From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E194B3D523F; Thu, 5 Feb 2026 12:58:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770296339; cv=none; b=fRuNg1k3y74PYu+s38CQNy3hAynKBYpnFCa0Y0bX1StjggK04HJFdiy06xfYmvrwsIFm7OQwZ8EAyVDy2fFIw/+d+000AtluqcihLDiZdlnF1EKa6scHtW+4vgRXX95du0cCuci7ZF+bad70I0nUP9s6dFAp9Mc8rG9rrPbkh6k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770296339; c=relaxed/simple; bh=TTo8r9PU9WJ6p301M7VHEuMS9EHbRX/m7krx1R/8ncs=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=LN1NqO8eEUfRdlZU3jrxtv2+5odWd9tf4GP0hhES3fe1wev/le3xR3XpeGMMzD9u2xEOLWFVM3YSNayrYYYvEDmsVZlEd3oK2kRfQQ194b628+Fhc/qvd+bWE0mA+STgSUUk2iOZgLYdVMN4qLugr1i+bDxNd6GvdhNaOKPq1n4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TrZzsXq8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TrZzsXq8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9BBE0C4CEF7; Thu, 5 Feb 2026 12:58:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770296338; bh=TTo8r9PU9WJ6p301M7VHEuMS9EHbRX/m7krx1R/8ncs=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=TrZzsXq8/IeJGvekWOJD8/evsUIm5SOl9z+KhoV8UyThlwVrA90ZXHIqaANB3LS98 HSuuuT+GFT7d2Tj6/a5rABk67obWc553Y6YdmBYeG23Nc5lcTX4HzKlr+mM1Ksm7Nl e8jzNqyUnTMo3CIMJEnhUSI0mTi8P/VnTwapLnplUSZ2zHfGKKHl9q/rm9YUw/oiKq 2wUXacanqbEhFFO8DtDfpu1pijzMi1ui2PWp8Qvhfp6m85Td8VNBHTnXmSYUAQ1RXv ND87CwlOH4KhjLBXNIcNjxo4W9BlJ+zwxClBCS10rS+HivlnOf978+IqfHk4lOjX94 9fypZSAAf7OXQ== Message-ID: <00ea86285ce8dcf7860b9df3bcbcf77af87e4686.camel@kernel.org> Subject: Re: [PATCH 12/13] ovl: remove ovl_lock_rename_workdir() From: Jeff Layton To: NeilBrown , Christian Brauner , Alexander Viro , David Howells , Jan Kara , Chuck Lever , Miklos Szeredi , Amir Goldstein , John Johansen , Paul Moore , James Morris , "Serge E. Hallyn" , Stephen Smalley Cc: linux-kernel@vger.kernel.org, netfs@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-unionfs@vger.kernel.org, apparmor@lists.ubuntu.com, linux-security-module@vger.kernel.org, selinux@vger.kernel.org Date: Thu, 05 Feb 2026 07:58:55 -0500 In-Reply-To: <20260204050726.177283-13-neilb@ownmail.net> References: <20260204050726.177283-1-neilb@ownmail.net> <20260204050726.177283-13-neilb@ownmail.net> Autocrypt: addr=jlayton@kernel.org; prefer-encrypt=mutual; keydata=mQINBE6V0TwBEADXhJg7s8wFDwBMEvn0qyhAnzFLTOCHooMZyx7XO7dAiIhDSi7G1NPxw n8jdFUQMCR/GlpozMFlSFiZXiObE7sef9rTtM68ukUyZM4pJ9l0KjQNgDJ6Fr342Htkjxu/kFV1Wv egyjnSsFt7EGoDjdKqr1TS9syJYFjagYtvWk/UfHlW09X+jOh4vYtfX7iYSx/NfqV3W1D7EDi0PqV T2h6v8i8YqsATFPwO4nuiTmL6I40ZofxVd+9wdRI4Db8yUNA4ZSP2nqLcLtFjClYRBoJvRWvsv4lm 0OX6MYPtv76hka8lW4mnRmZqqx3UtfHX/hF/zH24Gj7A6sYKYLCU3YrI2Ogiu7/ksKcl7goQjpvtV YrOOI5VGLHge0awt7bhMCTM9KAfPc+xL/ZxAMVWd3NCk5SamL2cE99UWgtvNOIYU8m6EjTLhsj8sn 