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| author | Tejun Heo | 2015-05-22 23:13:38 +0200 |
|---|---|---|
| committer | Jens Axboe | 2015-06-02 16:33:35 +0200 |
| commit | ce7acfeaf0363c8b75810908448f61af04d38f91 (patch) | |
| tree | d1f45850fc6a225662f1e959d26572f70539a24b /mm/page-writeback.c | |
| parent | writeback: make backing_dev_info host cgroup-specific bdi_writebacks (diff) | |
| download | kernel-qcow2-linux-ce7acfeaf0363c8b75810908448f61af04d38f91.tar.gz kernel-qcow2-linux-ce7acfeaf0363c8b75810908448f61af04d38f91.tar.xz kernel-qcow2-linux-ce7acfeaf0363c8b75810908448f61af04d38f91.zip | |
writeback, blkcg: associate each blkcg_gq with the corresponding bdi_writeback_congested
A blkg (blkcg_gq) can be congested and decongested independently from
other blkgs on the same request_queue. Accordingly, for cgroup
writeback support, the congestion status at bdi (backing_dev_info)
should be split and updated separately from matching blkg's.
This patch prepares by adding blkg->wb_congested and associating a
blkg with its matching per-blkcg bdi_writeback_congested on creation.
v2: Updated to associate bdi_writeback_congested instead of
bdi_writeback.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jan Kara <jack@suse.cz>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'mm/page-writeback.c')
0 files changed, 0 insertions, 0 deletions