap, unsigned long nr_pages); void register_page_bootmem_memmap(unsigned long section_nr, struct page *map, unsigned long size); |