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Date: Sun, 3 Jun 2018 16:03:09 -0700 From: Yonghong Song <yhs@...com> To: Alexei Starovoitov <alexei.starovoitov@...il.com> CC: <ast@...com>, <daniel@...earbox.net>, <netdev@...r.kernel.org>, <kernel-team@...com> Subject: Re: [PATCH net-next 0/3] bpf: implement bpf_get_current_cgroup_id() helper On 6/3/18 1:00 PM, Alexei Starovoitov wrote: > On Sun, Jun 03, 2018 at 12:36:51AM -0700, Yonghong Song wrote: >> bpf has been used extensively for tracing. For example, bcc >> contains an almost full set of bpf-based tools to trace kernel >> and user functions/events. Most tracing tools are currently >> either filtered based on pid or system-wide. >> >> Containers have been used quite extensively in industry and >> cgroup is often used together to provide resource isolation >> and protection. Several processes may run inside the same >> container. It is often desirable to get container-level tracing >> results as well, e.g. syscall count, function count, I/O >> activity, etc. >> >> This patch implements a new helper, bpf_get_current_cgroup_id(), >> which will return cgroup id based on the cgroup within which >> the current task is running. >> >> Patch #1 implements the new helper in the kernel. >> Patch #2 syncs the uapi bpf.h header and helper between tools >> and kernel. >> Patch #3 shows how to get the same cgroup id in user space, >> so a filter or policy could be configgured in the bpf program >> based on current task cgroup. > > for all patches: > Acked-by: Alexei Starovoitov <ast@...nel.org> > > please rebase, so it can be applied and s/net-next/bpf-next/ in subj. Sorry. Missed to change subject line from "net-next" to "bpf-next". Do you want to submit another revision? > Thanks! >
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