m68k/mm: use __ClearPageReserved()

The PG_reserved flag is cleared from memory that is part of the kernel
image (and therefore marked as PG_reserved).  Avoid using PG_reserved
directly.

Link: http://lkml.kernel.org/r/20190114125903.24845-6-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/m68k/mm/memory.c b/arch/m68k/mm/memory.c
index b86a2e2..227c04f 100644 (file)
--- a/arch/m68k/mm/memory.c
+++ b/arch/m68k/mm/memory.c
@@ -51,7 +51,7 @@ void __init init_pointer_table(unsigned long ptable)
        pr_debug("init_pointer_table: %lx, %x\n", ptable, PD_MARKBITS(dp));
 
        /* unreserve the page so it's possible to free that page */
-       PD_PAGE(dp)->flags &= ~(1 << PG_reserved);
+       __ClearPageReserved(PD_PAGE(dp));
        init_page_count(PD_PAGE(dp));
 
        return;