diff options
| -rw-r--r-- | kernel/acct.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/kernel/acct.c b/kernel/acct.c index 6fd375f15626..d9ebc96b1126 100644 --- a/kernel/acct.c +++ b/kernel/acct.c @@ -92,6 +92,8 @@ struct bsd_acct_struct { unsigned long needcheck; struct file *file; struct pid_namespace *ns; + struct work_struct work; + struct completion done; }; static void acct_free_rcu(struct rcu_head *head) @@ -176,15 +178,27 @@ again: return res; } +static void close_work(struct work_struct *work) +{ + struct bsd_acct_struct *acct = container_of(work, struct bsd_acct_struct, work); + struct file *file = acct->file; + mnt_unpin(file->f_path.mnt); + if (file->f_op->flush) + file->f_op->flush(file, NULL); + __fput_sync(file); + complete(&acct->done); +} + static void acct_kill(struct bsd_acct_struct *acct, struct bsd_acct_struct *new) { if (acct) { - struct file *file = acct->file; struct pid_namespace *ns = acct->ns; do_acct_process(acct); - mnt_unpin(file->f_path.mnt); - filp_close(file, NULL); + INIT_WORK(&acct->work, close_work); + init_completion(&acct->done); + schedule_work(&acct->work); + wait_for_completion(&acct->done); spin_lock(&acct_lock); hlist_del(&acct->m_list); hlist_del(&acct->s_list); |