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| author | Eric Paris <eparis@redhat.com> | 2010-07-28 10:18:37 -0400 |
|---|---|---|
| committer | Eric Paris <eparis@redhat.com> | 2010-07-28 10:18:50 -0400 |
| commit | 5ba08e2eeb06355f66ed62ae97bb87d145973a9a (patch) | |
| tree | 4d0b26a125c8805234e0ebb58101bf1c5a75e61e /fs/notify/inotify/inotify_user.c | |
| parent | 80af2588676483ac4e998b5092e9d008dab3ab62 (diff) | |
| download | linux-5ba08e2eeb06355f66ed62ae97bb87d145973a9a.tar.gz linux-5ba08e2eeb06355f66ed62ae97bb87d145973a9a.tar.bz2 linux-5ba08e2eeb06355f66ed62ae97bb87d145973a9a.zip | |
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>
Diffstat (limited to 'fs/notify/inotify/inotify_user.c')
| -rw-r--r-- | fs/notify/inotify/inotify_user.c | 10 |
1 files changed, 10 insertions, 0 deletions
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); |