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| author |   Jan Kara <jack@suse.cz> | 2017-03-23 01:36:57 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2017-03-22 20:11:28 -0600 |
| commit | 5318ce7d46866e1dbc20ab9349b93753edba0b3e (patch) | |
| tree | 6a4070a385e86006c64868a2f9bd363ab002cfc8 /virt | |
| parent | bdi: Unify bdi->wb_list handling for root wb_writeback (diff) | |
| download | linux-dev-5318ce7d46866e1dbc20ab9349b93753edba0b3e.tar.xz linux-dev-5318ce7d46866e1dbc20ab9349b93753edba0b3e.zip | |
bdi: Shutdown writeback on all cgwbs in cgwb_bdi_destroy()
Currently we waited for all cgwbs to get freed in cgwb_bdi_destroy()
which also means that writeback has been shutdown on them. Since this
wait is going away, directly shutdown writeback on cgwbs from
cgwb_bdi_destroy() to avoid live writeback structures after
bdi_unregister() has finished. To make that safe with concurrent
shutdown from cgwb_release_workfn(), we also have to make sure
wb_shutdown() returns only after the bdi_writeback structure is really
shutdown.
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 'virt')
0 files changed, 0 insertions, 0 deletions