Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-17 Thread Arnd Bergmann
On Wed, Jan 17, 2018 at 5:32 PM, Josh Triplett wrote: > On Wed, Jan 17, 2018 at 11:29:26AM +0100, Arnd Bergmann wrote: >> On Wed, Jan 17, 2018 at 12:57 AM, Paul E. McKenney >> wrote: >> > On Wed, Jan 17, 2018 at 12:03:18AM +0100, Arnd Bergmann

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-17 Thread Arnd Bergmann
On Wed, Jan 17, 2018 at 5:32 PM, Josh Triplett wrote: > On Wed, Jan 17, 2018 at 11:29:26AM +0100, Arnd Bergmann wrote: >> On Wed, Jan 17, 2018 at 12:57 AM, Paul E. McKenney >> wrote: >> > On Wed, Jan 17, 2018 at 12:03:18AM +0100, Arnd Bergmann wrote: >> >> Evidently there is at least one driver

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-17 Thread Paul E. McKenney
On Wed, Jan 17, 2018 at 11:29:26AM +0100, Arnd Bergmann wrote: > On Wed, Jan 17, 2018 at 12:57 AM, Paul E. McKenney > wrote: > > On Wed, Jan 17, 2018 at 12:03:18AM +0100, Arnd Bergmann wrote: > >> On Tue, Jan 16, 2018 at 11:55 PM, Arnd Bergmann wrote: >

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-17 Thread Paul E. McKenney
On Wed, Jan 17, 2018 at 11:29:26AM +0100, Arnd Bergmann wrote: > On Wed, Jan 17, 2018 at 12:57 AM, Paul E. McKenney > wrote: > > On Wed, Jan 17, 2018 at 12:03:18AM +0100, Arnd Bergmann wrote: > >> On Tue, Jan 16, 2018 at 11:55 PM, Arnd Bergmann wrote: > >> > >> > > >> > That fixed the first

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-17 Thread Josh Triplett
On Wed, Jan 17, 2018 at 11:29:26AM +0100, Arnd Bergmann wrote: > On Wed, Jan 17, 2018 at 12:57 AM, Paul E. McKenney > wrote: > > On Wed, Jan 17, 2018 at 12:03:18AM +0100, Arnd Bergmann wrote: > >> Evidently there is at least one driver that uses SRCU but doesn't

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-17 Thread Josh Triplett
On Wed, Jan 17, 2018 at 11:29:26AM +0100, Arnd Bergmann wrote: > On Wed, Jan 17, 2018 at 12:57 AM, Paul E. McKenney > wrote: > > On Wed, Jan 17, 2018 at 12:03:18AM +0100, Arnd Bergmann wrote: > >> Evidently there is at least one driver that uses SRCU but doesn't 'select > >> SRCU' > >> in

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-17 Thread Arnd Bergmann
On Wed, Jan 17, 2018 at 12:57 AM, Paul E. McKenney wrote: > On Wed, Jan 17, 2018 at 12:03:18AM +0100, Arnd Bergmann wrote: >> On Tue, Jan 16, 2018 at 11:55 PM, Arnd Bergmann wrote: >> >> > >> > That fixed the first warning for me, doing the same thing

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-17 Thread Arnd Bergmann
On Wed, Jan 17, 2018 at 12:57 AM, Paul E. McKenney wrote: > On Wed, Jan 17, 2018 at 12:03:18AM +0100, Arnd Bergmann wrote: >> On Tue, Jan 16, 2018 at 11:55 PM, Arnd Bergmann wrote: >> >> > >> > That fixed the first warning for me, doing the same thing for all three >> > fixed the rest >> >> Now

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-16 Thread Paul E. McKenney
On Wed, Jan 17, 2018 at 12:03:18AM +0100, Arnd Bergmann wrote: > On Tue, Jan 16, 2018 at 11:55 PM, Arnd Bergmann wrote: > > > > > That fixed the first warning for me, doing the same thing for all three > > fixed the rest > > Now with my workaround applied and the original

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-16 Thread Paul E. McKenney
On Wed, Jan 17, 2018 at 12:03:18AM +0100, Arnd Bergmann wrote: > On Tue, Jan 16, 2018 at 11:55 PM, Arnd Bergmann wrote: > > > > > That fixed the first warning for me, doing the same thing for all three > > fixed the rest > > Now with my workaround applied and the original randconfig that

