On Tue, Mar 24, 2015 at 7:09 PM, Christoph Hellwig <h...@lst.de> wrote: > On Tue, Mar 24, 2015 at 06:49:00PM +0800, Ming Lei wrote: >> On 32bit system, this still may cause pressure on page allocation, since >> requests are handled concurrently now after using workqueue. > > kmap slots are from a much smaller resource pool than non-highmem > allocations, so if a page needs to stay kmaped from allocation time until > freeing it it should just be allocated as a kernel mapped page.
Yeah, that makes sense to use non-highmem. Thanks -- 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/
