A while ago we introduced a dedicated vfs{g,u}id_t type in commit
1e5267cd0895 ("mnt_idmapping: add vfs{g,u}id_t"). We already switched
over a good part of the VFS. Ultimately we will remove all legacy
idmapped mount helpers that operate only on k{g,u}id_t in favor of the
new type safe helpers that operate on vfs{g,u}id_t.
Cc: Seth Forshee (Digital Ocean) <sforshee@xxxxxxxxxx>
Cc: Amir Goldstein <amir73il@xxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Christian Brauner (Microsoft) <brauner@xxxxxxxxxx>
---
Notes:
Note that this patch is currently also in Miklos tree.
fs/overlayfs/util.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c
index 81a57a8d80d9..c0c20d33691b 100644
--- a/fs/overlayfs/util.c
+++ b/fs/overlayfs/util.c
@@ -1104,13 +1104,18 @@ void ovl_copyattr(struct inode *inode)
struct path realpath;
struct inode *realinode;
struct user_namespace *real_mnt_userns;
+ vfsuid_t vfsuid;
+ vfsgid_t vfsgid;
ovl_i_path_real(inode, &realpath);
realinode = d_inode(realpath.dentry);
real_mnt_userns = mnt_user_ns(realpath.mnt);
- inode->i_uid = i_uid_into_mnt(real_mnt_userns, realinode);
- inode->i_gid = i_gid_into_mnt(real_mnt_userns, realinode);
+ vfsuid = i_uid_into_vfsuid(real_mnt_userns, realinode);
+ vfsgid = i_gid_into_vfsgid(real_mnt_userns, realinode);
+
+ inode->i_uid = vfsuid_into_kuid(vfsuid);
+ inode->i_gid = vfsgid_into_kgid(vfsgid);
inode->i_mode = realinode->i_mode;
inode->i_atime = realinode->i_atime;
inode->i_mtime = realinode->i_mtime;
--
2.34.1
