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| author | Jens Axboe <axboe@fb.com> | 2016-09-01 10:20:33 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-11-08 08:28:55 -0700 |
| commit | b57d74aff9ab92fbfb7c197c384d1adfa2827b2e (patch) | |
| tree | ecb36de5f34865613c9eec3db3c0de034aaf7e33 /include/linux/backing-dev-defs.h | |
| parent | 8e1de26cd5db192b52819f5ee97bab308964f3ab (diff) | |
| download | blackbird-obmc-linux-b57d74aff9ab92fbfb7c197c384d1adfa2827b2e.tar.gz blackbird-obmc-linux-b57d74aff9ab92fbfb7c197c384d1adfa2827b2e.zip | |
writeback: track if we're sleeping on progress in balance_dirty_pages()
Note in the bdi_writeback structure whenever a task ends up sleeping
waiting for progress. We can use that information in the lower layers
to increase the priority of writes.
Signed-off-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'include/linux/backing-dev-defs.h')
| -rw-r--r-- | include/linux/backing-dev-defs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h index c357f27d5483..dc5f76d7f648 100644 --- a/include/linux/backing-dev-defs.h +++ b/include/linux/backing-dev-defs.h @@ -116,6 +116,8 @@ struct bdi_writeback { struct list_head work_list; struct delayed_work dwork; /* work item used for writeback */ + unsigned long dirty_sleep; /* last wait */ + struct list_head bdi_node; /* anchored at bdi->wb_list */ #ifdef CONFIG_CGROUP_WRITEBACK |
