Re: [GIT PULL rcu/next] RCU commits for 3.8
* Paul E. McKenney wrote: > Hello, Ingo, > > The major features of this series are: > > 1.A first version of no-callbacks CPUs. This version prohibits > offlining CPU 0, but only when enabled via CONFIG_RCU_NOCB_CPU=y. > Relaxing this constraint is in progress, but not yet ready > for prime time. These commits were posted to LKML at > https://lkml.org/lkml/2012/10/30/724, and are at branch rcu/nocb. > > 2.Changes to SRCU that allows statically initialized srcu_struct > structures. These commits were posted to LKML at > https://lkml.org/lkml/2012/10/30/296, and are at branch rcu/srcu. > > 3.Restructuring of RCU's debugfs output. These commits were posted > to LKML at https://lkml.org/lkml/2012/10/30/341, and are at > branch rcu/tracing. > > 4.Additional CPU-hotplug/RCU improvements, posted to LKML at > https://lkml.org/lkml/2012/10/30/327, and are at branch rcu/hotplug. > Note that the commit eliminating __stop_machine() was judged to > be too-high of risk, so is deferred to 3.9. > > 5.Changes to RCU's idle interface, most notably a new module > parameter that redirects normal grace-period operations to > their expedited equivalents. These were posted to LKML at > https://lkml.org/lkml/2012/10/30/739, and are at branch rcu/idle. > > 6.Additional diagnostics for RCU's CPU stall warning facility, > posted to LKML at https://lkml.org/lkml/2012/10/30/315, and > are at branch rcu/stall. The most notable change reduces the > default RCU CPU stall-warning time from 60 seconds to 21 seconds, > so that it once again happens sooner than the softlockup timeout. > > 7.Documentation updates, which were posted to LKML at > https://lkml.org/lkml/2012/10/30/280, and are at branch rcu/doc. > A couple of late-breaking changes were posted at > https://lkml.org/lkml/2012/11/16/634 and > https://lkml.org/lkml/2012/11/16/547. > > 8.Miscellaneous fixes, which were posted to LKML at > https://lkml.org/lkml/2012/10/30/309, along with a late-breaking > change posted at Fri, 16 Nov 2012 11:26:25 -0800 with message-ID > <20121116192625.ga...@linux.vnet.ibm.com>, but which lkml.org > seems to have missed. These are at branch rcu/fixes. > > 9.Finally, a fix for an lockdep-RCU splat was posted to LKML > at https://lkml.org/lkml/2012/11/7/486. This is at rcu/next. > > All executable code in these commits have been subject to -next testing. > (Fixes to trailing whitespace problems in one of the Documentation files > has not yet been, but as far as I know -next testing does not do anything > with Documentation files -- and testing will happen as soon as -next testing > restarts.) > > These changes are available in the git repository at: > git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/next > > Thanx, Paul > > --> > Antti P Miettinen (1): > rcu: Add a module parameter to force use of expedited RCU primitives > > Dhaval Giani (1): > rcu: Correct the name of a reference in list of RCU papers > > Eric Dumazet (1): > rcu: Fix batch-limit size problem > > Frederic Weisbecker (2): > rcu: Remove rcu_switch() > rcu: Fix unrecovered RCU user mode in syscall_trace_leave() > > Kees Cook (1): > rcu: Update docs to include kfree_rcu() > > Lai Jiangshan (4): > srcu: Credit Lai Jiangshan with SRCU rewrite > srcu: Export process_srcu() > srcu: Add DEFINE_SRCU() > rcutorture: Use DEFINE_STATIC_SRCU() > > Michael Wang (12): > rcu: Create directory for each flavor of rcu > rcu: Fundamental facility for 'CPU units sequence reading' > rcu: Optimize the 'rcudata' for RCU trace > rcu: Optimize the 'rcudata.csv' for RCU trace > rcu: Optimize the 'rcu_pending' for RCU trace > rcu: Replace the old interface with the new one > rcu: Remove the interface "rcudata.csv" > rcu: split 'rcubarrier' to each flavor > rcu: split 'rcuboost' to each flavor > rcu: split 'rcugp' to each flavor > rcu: split 'rcuhier' to each flavor > rcu: Remove old debugfs interfaces and also RCU flavor name > > Paul E. McKenney (27): > rcu: Accelerate callbacks for CPU initiating a grace period > Documentation: Fix memory-barriers.txt example > rcu: Fix comment about _rcu_barrier()/orphanage exclusion > rcu: Make rcutorture give diagnostics if CPU offline fails > rcu: Update RCU_FAST_NO_HZ help text > rcu: Fix precedence error in cpu_needs_another_gp() > rcu: Print remote CPU's stacks in stall warnings > rcu: Add grace-period information to RCU CPU stall warnings > rcu: Dump number of callbacks in stall warning messages > rcu: Document alternative RCU/reference-count algorithms >
