mm: shmem: avoid allocating huge pages larger than MAX_PAGECACHE_ORDER for shmem

Similar to commit d659b715e94ac ("mm/huge_memory: avoid PMD-size page
cache if needed"), ARM64 can support 512MB PMD-sized THP when the base
page size is 64KB, which is larger than the maximum supported page cache
size MAX_PAGECACHE_ORDER.

This is not expected.  To fix this issue, use THP_ORDERS_ALL_FILE_DEFAULT
for shmem to filter allowable huge orders.

[[email protected]: remove comment, per Barry]
  Link: https://lkml.kernel.org/r/[email protected]
[[email protected]: remove local `orders']
  Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/117121665254442c3c7f585248296495e5e2b45c.1722404078.git.baolin.wang@linux.alibaba.com
Fixes: e7a2ab7b3bb5 ("mm: shmem: add mTHP support for anonymous shmem")
Signed-off-by: Baolin Wang <[email protected]>
Signed-off-by: Kefeng Wang <[email protected]>
Reviewed-by: Barry Song <[email protected]>
Cc: Barry Song <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Gavin Shan <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Lance Yang <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Ryan Roberts <[email protected]>
Cc: Zi Yan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions