diff options
| author | Amir Goldstein <amir73il@gmail.com> | 2017-10-15 18:00:20 +0300 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2018-01-24 11:25:58 +0100 |
| commit | aa3ff3c152ff94ef045ed802db7535167f8a21ab (patch) | |
| tree | bdeb25cc1784bf8bf2862d654b8a9ea5b0134b33 /fs/overlayfs/util.c | |
| parent | 829c28be9bb9a05aa7eeb8a68a4536cca2d3d694 (diff) | |
ovl: copy up of disconnected dentries
With NFS export, some operations on decoded file handles (e.g. open,
link, setattr, xattr_set) may call copy up with a disconnected non-dir.
In this case, we will copy up lower inode to index dir without
linking it to upper dir.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/overlayfs/util.c')
| -rw-r--r-- | fs/overlayfs/util.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c index aa2234d52007..68541eb5be8e 100644 --- a/fs/overlayfs/util.c +++ b/fs/overlayfs/util.c @@ -229,9 +229,10 @@ void ovl_dentry_set_opaque(struct dentry *dentry) } /* - * For hard links it's possible for ovl_dentry_upper() to return positive, while - * there's no actual upper alias for the inode. Copy up code needs to know - * about the existence of the upper alias, so it can't use ovl_dentry_upper(). + * For hard links and decoded file handles, it's possible for ovl_dentry_upper() + * to return positive, while there's no actual upper alias for the inode. + * Copy up code needs to know about the existence of the upper alias, so it + * can't use ovl_dentry_upper(). */ bool ovl_dentry_has_upper_alias(struct dentry *dentry) { |