Thx Christoph, On Wed, Aug 21, 2019 at 10:16 AM Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > > +/* > > + * We need to ensure that shared mappings are correctly aligned to > > + * avoid aliasing issues with VIPT caches. We need to ensure that > > + * a specific page of an object is always mapped at a multiple of > > + * SHMLBA bytes. > > + * > > + * We unconditionally provide this function for all cases. > > + */ > > On something unrelated: If csky has virtually indexed caches you also > need to implement the flush_kernel_vmap_range and > invalidate_kernel_vmap_range functions to avoid data corruption when > doing I/O on vmalloc/vmap ranges. I'll give another patch for this issue -- Best Regards Guo Ren ML: https://lore.kernel.org/linux-csky/
