---

yaml
---
r: 336257
b: refs/heads/master
c: 31f8d42
h: refs/heads/master
i:
  336255: 0b2052c
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ed23ec4f0a510528e0ffe415f9394107418ae854
+refs/heads/master: 31f8d42d44b48ba72b586ca03e810cbbd21ea16b

trunk/mm/page_alloc.c

@@ -2378,15 +2378,6 @@ bool gfp_pfmemalloc_allowed(gfp_t gfp_mask)
 	return !!(gfp_to_alloc_flags(gfp_mask) & ALLOC_NO_WATERMARKS);
 }
 
-/* Returns true if the allocation is likely for THP */
-static bool is_thp_alloc(gfp_t gfp_mask, unsigned int order)
-{
-	if (order == pageblock_order &&
-	    (gfp_mask & (__GFP_MOVABLE|__GFP_REPEAT)) == __GFP_MOVABLE)
-		return true;
-	return false;
-}
-
 static inline struct page *
 __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order,
 	struct zonelist *zonelist, enum zone_type high_zoneidx,
@@ -2425,9 +2416,7 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order,
 		goto nopage;
 
 restart:
-	/* The decision whether to wake kswapd for THP is made later */
-	if (!is_thp_alloc(gfp_mask, order))
-		wake_all_kswapd(order, zonelist, high_zoneidx,
+	wake_all_kswapd(order, zonelist, high_zoneidx,
 					zone_idx(preferred_zone));
 
 	/*
@@ -2498,21 +2487,15 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order,
 		goto got_pg;
 	sync_migration = true;
 
-	if (is_thp_alloc(gfp_mask, order)) {
-		/*
-		 * If compaction is deferred for high-order allocations, it is
-		 * because sync compaction recently failed. If this is the case
-		 * and the caller requested a movable allocation that does not
-		 * heavily disrupt the system then fail the allocation instead
-		 * of entering direct reclaim.
-		 */
-		if (deferred_compaction || contended_compaction)
-			goto nopage;
-
-		/* If process is willing to reclaim/compact then wake kswapd */
-		wake_all_kswapd(order, zonelist, high_zoneidx,
-					zone_idx(preferred_zone));
-	}
+	/*
+	 * If compaction is deferred for high-order allocations, it is because
+	 * sync compaction recently failed. In this is the case and the caller
+	 * requested a movable allocation that does not heavily disrupt the
+	 * system then fail the allocation instead of entering direct reclaim.
+	 */
+	if ((deferred_compaction || contended_compaction) &&
+	    (gfp_mask & (__GFP_MOVABLE|__GFP_REPEAT)) == __GFP_MOVABLE)
+		goto nopage;
 
 	/* Try direct reclaim and then allocating */
 	page = __alloc_pages_direct_reclaim(gfp_mask, order,