/**
* sys_acct - enable/disable process accounting
* @name: file name for accounting records or NULL to shutdown accounting
*
* Returns 0 for success or negative errno values for failure.
*
* sys_acct() is the only system call needed to implement process
* accounting. It takes the name of the file where accounting records
* should be written. If the filename is NULL, accounting will be
* shutdown.
*/
SYSCALL_DEFINE1(acct, const char __user *, name)
{
int error;
if (!capable(CAP_SYS_PACCT))
return -EPERM;
if (name) {
char *tmp = getname(name);
if (IS_ERR(tmp))
return (PTR_ERR(tmp));
error = acct_on(tmp);
putname(tmp);
} else {
struct bsd_acct_struct *acct;
acct = task_active_pid_ns(current)->bacct;
if (acct == NULL)
return 0;
error = security_acct(NULL);
if (!error) {
spin_lock(&acct_lock);
acct_file_reopen(acct, NULL, NULL);
spin_unlock(&acct_lock);
}
}
return error;
}
/**
* sys_acct - enable/disable process accounting
* @name: file name for accounting records or NULL to shutdown accounting
*
* Returns 0 for success or negative errno values for failure.
*
* sys_acct() is the only system call needed to implement process
* accounting. It takes the name of the file where accounting records
* should be written. If the filename is NULL, accounting will be
* shutdown.
*/
asmlinkage long sys_acct(const char __user *name)
{
int error;
if (!capable(CAP_SYS_PACCT))
return -EPERM;
if (name) {
char *tmp = getname(name);
if (IS_ERR(tmp))
return (PTR_ERR(tmp));
error = acct_on(tmp);
putname(tmp);
} else {
error = security_acct(NULL);
if (!error) {
spin_lock(&acct_globals.lock);
acct_file_reopen(NULL);
spin_unlock(&acct_globals.lock);
}
}
return error;
}
/**
* sys_acct - enable/disable process accounting
* @name: file name for accounting records or NULL to shutdown accounting
*
* Returns 0 for success or negative errno values for failure.
*
* sys_acct() is the only system call needed to implement process
* accounting. It takes the name of the file where accounting records
* should be written. If the filename is NULL, accounting will be
* shutdown.
*/
SYSCALL_DEFINE1(acct, const char __user *, name)
{
int error = 0;
if (!capable(CAP_SYS_PACCT))
return -EPERM;
if (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 {
rcu_read_lock();
pin_kill(task_active_pid_ns(current)->bacct);
}
return error;
}
