Files
archived-linux/include/linux
Michal Hocko 389c8178d0 hugetlb, mbind: fall back to default policy if vma is NULL
Dan Carpenter has noticed that mbind migration callback (new_page) can
get a NULL vma pointer and choke on it inside alloc_huge_page_vma which
relies on the VMA to get the hstate.  We used to BUG_ON this case but
the BUG_+ON has been removed recently by "hugetlb, mempolicy: fix the
mbind hugetlb migration".

The proper way to handle this is to get the hstate from the migrated
page and rely on huge_node (resp.  get_vma_policy) do the right thing
with null VMA.  We are currently falling back to the default mempolicy
in that case which is in line what THP path is doing here.

Link: http://lkml.kernel.org/r/20180110104712.GR1732@dhcp22.suse.cz
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-01-31 17:18:40 -08:00
..
2018-01-08 11:03:35 +00:00
2017-11-30 16:55:35 +00:00
2017-12-21 02:15:41 +01:00
2017-11-15 18:21:04 -08:00
2018-01-03 14:03:48 +01:00
2017-08-24 13:23:03 -07:00
2017-11-27 16:19:56 -05:00
2017-07-17 13:42:48 +02:00
2018-01-25 14:10:39 -08:00
2017-08-07 17:22:14 +02:00
2017-11-13 01:41:20 +01:00
2017-11-15 18:21:06 -08:00
2018-01-17 11:30:16 +00:00
2017-11-15 18:21:05 -08:00
2017-12-29 21:13:04 +01:00
2017-11-15 18:21:01 -08:00
2017-11-17 16:10:04 -08:00
2017-10-12 15:41:05 +02:00
2017-11-15 18:21:01 -08:00
2017-12-01 13:09:40 -08:00
2017-10-19 10:08:56 +02:00
2017-10-07 10:45:02 -06:00
2017-08-28 20:51:22 +02:00
2018-01-31 17:18:38 -08:00
2018-01-31 17:18:37 -08:00
2017-11-27 16:19:52 -05:00
2017-11-17 16:10:00 -08:00
2017-07-25 18:05:25 +02:00
2017-10-20 09:37:32 +02:00
2017-12-14 16:00:49 -08:00
2017-11-15 18:21:03 -08:00
2017-11-15 18:21:06 -08:00
2018-01-31 17:18:37 -08:00
2017-11-09 10:23:28 +01:00
2017-08-06 20:55:29 -07:00
2017-11-17 16:10:04 -08:00
2017-11-17 16:10:04 -08:00
2017-11-13 01:33:48 +01:00
2017-12-16 02:05:48 +01:00
2017-11-27 16:19:55 -05:00
2017-11-07 12:22:21 +01:00
2017-11-27 16:19:55 -05:00
2017-07-06 16:24:30 -07:00
2017-08-16 16:28:47 -07:00
2017-11-15 18:21:01 -08:00
2017-11-15 18:21:06 -08:00
2017-11-15 18:21:01 -08:00
2018-01-18 11:56:49 +01:00
2018-01-15 09:35:45 +01:00
2017-10-11 22:36:54 -04:00
2017-07-24 17:50:37 +02:00
2017-10-04 10:29:22 +02:00
2017-11-27 16:19:54 -05:00
2017-08-15 09:02:07 -07:00
2017-08-15 09:02:08 -07:00