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| author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-05-10 13:19:23 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-05-10 13:19:23 +0200 |
| commit | 71db1cd7ff4ea3b525ae7d9c97633ea281b7d981 (patch) | |
| tree | 53ff3b8ecfc2869ec919e3423d69e07ddfaddd9a /mm/mmap.c | |
| parent | media: dvbsky: use just one mutex for serializing device R/W ops (diff) | |
| parent | Linux 4.17-rc4 (diff) | |
| download | linux-71db1cd7ff4ea3b525ae7d9c97633ea281b7d981.tar.xz linux-71db1cd7ff4ea3b525ae7d9c97633ea281b7d981.zip | |
Merge tag 'v4.17-rc4' into patchwork
Linux 4.17-rc4
* tag 'v4.17-rc4': (920 commits)
Linux 4.17-rc4
KVM: x86: remove APIC Timer periodic/oneshot spikes
genksyms: fix typo in parse.tab.{c,h} generation rules
kbuild: replace hardcoded bison in cmd_bison_h with $(YACC)
gcc-plugins: fix build condition of SANCOV plugin
MAINTAINERS: Update Kbuild entry with a few paths
Revert "usb: host: ehci: Use dma_pool_zalloc()"
platform/x86: Kconfig: Fix dell-laptop dependency chain.
platform/x86: asus-wireless: Fix NULL pointer dereference
arm64: vgic-v2: Fix proxying of cpuif access
KVM: arm/arm64: vgic_init: Cleanup reference to process_maintenance
KVM: arm64: Fix order of vcpu_write_sys_reg() arguments
MAINTAINERS & files: Canonize the e-mails I use at files
media: imx-media-csi: Fix inconsistent IS_ERR and PTR_ERR
tools: power/acpi, revert to LD = gcc
bdi: Fix oops in wb_workfn()
RDMA/cma: Do not query GID during QP state transition to RTR
IB/mlx4: Fix integer overflow when calculating optimal MTT size
IB/hfi1: Fix memory leak in exception path in get_irq_affinity()
IB/{hfi1, rdmavt}: Fix memory leak in hfi1_alloc_devdata() upon failure
...
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index 188f195883b9..9d5968d1e8e3 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -100,11 +100,20 @@ pgprot_t protection_map[16] __ro_after_init = { __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111 }; +#ifndef CONFIG_ARCH_HAS_FILTER_PGPROT +static inline pgprot_t arch_filter_pgprot(pgprot_t prot) +{ + return prot; +} +#endif + pgprot_t vm_get_page_prot(unsigned long vm_flags) { - return __pgprot(pgprot_val(protection_map[vm_flags & + pgprot_t ret = __pgprot(pgprot_val(protection_map[vm_flags & (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) | pgprot_val(arch_vm_get_page_prot(vm_flags))); + + return arch_filter_pgprot(ret); } EXPORT_SYMBOL(vm_get_page_prot); |