mm: temporarily mark THP broken

Up to this point we tried to keep patchset bisectable, but next patches
are going to change how core of THP refcounting work.

It would be beneficial to split the change into several patches and make
it more reviewable.  Unfortunately, I don't see how we can achieve that
while keeping THP working.

Let's hide THP under CONFIG_BROKEN for now and bring it back when new
refcounting get established.

Signed-off-by: Kirill A. Shutemov <[email protected]>
Tested-by: Sasha Levin <[email protected]>
Tested-by: Aneesh Kumar K.V <[email protected]>
Acked-by: Jerome Marchand <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Naoya Horiguchi <[email protected]>
Cc: Steve Capper <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Christoph Lameter <[email protected]>
Cc: David Rientjes <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/mm/Kconfig b/mm/Kconfig
index 97a4e06b15c00dfd7f8b8bc0f1e1e4610b769938..7c5f6ec6538748a7f4af068cfd66c86d9281a016 100644 (file)
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -392,7 +392,7 @@ config NOMMU_INITIAL_TRIM_EXCESS
 
 config TRANSPARENT_HUGEPAGE
        bool "Transparent Hugepage Support"
-       depends on HAVE_ARCH_TRANSPARENT_HUGEPAGE
+       depends on HAVE_ARCH_TRANSPARENT_HUGEPAGE && BROKEN
        select COMPACTION
        help
          Transparent Hugepages allows the kernel to use huge pages and