ovl: fold ovl_copy_up_truncate() into ovl_copy_up()
This removes code duplication.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index a10e948..1ab8b0d 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -13,34 +13,6 @@
#include <linux/posix_acl.h>
#include "overlayfs.h"
-static int ovl_copy_up_truncate(struct dentry *dentry)
-{
- int err;
- struct dentry *parent;
- struct kstat stat;
- struct path lowerpath;
- const struct cred *old_cred;
-
- parent = dget_parent(dentry);
- err = ovl_copy_up(parent);
- if (err)
- goto out_dput_parent;
-
- ovl_path_lower(dentry, &lowerpath);
-
- old_cred = ovl_override_creds(dentry->d_sb);
- err = vfs_getattr(&lowerpath, &stat);
- if (!err) {
- stat.size = 0;
- err = ovl_copy_up_one(parent, dentry, &lowerpath, &stat);
- }
- revert_creds(old_cred);
-
-out_dput_parent:
- dput(parent);
- return err;
-}
-
int ovl_setattr(struct dentry *dentry, struct iattr *attr)
{
int err;
@@ -281,10 +253,7 @@ int ovl_open_maybe_copy_up(struct dentry *dentry, unsigned int file_flags)
if (ovl_open_need_copy_up(file_flags, type, realpath.dentry)) {
err = ovl_want_write(dentry);
if (!err) {
- if (file_flags & O_TRUNC)
- err = ovl_copy_up_truncate(dentry);
- else
- err = ovl_copy_up(dentry);
+ err = ovl_copy_up_flags(dentry, file_flags);
ovl_drop_write(dentry);
}
}