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Merge branch 'core' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into perf/core 

Pull oprofile fixes from Robert Richter.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
hifive-unleashed-5.1
Ingo Molnar 2012-09-05 08:29:41 +02:00
parent ded86e7c8f 61bccf191f
commit bab57e994d
2 changed files with 8 additions and 13 deletions
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10
arch/s390/oprofile/init.c
View File

@ -169,7 +169,7 @@ static ssize_t hw_interval_write(struct file *file, char const __user *buf,
if (*offset)
return -EINVAL;
retval = oprofilefs_ulong_from_user(&val, buf, count);
if (retval)
if (retval <= 0)
return retval;
if (val < oprofile_min_interval)
oprofile_hw_interval = oprofile_min_interval;
@ -212,7 +212,7 @@ static ssize_t hwsampler_zero_write(struct file *file, char const __user *buf,
return -EINVAL;
retval = oprofilefs_ulong_from_user(&val, buf, count);
if (retval)
if (retval <= 0)
return retval;
if (val != 0)
return -EINVAL;
@ -243,7 +243,7 @@ static ssize_t hwsampler_kernel_write(struct file *file, char const __user *buf,
return -EINVAL;
retval = oprofilefs_ulong_from_user(&val, buf, count);
if (retval)
if (retval <= 0)
return retval;
if (val != 0 && val != 1)
@ -278,7 +278,7 @@ static ssize_t hwsampler_user_write(struct file *file, char const __user *buf,
return -EINVAL;
retval = oprofilefs_ulong_from_user(&val, buf, count);
if (retval)
if (retval <= 0)
return retval;
if (val != 0 && val != 1)
@ -317,7 +317,7 @@ static ssize_t timer_enabled_write(struct file *file, char const __user *buf,
return -EINVAL;
retval = oprofilefs_ulong_from_user(&val, buf, count);
if (retval)
if (retval <= 0)
return retval;
if (val != 0 && val != 1)

11
drivers/oprofile/cpu_buffer.c
View File

@ -451,14 +451,9 @@ static void wq_sync_buffer(struct work_struct *work)
{
struct oprofile_cpu_buffer *b =
container_of(work, struct oprofile_cpu_buffer, work.work);
if (b->cpu != smp_processor_id()) {
printk(KERN_DEBUG "WQ on CPU%d, prefer CPU%d\n",
smp_processor_id(), b->cpu);
if (!cpu_online(b->cpu)) {
cancel_delayed_work(&b->work);
return;
}
if (b->cpu != smp_processor_id() && !cpu_online(b->cpu)) {
cancel_delayed_work(&b->work);
return;
}
sync_buffer(b->cpu);