[PATCH 3.4 029/172] mm/hugetlb: add migration entry check in __unmap_hugepage_range

2015-06-16 Thread lizf
From: Naoya Horiguchi 3.4.108-rc1 review patch. If anyone has any objections, please let me know. -- commit 9fbc1f635fd0bd28cb32550211bf095753ac637a upstream. If __unmap_hugepage_range() tries to unmap the address range over which hugepage migration is on the way, we get the

[PATCH 3.4 029/172] mm/hugetlb: add migration entry check in __unmap_hugepage_range

2015-06-16 Thread lizf
From: Naoya Horiguchi n-horigu...@ah.jp.nec.com 3.4.108-rc1 review patch. If anyone has any objections, please let me know. -- commit 9fbc1f635fd0bd28cb32550211bf095753ac637a upstream. If __unmap_hugepage_range() tries to unmap the address range over which hugepage migration