On Mon, 2 Mar 2015, Vlastimil Babka wrote:

quoted

quoted

quoted

You are thinking about an opportunistic allocation attempt in SLAB?

AFAICT SLAB allocations should trigger reclaim.

Well, let me quote your commit 952f3b51beb5:

This was about global reclaim. Local reclaim is good and that can be
done via zone_reclaim.

Right, so the patch is a functional change for zone_reclaim_mode == 1, where
!__GFP_WAIT will prevent it.

My patch is not a functional change, get_page_from_freelist() handles 
zone_reclaim_mode == 1 properly in the page allocator fastpath.  This 
patch only touches the slowpath.

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>