From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
To: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/4] MIPS: vdso: Use vma page protection for remapping
Date: Fri, 13 Nov 2020 12:09:49 +0100 [thread overview]
Message-ID: <20201113110952.68086-1-tsbogend@alpha.franken.de> (raw)
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>
---
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 242dc5e83847..7d0b91ad2581 100644
--- a/arch/mips/kernel/vdso.c
+++ b/arch/mips/kernel/vdso.c
@@ -161,7 +161,7 @@ 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;
}
@@ -169,7 +169,7 @@ 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;
--
2.16.4
next reply other threads:[~2020-11-13 11:12 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-13 11:09 Thomas Bogendoerfer [this message]
2020-11-13 11:09 ` [PATCH 2/4] MIPS: kvm: Use vm_get_page_prot to get protection bits Thomas Bogendoerfer
2020-11-14 7:34 ` Huacai Chen
2020-11-16 12:30 ` Thomas Bogendoerfer
2020-11-17 1:18 ` Huacai Chen
2020-11-17 10:40 ` Thomas Bogendoerfer
2020-11-19 12:54 ` Thomas Bogendoerfer
2020-11-13 11:09 ` [PATCH 3/4] MIPS: mm: shorten lines by using macro Thomas Bogendoerfer
2020-11-19 12:54 ` Thomas Bogendoerfer
2020-11-13 11:09 ` [PATCH 4/4] MIPS: mm: Clean up setup of protection map Thomas Bogendoerfer
2020-11-19 12:54 ` Thomas Bogendoerfer
2020-12-12 16:29 ` Guenter Roeck
2020-12-14 15:32 ` Thomas Bogendoerfer
2020-11-19 12:53 ` [PATCH 1/4] MIPS: vdso: Use vma page protection for remapping Thomas Bogendoerfer
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