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| author |   Tejun Heo <tj@kernel.org> | 2015-05-22 17:13:23 -0400 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2015-06-02 08:33:34 -0600 |
| commit | fd383c2d3cae146337cea809de0d622b8b887e6c (patch) | |
| tree | 649a13a93cb5cf05c43bb7a9b91efd94c05fac29 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | cgroup, block: implement task_get_css() and use it in bio_associate_current() (diff) | |
| download | linux-dev-fd383c2d3cae146337cea809de0d622b8b887e6c.tar.xz linux-dev-fd383c2d3cae146337cea809de0d622b8b887e6c.zip | |
blkcg: implement task_get_blkcg_css()
Implement a wrapper around task_get_css() to acquire the blkcg css for
a given task. The wrapper is necessary for cgroup writeback support
as there will be places outside blkcg proper trying to acquire
blkcg_css and blkio_cgrp_id will be undefined when !CONFIG_BLK_CGROUP.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@fb.com>
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