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| author | Jan Kara <jack@suse.cz> | 2017-03-23 01:36:58 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-03-22 20:11:30 -0600 |
| commit | 4514451e79ae5baabb85d22ba3523602e59d5218 (patch) | |
| tree | 41e4e68dee3cd706fa2ceb026c27f9db6f5c78f7 /include/linux/backing-dev-defs.h | |
| parent | 5318ce7d46866e1dbc20ab9349b93753edba0b3e (diff) | |
| download | blackbird-obmc-linux-4514451e79ae5baabb85d22ba3523602e59d5218.tar.gz blackbird-obmc-linux-4514451e79ae5baabb85d22ba3523602e59d5218.zip | |
bdi: Do not wait for cgwbs release in bdi_unregister()
Currently we wait for all cgwbs to get released in cgwb_bdi_destroy()
(called from bdi_unregister()). That is however unnecessary now when
cgwb->bdi is a proper refcounted reference (thus bdi cannot get
released before all cgwbs are released) and when cgwb_bdi_destroy()
shuts down writeback directly.
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/backing-dev-defs.h')
| -rw-r--r-- | include/linux/backing-dev-defs.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h index 8af720f22a2d..e66d4722db8e 100644 --- a/include/linux/backing-dev-defs.h +++ b/include/linux/backing-dev-defs.h @@ -164,7 +164,6 @@ struct backing_dev_info { #ifdef CONFIG_CGROUP_WRITEBACK struct radix_tree_root cgwb_tree; /* radix tree of active cgroup wbs */ struct rb_root cgwb_congested_tree; /* their congested states */ - atomic_t usage_cnt; /* counts both cgwbs and cgwb_contested's */ #else struct bdi_writeback_congested *wb_congested; #endif |