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-16 Thread Arnd Bergmann
On Tue, Jan 16, 2018 at 11:55 PM, Arnd Bergmann wrote: > > That fixed the first warning for me, doing the same thing for all three > fixed the rest Now with my workaround applied and the original randconfig that triggered the failure, I get another problem:

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-16 Thread Arnd Bergmann
On Tue, Jan 16, 2018 at 11:55 PM, Arnd Bergmann wrote: > > That fixed the first warning for me, doing the same thing for all three > fixed the rest Now with my workaround applied and the original randconfig that triggered the failure, I get another problem: drivers/base/power/wakeup.c:68:1:

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-16 Thread Arnd Bergmann
On Tue, Jan 16, 2018 at 11:34 PM, Paul E. McKenney wrote: > On Tue, Jan 16, 2018 at 10:02:10PM +0100, Arnd Bergmann wrote: >> On Sat, Jun 3, 2017 at 10:36 PM, Paul E. McKenney >> wrote: >> > On Sat, Jun 03, 2017 at 01:18:43AM -0400, Nicolas

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-16 Thread Arnd Bergmann
On Tue, Jan 16, 2018 at 11:34 PM, Paul E. McKenney wrote: > On Tue, Jan 16, 2018 at 10:02:10PM +0100, Arnd Bergmann wrote: >> On Sat, Jun 3, 2017 at 10:36 PM, Paul E. McKenney >> wrote: >> > On Sat, Jun 03, 2017 at 01:18:43AM -0400, Nicolas Pitre wrote: >> >> On Fri, 2 Jun 2017, Paul E. McKenney

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-16 Thread Paul E. McKenney
On Tue, Jan 16, 2018 at 10:02:10PM +0100, Arnd Bergmann wrote: > On Sat, Jun 3, 2017 at 10:36 PM, Paul E. McKenney > wrote: > > On Sat, Jun 03, 2017 at 01:18:43AM -0400, Nicolas Pitre wrote: > >> On Fri, 2 Jun 2017, Paul E. McKenney wrote: > >> > >> > On Fri, May 12,

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-16 Thread Paul E. McKenney
On Tue, Jan 16, 2018 at 10:02:10PM +0100, Arnd Bergmann wrote: > On Sat, Jun 3, 2017 at 10:36 PM, Paul E. McKenney > wrote: > > On Sat, Jun 03, 2017 at 01:18:43AM -0400, Nicolas Pitre wrote: > >> On Fri, 2 Jun 2017, Paul E. McKenney wrote: > >> > >> > On Fri, May 12, 2017 at 12:10:05PM -0700,

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-16 Thread Arnd Bergmann
On Tue, Jan 16, 2018 at 10:02 PM, Arnd Bergmann wrote: > On Sat, Jun 3, 2017 at 10:36 PM, Paul E. McKenney > wrote: >> On Sat, Jun 03, 2017 at 01:18:43AM -0400, Nicolas Pitre wrote: >>> On Fri, 2 Jun 2017, Paul E. McKenney wrote: > It took me around

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-16 Thread Arnd Bergmann
On Tue, Jan 16, 2018 at 10:02 PM, Arnd Bergmann wrote: > On Sat, Jun 3, 2017 at 10:36 PM, Paul E. McKenney > wrote: >> On Sat, Jun 03, 2017 at 01:18:43AM -0400, Nicolas Pitre wrote: >>> On Fri, 2 Jun 2017, Paul E. McKenney wrote: > It took me around 20 randconfig builds since May, but I

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-16 Thread Arnd Bergmann
On Sat, Jun 3, 2017 at 10:36 PM, Paul E. McKenney wrote: > On Sat, Jun 03, 2017 at 01:18:43AM -0400, Nicolas Pitre wrote: >> On Fri, 2 Jun 2017, Paul E. McKenney wrote: >> >> > On Fri, May 12, 2017 at 12:10:05PM -0700, Paul E. McKenney wrote: >> > > On Fri, May 12,

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2018-01-16 Thread Arnd Bergmann
On Sat, Jun 3, 2017 at 10:36 PM, Paul E. McKenney wrote: > On Sat, Jun 03, 2017 at 01:18:43AM -0400, Nicolas Pitre wrote: >> On Fri, 2 Jun 2017, Paul E. McKenney wrote: >> >> > On Fri, May 12, 2017 at 12:10:05PM -0700, Paul E. McKenney wrote: >> > > On Fri, May 12, 2017 at 02:59:48PM -0400,

