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fanotify: Fold dequeue_event() into process_access_response() 

Fold dequeue_event() into process_access_response(). This will make
changes to use of ->response field easier.

Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara 2019-01-08 13:28:18 +01:00
parent 53136b393c
commit af6a511306
1 changed files with 13 additions and 28 deletions
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41
fs/notify/fanotify/fanotify_user.c
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@ -138,28 +138,6 @@ static int create_fd(struct fsnotify_group *group,
return client_fd;
}
static struct fanotify_perm_event *dequeue_event(
struct fsnotify_group *group, int fd)
{
struct fanotify_perm_event *event, *return_e = NULL;
spin_lock(&group->notification_lock);
list_for_each_entry(event, &group->fanotify_data.access_list,
fae.fse.list) {
if (event->fd != fd)
continue;
list_del_init(&event->fae.fse.list);
return_e = event;
break;
}
spin_unlock(&group->notification_lock);
pr_debug("%s: found return_re=%p\n", __func__, return_e);
return return_e;
}
static int process_access_response(struct fsnotify_group *group,
struct fanotify_response *response_struct)
{
@ -188,14 +166,21 @@ static int process_access_response(struct fsnotify_group *group,
if ((response & FAN_AUDIT) && !FAN_GROUP_FLAG(group, FAN_ENABLE_AUDIT))
return -EINVAL;
event = dequeue_event(group, fd);
if (!event)
return -ENOENT;
spin_lock(&group->notification_lock);
list_for_each_entry(event, &group->fanotify_data.access_list,
fae.fse.list) {
if (event->fd != fd)
continue;
event->response = response;
wake_up(&group->fanotify_data.access_waitq);
list_del_init(&event->fae.fse.list);
event->response = response;
spin_unlock(&group->notification_lock);
wake_up(&group->fanotify_data.access_waitq);
return 0;
}
spin_unlock(&group->notification_lock);
return 0;
return -ENOENT;
}
static int copy_fid_to_user(struct fanotify_event *event, char __user *buf)