NeilBrown <neilb@xxxxxxx> wrote: > > + paddr = kmap_atomic(page, KM_USER0); > + memset(paddr + offset, 0xff, > PAGE_SIZE - offset); This page which is being altered is a user-visible one, no? A pagecache page? We must always run flush_dcache_page() against a page when the kernel modifies a user-visible page's contents. Otherwise, on some architectures, the modification won't be visible at the different virtual address. - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