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-06-03 Thread Paul E. McKenney
On Sat, Jun 03, 2017 at 01:18:43AM -0400, Nicolas Pitre wrote: > On Fri, 2 Jun 2017, Paul E. McKenney wrote: > > > On Fri, May 12, 2017 at 12:10:05PM -0700, Paul E. McKenney wrote: > > > On Fri, May 12, 2017 at 02:59:48PM -0400, Nicolas Pitre wrote: > > > > On Fri, 12 May 2017, Paul E. McKenney

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-06-03 Thread Paul E. McKenney
On Sat, Jun 03, 2017 at 01:18:43AM -0400, Nicolas Pitre wrote: > On Fri, 2 Jun 2017, Paul E. McKenney wrote: > > > On Fri, May 12, 2017 at 12:10:05PM -0700, Paul E. McKenney wrote: > > > On Fri, May 12, 2017 at 02:59:48PM -0400, Nicolas Pitre wrote: > > > > On Fri, 12 May 2017, Paul E. McKenney

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-06-02 Thread Nicolas Pitre
On Fri, 2 Jun 2017, Paul E. McKenney wrote: > On Fri, May 12, 2017 at 12:10:05PM -0700, Paul E. McKenney wrote: > > On Fri, May 12, 2017 at 02:59:48PM -0400, Nicolas Pitre wrote: > > > On Fri, 12 May 2017, Paul E. McKenney wrote: > > [ . . . ] > > > > No. "Available in mainline" is the name of

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-06-02 Thread Nicolas Pitre
On Fri, 2 Jun 2017, Paul E. McKenney wrote: > On Fri, May 12, 2017 at 12:10:05PM -0700, Paul E. McKenney wrote: > > On Fri, May 12, 2017 at 02:59:48PM -0400, Nicolas Pitre wrote: > > > On Fri, 12 May 2017, Paul E. McKenney wrote: > > [ . . . ] > > > > No. "Available in mainline" is the name of

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-06-02 Thread Paul E. McKenney
On Fri, May 12, 2017 at 12:10:05PM -0700, Paul E. McKenney wrote: > On Fri, May 12, 2017 at 02:59:48PM -0400, Nicolas Pitre wrote: > > On Fri, 12 May 2017, Paul E. McKenney wrote: [ . . . ] > > No. "Available in mainline" is the name of the game for all I do. If it > > can't be made acceptable

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-06-02 Thread Paul E. McKenney
On Fri, May 12, 2017 at 12:10:05PM -0700, Paul E. McKenney wrote: > On Fri, May 12, 2017 at 02:59:48PM -0400, Nicolas Pitre wrote: > > On Fri, 12 May 2017, Paul E. McKenney wrote: [ . . . ] > > No. "Available in mainline" is the name of the game for all I do. If it > > can't be made acceptable

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-05-12 Thread Paul E. McKenney
On Fri, May 12, 2017 at 02:59:48PM -0400, Nicolas Pitre wrote: > On Fri, 12 May 2017, Paul E. McKenney wrote: > > > On Fri, Apr 28, 2017 at 05:10:40PM -0700, Paul E. McKenney wrote: > > > On Fri, Apr 28, 2017 at 05:51:15PM -0400, Nicolas Pitre wrote: > > > > On Fri, 28 Apr 2017, Paul E. McKenney

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-05-12 Thread Paul E. McKenney
On Fri, May 12, 2017 at 02:59:48PM -0400, Nicolas Pitre wrote: > On Fri, 12 May 2017, Paul E. McKenney wrote: > > > On Fri, Apr 28, 2017 at 05:10:40PM -0700, Paul E. McKenney wrote: > > > On Fri, Apr 28, 2017 at 05:51:15PM -0400, Nicolas Pitre wrote: > > > > On Fri, 28 Apr 2017, Paul E. McKenney

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-05-12 Thread Nicolas Pitre
On Fri, 12 May 2017, Paul E. McKenney wrote: > On Fri, Apr 28, 2017 at 05:10:40PM -0700, Paul E. McKenney wrote: > > On Fri, Apr 28, 2017 at 05:51:15PM -0400, Nicolas Pitre wrote: > > > On Fri, 28 Apr 2017, Paul E. McKenney wrote: > > > > > > > Hello, Nicolas! > > > > > > > > Saw the TTY write

