X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=mm%2Fpage-writeback.c;h=0e309cd1b5b9a2e2841a10205d7d91ad87083dc7;hb=66b77a7540e8c08e19d58657689269487e1349da;hp=d1960744f881d34fe3f1c3412d717db86b8e5478;hpb=a5d5a914770a81a1f775be2ee35b9fa8fd19d381;p=cascardo%2Flinux.git

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index d1960744f881..0e309cd1b5b9 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -754,21 +754,10 @@ static void balance_dirty_pages(struct address_space *mapping,
 		 * 200ms is typically more than enough to curb heavy dirtiers;
 		 * (b) the pause time limit makes the dirtiers more responsive.
 		 */
-		if (nr_dirty < dirty_thresh +
-			       dirty_thresh / DIRTY_MAXPAUSE_AREA &&
+		if (nr_dirty < dirty_thresh &&
+		    bdi_dirty < (task_bdi_thresh + bdi_thresh) / 2 &&
 		    time_after(jiffies, start_time + MAX_PAUSE))
 			break;
-		/*
-		 * pass-good area. When some bdi gets blocked (eg. NFS server
-		 * not responding), or write bandwidth dropped dramatically due
-		 * to concurrent reads, or dirty threshold suddenly dropped and
-		 * the dirty pages cannot be brought down anytime soon (eg. on
-		 * slow USB stick), at least let go of the good bdi's.
-		 */
-		if (nr_dirty < dirty_thresh +
-			       dirty_thresh / DIRTY_PASSGOOD_AREA &&
-		    bdi_dirty < bdi_thresh)
-			break;
 
 		/*
 		 * Increase the delay for each loop, up to our previous