[RFC,5/7] m68k/mm: use __ClearPageReserved()

Message ID 20181205122851.5891-6-david@redhat.com
State New
Headers show
Series
  • mm: PG_reserved cleanups and documentation
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Context Check Description
snowpatch_ozlabs/checkpatch warning total: 0 errors, 0 warnings, 1 checks, 8 lines checked
snowpatch_ozlabs/apply_patch success next/apply_patch Successfully applied

Commit Message

David Hildenbrand Dec. 5, 2018, 12:28 p.m.
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.

Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 arch/m68k/mm/memory.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/arch/m68k/mm/memory.c b/arch/m68k/mm/memory.c
index b86a2e21693b..227c04fe60d2 100644
--- 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;