On Fri, 7 Jun 2019, John Ogness wrote: Polite ping ....
> This is a follow-up RFC on the work to reimplement much of > the core of printk. The original thread can be seen here[0]. > > One of the results of that thread was that the work needs to > be broken up into several pieces. A roadmap was laid out[1] > and this RFC is for the base component of the first piece: > a new ringbuffer implementation for printk. > > This series does not touch any existing printk code. It is > only the ringbuffer implementation. I am particularly > interested in feedback relating to the design of the > ringbuffer and the use of memory barriers. > > The series also includes a test module that performs some > heavy writer stress testing. I have successfully run these > tests on a 16-core ARM64 platform. > > John Ogness > > [0] https://lkml.kernel.org/r/[email protected] > [1] https://lkml.kernel.org/r/[email protected] > > John Ogness (2): > printk-rb: add a new printk ringbuffer implementation > printk-rb: add test module > > Documentation/core-api/index.rst | 1 + > Documentation/core-api/printk-ringbuffer.rst | 104 +++ > include/linux/printk_ringbuffer.h | 238 +++++++ > lib/Makefile | 2 + > lib/printk_ringbuffer.c | 924 > +++++++++++++++++++++++++++ > lib/test_prb.c | 237 +++++++ > 6 files changed, 1506 insertions(+) > create mode 100644 Documentation/core-api/printk-ringbuffer.rst > create mode 100644 include/linux/printk_ringbuffer.h > create mode 100644 lib/printk_ringbuffer.c > create mode 100644 lib/test_prb.c > > -- > 2.11.0 > >
