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author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-09-16 13:10:44 -0400 |
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committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-09-16 13:10:44 -0400 |
commit | 96b4672703ed4538c7fc25de36df4415a0ee237c (patch) | |
tree | e5bb8f4c3eb41c5741a7b232cff8e502f6509fc3 /kernel/rcu/tiny.c | |
parent | e98d06dd6cd791b5138b0fc6c14a9c0b4d1f2e72 (diff) | |
parent | a53dd6a65668850493cce94395c1b88a015eb338 (diff) |
Merge branch 'rcu-tasks.2014.09.10a' into HEAD
rcu-tasks.2014.09.10a: Add RCU-tasks flavor of RCU.
Diffstat (limited to 'kernel/rcu/tiny.c')
-rw-r--r-- | kernel/rcu/tiny.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/kernel/rcu/tiny.c b/kernel/rcu/tiny.c index 4a55a2416e3c..c0623fc47125 100644 --- a/kernel/rcu/tiny.c +++ b/kernel/rcu/tiny.c | |||
@@ -72,7 +72,7 @@ static void rcu_idle_enter_common(long long newval) | |||
72 | current->pid, current->comm, | 72 | current->pid, current->comm, |
73 | idle->pid, idle->comm); /* must be idle task! */ | 73 | idle->pid, idle->comm); /* must be idle task! */ |
74 | } | 74 | } |
75 | rcu_sched_qs(0); /* implies rcu_bh_qsctr_inc(0) */ | 75 | rcu_sched_qs(); /* implies rcu_bh_inc() */ |
76 | barrier(); | 76 | barrier(); |
77 | rcu_dynticks_nesting = newval; | 77 | rcu_dynticks_nesting = newval; |
78 | } | 78 | } |
@@ -217,7 +217,7 @@ static int rcu_qsctr_help(struct rcu_ctrlblk *rcp) | |||
217 | * are at it, given that any rcu quiescent state is also an rcu_bh | 217 | * are at it, given that any rcu quiescent state is also an rcu_bh |
218 | * quiescent state. Use "+" instead of "||" to defeat short circuiting. | 218 | * quiescent state. Use "+" instead of "||" to defeat short circuiting. |
219 | */ | 219 | */ |
220 | void rcu_sched_qs(int cpu) | 220 | void rcu_sched_qs(void) |
221 | { | 221 | { |
222 | unsigned long flags; | 222 | unsigned long flags; |
223 | 223 | ||
@@ -231,7 +231,7 @@ void rcu_sched_qs(int cpu) | |||
231 | /* | 231 | /* |
232 | * Record an rcu_bh quiescent state. | 232 | * Record an rcu_bh quiescent state. |
233 | */ | 233 | */ |
234 | void rcu_bh_qs(int cpu) | 234 | void rcu_bh_qs(void) |
235 | { | 235 | { |
236 | unsigned long flags; | 236 | unsigned long flags; |
237 | 237 | ||
@@ -251,9 +251,11 @@ void rcu_check_callbacks(int cpu, int user) | |||
251 | { | 251 | { |
252 | RCU_TRACE(check_cpu_stalls()); | 252 | RCU_TRACE(check_cpu_stalls()); |
253 | if (user || rcu_is_cpu_rrupt_from_idle()) | 253 | if (user || rcu_is_cpu_rrupt_from_idle()) |
254 | rcu_sched_qs(cpu); | 254 | rcu_sched_qs(); |
255 | else if (!in_softirq()) | 255 | else if (!in_softirq()) |
256 | rcu_bh_qs(cpu); | 256 | rcu_bh_qs(); |
257 | if (user) | ||
258 | rcu_note_voluntary_context_switch(current); | ||
257 | } | 259 | } |
258 | 260 | ||
259 | /* | 261 | /* |