On Fri, Mar 15, 2013 at 10:34:17AM +0800, Wanpeng Li wrote: > Compression of zero-filled pages can unneccessarily cause internal > fragmentation, and thus waste memory. This special case can be > optimized. > > This patch captures zero-filled pages, and marks their corresponding > zcache backing page entry as zero-filled. Whenever such zero-filled > page is retrieved, we fill the page frame with zero. > > Acked-by: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx> > Signed-off-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx> This patch applies with a bunch of fuzz, meaning it wasn't made against the latest tree, which worries me. Care to redo it, and the rest of the series, and resend it? thanks, greg k-h -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>