mm: Extend gfp masking to the page allocator

The page allocator also needs the masking of gfp flags during boot,
so this moves it out of slab/slub and uses it with the page allocator
as well.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/init/main.c b/init/main.c
index 1a65fdd06318..09131ec090c1 100644
--- a/init/main.c
+++ b/init/main.c
@@ -642,6 +642,10 @@ asmlinkage void __init start_kernel(void)
                                  "enabled early\n");
         early_boot_irqs_on();
         local_irq_enable();
+
+        /* Interrupts are enabled now so all GFP allocations are safe. */
+        set_gfp_allowed_mask(__GFP_BITS_MASK);
+
         kmem_cache_init_late();
 
         /*