s390: get rid of superfluous __GFP_REPEAT
authorMichal Hocko <mhocko@suse.com>
Fri, 24 Jun 2016 21:49:17 +0000 (14:49 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 25 Jun 2016 00:23:52 +0000 (17:23 -0700)
__GFP_REPEAT has a rather weak semantic but since it has been introduced
around 2.6.12 it has been ignored for low order allocations.

page_table_alloc then uses the flag for a single page allocation.  This
means that this flag has never been actually useful here because it has
always been used only for PAGE_ALLOC_COSTLY requests.

Link: http://lkml.kernel.org/r/1464599699-30131-14-git-send-email-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/s390/mm/pgalloc.c

index e8b5962..e2565d2 100644 (file)
@@ -169,7 +169,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
                        return table;
        }
        /* Allocate a fresh page */
-       page = alloc_page(GFP_KERNEL|__GFP_REPEAT);
+       page = alloc_page(GFP_KERNEL);
        if (!page)
                return NULL;
        if (!pgtable_page_ctor(page)) {