On Thu, 2017-05-18 at 16:33 -0700, Qing Huang wrote: > This change will optimize kernel memory deregistration operations. > __ib_umem_release() used to call set_page_dirty_lock() against every > writable page in its memory region. Its purpose is to keep data > synced between CPU and DMA device when swapping happens after mem > deregistration ops. Now we choose not to set page dirty bit if it's > already set by kernel prior to calling __ib_umem_release(). This > reduces memory deregistration time by half or even more when we ran > application simulation test program. > > Signed-off-by: Qing Huang <qing.huang@xxxxxxxxxx> Thanks, applied. -- Doug Ledford <dledford@xxxxxxxxxx> GPG KeyID: B826A3330E572FDD Key fingerprint = AE6B 1BDA 122B 23B4 265B 1274 B826 A333 0E57 2FDD -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
