From: Christian Brauner Date: Mon, 17 Nov 2025 09:33:50 +0000 (+0100) Subject: ovl: port ovl_fiemap() to cred guard X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a3860a808f732384f8104250fba54481e6431f32;p=thirdparty%2Fkernel%2Flinux.git ovl: port ovl_fiemap() to cred guard Use the scoped ovl cred guard. Link: https://patch.msgid.link/20251117-work-ovl-cred-guard-v4-19-b31603935724@kernel.org Reviewed-by: Amir Goldstein Signed-off-by: Christian Brauner --- diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index efc0ff84b59bd..aefdb0a27e3bb 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -576,9 +576,7 @@ int ovl_update_time(struct inode *inode, int flags) static int ovl_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, u64 start, u64 len) { - int err; struct inode *realinode = ovl_inode_realdata(inode); - const struct cred *old_cred; if (!realinode) return -EIO; @@ -586,11 +584,8 @@ static int ovl_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, if (!realinode->i_op->fiemap) return -EOPNOTSUPP; - old_cred = ovl_override_creds(inode->i_sb); - err = realinode->i_op->fiemap(realinode, fieinfo, start, len); - ovl_revert_creds(old_cred); - - return err; + with_ovl_creds(inode->i_sb) + return realinode->i_op->fiemap(realinode, fieinfo, start, len); } /*