Re: [RFC PATCH v2] tinification: Introduce CONFIG_SRCU to make SRCU optional

2014-12-04 Thread Pranith Kumar
(resending, forgot CC's) On Thu, Dec 4, 2014 at 11:13 AM, Josh Triplett wrote: >> >> The current tinyconfig on x86 enables SRCU by default since x86 enables >> PERF_EVENTS which in-turn require SRCU support. If we disable >> PERF_EVENTS, we can disable compiling SRCU for tiny configs on x86 syste

Re: [RFC PATCH v2] tinification: Introduce CONFIG_SRCU to make SRCU optional

2014-12-04 Thread Paul E. McKenney
On Thu, Dec 04, 2014 at 10:37:39AM -0500, Pranith Kumar wrote: > On 12/04/2014 01:27 AM, Paul E. McKenney wrote: > > For the moment, I applied this to -rcu against v3.18-rc6 to get some 0day > > testing on it. > > > > There are conflicts against the tip of my tree, but will worry about > > that la

Re: [RFC PATCH v2] tinification: Introduce CONFIG_SRCU to make SRCU optional

2014-12-04 Thread Josh Triplett
On Wed, Dec 03, 2014 at 11:03:52PM -0500, Pranith Kumar wrote: > (CC list trimmed since this is just for initial feedback) > > SRCU is not necessary to be compiled by default in all cases. For tinification > efforts not compiling SRCU unless necessary is desirable. > > The current patch tries to

Re: [RFC PATCH v2] tinification: Introduce CONFIG_SRCU to make SRCU optional

2014-12-04 Thread Pranith Kumar
On 12/04/2014 01:27 AM, Paul E. McKenney wrote: > For the moment, I applied this to -rcu against v3.18-rc6 to get some 0day > testing on it. > > There are conflicts against the tip of my tree, but will worry about > that later. I don't have a ready answer on whether or not this needs > to be spli

Re: [RFC PATCH v2] tinification: Introduce CONFIG_SRCU to make SRCU optional

2014-12-03 Thread Paul E. McKenney
On Wed, Dec 03, 2014 at 11:03:52PM -0500, Pranith Kumar wrote: > (CC list trimmed since this is just for initial feedback) > > SRCU is not necessary to be compiled by default in all cases. For tinification > efforts not compiling SRCU unless necessary is desirable. > > The current patch tries to

[RFC PATCH v2] tinification: Introduce CONFIG_SRCU to make SRCU optional

2014-12-03 Thread Pranith Kumar
(CC list trimmed since this is just for initial feedback) SRCU is not necessary to be compiled by default in all cases. For tinification efforts not compiling SRCU unless necessary is desirable. The current patch tries to make compiling SRCU optional by introducing a new Kconfig option CONFIG_SRC