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-05-12 Thread Nicolas Pitre
On Fri, 12 May 2017, Paul E. McKenney wrote: > On Fri, Apr 28, 2017 at 05:10:40PM -0700, Paul E. McKenney wrote: > > On Fri, Apr 28, 2017 at 05:51:15PM -0400, Nicolas Pitre wrote: > > > On Fri, 28 Apr 2017, Paul E. McKenney wrote: > > > > > > > Hello, Nicolas! > > > > > > > > Saw the TTY write

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-05-12 Thread Paul E. McKenney
On Fri, May 12, 2017 at 11:41:55AM -0700, Paul E. McKenney wrote: > On Fri, Apr 28, 2017 at 05:10:40PM -0700, Paul E. McKenney wrote: > > On Fri, Apr 28, 2017 at 05:51:15PM -0400, Nicolas Pitre wrote: > > > On Fri, 28 Apr 2017, Paul E. McKenney wrote: > > > > > > > Hello, Nicolas! > > > > > > >

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-05-12 Thread Paul E. McKenney
On Fri, May 12, 2017 at 11:41:55AM -0700, Paul E. McKenney wrote: > On Fri, Apr 28, 2017 at 05:10:40PM -0700, Paul E. McKenney wrote: > > On Fri, Apr 28, 2017 at 05:51:15PM -0400, Nicolas Pitre wrote: > > > On Fri, 28 Apr 2017, Paul E. McKenney wrote: > > > > > > > Hello, Nicolas! > > > > > > >

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-05-12 Thread Paul E. McKenney
On Fri, Apr 28, 2017 at 05:10:40PM -0700, Paul E. McKenney wrote: > On Fri, Apr 28, 2017 at 05:51:15PM -0400, Nicolas Pitre wrote: > > On Fri, 28 Apr 2017, Paul E. McKenney wrote: > > > > > Hello, Nicolas! > > > > > > Saw the TTY write up LWN and figured I should send this your way. > > > It

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-05-12 Thread Paul E. McKenney
On Fri, Apr 28, 2017 at 05:10:40PM -0700, Paul E. McKenney wrote: > On Fri, Apr 28, 2017 at 05:51:15PM -0400, Nicolas Pitre wrote: > > On Fri, 28 Apr 2017, Paul E. McKenney wrote: > > > > > Hello, Nicolas! > > > > > > Saw the TTY write up LWN and figured I should send this your way. > > > It

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-04-28 Thread Paul E. McKenney
On Fri, Apr 28, 2017 at 05:51:15PM -0400, Nicolas Pitre wrote: > On Fri, 28 Apr 2017, Paul E. McKenney wrote: > > > Hello, Nicolas! > > > > Saw the TTY write up LWN and figured I should send this your way. > > It should be worth about 2K compared to current -next, which gave > > up the 2K

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-04-28 Thread Paul E. McKenney
On Fri, Apr 28, 2017 at 05:51:15PM -0400, Nicolas Pitre wrote: > On Fri, 28 Apr 2017, Paul E. McKenney wrote: > > > Hello, Nicolas! > > > > Saw the TTY write up LWN and figured I should send this your way. > > It should be worth about 2K compared to current -next, which gave > > up the 2K

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-04-28 Thread Nicolas Pitre
On Fri, 28 Apr 2017, Paul E. McKenney wrote: > Hello, Nicolas! > > Saw the TTY write up LWN and figured I should send this your way. > It should be worth about 2K compared to current -next, which gave > up the 2K compared to v4.10. So really getting things back to where > they were. > > My

Re: [PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-04-28 Thread Nicolas Pitre
On Fri, 28 Apr 2017, Paul E. McKenney wrote: > Hello, Nicolas! > > Saw the TTY write up LWN and figured I should send this your way. > It should be worth about 2K compared to current -next, which gave > up the 2K compared to v4.10. So really getting things back to where > they were. > > My

[PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-04-28 Thread Paul E. McKenney
Hello, Nicolas! Saw the TTY write up LWN and figured I should send this your way. It should be worth about 2K compared to current -next, which gave up the 2K compared to v4.10. So really getting things back to where they were. My current plan is to push this into v4.13.

[PATCH RFC tip/core/rcu] Make SRCU be once again optional

2017-04-28 Thread Paul E. McKenney
Hello, Nicolas! Saw the TTY write up LWN and figured I should send this your way. It should be worth about 2K compared to current -next, which gave up the 2K compared to v4.10. So really getting things back to where they were. My current plan is to push this into v4.13.