Hi,
在 2024/06/14 0:15, Bart Van Assche 写道:
On 6/12/24 10:54 PM, Greg KH wrote:
On Thu, Jun 13, 2024 at 09:49:30AM +0800, Yu Kuai wrote:
From: Yu Kuai <yukuai3@xxxxxxxxxx>
Yu Kuai (7):
kernfs: export pr_cont_kernfs_path()
cgroup: export cgroup_parse_float
block: export some API
blk-iocost: factor out helpers to handle params from ioc_qos_write()
blk-iocost: parse params before initializing iocost
blk-iocost: support to free iocost
blk-iocost: support to build iocost as kernel module
No where do you say _why_ building this as a module is a good idea.
Why do this at all?
With CONFIG_BLK_CGROUP_IOCOST=y (as in the Android kernel), the
blk-iocost kernel module causes a (small) runtime overhead, even if it
is not being used.
I think this is not true... Because iocost is lazy initialized, and if
iocost is not initialized, there should not be such overhead.
Thanks,
Kuai
Thanks,
Bart.
.
