Messages in this thread | | | Date | Wed, 25 Mar 2009 09:52:04 -0700 | From | "Paul E. McKenney" <> | Subject | Re: [tip:tracing/kmemtrace] rcutree: fix rcu_tree_trace.c data structure dependencies |
| |
On Wed, Mar 25, 2009 at 05:11:47PM +0100, Ingo Molnar wrote: > > * Ingo Molnar <mingo@elte.hu> wrote: > > > Commit-ID: 5d957021d326fbfdc1d7a4f11a3da1f6f82d6a36 > > Gitweb: http://git.kernel.org/tip/5d957021d326fbfdc1d7a4f11a3da1f6f82d6a36 > > Author: Ingo Molnar <mingo@elte.hu> > > AuthorDate: Wed, 25 Mar 2009 16:42:24 +0100 > > Committer: Ingo Molnar <mingo@elte.hu> > > CommitDate: Wed, 25 Mar 2009 16:42:24 +0100 > > > > rcutree: fix rcu_tree_trace.c data structure dependencies > > > > Impact: build fix > > > > We removed rcutree internals from the public rcutree.h file - but > > kernel/rcutree_trace.c depends on them. > > > > Introduce kernel/rcutree.h for internal definitions. (Probably all > > the other data types from include/linux/rcutree.h could be > > moved here too - except rcu_data.) > > Paul ... what do you think? This is just an interim measure to get > the build going - i think we could do more cleanups here perhaps, if > you agree.
I am generally in favor of this. I reviewed the above gitweb and it looks good to me, feel free to append:
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> I think many of the data definitions (and the resulting include file > dependencies) in include/linux/rcu*.h could move into kernel/rcu*.h > and be privatized that way. 'struct rcu_state' would be an example. > > Agreed?
In principle, yes. In practice, my attempts to make headway in this direction have usually collided with the desire to inline some of the functions that appear on fastpaths, so I would prefer caution when moving in this direction, especially given my treercu-related todos, to which "speeding up synchronize_rcu()" just got added.
Thanx, Paul
| |