diff options
| -rw-r--r-- | fs/notify/fsnotify.c | 4 | ||||
| -rw-r--r-- | fs/notify/inotify/inotify_fsnotify.c | 6 | ||||
| -rw-r--r-- | fs/notify/inotify/inotify_user.c | 10 | ||||
| -rw-r--r-- | fs/notify/notification.c | 13 |
4 files changed, 33 insertions, 0 deletions
diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c index 076c10e959d5..72aae4045314 100644 --- a/fs/notify/fsnotify.c +++ b/fs/notify/fsnotify.c @@ -174,6 +174,10 @@ static int send_to_group(struct fsnotify_group *group, struct inode *to_tell, int data_is, u32 cookie, const unsigned char *file_name, struct fsnotify_event **event) { + pr_debug("%s: group=%p to_tell=%p mnt=%p mask=%x data=%p data_is=%d" + " cookie=%d event=%p\n", __func__, group, to_tell, mnt, + mask, data, data_is, cookie, *event); + if (!group->ops->should_send_event(group, to_tell, mnt, mask, data, data_is)) return 0; diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c index 9d332e7f5a5c..906b72761b17 100644 --- a/fs/notify/inotify/inotify_fsnotify.c +++ b/fs/notify/inotify/inotify_fsnotify.c @@ -98,6 +98,9 @@ static int inotify_handle_event(struct fsnotify_group *group, struct fsnotify_ev 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 @@ static bool inotify_should_send_event(struct fsnotify_group *group, struct inode 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 7dc940c869b6..1068e1ca9cb0 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -141,6 +141,8 @@ static struct fsnotify_event *get_one_event(struct fsnotify_group *group, 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 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group, 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 @@ static ssize_t inotify_read(struct file *file, char __user *buf, 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 @@ static int inotify_release(struct inode *ignored, struct file *file) 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 @@ static long inotify_ioctl(struct file *file, unsigned int cmd, 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); 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) { |