On Mon, Sep 24, 2018 at 09:44:21PM -0700, Matthew Wilcox wrote: > On Mon, Sep 24, 2018 at 09:10:43PM -0700, Bart Van Assche wrote: > > On 9/24/18 8:28 PM, Matthew Wilcox wrote: > > > [ ... ] Because if we have to > > > round all allocations below 64 bytes up to 64 bytes, [ ... ] > > Have you noticed that in another e-mail in this thread it has been explained > > why it is not necessary on x86 to align buffers allocated by kmalloc() on a > > 64-byte boundary even if these buffers are used for DMA? > > Oh, so drivers which do this only break on !x86. Yes, that'll work > out great. It shouldn't break !x86 because ARCH_KMALLOC_MINALIGN handles that. Thanks, Ming
