Messages in this thread | | | Subject | Re: [PATCH v2] srcu: Isolate srcu sections using CONFIG_SRCU | From | Michael Ellerman <> | Date | Sun, 04 Jan 2015 20:35:52 +1100 |
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On Tue, 2014-12-30 at 13:54 -0500, Pranith Kumar wrote: > On Tue, Dec 30, 2014 at 1:50 PM, Peter Zijlstra <peterz@infradead.org> wrote: > > On Tue, Dec 30, 2014 at 12:46:22AM -0500, Pranith Kumar wrote: > >> Isolate the SRCU functions and data structures within CONFIG_SRCU so that there > >> is a compile time failure if srcu is used when not enabled. This was decided to > >> be better than waiting until link time for a failure to occur. > > > > Why? > > This is part of the kernel tinification efforts. The first patch was > posted here: https://lkml.org/lkml/2014/12/4/848. This patch enables a > compile time failure instead of a link time failure.
The punch line was:
"so the savings are about ~2000 bytes."
Which is utterly not worth the effort IMO. There have got to be more attractive targets for tinification than this.
cheers
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