On Tue, Dec 30, 2014 at 12:48 PM, Joonsoo Kim <iamjoonsoo....@lge.com> wrote: > On Thu, Dec 25, 2014 at 05:43:26PM +0800, Hui Zhu wrote: >> In Joonsoo's CMA patch "CMA: always treat free cma pages as non-free on >> watermark checking" [1], it changes __zone_watermark_ok to substruct CMA >> pages number from free_pages if system use CMA: >> if (IS_ENABLED(CONFIG_CMA) && z->managed_cma_pages) >> free_pages -= zone_page_state(z, NR_FREE_CMA_PAGES); > > Hello, > > In fact, without that patch, watermark checking has a problem in current > kernel. > If there is reserved CMA region, watermark check for high order > allocation is done loosly. See following thread. > > https://lkml.org/lkml/2014/5/30/320 > > Your patch can fix this situation, so, how about submitting this patch > separately? > > Thanks. >
Hi Joonsoo, Thanks for your remind. I will post a separate patch for current kernel. Thanks, Hui -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
