diff options
Diffstat (limited to 'fs/proc_namespace.c')
| -rw-r--r-- | fs/proc_namespace.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c index 439406e081af..73ca1740d839 100644 --- a/fs/proc_namespace.c +++ b/fs/proc_namespace.c @@ -232,22 +232,15 @@ static int mounts_open_common(struct inode *inode, struct file *file, if (!task) goto err; - rcu_read_lock(); - nsp = task_nsproxy(task); - if (!nsp) { - rcu_read_unlock(); + task_lock(task); + nsp = task->nsproxy; + if (!nsp || !nsp->mnt_ns) { + task_unlock(task); put_task_struct(task); goto err; } ns = nsp->mnt_ns; - if (!ns) { - rcu_read_unlock(); - put_task_struct(task); - goto err; - } get_mnt_ns(ns); - rcu_read_unlock(); - task_lock(task); if (!task->fs) { task_unlock(task); put_task_struct(task); @@ -272,6 +265,7 @@ static int mounts_open_common(struct inode *inode, struct file *file, p->root = root; p->m.poll_event = ns->event; p->show = show; + p->cached_event = ~0ULL; return 0; |
