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    SubjectRe: [PATCH v7 1/8] perf: add PERF_RECORD_NAMESPACES to include namespaces related info
    Em Fri, Feb 24, 2017 at 01:14:18PM +0100, Peter Zijlstra escreveu:
    > On Tue, Feb 21, 2017 at 07:31:23PM +0530, Hari Bathini wrote:
    > > With the advert of container technologies like docker, that depend
    > > on namespaces for isolation, there is a need for tracing support for
    > > namespaces. This patch introduces new PERF_RECORD_NAMESPACES event
    > > for recording namespaces related info. By recording info for every
    > > namespace, it is left to userspace to take a call on the definition
    > > of a container and trace containers by updating perf tool accordingly.
    > >
    > > Each namespace has a combination of device and inode numbers. Though
    > > every namespace has the same device number currently, that may change
    > > in future to avoid the need for a namespace of namespaces. Considering
    > > such possibility, record both device and inode numbers separately for
    > > each namespace.
    > >
    > > Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
    > > ---
    > > include/linux/perf_event.h | 2 +
    > > include/uapi/linux/perf_event.h | 32 +++++++++
    > > kernel/events/core.c | 139 +++++++++++++++++++++++++++++++++++++++
    > > kernel/fork.c | 2 +
    > > kernel/nsproxy.c | 3 +
    > > 5 files changed, 177 insertions(+), 1 deletion(-)
    >
    > Arnaldo, seeing that most of this patch set is tool stuff, could you
    > take the lot through the tool tree?
    >
    > This patch:
    >
    > Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>

    Ok, looking at it now.

    - Arnaldo

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