Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-09 Thread Paul E. McKenney
On Tue, Apr 09, 2019 at 02:04:11PM -0400, Mathieu Desnoyers wrote: > - On Apr 9, 2019, at 1:55 PM, paulmck paul...@linux.ibm.com wrote: > [...] > > The current state is not horrible, so my thought would be to give it > > some time to see if better thoughts arise. > > > > Either way,

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-09 Thread Joel Fernandes
On Tue, Apr 09, 2019 at 11:56:03AM -0400, Mathieu Desnoyers wrote: > - On Apr 9, 2019, at 11:40 AM, Joel Fernandes, Google > j...@joelfernandes.org wrote: > > > On Mon, Apr 08, 2019 at 01:24:47PM -0400, Mathieu Desnoyers wrote: > >> - On Apr 8, 2019, at 11:46 AM, paulmck

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-09 Thread Mathieu Desnoyers
- On Apr 9, 2019, at 11:40 AM, Joel Fernandes, Google j...@joelfernandes.org wrote: > On Mon, Apr 08, 2019 at 01:24:47PM -0400, Mathieu Desnoyers wrote: >> - On Apr 8, 2019, at 11:46 AM, paulmck paul...@linux.ibm.com wrote: >> >> > On Mon, Apr 08, 2019 at 10:49:32AM -0400, Mathieu

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-09 Thread Paul E. McKenney
On Tue, Apr 09, 2019 at 12:45:25PM -0400, Mathieu Desnoyers wrote: > - On Apr 9, 2019, at 12:40 PM, paulmck paul...@linux.ibm.com wrote: > > > On Tue, Apr 09, 2019 at 11:56:03AM -0400, Mathieu Desnoyers wrote: > >> - On Apr 9, 2019, at 11:40 AM, Joel Fernandes, Google > >>

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-09 Thread Mathieu Desnoyers
- On Apr 9, 2019, at 12:40 PM, paulmck paul...@linux.ibm.com wrote: > On Tue, Apr 09, 2019 at 11:56:03AM -0400, Mathieu Desnoyers wrote: >> - On Apr 9, 2019, at 11:40 AM, Joel Fernandes, Google >> j...@joelfernandes.org >> wrote: >> >> > On Mon, Apr 08, 2019 at 01:24:47PM -0400, Mathieu

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-09 Thread Paul E. McKenney
On Tue, Apr 09, 2019 at 11:56:03AM -0400, Mathieu Desnoyers wrote: > - On Apr 9, 2019, at 11:40 AM, Joel Fernandes, Google > j...@joelfernandes.org wrote: > > > On Mon, Apr 08, 2019 at 01:24:47PM -0400, Mathieu Desnoyers wrote: > >> - On Apr 8, 2019, at 11:46 AM, paulmck

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-09 Thread Mathieu Desnoyers
- On Apr 9, 2019, at 1:55 PM, paulmck paul...@linux.ibm.com wrote: [...] > The current state is not horrible, so my thought would be to give it > some time to see if better thoughts arise. > > Either way, cleanup_srcu_struct() keeps its current checks for callbacks > still being in flight,

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-09 Thread Joel Fernandes
On Mon, Apr 08, 2019 at 01:24:47PM -0400, Mathieu Desnoyers wrote: > - On Apr 8, 2019, at 11:46 AM, paulmck paul...@linux.ibm.com wrote: > > > On Mon, Apr 08, 2019 at 10:49:32AM -0400, Mathieu Desnoyers wrote: > >> - On Apr 8, 2019, at 10:22 AM, paulmck paul...@linux.ibm.com wrote: > >>

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Mathieu Desnoyers
- On Apr 8, 2019, at 10:22 AM, paulmck paul...@linux.ibm.com wrote: > On Mon, Apr 08, 2019 at 09:05:34AM -0400, Mathieu Desnoyers wrote: >> - On Apr 7, 2019, at 10:27 PM, paulmck paul...@linux.ibm.com wrote: >> >> > On Sun, Apr 07, 2019 at 09:07:18PM +, Joel Fernandes wrote: >> >> On

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Paul E. McKenney
On Mon, Apr 08, 2019 at 10:49:32AM -0400, Mathieu Desnoyers wrote: > - On Apr 8, 2019, at 10:22 AM, paulmck paul...@linux.ibm.com wrote: > > > On Mon, Apr 08, 2019 at 09:05:34AM -0400, Mathieu Desnoyers wrote: > >> - On Apr 7, 2019, at 10:27 PM, paulmck paul...@linux.ibm.com wrote: > >>

