Commit bf20ab538c81 ("blk-throttle: remove CONFIG_BLK_DEV_THROTTLING_LOW") attempts to revert the code change introduced by commit cd5ab1b0fcb4 ("blk-throttle: add .low interface"). However, it leaves behind the bps_conf[] and iops_conf[] fields in the throtl_grp structure which aren't set anywhere in the new blk-throttle.c code but are still being used by tg_prfill_limit() to display the limits in io.max. Now io.max always displays the following values if a block queue is used: <m>:<n> rbps=0 wbps=0 riops=0 wiops=0 Fix this problem by removing bps_conf[] and iops_conf[] and use bps[] and iops[] instead to complete the revert. Fixes: bf20ab538c81 ("blk-throttle: remove CONFIG_BLK_DEV_THROTTLING_LOW") Reported-by: Justin Forbes <jforbes@redhat.com> Closes: https://github.com/containers/podman/issues/22701#issuecomment-2120627789 Signed-off-by: Waiman Long <longman@redhat.com> Acked-by: Tejun Heo <tj@kernel.org> Reviewed-by: Yu Kuai <yukuai3@huawei.com> Link: https://lore.kernel.org/r/20240530134547.970075-1-longman@redhat.com 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 reStructuredText 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.
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