From dcc25ae76eb7b8ff883eaaab57e30e8f2f085be3 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 22 May 2015 18:23:22 -0400 Subject: writeback: move global_dirty_limit into wb_domain This patch is a part of the series to define wb_domain which represents a domain that wb's (bdi_writeback's) belong to and are measured against each other in. This will enable IO backpressure propagation for cgroup writeback. global_dirty_limit exists to regulate the global dirty threshold which is a property of the wb_domain. This patch moves hard_dirty_limit, dirty_lock, and update_time into wb_domain. This is pure reorganization and doesn't introduce any behavioral changes. Signed-off-by: Tejun Heo Cc: Jens Axboe Cc: Jan Kara Cc: Wu Fengguang Cc: Greg Thelen Signed-off-by: Jens Axboe --- fs/fs-writeback.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/fs-writeback.c') diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index cd89484486f6..51c8a5b14cdf 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -887,7 +887,7 @@ static long writeback_chunk_size(struct bdi_writeback *wb, pages = LONG_MAX; else { pages = min(wb->avg_write_bandwidth / 2, - global_dirty_limit / DIRTY_SCOPE); + global_wb_domain.dirty_limit / DIRTY_SCOPE); pages = min(pages, work->nr_pages); pages = round_down(pages + MIN_WRITEBACK_PAGES, MIN_WRITEBACK_PAGES); -- cgit v1.2.3-58-ga151