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-rw-r--r--fs/kernfs/file.c23
1 files changed, 11 insertions, 12 deletions
diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
index dbf5bc250bfd..f8d5021a652e 100644
--- a/fs/kernfs/file.c
+++ b/fs/kernfs/file.c
@@ -857,7 +857,6 @@ static __poll_t kernfs_fop_poll(struct file *filp, poll_table *wait)
static void kernfs_notify_workfn(struct work_struct *work)
{
struct kernfs_node *kn;
- struct kernfs_open_node *on;
struct kernfs_super_info *info;
repeat:
/* pop one off the notify_list */
@@ -871,17 +870,6 @@ repeat:
kn->attr.notify_next = NULL;
spin_unlock_irq(&kernfs_notify_lock);
- /* kick poll */
- spin_lock_irq(&kernfs_open_node_lock);
-
- on = kn->attr.open;
- if (on) {
- atomic_inc(&on->event);
- wake_up_interruptible(&on->poll);
- }
-
- spin_unlock_irq(&kernfs_open_node_lock);
-
/* kick fsnotify */
mutex_lock(&kernfs_mutex);
@@ -934,10 +922,21 @@ void kernfs_notify(struct kernfs_node *kn)
{
static DECLARE_WORK(kernfs_notify_work, kernfs_notify_workfn);
unsigned long flags;
+ struct kernfs_open_node *on;
if (WARN_ON(kernfs_type(kn) != KERNFS_FILE))
return;
+ /* kick poll immediately */
+ spin_lock_irqsave(&kernfs_open_node_lock, flags);
+ on = kn->attr.open;
+ if (on) {
+ atomic_inc(&on->event);
+ wake_up_interruptible(&on->poll);
+ }
+ spin_unlock_irqrestore(&kernfs_open_node_lock, flags);
+
+ /* schedule work to kick fsnotify */
spin_lock_irqsave(&kernfs_notify_lock, flags);
if (!kn->attr.notify_next) {
kernfs_get(kn);