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Commit 21de4c6b authored by Daniel Rosenberg's avatar Daniel Rosenberg
Browse files

ANDROID: fsnotify: Notify lower fs of open 



If the filesystem being watched supports d_canonical_path,
notify the lower filesystem of the open as well.

Change-Id: I2b1739e068afbaf5eb39950516072bff8345ebfe
Signed-off-by: default avatarDaniel Rosenberg <drosen@google.com>
Bug: 70706497
parent d627a9b8

include/linux/fsnotify.h

+7 −0
Original line number Diff line number Diff line
@@ -214,12 +214,19 @@ static inline void fsnotify_modify(struct file *file) 
static inline void fsnotify_open(struct file *file)

{

	const struct path *path = &file->f_path;

	struct path lower_path;

	struct inode *inode = path->dentry->d_inode;

	__u32 mask = FS_OPEN;



	if (S_ISDIR(inode->i_mode))

		mask |= FS_ISDIR;



	if (path->dentry->d_op && path->dentry->d_op->d_canonical_path) {

		path->dentry->d_op->d_canonical_path(path, &lower_path);

		fsnotify_parent(&lower_path, NULL, mask);

		fsnotify(lower_path.dentry->d_inode, mask, &lower_path, FSNOTIFY_EVENT_PATH, NULL, 0);

		path_put(&lower_path);

	}

	fsnotify_parent(path, NULL, mask);

	fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0);

}