Converted to a mutex, and changed the name to mce_read_mutex.
Signed-off-by: Daniel Walker <[email protected]>
---
arch/x86/kernel/cpu/mcheck/mce_64.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
Index: linux-2.6.23/arch/x86/kernel/cpu/mcheck/mce_64.c
===================================================================
--- linux-2.6.23.orig/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ linux-2.6.23/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -564,7 +564,7 @@ static ssize_t mce_read(struct file *fil
loff_t *off)
{
unsigned long *cpu_tsc;
- static DECLARE_MUTEX(mce_read_sem);
+ static DEFINE_MUTEX(mce_read_mutex);
unsigned next;
char __user *buf = ubuf;
int i, err;
@@ -573,12 +573,12 @@ static ssize_t mce_read(struct file *fil
if (!cpu_tsc)
return -ENOMEM;
- down(&mce_read_sem);
+ mutex_lock(&mce_read_mutex);
next = rcu_dereference(mcelog.next);
/* Only supports full reads right now */
if (*off != 0 || usize < MCE_LOG_LEN*sizeof(struct mce)) {
- up(&mce_read_sem);
+ mutex_unlock(&mce_read_mutex);
kfree(cpu_tsc);
return -EINVAL;
}
@@ -621,7 +621,7 @@ static ssize_t mce_read(struct file *fil
memset(&mcelog.entry[i], 0, sizeof(struct mce));
}
}
- up(&mce_read_sem);
+ mutex_unlock(&mce_read_mutex);
kfree(cpu_tsc);
return err ? -EFAULT : buf - ubuf;
}
--
--
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