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2eae9c4912
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
2bd85221a6 ("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>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.