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SubjectRe: [PATCHv3 3/3] kernel: add sysfs documentation for live patching
On Fri, Nov 21, 2014 at 11:49:46AM +0900, Masami Hiramatsu wrote:
> (2014/11/21 7:29), Seth Jennings wrote:
> > Adds sysfs interface documentation to Documentation/ABI/testing/
> >
>
> Hmm, is there any reason to decouple this documentation from code patch?
> I think we'd better merge this to 2/3, or move sysfs interface code from 2/3 to this.

Good point. I'll collapse this into 2/3 for v4.

Thanks,
Seth

>
> Thank you,
>
> > Signed-off-by: Seth Jennings <sjenning@redhat.com>
> > ---
> > Documentation/ABI/testing/sysfs-kernel-livepatch | 44 ++++++++++++++++++++++++
> > MAINTAINERS | 1 +
> > 2 files changed, 45 insertions(+)
> > create mode 100644 Documentation/ABI/testing/sysfs-kernel-livepatch
> >
> > diff --git a/Documentation/ABI/testing/sysfs-kernel-livepatch b/Documentation/ABI/testing/sysfs-kernel-livepatch
> > new file mode 100644
> > index 0000000..5bf42a8
> > --- /dev/null
> > +++ b/Documentation/ABI/testing/sysfs-kernel-livepatch
> > @@ -0,0 +1,44 @@
> > +What: /sys/kernel/livepatch
> > +Date: Nov 2014
> > +KernelVersion: 3.19.0
> > +Contact: live-patching@vger.kernel.org
> > +Description:
> > + Interface for kernel live patching
> > +
> > + The /sys/kernel/livepatch directory contains subdirectories for
> > + each loaded live patch module.
> > +
> > +What: /sys/kernel/livepatch/<patch>
> > +Date: Nov 2014
> > +KernelVersion: 3.19.0
> > +Contact: live-patching@vger.kernel.org
> > +Description:
> > + The patch directory contains subdirectories for each kernel
> > + object (vmlinux or a module) in which it patched functions.
> > +
> > +What: /sys/kernel/livepatch/<patch>/enabled
> > +Date: Nov 2014
> > +KernelVersion: 3.19.0
> > +Contact: live-patching@vger.kernel.org
> > +Description:
> > + A writable attribute that indicates whether the patched
> > + code is currently applied. Writing 0 will disable the patch
> > + while writing 1 will re-enable the patch.
> > +
> > +What: /sys/kernel/livepatch/<patch>/<object>
> > +Date: Nov 2014
> > +KernelVersion: 3.19.0
> > +Contact: live-patching@vger.kernel.org
> > +Description:
> > + The object directory contains subdirectories for each function
> > + that is patched within the object.
> > +
> > +What: /sys/kernel/livepatch/<patch>/<object>/<function>
> > +Date: Nov 2014
> > +KernelVersion: 3.19.0
> > +Contact: live-patching@vger.kernel.org
> > +Description:
> > + The function directory contains attributes regarding the
> > + properties and state of the patched function.
> > +
> > + There are currently no such attributes.
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index c7f49ae..7985293 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -5725,6 +5725,7 @@ F: kernel/livepatch/
> > F: include/linux/livepatch.h
> > F: arch/x86/include/asm/livepatch.h
> > F: arch/x86/kernel/livepatch.c
> > +F: Documentation/ABI/testing/sysfs-kernel-livepatch
> > L: live-patching@vger.kernel.org
> >
> > LLC (802.2)
> >
>
>
> --
> Masami HIRAMATSU
> Software Platform Research Dept. Linux Technology Research Center
> Hitachi, Ltd., Yokohama Research Laboratory
> E-mail: masami.hiramatsu.pt@hitachi.com
>
>
> --
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