diff options
| author | Chengming Zhou <zhouchengming@bytedance.com> | 2023-08-04 14:50:37 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-08-08 15:43:03 -0600 |
| commit | 2eae9c4912b6cfdfadcd4fa8ac26879e18a504a1 (patch) | |
| tree | 74e39d30c656ac683f7e39ef5effacdb45d61c70 /tools/cgroup | |
| parent | a24c8b5111a139b54fd02fec23bc21789135cd2e (diff) | |
iocost_monitor: fix kernel queue kobj changes
When I use iocost_monitor on nvme0n1, this error shows up:
"Could not find ioc for nvme0n1"
There is no kobj in struct queue in recent kernel, it seems that the commit
2bd85221a625 ("block: untangle request_queue refcounting from sysfs")
move the queue kobj to struct gendisk.
Fix it by using mq_kobj which is at the same level with queue kobj.
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Link: https://lore.kernel.org/r/20230804065039.8885-1-chengming.zhou@linux.dev
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'tools/cgroup')
| -rw-r--r-- | tools/cgroup/iocost_monitor.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/cgroup/iocost_monitor.py b/tools/cgroup/iocost_monitor.py index 0dbbc67400fc..7aa076cb559e 100644 --- a/tools/cgroup/iocost_monitor.py +++ b/tools/cgroup/iocost_monitor.py @@ -221,7 +221,7 @@ ioc = None for i, ptr in radix_tree_for_each(blkcg_root.blkg_tree.address_of_()): blkg = drgn.Object(prog, 'struct blkcg_gq', address=ptr) try: - if devname == blkg.q.kobj.parent.name.string_().decode('utf-8'): + if devname == blkg.q.mq_kobj.parent.name.string_().decode('utf-8'): q_id = blkg.q.id.value_() if blkg.pd[plid]: root_iocg = container_of(blkg.pd[plid], 'struct ioc_gq', 'pd') |