> -----Original Message----- > From: Benjamin Herrenschmidt [mailto:b...@kernel.crashing.org] > Sent: Sunday, June 09, 2013 3:46 PM > To: Wang Dongsheng-B40534 > Cc: johan...@sipsolutions.net; an...@enomsg.org; Wood Scott-B07421; > ga...@kernel.crashing.org; linuxppc-dev@lists.ozlabs.org > Subject: Re: [PATCH v2 2/2] powerpc/hibernate: PPC64 fix user threads > access to kernel space > > On Sun, 2013-06-09 at 07:44 +0000, Wang Dongsheng-B40534 wrote: > > So we just need set set_context() in restore_mmu_context(). > > > > void restore_mmu_context(struct mm_struct *next) { > > set_context(next->context.id, next->pgd); } > > We probably also want to flush the TLB, just in case the boot kernel has > left "something" there (though I wouldn't expect it to have run userspace > it's not completely impossible). > Yes, but TLB has already invalidated. See my other patch: http://patchwork.ozlabs.org/patch/250006/
> Cheers, > Ben. > > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
