> No ... that was the point of flush_kernel_dcache_page(). The page in > question is page cache backed and contains user mappings. However, the > block layer has already done a flush_dcache_page() in get_user_pages() > and the user shouldn't be touching memory under I/O (unless they want > self induced aliasing problems) so we're free to assume all the user > cachelines are purged, hence all we have to do is flush the kernel alias > to bring the page up to date and make the users see it correctly. The block layer will have done that even in the swap-out path ? (Just asking... I'm not very familiar with the block layer) Ben. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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