diff options
Diffstat (limited to 'kernel/acct.c')
| -rw-r--r-- | kernel/acct.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/acct.c b/kernel/acct.c index 87773725a0dc..08963a292878 100644 --- a/kernel/acct.c +++ b/kernel/acct.c @@ -241,6 +241,8 @@ static int acct_on(struct filename *pathname) return 0; } +static DEFINE_MUTEX(acct_on_mutex); + /** * sys_acct - enable/disable process accounting * @name: file name for accounting records or NULL to shutdown accounting @@ -263,7 +265,9 @@ SYSCALL_DEFINE1(acct, const char __user *, name) struct filename *tmp = getname(name); if (IS_ERR(tmp)) return PTR_ERR(tmp); + mutex_lock(&acct_on_mutex); error = acct_on(tmp); + mutex_unlock(&acct_on_mutex); putname(tmp); } else { struct bsd_acct_struct *acct; |