Messages in this thread Patch in this message | | | Date | Wed, 20 Jun 2012 18:00:12 -0700 (PDT) | From | David Rientjes <> | Subject | [patch 3.5-rc3] mm, mempolicy: fix mbind() to do synchronous migration |
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If the range passed to mbind() is not allocated on nodes set in the nodemask, it migrates the pages to respect the constraint.
The final formal of migrate_pages() is a mode of type enum migrate_mode, not a boolean. do_mbind() is currently passing "true" which is the equivalent of MIGRATE_SYNC_LIGHT. This should instead be MIGRATE_SYNC for synchronous page migration.
Signed-off-by: David Rientjes <rientjes@google.com> --- mm/mempolicy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/mempolicy.c b/mm/mempolicy.c --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1177,7 +1177,7 @@ static long do_mbind(unsigned long start, unsigned long len, if (!list_empty(&pagelist)) { nr_failed = migrate_pages(&pagelist, new_vma_page, (unsigned long)vma, - false, true); + false, MIGRATE_SYNC); if (nr_failed) putback_lru_pages(&pagelist); }
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