Re: [GIT PULL rcu/next] RCU commits for 3.8
* Paul E. McKenney paul...@linux.vnet.ibm.com wrote: Hello, Ingo, The major features of this series are: 1.A first version of no-callbacks CPUs. This version prohibits offlining CPU 0, but only when enabled via CONFIG_RCU_NOCB_CPU=y. Relaxing this constraint is in progress, but not yet ready for prime time. These commits were posted to LKML at https://lkml.org/lkml/2012/10/30/724, and are at branch rcu/nocb. 2.Changes to SRCU that allows statically initialized srcu_struct structures. These commits were posted to LKML at https://lkml.org/lkml/2012/10/30/296, and are at branch rcu/srcu. 3.Restructuring of RCU's debugfs output. These commits were posted to LKML at https://lkml.org/lkml/2012/10/30/341, and are at branch rcu/tracing. 4.Additional CPU-hotplug/RCU improvements, posted to LKML at https://lkml.org/lkml/2012/10/30/327, and are at branch rcu/hotplug. Note that the commit eliminating __stop_machine() was judged to be too-high of risk, so is deferred to 3.9. 5.Changes to RCU's idle interface, most notably a new module parameter that redirects normal grace-period operations to their expedited equivalents. These were posted to LKML at https://lkml.org/lkml/2012/10/30/739, and are at branch rcu/idle. 6.Additional diagnostics for RCU's CPU stall warning facility, posted to LKML at https://lkml.org/lkml/2012/10/30/315, and are at branch rcu/stall. The most notable change reduces the default RCU CPU stall-warning time from 60 seconds to 21 seconds, so that it once again happens sooner than the softlockup timeout. 7.Documentation updates, which were posted to LKML at https://lkml.org/lkml/2012/10/30/280, and are at branch rcu/doc. A couple of late-breaking changes were posted at https://lkml.org/lkml/2012/11/16/634 and https://lkml.org/lkml/2012/11/16/547. 8.Miscellaneous fixes, which were posted to LKML at https://lkml.org/lkml/2012/10/30/309, along with a late-breaking change posted at Fri, 16 Nov 2012 11:26:25 -0800 with message-ID 20121116192625.ga...@linux.vnet.ibm.com, but which lkml.org seems to have missed. These are at branch rcu/fixes. 9.Finally, a fix for an lockdep-RCU splat was posted to LKML at https://lkml.org/lkml/2012/11/7/486. This is at rcu/next. All executable code in these commits have been subject to -next testing. (Fixes to trailing whitespace problems in one of the Documentation files has not yet been, but as far as I know -next testing does not do anything with Documentation files -- and testing will happen as soon as -next testing restarts.) These changes are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/next Thanx, Paul -- Antti P Miettinen (1): rcu: Add a module parameter to force use of expedited RCU primitives Dhaval Giani (1): rcu: Correct the name of a reference in list of RCU papers Eric Dumazet (1): rcu: Fix batch-limit size problem Frederic Weisbecker (2): rcu: Remove rcu_switch() rcu: Fix unrecovered RCU user mode in syscall_trace_leave() Kees Cook (1): rcu: Update docs to include kfree_rcu() Lai Jiangshan (4): srcu: Credit Lai Jiangshan with SRCU rewrite srcu: Export process_srcu() srcu: Add DEFINE_SRCU() rcutorture: Use DEFINE_STATIC_SRCU() Michael Wang (12): rcu: Create directory for each flavor of rcu rcu: Fundamental facility for 'CPU units sequence reading' rcu: Optimize the 'rcudata' for RCU trace rcu: Optimize the 'rcudata.csv' for RCU trace rcu: Optimize the 'rcu_pending' for RCU trace rcu: Replace the old interface with the new one rcu: Remove the interface rcudata.csv rcu: split 'rcubarrier' to each flavor rcu: split 'rcuboost' to each flavor rcu: split 'rcugp' to each flavor rcu: split 'rcuhier' to each flavor rcu: Remove old debugfs interfaces and also RCU flavor name Paul E. McKenney (27): rcu: Accelerate callbacks for CPU initiating a grace period Documentation: Fix memory-barriers.txt example rcu: Fix comment about _rcu_barrier()/orphanage exclusion rcu: Make rcutorture give diagnostics if CPU offline fails rcu: Update RCU_FAST_NO_HZ help text rcu: Fix precedence error in cpu_needs_another_gp() rcu: Print remote CPU's stacks in stall warnings rcu: Add grace-period information to RCU CPU stall warnings rcu: Dump number of callbacks in stall warning messages rcu: Document alternative RCU/reference-count algorithms rcu: Rename -onofflock to -orphan_lock rcu: Avoid counter wrap in
