Currently __GFP_NOFAIL allocations without any other flags can access 25% of the reserves but these requests imply that the system cannot make forward progress until the allocation succeeds. Allow __GFP_NOFAIL access to 75% of the min reserve. Signed-off-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> --- mm/page_alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 6f41b84a97ac..d2df78f5baa2 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5308,7 +5308,7 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, * could deplete whole memory reserves which would just make * the situation worse */ - page = __alloc_pages_cpuset_fallback(gfp_mask, order, ALLOC_HARDER, ac); + page = __alloc_pages_cpuset_fallback(gfp_mask, order, ALLOC_MIN_RESERVE|ALLOC_HARDER, ac); if (page) goto got_pg; -- 2.35.3
