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The x86 MPX patch set calls arch_unmap() and arch_bprm_mm_init() from fs/exec.c, so we need at least a stub for them in all architectures. They are only called under an #ifdef for CONFIG_MMU=y, so we can at least restict this to architectures with MMU support. blackfin/c6x have no MMU support, so do not call arch_unmap(). They also do not include mm_hooks.h or mmu_context.h at all and do not need to be touched. s390, um and unicore32 do not use asm-generic/mm_hooks.h, so got their own arch_unmap() versions. (I also moved um's arch_dup_mmap() to be closer to the other mm_hooks.h functions). xtensa only includes mm_hooks when MMU=y, which should be fine since arch_unmap() is called only from MMU=y code. For the rest, we use the stub copies of these functions in asm-generic/mm_hook.h. I cross compiled defconfigs for cris (to check NOMMU) and s390 to make sure that this works. I also checked a 64-bit build of UML and all my normal x86 builds including PARAVIRT on and off. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: Dave Hansen <dave@sr71.net> Cc: linux-arch@vger.kernel.org Cc: x86@kernel.org Link: http://lkml.kernel.org/r/20141118182350.8B4AA2C2@viggo.jf.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
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| .. | ||
| a.out-core.h | ||
| bugs.h | ||
| cache.h | ||
| common.lds.S | ||
| dma.h | ||
| fixmap.h | ||
| irq.h | ||
| irqflags.h | ||
| Kbuild | ||
| kmap_types.h | ||
| kvm_para.h | ||
| mmu_context.h | ||
| mmu.h | ||
| page.h | ||
| pgalloc.h | ||
| pgtable-2level.h | ||
| pgtable-3level.h | ||
| pgtable.h | ||
| processor-generic.h | ||
| ptrace-generic.h | ||
| setup.h | ||
| smp.h | ||
| stacktrace.h | ||
| sysrq.h | ||
| thread_info.h | ||
| timex.h | ||
| tlb.h | ||
| tlbflush.h | ||
| uaccess.h | ||