On Thu, 2015-27-08 at 09:50:19 UTC, Ian Munsie wrote: > From: Ian Munsie <imun...@au1.ibm.com> > > The cxl user api uses the address_space associated with the file when we > need to force unmap all cxl mmap regions (e.g. on eeh, driver detach, > etc). Currently, contexts allocated through the kernel api do not do > this and instead skip the mmap invalidation, potentially allowing them > to poke at the hardware after such an event, which may cause all sorts > of trouble. > > This patch allocates an address_space for cxl contexts allocated through > the kernel api so that the same invalidate path will for these contexts > as well. We don't use the anonymous inode's address_space, as doing so > could invalidate any mmaps of completely unrelated drivers using > anonymous file descriptors. > > This patch also introduces a kernelapi flag, so we know when freeing the > context if the address_space was allocated by us and needs to be freed. > > Signed-off-by: Ian Munsie <imun...@au1.ibm.com>
Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/55e07668fbba9466e6a9ef76 cheers _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