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Paul E. McKenney
On Mon, Apr 08, 2019 at 09:05:34AM -0400, Mathieu Desnoyers wrote: > - On Apr 7, 2019, at 10:27 PM, paulmck paul...@linux.ibm.com wrote: > > > On Sun, Apr 07, 2019 at 09:07:18PM +, Joel Fernandes wrote: > >> On Sun, Apr 07, 2019 at 04:41:36PM -0400, Mathieu Desnoyers wrote: > >> > > >> >

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Mathieu Desnoyers
- On Apr 8, 2019, at 11:46 AM, paulmck paul...@linux.ibm.com wrote: > On Mon, Apr 08, 2019 at 10:49:32AM -0400, Mathieu Desnoyers wrote: >> - On Apr 8, 2019, at 10:22 AM, paulmck paul...@linux.ibm.com wrote: >> >> > On Mon, Apr 08, 2019 at 09:05:34AM -0400, Mathieu Desnoyers wrote: >> >>

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Mathieu Desnoyers
- On Apr 7, 2019, at 10:27 PM, paulmck paul...@linux.ibm.com wrote: > On Sun, Apr 07, 2019 at 09:07:18PM +, Joel Fernandes wrote: >> On Sun, Apr 07, 2019 at 04:41:36PM -0400, Mathieu Desnoyers wrote: >> > >> > - On Apr 7, 2019, at 3:32 PM, Joel Fernandes, Google >> >

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Mathieu Desnoyers
- On Apr 7, 2019, at 3:32 PM, Joel Fernandes, Google j...@joelfernandes.org wrote: > On Sun, Apr 07, 2019 at 03:26:16PM -0400, Mathieu Desnoyers wrote: >> - On Apr 7, 2019, at 9:59 AM, paulmck paul...@linux.ibm.com wrote: >> >> > On Sun, Apr 07, 2019 at 06:39:41AM -0700, Paul E.

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Joel Fernandes
On Fri, Apr 05, 2019 at 04:28:35PM -0700, Paul E. McKenney wrote: > On Wed, Apr 03, 2019 at 09:20:39AM -0700, Paul E. McKenney wrote: > > On Wed, Apr 03, 2019 at 10:27:42AM -0400, Mathieu Desnoyers wrote: > > > - On Apr 3, 2019, at 9:32 AM, paulmck paul...@linux.ibm.com wrote: > > > > > > >

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Mathieu Desnoyers
- On Apr 7, 2019, at 9:59 AM, paulmck paul...@linux.ibm.com wrote: > On Sun, Apr 07, 2019 at 06:39:41AM -0700, Paul E. McKenney wrote: >> On Sat, Apr 06, 2019 at 07:06:13PM -0400, Joel Fernandes wrote: > > [ . . . ] > >> > > diff --git a/include/asm-generic/vmlinux.lds.h >> > >

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Paul E. McKenney
On Sun, Apr 07, 2019 at 08:36:46PM -0400, Joel Fernandes wrote: > On Sun, Apr 07, 2019 at 10:05:14AM -0700, Paul E. McKenney wrote: > > On Sun, Apr 07, 2019 at 03:46:13PM +, Joel Fernandes wrote: > > > On Sun, Apr 07, 2019 at 06:59:37AM -0700, Paul E. McKenney wrote: > > > > On Sun, Apr 07,

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Paul E. McKenney
On Sun, Apr 07, 2019 at 06:39:41AM -0700, Paul E. McKenney wrote: > On Sat, Apr 06, 2019 at 07:06:13PM -0400, Joel Fernandes wrote: [ . . . ] > > > diff --git a/include/asm-generic/vmlinux.lds.h > > > b/include/asm-generic/vmlinux.lds.h > > > index f8f6f04c4453..c2d919a1566e 100644 > > > ---

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Paul E. McKenney
On Sun, Apr 07, 2019 at 03:46:13PM +, Joel Fernandes wrote: > On Sun, Apr 07, 2019 at 06:59:37AM -0700, Paul E. McKenney wrote: > > On Sun, Apr 07, 2019 at 06:39:41AM -0700, Paul E. McKenney wrote: > > > On Sat, Apr 06, 2019 at 07:06:13PM -0400, Joel Fernandes wrote: > > > > [ . . . ] > > >

