On 06/06/17 09:25, Christoph Hellwig wrote: > On Tue, Jun 06, 2017 at 01:44:32PM +0900, Tetsuo Handa wrote: [..] >> As far as I know, not all CONFIG_MMU=y architectures provide >> set_memory_ro()/set_memory_rw(). You need to provide fallback for >> architectures which do not provide set_memory_ro()/set_memory_rw() >> or kernels built with CONFIG_MMU=n. > > I think we'll just need to generalize CONFIG_STRICT_MODULE_RWX and/or > ARCH_HAS_STRICT_MODULE_RWX so there is a symbol to key this off. Would STRICT_KERNEL_RWX work? It's already present. If both kernel text and rodata can be protected, so can pmalloc data. --- igor -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
