This patchset is to enhance sqthread cpu binding logic, we didn't consider cgroup setting before. In container environment, theoretically sqthread is in its container's task group, it shouldn't occupy cpu out of its container. Otherwise it may cause some problems, for example: resource balancer may controll cpu resource allocation by a container's current cpu usage, here sqthread should be counted in. v1-->v2 - add helper to do cpu in current-cpuset test v2-->v3 - split it to 2 patches, first as prep one, second as comsumer - remove warnning, since cpuset may change anytime, we cannot catch all cases, so make the behaviour consistent. v3-->v4 - remove sqthread cpu binding helper since the logic is now very simple Hao Xu (2): cpuset: add a helper to check if cpu in cpuset of current task io_uring: consider cgroup setting when binding sqpoll cpu fs/io_uring.c | 11 ++++++----- include/linux/cpuset.h | 7 +++++++ kernel/cgroup/cpuset.c | 11 +++++++++++ 3 files changed, 24 insertions(+), 5 deletions(-) -- 2.24.4
