diff options
| author | Minchan Kim <minchan@kernel.org> | 2012-10-08 16:32:52 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 16:22:52 +0900 |
| commit | 723a0644a7255f532575fd43245f9ef976491328 (patch) | |
| tree | 1dfca4e804a7031889af36dbbf2a991637333680 /mm/page_isolation.c | |
| parent | 3f6d4caeb9a9d8f7e5bbf3f49f1fd71e1414ff64 (diff) | |
| download | lwn-723a0644a7255f532575fd43245f9ef976491328.tar.gz lwn-723a0644a7255f532575fd43245f9ef976491328.zip | |
mm/page_alloc: refactor out __alloc_contig_migrate_alloc()
__alloc_contig_migrate_alloc() can be used by memory-hotplug so refactor
it out (move + rename as a common name) into page_isolation.c.
[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_isolation.c')
| -rw-r--r-- | mm/page_isolation.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/page_isolation.c b/mm/page_isolation.c index 5f34a9053ce0..f2f5b4818e94 100644 --- a/mm/page_isolation.c +++ b/mm/page_isolation.c @@ -255,3 +255,14 @@ int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn) spin_unlock_irqrestore(&zone->lock, flags); return ret ? 0 : -EBUSY; } + +struct page *alloc_migrate_target(struct page *page, unsigned long private, + int **resultp) +{ + gfp_t gfp_mask = GFP_USER | __GFP_MOVABLE; + + if (PageHighMem(page)) + gfp_mask |= __GFP_HIGHMEM; + + return alloc_page(gfp_mask); +} |