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Paul E. McKenney
On Wed, Apr 03, 2019 at 09:20:39AM -0700, Paul E. McKenney wrote: > On Wed, Apr 03, 2019 at 10:27:42AM -0400, Mathieu Desnoyers wrote: > > - On Apr 3, 2019, at 9:32 AM, paulmck paul...@linux.ibm.com wrote: > > > > > On Tue, Apr 02, 2019 at 11:34:07AM -0400, Mathieu Desnoyers wrote: > > >>

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Paul E. McKenney
On Sat, Apr 06, 2019 at 01:33:27PM +, Joel Fernandes wrote: > On Fri, Apr 05, 2019 at 04:28:35PM -0700, Paul E. McKenney wrote: > > On Wed, Apr 03, 2019 at 09:20:39AM -0700, Paul E. McKenney wrote: > > > On Wed, Apr 03, 2019 at 10:27:42AM -0400, Mathieu Desnoyers wrote: > > > > - On Apr 3,

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Joel Fernandes
On Sun, Apr 07, 2019 at 04:41:36PM -0400, Mathieu Desnoyers wrote: > > - On Apr 7, 2019, at 3:32 PM, Joel Fernandes, Google > j...@joelfernandes.org wrote: > > > On Sun, Apr 07, 2019 at 03:26:16PM -0400, Mathieu Desnoyers wrote: > >> - On Apr 7, 2019, at 9:59 AM, paulmck

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Joel Fernandes
On Fri, Apr 05, 2019 at 04:28:35PM -0700, Paul E. McKenney wrote: > On Wed, Apr 03, 2019 at 09:20:39AM -0700, Paul E. McKenney wrote: > > On Wed, Apr 03, 2019 at 10:27:42AM -0400, Mathieu Desnoyers wrote: > > > - On Apr 3, 2019, at 9:32 AM, paulmck paul...@linux.ibm.com wrote: > > > > > > >

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Paul E. McKenney
On Sat, Apr 06, 2019 at 07:06:13PM -0400, Joel Fernandes wrote: > On Fri, Apr 05, 2019 at 04:28:35PM -0700, Paul E. McKenney wrote: > > On Wed, Apr 03, 2019 at 09:20:39AM -0700, Paul E. McKenney wrote: > > > On Wed, Apr 03, 2019 at 10:27:42AM -0400, Mathieu Desnoyers wrote: > > > > - On Apr 3,

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Paul E. McKenney
On Sun, Apr 07, 2019 at 09:07:18PM +, Joel Fernandes wrote: > On Sun, Apr 07, 2019 at 04:41:36PM -0400, Mathieu Desnoyers wrote: > > > > - On Apr 7, 2019, at 3:32 PM, Joel Fernandes, Google > > j...@joelfernandes.org wrote: > > > > > On Sun, Apr 07, 2019 at 03:26:16PM -0400, Mathieu

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Joel Fernandes
On Sun, Apr 07, 2019 at 03:26:16PM -0400, Mathieu Desnoyers wrote: > - On Apr 7, 2019, at 9:59 AM, paulmck paul...@linux.ibm.com wrote: > > > On Sun, Apr 07, 2019 at 06:39:41AM -0700, Paul E. McKenney wrote: > >> On Sat, Apr 06, 2019 at 07:06:13PM -0400, Joel Fernandes wrote: > > > > [ . . .

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Joel Fernandes
On Sun, Apr 07, 2019 at 06:59:37AM -0700, Paul E. McKenney wrote: > On Sun, Apr 07, 2019 at 06:39:41AM -0700, Paul E. McKenney wrote: > > On Sat, Apr 06, 2019 at 07:06:13PM -0400, Joel Fernandes wrote: > > [ . . . ] > > > > > diff --git a/include/asm-generic/vmlinux.lds.h > > > >

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-08 Thread Joel Fernandes
On Sun, Apr 07, 2019 at 10:05:14AM -0700, Paul E. McKenney wrote: > On Sun, Apr 07, 2019 at 03:46:13PM +, Joel Fernandes wrote: > > On Sun, Apr 07, 2019 at 06:59:37AM -0700, Paul E. McKenney wrote: > > > On Sun, Apr 07, 2019 at 06:39:41AM -0700, Paul E. McKenney wrote: > > > > On Sat, Apr 06,

