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-rw-r--r--kernel/acct.c47
1 files changed, 14 insertions, 33 deletions
diff --git a/kernel/acct.c b/kernel/acct.c
index a6605ca921b..385b88461c2 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -216,7 +216,6 @@ static int acct_on(char *name)
{
struct file *file;
struct vfsmount *mnt;
- int error;
struct pid_namespace *ns;
struct bsd_acct_struct *acct = NULL;
@@ -244,13 +243,6 @@ static int acct_on(char *name)
}
}
- error = security_acct(file);
- if (error) {
- kfree(acct);
- filp_close(file, NULL);
- return error;
- }
-
spin_lock(&acct_lock);
if (ns->bacct == NULL) {
ns->bacct = acct;
@@ -281,7 +273,7 @@ static int acct_on(char *name)
*/
SYSCALL_DEFINE1(acct, const char __user *, name)
{
- int error;
+ int error = 0;
if (!capable(CAP_SYS_PACCT))
return -EPERM;
@@ -299,13 +291,11 @@ SYSCALL_DEFINE1(acct, const char __user *, name)
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);
- }
+ spin_lock(&acct_lock);
+ acct_file_reopen(acct, NULL, NULL);
+ spin_unlock(&acct_lock);
}
+
return error;
}
@@ -353,17 +343,18 @@ restart:
void acct_exit_ns(struct pid_namespace *ns)
{
- struct bsd_acct_struct *acct;
+ struct bsd_acct_struct *acct = ns->bacct;
- spin_lock(&acct_lock);
- acct = ns->bacct;
- if (acct != NULL) {
- if (acct->file != NULL)
- acct_file_reopen(acct, NULL, NULL);
+ if (acct == NULL)
+ return;
- kfree(acct);
- }
+ del_timer_sync(&acct->timer);
+ spin_lock(&acct_lock);
+ if (acct->file != NULL)
+ acct_file_reopen(acct, NULL, NULL);
spin_unlock(&acct_lock);
+
+ kfree(acct);
}
/*
@@ -588,16 +579,6 @@ out:
}
/**
- * acct_init_pacct - initialize a new pacct_struct
- * @pacct: per-process accounting info struct to initialize
- */
-void acct_init_pacct(struct pacct_struct *pacct)
-{
- memset(pacct, 0, sizeof(struct pacct_struct));
- pacct->ac_utime = pacct->ac_stime = cputime_zero;
-}
-
-/**
* acct_collect - collect accounting information into pacct_struct
* @exitcode: task exit code
* @group_dead: not 0, if this thread is the last one in the process.