forked from luck/tmp_suning_uos_patched
9ba4ace39f
The "is_exec" branch of the protection check in do_page_fault() didn't do anything on 32-bit PowerPC. So if a userland program jumps to a page with Linux protection flags "---p", all the tests happily fall through, and handle_mm_fault() is called, which in turn calls handle_pte_fault(), which calls update_mmu_cache(), which goes flush the dcache to a page with no access rights. Boom. This fixes it. Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Paul Mackerras <paulus@samba.org> |
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.. | ||
4xx_mmu.c | ||
44x_mmu.c | ||
fault.c | ||
fsl_booke_mmu.c | ||
hash_low_32.S | ||
hash_low_64.S | ||
hash_native_64.c | ||
hash_utils_64.c | ||
hugetlbpage.c | ||
imalloc.c | ||
init_32.c | ||
init_64.c | ||
lmb.c | ||
Makefile | ||
mem.c | ||
mmap.c | ||
mmu_context_32.c | ||
mmu_context_64.c | ||
mmu_decl.h | ||
numa.c | ||
pgtable_32.c | ||
pgtable_64.c | ||
ppc_mmu_32.c | ||
slb_low.S | ||
slb.c | ||
slice.c | ||
stab.c | ||
tlb_32.c | ||
tlb_64.c |