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57319d80e1
We have chosen to perform the allocation of bounds tables in kernel (See the patch "on-demand kernel allocation of bounds tables") and to mark these VMAs with VM_MPX. However, there is currently no suitable interface to actually do this. Existing interfaces, like do_mmap_pgoff(), have no way to set a modified ->vm_ops or ->vm_flags and don't hold mmap_sem long enough to let a caller do it. This patch wraps mmap_region() and hold mmap_sem long enough to make the modifications to the VMA which we need. Also note the 32/64-bit #ifdef in the header. We actually need to do this at runtime eventually. But, for now, we don't support running 32-bit binaries on 64-bit kernels. Support for this will come in later patches. Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: linux-mm@kvack.org Cc: linux-mips@linux-mips.org Cc: Dave Hansen <dave@sr71.net> Link: http://lkml.kernel.org/r/20141114151827.CE440F67@viggo.jf.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
35 lines
1008 B
Makefile
35 lines
1008 B
Makefile
obj-y := init.o init_$(BITS).o fault.o ioremap.o extable.o pageattr.o mmap.o \
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pat.o pgtable.o physaddr.o gup.o setup_nx.o
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# Make sure __phys_addr has no stackprotector
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nostackp := $(call cc-option, -fno-stack-protector)
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CFLAGS_physaddr.o := $(nostackp)
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CFLAGS_setup_nx.o := $(nostackp)
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CFLAGS_fault.o := -I$(src)/../include/asm/trace
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obj-$(CONFIG_X86_PAT) += pat_rbtree.o
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obj-$(CONFIG_SMP) += tlb.o
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obj-$(CONFIG_X86_32) += pgtable_32.o iomap_32.o
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obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
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obj-$(CONFIG_X86_PTDUMP) += dump_pagetables.o
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obj-$(CONFIG_HIGHMEM) += highmem_32.o
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obj-$(CONFIG_KMEMCHECK) += kmemcheck/
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obj-$(CONFIG_MMIOTRACE) += mmiotrace.o
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mmiotrace-y := kmmio.o pf_in.o mmio-mod.o
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obj-$(CONFIG_MMIOTRACE_TEST) += testmmiotrace.o
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obj-$(CONFIG_NUMA) += numa.o numa_$(BITS).o
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obj-$(CONFIG_AMD_NUMA) += amdtopology.o
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obj-$(CONFIG_ACPI_NUMA) += srat.o
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obj-$(CONFIG_NUMA_EMU) += numa_emulation.o
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obj-$(CONFIG_MEMTEST) += memtest.o
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obj-$(CONFIG_X86_INTEL_MPX) += mpx.o
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