[GIT PULL rcu/next] RCU commits for 3.8
Hello, Ingo, The major features of this series are: 1. A first version of no-callbacks CPUs. This version prohibits offlining CPU 0, but only when enabled via CONFIG_RCU_NOCB_CPU=y. Relaxing this constraint is in progress, but not yet ready for prime time. These commits were posted to LKML at https://lkml.org/lkml/2012/10/30/724, and are at branch rcu/nocb. 2. Changes to SRCU that allows statically initialized srcu_struct structures. These commits were posted to LKML at https://lkml.org/lkml/2012/10/30/296, and are at branch rcu/srcu. 3. Restructuring of RCU's debugfs output. These commits were posted to LKML at https://lkml.org/lkml/2012/10/30/341, and are at branch rcu/tracing. 4. Additional CPU-hotplug/RCU improvements, posted to LKML at https://lkml.org/lkml/2012/10/30/327, and are at branch rcu/hotplug. Note that the commit eliminating __stop_machine() was judged to be too-high of risk, so is deferred to 3.9. 5. Changes to RCU's idle interface, most notably a new module parameter that redirects normal grace-period operations to their expedited equivalents. These were posted to LKML at https://lkml.org/lkml/2012/10/30/739, and are at branch rcu/idle. 6. Additional diagnostics for RCU's CPU stall warning facility, posted to LKML at https://lkml.org/lkml/2012/10/30/315, and are at branch rcu/stall. The most notable change reduces the default RCU CPU stall-warning time from 60 seconds to 21 seconds, so that it once again happens sooner than the softlockup timeout. 7. Documentation updates, which were posted to LKML at https://lkml.org/lkml/2012/10/30/280, and are at branch rcu/doc. A couple of late-breaking changes were posted at https://lkml.org/lkml/2012/11/16/634 and https://lkml.org/lkml/2012/11/16/547. 8. Miscellaneous fixes, which were posted to LKML at https://lkml.org/lkml/2012/10/30/309, along with a late-breaking change posted at Fri, 16 Nov 2012 11:26:25 -0800 with message-ID <20121116192625.ga...@linux.vnet.ibm.com>, but which lkml.org seems to have missed. These are at branch rcu/fixes. 9. Finally, a fix for an lockdep-RCU splat was posted to LKML at https://lkml.org/lkml/2012/11/7/486. This is at rcu/next. All executable code in these commits have been subject to -next testing. (Fixes to trailing whitespace problems in one of the Documentation files has not yet been, but as far as I know -next testing does not do anything with Documentation files -- and testing will happen as soon as -next testing restarts.) These changes are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/next Thanx, Paul --> Antti P Miettinen (1): rcu: Add a module parameter to force use of expedited RCU primitives Dhaval Giani (1): rcu: Correct the name of a reference in list of RCU papers Eric Dumazet (1): rcu: Fix batch-limit size problem Frederic Weisbecker (2): rcu: Remove rcu_switch() rcu: Fix unrecovered RCU user mode in syscall_trace_leave() Kees Cook (1): rcu: Update docs to include kfree_rcu() Lai Jiangshan (4): srcu: Credit Lai Jiangshan with SRCU rewrite srcu: Export process_srcu() srcu: Add DEFINE_SRCU() rcutorture: Use DEFINE_STATIC_SRCU() Michael Wang (12): rcu: Create directory for each flavor of rcu rcu: Fundamental facility for 'CPU units sequence reading' rcu: Optimize the 'rcudata' for RCU trace rcu: Optimize the 'rcudata.csv' for RCU trace rcu: Optimize the 'rcu_pending' for RCU trace rcu: Replace the old interface with the new one rcu: Remove the interface "rcudata.csv" rcu: split 'rcubarrier' to each flavor rcu: split 'rcuboost' to each flavor rcu: split 'rcugp' to each flavor rcu: split 'rcuhier' to each flavor rcu: Remove old debugfs interfaces and also RCU flavor name Paul E. McKenney (27): rcu: Accelerate callbacks for CPU initiating a grace period Documentation: Fix memory-barriers.txt example rcu: Fix comment about _rcu_barrier()/orphanage exclusion rcu: Make rcutorture give diagnostics if CPU offline fails rcu: Update RCU_FAST_NO_HZ help text rcu: Fix precedence error in cpu_needs_another_gp() rcu: Print remote CPU's stacks in stall warnings rcu: Add grace-period information to RCU CPU stall warnings rcu: Dump number of callbacks in stall warning messages rcu: Document alternative RCU/reference-count algorithms rcu: Rename ->onofflock to ->orphan_lock rcu: Avoid counter wrap in synchronize_sched_expedited() rcu: Move synchronize_sched_expedited() state to rcu_state
