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| author | Tejun Heo <tj@kernel.org> | 2015-05-22 18:23:22 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-06-02 08:38:12 -0600 |
| commit | dcc25ae76eb7b8ff883eaaab57e30e8f2f085be3 (patch) | |
| tree | 7fb1d01278ad2b16a1c21ead3e567a3bb7d00c25 /fs/fs-writeback.c | |
| parent | 380c27ca33ebecc9da35aa90c8b3a9154f90aac2 (diff) | |
| download | lwn-dcc25ae76eb7b8ff883eaaab57e30e8f2f085be3.tar.gz lwn-dcc25ae76eb7b8ff883eaaab57e30e8f2f085be3.zip | |
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 <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jan Kara <jack@suse.cz>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Greg Thelen <gthelen@google.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs/fs-writeback.c')
| -rw-r--r-- | fs/fs-writeback.c | 2 |
1 files changed, 1 insertions, 1 deletions
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); |