Re: [PATCH 01/10] migrate: add migrate_entry_wait_huge()

From: Rik van Riel
Date: Sat Mar 23 2013 - 11:56:29 EST

On 03/22/2013 04:23 PM, Naoya Horiguchi wrote:
When we have a page fault for the address which is backed by a hugepage
under migration, the kernel can't wait correctly until the migration
finishes. This is because pte_offset_map_lock() can't get a correct
migration entry for hugepage. This patch adds migration_entry_wait_huge()
to separate code path between normal pages and hugepages.

ChangeLog v2:
- remove dup in migrate_entry_wait_huge()

Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>

Reviewed-by: Rik van Riel <riel@xxxxxxxxxx>

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