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Date: Tue, 8 Jun 2010 20:07:01 +0200 From: Ingo Molnar <mingo@...e.hu> To: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> Cc: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org, a.p.zijlstra@...llo.nl, tglx@...utronix.de, viro@...iv.linux.org.uk, kosaki.motohiro@...fujitsu.com, benh@...nel.crashing.org, paulus@...ba.org, sparse@...isli.org Subject: Re: [GIT PULL] rcu: finalize debugobjects, first round of RCU sparse pointer checks * Paul E. McKenney <paulmck@...ux.vnet.ibm.com> wrote: > Hello, Ingo, > > Here are the final commits from Mathieu's debugobjects series and the > first few from Arnd's RCU-pointer sparse series. The first three remove > RCU's (useless) initializations from mm, fs, and powerpc: > > mm: http://lkml.org/lkml/2010/5/18/562 > fs: http://lkml.org/lkml/2010/5/18/500 > powerpc:http://www.mail-archive.com/linuxppc-dev@lists.ozlabs.org/msg43510.html > > Kosaki Motohiro agreed that the mm patch should go up -tip, and none of > the other maintainers objected to the prospect of their patches going > up -tip. > > The fourth patch removes RCU's initialization definitions, and the final > four patches provide the beginnings of Arnd's RCU-pointer sparse checks. > > git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu.git rcu/next > > Or, if you prefer this against 2.6.34-rc7 without a merge record: > > git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu.git rcu/next-rc7 > > If you would rather me rebase this stack against 2.6.35-rc1, let me know! I pulled the rcu/next-rc7 variant, thanks Paul! New features are best done against stable kernels - i.e. v2.6.34. -rc7 was pretty stable too so it was fine to pull. .35-rc1 OTOH is something definitely more regression-prone than .34-rc7. Except, of course, when we want to change code that is only in .35-rc1 - in that case merging to .35-rc1 (or later -rc's) is perfectly fine. > Either way, once these commits reach mainline, I will submit the next 21 > commits to their respective trees. The maintainers have been CCed on the > earlier LKML patchsets (http://lkml.org/lkml/2010/5/12/372). Once these > 21 commits hit mainline, I will send you a pull request for the remaining > two commits. > > Then on to CONFIG_TINY_PREEMPT_RCU. > > Thanx, Paul > > ------------------> > Mathieu Desnoyers (2) > rcu head remove init > tree/tiny rcu: Add debug RCU head objects > > Paul E. McKenney (6) > powerpc: remove all rcu head initializations > fs: remove all rcu head initializations, except on_stack initializations > mm: remove all rcu head initializations > rcu: add an rcu_dereference_index_check() > rcu: add __rcu API for later sparse checking > lockdep: Add an in_workqueue_context() lockdep-based test function > > > arch/powerpc/mm/pgtable.c | 1 > fs/file.c | 3 > fs/fs-writeback.c | 31 +++++++- > fs/partitions/check.c | 1 > include/linux/compiler.h | 2 > include/linux/rcupdate.h | 88 ++++++++++++++++++++++- > include/linux/workqueue.h | 4 + > kernel/rcupdate.c | 170 ++++++++++++++++++++++++++++++++++++++++++++++ > kernel/rcutiny.c | 2 > kernel/rcutree.c | 2 > kernel/workqueue.c | 15 ++++ > lib/Kconfig.debug | 6 + > mm/backing-dev.c | 1 > mm/slob.c | 1 > 14 files changed, 309 insertions(+), 18 deletions(-) Thanks Paul! Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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