diff options
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 50 |
1 files changed, 36 insertions, 14 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 6d94d04..b4beb3e 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1377,7 +1377,7 @@ static void zlc_mark_zone_full(struct zonelist *zonelist, struct zoneref *z) * a page. */ static struct page * -get_page_from_freelist(gfp_t gfp_mask, unsigned int order, +get_page_from_freelist(gfp_t gfp_mask, nodemask_t *nodemask, unsigned int order, struct zonelist *zonelist, int high_zoneidx, int alloc_flags) { struct zoneref *z; @@ -1388,16 +1388,17 @@ get_page_from_freelist(gfp_t gfp_mask, unsigned int order, int zlc_active = 0; /* set if using zonelist_cache */ int did_zlc_setup = 0; /* just call zlc_setup() one time */ - z = first_zones_zonelist(zonelist, high_zoneidx); - classzone_idx = zonelist_zone_idx(z); - preferred_zone = zonelist_zone(z); + (void)first_zones_zonelist(zonelist, high_zoneidx, nodemask, + &preferred_zone); + classzone_idx = zone_idx(preferred_zone); zonelist_scan: /* * Scan zonelist, looking for a zone with enough free. * See also cpuset_zone_allowed() comment in kernel/cpuset.c. */ - for_each_zone_zonelist(zone, z, zonelist, high_zoneidx) { + for_each_zone_zonelist_nodemask(zone, z, zonelist, + high_zoneidx, nodemask) { if (NUMA_BUILD && zlc_active && !zlc_zone_worth_trying(zonelist, z, allowednodes)) continue; @@ -1447,9 +1448,9 @@ try_next_zone: /* * This is the 'heart' of the zoned buddy allocator. */ -struct page * -__alloc_pages(gfp_t gfp_mask, unsigned int order, - struct zonelist *zonelist) +static struct page * +__alloc_pages_internal(gfp_t gfp_mask, unsigned int order, + struct zonelist *zonelist, nodemask_t *nodemask) { const gfp_t wait = gfp_mask & __GFP_WAIT; enum zone_type high_zoneidx = gfp_zone(gfp_mask); @@ -1478,7 +1479,7 @@ restart: return NULL; } - page = get_page_from_freelist(gfp_mask|__GFP_HARDWALL, order, + page = get_page_from_freelist(gfp_mask|__GFP_HARDWALL, nodemask, order, zonelist, high_zoneidx, ALLOC_WMARK_LOW|ALLOC_CPUSET); if (page) goto got_pg; @@ -1523,7 +1524,7 @@ restart: * Ignore cpuset if GFP_ATOMIC (!wait) rather than fail alloc. * See also cpuset_zone_allowed() comment in kernel/cpuset.c. */ - page = get_page_from_freelist(gfp_mask, order, zonelist, + page = get_page_from_freelist(gfp_mask, nodemask, order, zonelist, high_zoneidx, alloc_flags); if (page) goto got_pg; @@ -1536,7 +1537,7 @@ rebalance: if (!(gfp_mask & __GFP_NOMEMALLOC)) { nofail_alloc: /* go through the zonelist yet again, ignoring mins */ - page = get_page_from_freelist(gfp_mask, order, + page = get_page_from_freelist(gfp_mask, nodemask, order, zonelist, high_zoneidx, ALLOC_NO_WATERMARKS); if (page) goto got_pg; @@ -1571,7 +1572,7 @@ nofail_alloc: drain_all_pages(); if (likely(did_some_progress)) { - page = get_page_from_freelist(gfp_mask, order, + page = get_page_from_freelist(gfp_mask, nodemask, order, zonelist, high_zoneidx, alloc_flags); if (page) goto got_pg; @@ -1587,8 +1588,9 @@ nofail_alloc: * a parallel oom killing, we must fail if we're still * under heavy pressure. */ - page = get_page_from_freelist(gfp_mask|__GFP_HARDWALL, order, - zonelist, high_zoneidx, ALLOC_WMARK_HIGH|ALLOC_CPUSET); + page = get_page_from_freelist(gfp_mask|__GFP_HARDWALL, nodemask, + order, zonelist, high_zoneidx, + ALLOC_WMARK_HIGH|ALLOC_CPUSET); if (page) { clear_zonelist_oom(zonelist, gfp_mask); goto got_pg; @@ -1637,6 +1639,20 @@ got_pg: return page; } +struct page * +__alloc_pages(gfp_t gfp_mask, unsigned int order, + struct zonelist *zonelist) +{ + return __alloc_pages_internal(gfp_mask, order, zonelist, NULL); +} + +struct page * +__alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order, + struct zonelist *zonelist, nodemask_t *nodemask) +{ + return __alloc_pages_internal(gfp_mask, order, zonelist, nodemask); +} + EXPORT_SYMBOL(__alloc_pages); /* @@ -1880,6 +1896,12 @@ void show_free_areas(void) show_swap_cache_info(); } +static void zoneref_set_zone(struct zone *zone, struct zoneref *zoneref) +{ + zoneref->zone = zone; + zoneref->zone_idx = zone_idx(zone); +} + /* * Builds allocation fallback zone lists. * |
