ovl: copy up file size as well

Copy i_size of the underlying inode to the overlay inode in ovl_copyattr().

This is in preparation for stacking I/O operations on overlay files.

This patch shouldn't have any observable effect.

Remove stale comment from ovl_setattr() [spotted by Vivek Goyal].

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

1 files changed, 0 insertions, 9 deletions

diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 3f1e5bd0ba87..5b6c86703d34 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -22,15 +22,6 @@ int ovl_setattr(struct dentry *dentry, struct iattr *attr)
 	struct dentry *upperdentry;
 	const struct cred *old_cred;
 
-	/*
-	 * Check for permissions before trying to copy-up.  This is redundant
-	 * since it will be rechecked later by ->setattr() on upper dentry.  But
-	 * without this, copy-up can be triggered by just about anybody.
-	 *
-	 * We don't initialize inode->size, which just means that
-	 * inode_newsize_ok() will always check against MAX_LFS_FILESIZE and not
-	 * check for a swapfile (which this won't be anyway).
-	 */
 	err = setattr_prepare(dentry, attr);
 	if (err)
 		return err;