On Thu, Jul 31, 2014 at 12:29:36PM -0700, Andi Kleen wrote:
> "Paul E. McKenney" <paul...@linux.vnet.ibm.com> writes:
>
> > Hello!
> >
> > This series provides a prototype of an RCU-tasks implementation, which has
> > been requested to assist with tramopoline removal.
>
> Is that trampoline removal (whatever it is) important enough to justify
> adding that much new (and complicated) code? Are there other potential
> users of this? Is the long term maintenance cost justified?
> Will RCU keep growing forever?
My answers to all of these questions is "I don't know."
That said, I cannot resist pointing out that similar questions could be
asked of a great many other subsystems of the Linux kernel, or indeed
of the Linux kernel as a whole. ;-)
And things do appear to be moving in a good direction for RCU-tasks:
v1: 18 files changed, 749 insertions(+), 55 deletions(-)
v2: 18 files changed, 590 insertions(+), 83 deletions(-)
v3: 17 files changed, 447 insertions(+), 32 deletions(-)
The numbers for v3 are tentative, and might change based on test results.
Thanx, Paul
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