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DfX/sn9XcfoVZIxMpCRE750zvJvcCUz9HojsrMQ1NFc7MFT1z3MOW2/RlzPcog7xvR5ENPH19ojRD CHqumUHRry+RF0lH00clzX/W8OrQJZtoBPXv9ahka/Vp7kEulcBJr1cH5Wz/WprhsIM7U9pse1f1g Yy9YbXtWctUz8uvDR7shsQxAhX3qO7DilMtuGo1v97I/Kx4gXQ52syh/w6EBny71CZrOgD6kJwPVV AaM1LRC28muq91WCFhs/nzHozpbzcheyGtMUI2Ao4K6mnY+3zIuXPygZMFr9KXE6fF7HzKxKuZMJO aEZCiDOq0anx6FmOzs5E6Jqdpo/mtI8beK+BE7Va6ni7YrQlnT0i3vaTVMTiCThbqsB20VrbMjlhp f8lfK1XVNbRq/R7GZ9zHESlsa35ha60yd/j3pu5hT2xyy8krV8vGhHvnJ1XRMJBAB/UYb6FyC7S+m QZIQXVeAA+smfTT0tDrisj1U5x6ZB9b3nBg65kc= Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.2 (3.58.2-1.fc43) Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Wed, 2026-02-04 at 15:57 +1100, NeilBrown wrote: > From: NeilBrown >=20 > This function is unused. >=20 > Signed-off-by: NeilBrown > --- > fs/overlayfs/overlayfs.h | 2 -- > fs/overlayfs/util.c | 25 ------------------------- > 2 files changed, 27 deletions(-) >=20 > diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h > index 4fb4750a83e4..3eedc2684c23 100644 > --- a/fs/overlayfs/overlayfs.h > +++ b/fs/overlayfs/overlayfs.h > @@ -569,8 +569,6 @@ bool ovl_is_inuse(struct dentry *dentry); > bool ovl_need_index(struct dentry *dentry); > int ovl_nlink_start(struct dentry *dentry); > void ovl_nlink_end(struct dentry *dentry); > -int ovl_lock_rename_workdir(struct dentry *workdir, struct dentry *work, > - struct dentry *upperdir, struct dentry *upper); > int ovl_check_metacopy_xattr(struct ovl_fs *ofs, const struct path *path= , > struct ovl_metacopy *data); > int ovl_set_metacopy_xattr(struct ovl_fs *ofs, struct dentry *d, > diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c > index 94986d11a166..810c8752b4f7 100644 > --- a/fs/overlayfs/util.c > +++ b/fs/overlayfs/util.c > @@ -1213,31 +1213,6 @@ void ovl_nlink_end(struct dentry *dentry) > ovl_inode_unlock(inode); > } > =20 > -int ovl_lock_rename_workdir(struct dentry *workdir, struct dentry *work, > - struct dentry *upperdir, struct dentry *upper) > -{ > - struct dentry *trap; > - > - /* Workdir should not be subdir of upperdir and vice versa */ > - trap =3D lock_rename(workdir, upperdir); > - if (IS_ERR(trap)) > - goto err; > - if (trap) > - goto err_unlock; > - if (work && (work->d_parent !=3D workdir || d_unhashed(work))) > - goto err_unlock; > - if (upper && (upper->d_parent !=3D upperdir || d_unhashed(upper))) > - goto err_unlock; > - > - return 0; > - > -err_unlock: > - unlock_rename(workdir, upperdir); > -err: > - pr_err("failed to lock workdir+upperdir\n"); > - return -EIO; > -} > - > /* > * err < 0, 0 if no metacopy xattr, metacopy data size if xattr found. > * an empty xattr returns OVL_METACOPY_MIN_SIZE to distinguish from no x= attr value. Reviewed-by: Jeff Layton