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Groups > linux.kernel > #1169908

[RFC][PATCH 07/13] sched: Reorder task_struct

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Fill some 4 byte holes by slightly re-ordering some variables.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 include/linux/sched.h |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1363,17 +1363,16 @@ struct task_struct {
 	atomic_t usage;
 	unsigned int flags;	/* per process flags, defined below */
 	unsigned int ptrace;
+	int on_rq;
 
 #ifdef CONFIG_SMP
 	struct llist_node wake_entry;
 	int on_cpu;
+	int wake_cpu;
 	struct task_struct *last_wakee;
 	unsigned long wakee_flips;
 	unsigned long wakee_flip_decay_ts;
-
-	int wake_cpu;
 #endif
-	int on_rq;
 
 	int prio, static_prio, normal_prio;
 	unsigned int rt_priority;


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[RFC][PATCH 00/13] percpu rwsem -v2 Peter Zijlstra <peterz@infradead.org> - 2015-06-22 14:30 +0200
  [RFC][PATCH 01/13] rcu: Create rcu_sync infrastructure Peter Zijlstra <peterz@infradead.org> - 2015-06-22 14:30 +0200
  [RFC][PATCH 05/13] percpu-rwsem: Optimize readers and reduce global impact Peter Zijlstra <peterz@infradead.org> - 2015-06-22 14:30 +0200
    Re: [RFC][PATCH 05/13] percpu-rwsem: Optimize readers and reduce  global impact Oleg Nesterov <oleg@redhat.com> - 2015-06-23 01:10 +0200
    Re: [RFC][PATCH 05/13] percpu-rwsem: Optimize readers and reduce  global impact Tejun Heo <tj@kernel.org> - 2015-06-29 17:20 +0200
      Re: [RFC][PATCH 05/13] percpu-rwsem: Optimize readers and reduce  global impact Peter Zijlstra <peterz@infradead.org> - 2015-06-29 17:20 +0200
  [RFC][PATCH 11/13] fs/locks: Replace lg_local with a per-cpu spinlock Peter Zijlstra <peterz@infradead.org> - 2015-06-22 14:30 +0200
    Re: [RFC][PATCH 11/13] fs/locks: Replace lg_local with a per-cpu  spinlock Oleg Nesterov <oleg@redhat.com> - 2015-06-23 02:30 +0200
  [RFC][PATCH 10/13] fs/locks: Replace lg_global with a percpu-rwsem Peter Zijlstra <peterz@infradead.org> - 2015-06-22 14:30 +0200
  [RFC][PATCH 12/13] stop_machine: Remove lglock Peter Zijlstra <peterz@infradead.org> - 2015-06-22 14:30 +0200
    Re: [RFC][PATCH 12/13] stop_machine: Remove lglock Oleg Nesterov <oleg@redhat.com> - 2015-06-23 00:30 +0200
      Re: [RFC][PATCH 12/13] stop_machine: Remove lglock "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2015-06-24 04:30 +0200
        Re: [RFC][PATCH 12/13] stop_machine: Remove lglock Peter Zijlstra <peterz@infradead.org> - 2015-06-24 10:40 +0200
      Re: [RFC][PATCH 12/13] stop_machine: Remove lglock Peter Zijlstra <peterz@infradead.org> - 2015-06-24 09:40 +0200
        Re: [RFC][PATCH 12/13] stop_machine: Remove lglock Ingo Molnar <mingo@kernel.org> - 2015-06-24 10:50 +0200
  [RFC][PATCH 13/13] locking: Remove lglock Peter Zijlstra <peterz@infradead.org> - 2015-06-22 14:30 +0200
  [RFC][PATCH 03/13] rcusync: Add the CONFIG_PROVE_RCU checks Peter Zijlstra <peterz@infradead.org> - 2015-06-22 14:30 +0200
  [RFC][PATCH 07/13] sched: Reorder task_struct Peter Zijlstra <peterz@infradead.org> - 2015-06-22 14:30 +0200
  Re: [RFC][PATCH 00/13] percpu rwsem -v2 Peter Zijlstra <peterz@infradead.org> - 2015-06-22 14:40 +0200
  Re: [RFC][PATCH 00/13] percpu rwsem -v2 Linus Torvalds <torvalds@linux-foundation.org> - 2015-06-22 22:10 +0200
  Re: [RFC][PATCH 00/13] percpu rwsem -v2 Ingo Molnar <mingo@kernel.org> - 2015-06-24 10:50 +0200
    Re: [RFC][PATCH 00/13] percpu rwsem -v2 Peter Zijlstra <peterz@infradead.org> - 2015-06-24 11:10 +0200
    Re: [RFC][PATCH 00/13] percpu rwsem -v2 Daniel Wagner <daniel.wagner@bmw-carit.de> - 2015-06-24 11:20 +0200
      Re: [RFC][PATCH 00/13] percpu rwsem -v2 Linus Torvalds <torvalds@linux-foundation.org> - 2015-07-02 00:00 +0200
        Re: [RFC][PATCH 00/13] percpu rwsem -v2 Peter Zijlstra <peterz@infradead.org> - 2015-07-02 11:50 +0200

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