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authorAndrea Bastoni <bastoni@cs.unc.edu>2011-08-27 09:43:54 -0400
committerAndrea Bastoni <bastoni@cs.unc.edu>2011-08-27 10:06:11 -0400
commit7b1bb388bc879ffcc6c69b567816d5c354afe42b (patch)
tree5a217fdfb0b5e5a327bdcd624506337c1ae1fe32 /kernel/padata.c
parent7d754596756240fa918b94cd0c3011c77a638987 (diff)
parent02f8c6aee8df3cdc935e9bdd4f2d020306035dbe (diff)
Merge 'Linux v3.0' into Litmus
Some notes: * Litmus^RT scheduling class is the topmost scheduling class (above stop_sched_class). * scheduler_ipi() function (e.g., in smp_reschedule_interrupt()) may increase IPI latencies. * Added path into schedule() to quickly re-evaluate scheduling decision without becoming preemptive again. This used to be a standard path before the removal of BKL. Conflicts: Makefile arch/arm/kernel/calls.S arch/arm/kernel/smp.c arch/x86/include/asm/unistd_32.h arch/x86/kernel/smp.c arch/x86/kernel/syscall_table_32.S include/linux/hrtimer.h kernel/printk.c kernel/sched.c kernel/sched_fair.c
Diffstat (limited to 'kernel/padata.c')
-rw-r--r--kernel/padata.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/padata.c b/kernel/padata.c
index 751019415d23..b91941df5e63 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -262,7 +262,7 @@ static void padata_reorder(struct parallel_data *pd)
262 /* 262 /*
263 * This cpu has to do the parallel processing of the next 263 * This cpu has to do the parallel processing of the next
264 * object. It's waiting in the cpu's parallelization queue, 264 * object. It's waiting in the cpu's parallelization queue,
265 * so exit imediately. 265 * so exit immediately.
266 */ 266 */
267 if (PTR_ERR(padata) == -ENODATA) { 267 if (PTR_ERR(padata) == -ENODATA) {
268 del_timer(&pd->timer); 268 del_timer(&pd->timer);
@@ -284,7 +284,7 @@ static void padata_reorder(struct parallel_data *pd)
284 /* 284 /*
285 * The next object that needs serialization might have arrived to 285 * The next object that needs serialization might have arrived to
286 * the reorder queues in the meantime, we will be called again 286 * the reorder queues in the meantime, we will be called again
287 * from the timer function if noone else cares for it. 287 * from the timer function if no one else cares for it.
288 */ 288 */
289 if (atomic_read(&pd->reorder_objects) 289 if (atomic_read(&pd->reorder_objects)
290 && !(pinst->flags & PADATA_RESET)) 290 && !(pinst->flags & PADATA_RESET))
@@ -515,7 +515,7 @@ static void __padata_stop(struct padata_instance *pinst)
515 put_online_cpus(); 515 put_online_cpus();
516} 516}
517 517
518/* Replace the internal control stucture with a new one. */ 518/* Replace the internal control structure with a new one. */
519static void padata_replace(struct padata_instance *pinst, 519static void padata_replace(struct padata_instance *pinst,
520 struct parallel_data *pd_new) 520 struct parallel_data *pd_new)
521{ 521{
@@ -768,7 +768,7 @@ static int __padata_remove_cpu(struct padata_instance *pinst, int cpu)
768} 768}
769 769
770 /** 770 /**
771 * padata_remove_cpu - remove a cpu from the one or both(serial and paralell) 771 * padata_remove_cpu - remove a cpu from the one or both(serial and parallel)
772 * padata cpumasks. 772 * padata cpumasks.
773 * 773 *
774 * @pinst: padata instance 774 * @pinst: padata instance