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Shaohua Li
9bb67aeb96
If a cgroup with low limit 0 for both bps/iops, the cgroup's low limit is ignored and we throttle the cgroup with its max limit. In this way, other cgroups with a low limit will not get protected. To fix this, we don't do the exception any more. cgroup will be throttled to a limit 0 if it uese default setting. To avoid completed stall, we give such cgroup tiny IO resources. Signed-off-by: Shaohua Li <shli@fb.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@fb.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.