Re: [PATCH 11/17] powerpc/nohash32: set GUARDED attribute in the PMD directly
From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2018-05-11 06:45:55
Also in:
lkml
Christophe Leroy [off-list ref] writes:
quoted hunk ↗ jump to hunk
diff --git a/arch/powerpc/mm/ioremap.c b/arch/powerpc/mm/ioremap.c index 59be5dfcb3e9..b8c347077e02 100644 --- a/arch/powerpc/mm/ioremap.c +++ b/arch/powerpc/mm/ioremap.c@@ -132,9 +132,14 @@ void __iomem * __ioremap_caller(phys_addr_t addr, unsigned long size, if (slab_is_available()) { struct vm_struct *area; - area = __get_vm_area_caller(size, VM_IOREMAP, - ioremap_bot, IOREMAP_END, - caller); + if (flags & _PAGE_GUARDED)
On 64-bit configs: arch/powerpc/mm/ioremap.c:135:15: error: '_PAGE_GUARDED' undeclared (first use in this function) cheers