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-03 Thread Joel Fernandes
On Wed, Apr 03, 2019 at 09:20:39AM -0700, Paul E. McKenney wrote: > On Wed, Apr 03, 2019 at 10:27:42AM -0400, Mathieu Desnoyers wrote: > > - On Apr 3, 2019, at 9:32 AM, paulmck paul...@linux.ibm.com wrote: > > > > > On Tue, Apr 02, 2019 at 11:34:07AM -0400, Mathieu Desnoyers wrote: > > >>

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-03 Thread Paul E. McKenney
On Wed, Apr 03, 2019 at 10:27:42AM -0400, Mathieu Desnoyers wrote: > - On Apr 3, 2019, at 9:32 AM, paulmck paul...@linux.ibm.com wrote: > > > On Tue, Apr 02, 2019 at 11:34:07AM -0400, Mathieu Desnoyers wrote: > >> - On Apr 2, 2019, at 11:23 AM, paulmck paul...@linux.ibm.com wrote: > >> >

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-03 Thread Mathieu Desnoyers
- On Apr 3, 2019, at 9:32 AM, paulmck paul...@linux.ibm.com wrote: > On Tue, Apr 02, 2019 at 11:34:07AM -0400, Mathieu Desnoyers wrote: >> - On Apr 2, 2019, at 11:23 AM, paulmck paul...@linux.ibm.com wrote: >> >> > On Tue, Apr 02, 2019 at 11:14:40AM -0400, Mathieu Desnoyers wrote: >> >>

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-03 Thread Paul E. McKenney
On Tue, Apr 02, 2019 at 11:34:07AM -0400, Mathieu Desnoyers wrote: > - On Apr 2, 2019, at 11:23 AM, paulmck paul...@linux.ibm.com wrote: > > > On Tue, Apr 02, 2019 at 11:14:40AM -0400, Mathieu Desnoyers wrote: > >> - On Apr 2, 2019, at 10:28 AM, paulmck paul...@linux.ibm.com wrote: > >>

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-03 Thread Paul E. McKenney
On Tue, Apr 02, 2019 at 02:40:54PM -0400, Joel Fernandes wrote: > On Tue, Apr 02, 2019 at 08:23:34AM -0700, Paul E. McKenney wrote: > > On Tue, Apr 02, 2019 at 11:14:40AM -0400, Mathieu Desnoyers wrote: > > > - On Apr 2, 2019, at 10:28 AM, paulmck paul...@linux.ibm.com wrote: > > > > > > >

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-02 Thread Joel Fernandes
On Tue, Apr 02, 2019 at 08:23:34AM -0700, Paul E. McKenney wrote: > On Tue, Apr 02, 2019 at 11:14:40AM -0400, Mathieu Desnoyers wrote: > > - On Apr 2, 2019, at 10:28 AM, paulmck paul...@linux.ibm.com wrote: > > > > > Hello! > > > > > > This series prohibits use of DEFINE_SRCU() and

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-02 Thread Paul E. McKenney
On Tue, Apr 02, 2019 at 11:14:40AM -0400, Mathieu Desnoyers wrote: > - On Apr 2, 2019, at 10:28 AM, paulmck paul...@linux.ibm.com wrote: > > > Hello! > > > > This series prohibits use of DEFINE_SRCU() and DEFINE_STATIC_SRCU() > > by loadable modules. The reason for this prohibition is the

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-02 Thread Mathieu Desnoyers
- On Apr 2, 2019, at 11:23 AM, paulmck paul...@linux.ibm.com wrote: > On Tue, Apr 02, 2019 at 11:14:40AM -0400, Mathieu Desnoyers wrote: >> - On Apr 2, 2019, at 10:28 AM, paulmck paul...@linux.ibm.com wrote: >> >> > Hello! >> > >> > This series prohibits use of DEFINE_SRCU() and

Re: [PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-02 Thread Mathieu Desnoyers
- On Apr 2, 2019, at 10:28 AM, paulmck paul...@linux.ibm.com wrote: > Hello! > > This series prohibits use of DEFINE_SRCU() and DEFINE_STATIC_SRCU() > by loadable modules. The reason for this prohibition is the fact > that using these two macros within modules requires that the size of >

[PATCH RFC tip/core/rcu 0/4] Forbid static SRCU use in modules

2019-04-02 Thread Paul E. McKenney
Hello! This series prohibits use of DEFINE_SRCU() and DEFINE_STATIC_SRCU() by loadable modules. The reason for this prohibition is the fact that using these two macros within modules requires that the size of the reserved region be increased, which is not something we want to be doing all that