> If you plan to keep wakeup_flusher_threads(), a simpler form may be > sufficient, eg. > > laptop_mode ? 0 : (nr_dirty * 16) This number is not sensitive because the writeback code may well round it up to some more IO efficient value (currently 4MB). AFAIK the nr_pages parameters passed by all existing flusher callers are some rule-of-thumb value, and far from being an exact number. Thanks, Fengguang -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>