-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 01/05/2015 03:56 AM, Vlastimil Babka wrote: > Kswapd in balance_pgdate() currently uses wake_up() on processes > waiting in throttle_direct_reclaim(), which only wakes up a single > process. This might leave processes waiting for longer than > necessary, until the check is reached in the next loop iteration. > Processes might also be left waiting if zone was fully balanced in > single iteration. Note that the comment in balance_pgdat() also > says "Wake them", so waking up a single process does not seem > intentional. > > Thus, replace wake_up() with wake_up_all(). > > Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx> Cc: Mel Gorman > <mgorman@xxxxxxx> Cc: Johannes Weiner <hannes@xxxxxxxxxxx> Cc: > Michal Hocko <mhocko@xxxxxxx> Cc: Vladimir Davydov > <vdavydov@xxxxxxxxxxxxx> Cc: Rik van Riel <riel@xxxxxxxxxx> Acked-by: Rik van Riel <riel@xxxxxxxxxx> - -- All rights reversed -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJUq08+AAoJEM553pKExN6D9bEIAKV916k0OguiyAGIXrgjPrba 3W2eQ2FFWIm6KwumPas7t6jBzR11yFhpAIACf6nNt12EmH73UwaW2z6vdYque4c+ HU79DXTNTQ91xJfXI8XfNsZW/s8zpCZ+Sm08N7/O7k6c76yKR+owXmoSnjb2Q4N9 O0F0db3Jkd52sH/2l+LCUKrTeI9fRBrKnpAv7FAhZ5go8N7tdtIjYv8hhpIZ/83F WSRsORt0VKOx0an+JO09e5f6R+RF7RAqiU6yUdDAk52CJzyRqECksLxDOvw81OHD QUT5TuMVNoqXNJxFpQvyI8Dn82d1CiisX2Wztcic4OlxPJQ6gK04SmeWMXw8Ijw= =pnD6 -----END PGP SIGNATURE----- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>