On Wed, Sep 30, 2020 at 3:19 AM Jann Horn <jannh@xxxxxxxxxx> wrote: > To be safe against concurrent changes to the VMA tree, we must take the > mmap lock around GUP operations (excluding the GUP-fast family of > operations, which will take the mmap lock by themselves if necessary). (Sorry, my mail setup messed up the In-Reply-To headers, so you may not see the patches threaded properly... let me know if you want me to resend.)
