This whole function is... interesting. Change the wakeup call to the flusher threads to pass in nr_pages == 0, instead of some random number of pages. This matches more closely what similar cases do for memory shortage/reclaim.
Acked-by: Johannes Weiner <[email protected]> Tested-by: Chris Mason <[email protected]> Reviewed-by: Jan Kara <[email protected]> Signed-off-by: Jens Axboe <[email protected]> --- fs/buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/buffer.c b/fs/buffer.c index 170df856bdb9..9471a445e370 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -260,7 +260,7 @@ static void free_more_memory(void) struct zoneref *z; int nid; - wakeup_flusher_threads(1024, WB_REASON_FREE_MORE_MEM); + wakeup_flusher_threads(0, WB_REASON_FREE_MORE_MEM); yield(); for_each_online_node(nid) { -- 2.7.4
