From 5ba08e2eeb06355f66ed62ae97bb87d145973a9a Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Wed, 28 Jul 2010 10:18:37 -0400 Subject: 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 --- fs/notify/notification.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'fs/notify/notification.c') diff --git a/fs/notify/notification.c b/fs/notify/notification.c index b35faafacd38..e6dde25fb99b 100644 --- a/fs/notify/notification.c +++ b/fs/notify/notification.c @@ -87,6 +87,8 @@ void fsnotify_put_event(struct fsnotify_event *event) return; if (atomic_dec_and_test(&event->refcnt)) { + pr_debug("%s: event=%p\n", __func__, event); + if (event->data_type == FSNOTIFY_EVENT_PATH) path_put(&event->path); @@ -146,6 +148,8 @@ int fsnotify_add_notify_event(struct fsnotify_group *group, struct fsnotify_even struct list_head *list = &group->notification_list; int rc = 0; + pr_debug("%s: group=%p event=%p priv=%p\n", __func__, group, event, priv); + /* * There is one fsnotify_event_holder embedded inside each fsnotify_event. * Check if we expect to be able to use that holder. If not alloc a new @@ -222,6 +226,8 @@ struct fsnotify_event *fsnotify_remove_notify_event(struct fsnotify_group *group BUG_ON(!mutex_is_locked(&group->notification_mutex)); + pr_debug("%s: group=%p\n", __func__, group); + holder = list_first_entry(&group->notification_list, struct fsnotify_event_holder, event_list); event = holder->event; @@ -307,6 +313,8 @@ int fsnotify_replace_event(struct fsnotify_event_holder *old_holder, SPINLOCK_NEW, }; + pr_debug("%s: old_event=%p new_event=%p\n", __func__, old_event, new_event); + /* * if the new_event's embedded holder is in use someone * screwed up and didn't give us a clean new event. @@ -340,6 +348,8 @@ struct fsnotify_event *fsnotify_clone_event(struct fsnotify_event *old_event) if (!event) return NULL; + pr_debug("%s: old_event=%p new_event=%p\n", __func__, old_event, event); + memcpy(event, old_event, sizeof(*event)); initialize_event(event); @@ -379,6 +389,9 @@ struct fsnotify_event *fsnotify_create_event(struct inode *to_tell, __u32 mask, if (!event) return NULL; + pr_debug("%s: event=%p to_tell=%p mask=%x data=%p data_type=%d\n", + __func__, event, to_tell, mask, data, data_type); + initialize_event(event); if (name) { -- cgit v1.2.3