[GIT PULL rcu/next] RCU commits for 3.8
Hello, Ingo, The major features of this series are: 1. A first version of no-callbacks CPUs. This version prohibits offlining CPU 0, but only when enabled via CONFIG_RCU_NOCB_CPU=y. Relaxing this constraint is in progress, but not yet ready for prime time. These commits were posted to LKML at https://lkml.org/lkml/2012/10/30/724, and are at branch rcu/nocb. 2. Changes to SRCU that allows statically initialized srcu_struct structures. These commits were posted to LKML at https://lkml.org/lkml/2012/10/30/296, and are at branch rcu/srcu. 3. Restructuring of RCU's debugfs output. These commits were posted to LKML at https://lkml.org/lkml/2012/10/30/341, and are at branch rcu/tracing. 4. Additional CPU-hotplug/RCU improvements, posted to LKML at https://lkml.org/lkml/2012/10/30/327, and are at branch rcu/hotplug. Note that the commit eliminating __stop_machine() was judged to be too-high of risk, so is deferred to 3.9. 5. Changes to RCU's idle interface, most notably a new module parameter that redirects normal grace-period operations to their expedited equivalents. These were posted to LKML at https://lkml.org/lkml/2012/10/30/739, and are at branch rcu/idle. 6. Additional diagnostics for RCU's CPU stall warning facility, posted to LKML at https://lkml.org/lkml/2012/10/30/315, and are at branch rcu/stall. The most notable change reduces the default RCU CPU stall-warning time from 60 seconds to 21 seconds, so that it once again happens sooner than the softlockup timeout. 7. Documentation updates, which were posted to LKML at https://lkml.org/lkml/2012/10/30/280, and are at branch rcu/doc. A couple of late-breaking changes were posted at https://lkml.org/lkml/2012/11/16/634 and https://lkml.org/lkml/2012/11/16/547. 8. Miscellaneous fixes, which were posted to LKML at https://lkml.org/lkml/2012/10/30/309, along with a late-breaking change posted at Fri, 16 Nov 2012 11:26:25 -0800 with message-ID 20121116192625.ga...@linux.vnet.ibm.com, but which lkml.org seems to have missed. These are at branch rcu/fixes. 9. Finally, a fix for an lockdep-RCU splat was posted to LKML at https://lkml.org/lkml/2012/11/7/486. This is at rcu/next. All executable code in these commits have been subject to -next testing. (Fixes to trailing whitespace problems in one of the Documentation files has not yet been, but as far as I know -next testing does not do anything with Documentation files -- and testing will happen as soon as -next testing restarts.) These changes are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/next Thanx, Paul -- Antti P Miettinen (1): rcu: Add a module parameter to force use of expedited RCU primitives Dhaval Giani (1): rcu: Correct the name of a reference in list of RCU papers Eric Dumazet (1): rcu: Fix batch-limit size problem Frederic Weisbecker (2): rcu: Remove rcu_switch() rcu: Fix unrecovered RCU user mode in syscall_trace_leave() Kees Cook (1): rcu: Update docs to include kfree_rcu() Lai Jiangshan (4): srcu: Credit Lai Jiangshan with SRCU rewrite srcu: Export process_srcu() srcu: Add DEFINE_SRCU() rcutorture: Use DEFINE_STATIC_SRCU() Michael Wang (12): rcu: Create directory for each flavor of rcu rcu: Fundamental facility for 'CPU units sequence reading' rcu: Optimize the 'rcudata' for RCU trace rcu: Optimize the 'rcudata.csv' for RCU trace rcu: Optimize the 'rcu_pending' for RCU trace rcu: Replace the old interface with the new one rcu: Remove the interface rcudata.csv rcu: split 'rcubarrier' to each flavor rcu: split 'rcuboost' to each flavor rcu: split 'rcugp' to each flavor rcu: split 'rcuhier' to each flavor rcu: Remove old debugfs interfaces and also RCU flavor name Paul E. McKenney (27): rcu: Accelerate callbacks for CPU initiating a grace period Documentation: Fix memory-barriers.txt example rcu: Fix comment about _rcu_barrier()/orphanage exclusion rcu: Make rcutorture give diagnostics if CPU offline fails rcu: Update RCU_FAST_NO_HZ help text rcu: Fix precedence error in cpu_needs_another_gp() rcu: Print remote CPU's stacks in stall warnings rcu: Add grace-period information to RCU CPU stall warnings rcu: Dump number of callbacks in stall warning messages rcu: Document alternative RCU/reference-count algorithms rcu: Rename -onofflock to -orphan_lock rcu: Avoid counter wrap in synchronize_sched_expedited() rcu: Move synchronize_sched_expedited() state to rcu_state rcu:
