fsnotify: add pr_debug throughout
It can be hard to debug fsnotify since there are so few printks. Use
pr_debug to allow for dynamic debugging.
Signed-off-by: Eric Paris <eparis@redhat.com>
diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
index 9d332e7..906b727 100644
--- a/fs/notify/inotify/inotify_fsnotify.c
+++ b/fs/notify/inotify/inotify_fsnotify.c
@@ -98,6 +98,9 @@
struct fsnotify_event_private_data *fsn_event_priv;
int wd, ret;
+ pr_debug("%s: group=%p event=%p to_tell=%p mask=%x\n", __func__, group,
+ event, event->to_tell, event->mask);
+
to_tell = event->to_tell;
fsn_mark = fsnotify_find_inode_mark(group, to_tell);
@@ -151,6 +154,9 @@
struct fsnotify_mark *fsn_mark;
bool send;
+ pr_debug("%s: group=%p inode=%p mask=%x data=%p data_type=%d\n",
+ __func__, group, inode, mask, data, data_type);
+
fsn_mark = fsnotify_find_inode_mark(group, inode);
if (!fsn_mark)
return false;
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 7dc940c..1068e1c 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -141,6 +141,8 @@
event = fsnotify_peek_notify_event(group);
+ pr_debug("%s: group=%p event=%p\n", __func__, group, event);
+
if (event->name_len)
event_size += roundup(event->name_len + 1, event_size);
@@ -170,6 +172,8 @@
size_t event_size = sizeof(struct inotify_event);
size_t name_len = 0;
+ pr_debug("%s: group=%p event=%p\n", __func__, group, event);
+
/* we get the inotify watch descriptor from the event private data */
spin_lock(&event->lock);
fsn_priv = fsnotify_remove_priv_from_event(group, event);
@@ -242,6 +246,8 @@
kevent = get_one_event(group, count);
mutex_unlock(&group->notification_mutex);
+ pr_debug("%s: group=%p kevent=%p\n", __func__, group, kevent);
+
if (kevent) {
ret = PTR_ERR(kevent);
if (IS_ERR(kevent))
@@ -286,6 +292,8 @@
struct fsnotify_group *group = file->private_data;
struct user_struct *user = group->inotify_data.user;
+ pr_debug("%s: group=%p\n", __func__, group);
+
fsnotify_clear_marks_by_group(group);
/* free this group, matching get was inotify_init->fsnotify_obtain_group */
@@ -309,6 +317,8 @@
group = file->private_data;
p = (void __user *) arg;
+ pr_debug("%s: group=%p cmd=%u\n", __func__, group, cmd);
+
switch (cmd) {
case FIONREAD:
mutex_lock(&group->notification_mutex);