On Thu, Dec 29, 2011 at 01:39:05PM +0100, Marek Szyprowski wrote:
From: Michal Nazarewicz mina86@mina86.com
- /* Make sure all pages are isolated. */
- if (!ret) {
lru_add_drain_all();
drain_all_pages();
if (WARN_ON(test_pages_isolated(start, end)))
ret = -EBUSY;
- }
On Tue, 10 Jan 2012 15:16:13 +0100, Mel Gorman mel@csn.ul.ie wrote:
Another global IPI seems overkill. Drain pages only from the local CPU (drain_pages(get_cpu()); put_cpu()) and test if the pages are isolated.
Is get_cpu() + put_cpu() required? Won't drain_local_pages() work?