CRED: Use creds in file structs

Attach creds to file structs and discard f_uid/f_gid.

file_operations::open() methods (such as hppfs_open()) should use file->f_cred
rather than current_cred().  At the moment file->f_cred will be current_cred()
at this point.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <jmorris@namei.org>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/hppfs/hppfs.c b/fs/hppfs/hppfs.c
index 795e2c130ad7..b278f7f52024 100644
--- a/fs/hppfs/hppfs.c
+++ b/fs/hppfs/hppfs.c
@@ -426,7 +426,7 @@ static int file_mode(int fmode)
 
 static int hppfs_open(struct inode *inode, struct file *file)
 {
-        const struct cred *cred = current_cred();
+        const struct cred *cred = file->f_cred;
         struct hppfs_private *data;
         struct vfsmount *proc_mnt;
         struct dentry *proc_dentry;
@@ -490,7 +490,7 @@ static int hppfs_open(struct inode *inode, struct file *file)
 
 static int hppfs_dir_open(struct inode *inode, struct file *file)
 {
-        const struct cred *cred = current_cred();
+        const struct cred *cred = file->f_cred;
         struct hppfs_private *data;
         struct vfsmount *proc_mnt;
         struct dentry *proc_dentry;