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mm, hugetlb, soft_offline: use new_page_nodemask for soft offline migration 

new_page is yet another duplication of the migration callback which has
to handle hugetlb migration specially.  We can safely use the generic
new_page_nodemask for the same purpose.

Please note that gigantic hugetlb pages do not need any special handling
because alloc_huge_page_nodemask will make sure to check pages in all
per node pools.  The reason this was done previously was that
alloc_huge_page_node treated NO_NUMA_NODE and a specific node
differently and so alloc_huge_page_node(nid) would check on this
specific node.

Link: http://lkml.kernel.org/r/20170622193034.28972-4-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reported-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Tested-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Michal Hocko 2017-07-10 15:49:14 -07:00 committed by Linus Torvalds
parent 3e59fcb0e8
commit ef77ba5ce6
1 changed files with 1 additions and 9 deletions
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10
mm/memory-failure.c
View File

@ -1484,16 +1484,8 @@ EXPORT_SYMBOL(unpoison_memory);
static struct page *new_page(struct page *p, unsigned long private, int **x)
{
int nid = page_to_nid(p);
if (PageHuge(p)) {
struct hstate *hstate = page_hstate(compound_head(p));
if (hstate_is_gigantic(hstate))
return alloc_huge_page_node(hstate, NUMA_NO_NODE);
return alloc_huge_page_node(hstate, nid);
} else {
return __alloc_pages_node(nid, GFP_HIGHUSER_MOVABLE, 0);
}
return new_page_nodemask(p, nid, &node_states[N_MEMORY]);
}
/*