From: Thomas Bogendoerfer tsbogend@alpha.franken.de
[ Upstream commit 724d554a117a0552c2c982f0b5cd1d685274d678 ]
MIPS protection bits are setup during runtime so using defines like PAGE_READONLY ignores these runtime changes. To fix this we simply use the page protection of the setup vma.
Signed-off-by: Thomas Bogendoerfer tsbogend@alpha.franken.de Signed-off-by: Sasha Levin sashal@kernel.org --- arch/mips/kernel/vdso.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c index bc35f8499111b..cea83d2866e34 100644 --- a/arch/mips/kernel/vdso.c +++ b/arch/mips/kernel/vdso.c @@ -157,7 +157,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) gic_pfn = virt_to_phys(mips_gic_base + MIPS_GIC_USER_OFS) >> PAGE_SHIFT;
ret = io_remap_pfn_range(vma, base, gic_pfn, gic_size, - pgprot_noncached(PAGE_READONLY)); + pgprot_noncached(vma->vm_page_prot)); if (ret) goto out; } @@ -165,7 +165,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) /* Map data page. */ ret = remap_pfn_range(vma, data_addr, virt_to_phys(vdso_data) >> PAGE_SHIFT, - PAGE_SIZE, PAGE_READONLY); + PAGE_SIZE, vma->vm_page_prot); if (ret) goto out;