fsnotify: kill FSNOTIFY_EVENT_FILE

Some fsnotify operations send a struct file.  This is more information than
we technically need.  We instead send a struct path in all cases instead of
sometimes a path and sometimes a file.

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Eric Paris <eparis@redhat.com>

2 files changed, 5 insertions, 16 deletions

diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c
index 78c440c..60e84fd 100644
--- a/fs/notify/fsnotify.c
+++ b/fs/notify/fsnotify.c
@@ -79,15 +79,15 @@ void __fsnotify_update_child_dentry_flags(struct inode *inode)
 }
 
 /* Notify this dentry's parent about a child's events. */
-void __fsnotify_parent(struct file *file, struct dentry *dentry, __u32 mask)
+void __fsnotify_parent(struct path *path, struct dentry *dentry, __u32 mask)
 {
 	struct dentry *parent;
 	struct inode *p_inode;
 	bool send = false;
 	bool should_update_children = false;
 
-	if (file)
-		dentry = file->f_path.dentry;
+	if (!dentry)
+		dentry = path->dentry;
 
 	if (!(dentry->d_flags & DCACHE_FSNOTIFY_PARENT_WATCHED))
 		return;
@@ -119,8 +119,8 @@ void __fsnotify_parent(struct file *file, struct dentry *dentry, __u32 mask)
 		 * specifies these are events which came from a child. */
 		mask |= FS_EVENT_ON_CHILD;
 
-		if (file)
-			fsnotify(p_inode, mask, file, FSNOTIFY_EVENT_FILE,
+		if (path)
+			fsnotify(p_inode, mask, path, FSNOTIFY_EVENT_PATH,
 				 dentry->d_name.name, 0);
 		else
 			fsnotify(p_inode, mask, dentry->d_inode, FSNOTIFY_EVENT_INODE,
@@ -194,8 +194,6 @@ void fsnotify(struct inode *to_tell, __u32 mask, void *data, int data_is, const
  
 	if (data_is == FSNOTIFY_EVENT_PATH)
 		mnt = ((struct path *)data)->mnt;
-	else if (data_is == FSNOTIFY_EVENT_FILE)
-		mnt = ((struct file *)data)->f_path.mnt;
 
 	/* if this inode's directed listeners don't care and nothing on the vfsmount
 	 * listeners list cares, nothing to do */
diff --git a/fs/notify/notification.c b/fs/notify/notification.c
index dafd0b7..066f1f9 100644
--- a/fs/notify/notification.c
+++ b/fs/notify/notification.c
@@ -390,15 +390,6 @@ struct fsnotify_event *fsnotify_create_event(struct inode *to_tell, __u32 mask,
 	event->data_type = data_type;
 
 	switch (data_type) {
-	case FSNOTIFY_EVENT_FILE: {
-		struct file *file = data;
-		struct path *path = &file->f_path;
-		event->path.dentry = path->dentry;
-		event->path.mnt = path->mnt;
-		path_get(&event->path);
-		event->data_type = FSNOTIFY_EVENT_PATH;
-		break;
-	}
 	case FSNOTIFY_EVENT_PATH: {
 		struct path *path = data;
 		event->path.dentry = path->dentry;