diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-03-31 13:53:43 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-03-31 13:53:43 +0200 |
commit | 7bee946358c3cb957d4aa648fc5ab3cad0b232d0 (patch) | |
tree | 693061ebde2abc35ecc846e5084630d7225aaaff /drivers/oprofile/buffer_sync.c | |
parent | d820ac4c2fa881079e6b689d2098adce337558ae (diff) | |
parent | 15f7176eb1cccec0a332541285ee752b935c1c85 (diff) |
Merge branch 'linus' into locking-for-linus
Conflicts:
lib/Kconfig.debug
Diffstat (limited to 'drivers/oprofile/buffer_sync.c')
-rw-r--r-- | drivers/oprofile/buffer_sync.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c index 9da5a4b8113..2c9aa49e43c 100644 --- a/drivers/oprofile/buffer_sync.c +++ b/drivers/oprofile/buffer_sync.c @@ -38,7 +38,7 @@ static LIST_HEAD(dying_tasks); static LIST_HEAD(dead_tasks); -static cpumask_t marked_cpus = CPU_MASK_NONE; +static cpumask_var_t marked_cpus; static DEFINE_SPINLOCK(task_mortuary); static void process_task_mortuary(void); @@ -456,10 +456,10 @@ static void mark_done(int cpu) { int i; - cpu_set(cpu, marked_cpus); + cpumask_set_cpu(cpu, marked_cpus); for_each_online_cpu(i) { - if (!cpu_isset(i, marked_cpus)) + if (!cpumask_test_cpu(i, marked_cpus)) return; } @@ -468,7 +468,7 @@ static void mark_done(int cpu) */ process_task_mortuary(); - cpus_clear(marked_cpus); + cpumask_clear(marked_cpus); } @@ -565,6 +565,20 @@ void sync_buffer(int cpu) mutex_unlock(&buffer_mutex); } +int __init buffer_sync_init(void) +{ + if (!alloc_cpumask_var(&marked_cpus, GFP_KERNEL)) + return -ENOMEM; + + cpumask_clear(marked_cpus); + return 0; +} + +void buffer_sync_cleanup(void) +{ + free_cpumask_var(marked_cpus); +} + /* The function can be used to add a buffer worth of data directly to * the kernel buffer. The buffer is assumed to be a circular buffer. * Take the entries from index start and end at index end, wrapping |