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| author | Ingo Molnar <mingo@elte.hu> | 2008-08-11 13:34:15 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-11 13:35:18 +0200 |
| commit | 78635fc739b1254f3e0362ac430edbdd2cff01dc (patch) | |
| tree | 9cb480451f63260951b4b46d3b6026934174c39c /kernel/rcuclassic.c | |
| parent | 67182ae1c42206e516f7efb292b745e826497b24 (diff) | |
| download | linux-78635fc739b1254f3e0362ac430edbdd2cff01dc.tar.gz linux-78635fc739b1254f3e0362ac430edbdd2cff01dc.tar.bz2 linux-78635fc739b1254f3e0362ac430edbdd2cff01dc.zip | |
rcu, debug: detect stalled grace periods, cleanups
small cleanups.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/rcuclassic.c')
| -rw-r--r-- | kernel/rcuclassic.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/kernel/rcuclassic.c b/kernel/rcuclassic.c index d7ec731de75c..56b8712fe5aa 100644 --- a/kernel/rcuclassic.c +++ b/kernel/rcuclassic.c @@ -294,6 +294,7 @@ static inline void record_gp_check_time(struct rcu_ctrlblk *rcp) { rcp->gp_check = get_seconds() + 3; } + static void print_other_cpu_stall(struct rcu_ctrlblk *rcp) { int cpu; @@ -303,11 +304,9 @@ static void print_other_cpu_stall(struct rcu_ctrlblk *rcp) spin_lock(&rcp->lock); delta = get_seconds() - rcp->gp_check; - if (delta < 2L || - cpus_empty(rcp->cpumask)) { + if (delta < 2L || cpus_empty(rcp->cpumask)) { spin_unlock(&rcp->lock); return; - rcp->gp_check = get_seconds() + 30; } spin_unlock(&rcp->lock); @@ -319,6 +318,7 @@ static void print_other_cpu_stall(struct rcu_ctrlblk *rcp) printk(" (detected by %d, t=%lu/%lu)\n", smp_processor_id(), get_seconds(), rcp->gp_check); } + static void print_cpu_stall(struct rcu_ctrlblk *rcp) { printk(KERN_ERR "RCU detected CPU %d stall (t=%lu/%lu)\n", @@ -329,8 +329,8 @@ static void print_cpu_stall(struct rcu_ctrlblk *rcp) rcp->gp_check = get_seconds() + 30; spin_unlock(&rcp->lock); } -static inline void check_cpu_stall(struct rcu_ctrlblk *rcp, - struct rcu_data *rdp) + +static void check_cpu_stall(struct rcu_ctrlblk *rcp, struct rcu_data *rdp) { long delta; @@ -341,12 +341,11 @@ static inline void check_cpu_stall(struct rcu_ctrlblk *rcp, print_cpu_stall(rcp); - } else if (!cpus_empty(rcp->cpumask) && delta >= 2L) { - - /* They had two seconds to dump stack, so complain. */ - - print_other_cpu_stall(rcp); - + } else { + if (!cpus_empty(rcp->cpumask) && delta >= 2L) { + /* They had two seconds to dump stack, so complain. */ + print_other_cpu_stall(rcp); + } } } @@ -355,8 +354,9 @@ static inline void check_cpu_stall(struct rcu_ctrlblk *rcp, static inline void record_gp_check_time(struct rcu_ctrlblk *rcp) { } -static inline void check_cpu_stall(struct rcu_ctrlblk *rcp, - struct rcu_data *rdp) + +static inline void +check_cpu_stall(struct rcu_ctrlblk *rcp, struct rcu_data *rdp) { } |