diff options
| author | Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> | 2013-09-11 14:22:06 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-11 15:57:48 -0700 |
| commit | 74060e4d78795c7c43805133cb717d82533d4e0d (patch) | |
| tree | 923febdc5b4565fbbcf05387d7cc423c72648695 /mm/mempolicy.c | |
| parent | e632a938d914d271bec26e570d36c755a1e35e4c (diff) | |
| download | lwn-74060e4d78795c7c43805133cb717d82533d4e0d.tar.gz lwn-74060e4d78795c7c43805133cb717d82533d4e0d.zip | |
mm: mbind: add hugepage migration code to mbind()
Extend do_mbind() to handle vma with VM_HUGETLB set. We will be able to
migrate hugepage with mbind(2) after applying the enablement patch which
comes later in this series.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Acked-by: Hillf Danton <dhillf@gmail.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Rik van Riel <riel@redhat.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mempolicy.c')
| -rw-r--r-- | mm/mempolicy.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 4626be621e74..c7c359213ae1 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1192,6 +1192,8 @@ static struct page *new_vma_page(struct page *page, unsigned long private, int * vma = vma->vm_next; } + if (PageHuge(page)) + return alloc_huge_page_noerr(vma, address, 1); /* * if !vma, alloc_page_vma() will use task or system default policy */ @@ -1302,7 +1304,7 @@ static long do_mbind(unsigned long start, unsigned long len, (unsigned long)vma, MIGRATE_SYNC, MR_MEMPOLICY_MBIND); if (nr_failed) - putback_lru_pages(&pagelist); + putback_movable_pages(&pagelist); } if (nr_failed && (flags & MPOL_MF_STRICT)) |