From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 64550390230 for ; Mon, 6 Jul 2026 16:19:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783354784; cv=none; b=BjHra5KuMJiS+4xVdf4DgTMTPSydqh0M9SdUDJggYW0r354jXeqqktCmi5OoRVz7yNIn1cbLymU1uU5wnZ00Xl5K6nTRAkVnQanMFmD9RNXXWkTo7y80q0o2SQGXai4aZU0jmIulms6ZULqMDE0ZFc5WqXGLVKcJoJxnPvS32dQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783354784; c=relaxed/simple; bh=zuG9Oth6e+8iKvnS15FiUnsiQGJ32VBKycgWBhWpy5U=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=aUKJh04hm9KiKO+j1UOFXdxHVmTK2z+CrZ1Mq66P8e9t7U8Gne593wbSMb5gFwGmtsBtvnsHMhQylgnBR7IHFMep+2QEzUzh9Wr5oqJzYrMOVoLYSMo+r5idmOJydQI5S4lpoIrCCVcyCeJ90sGJGh5SuEe2xfY+CaZUA+6K4Wc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GGRBcZBb; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="GGRBcZBb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 818981F000E9; Mon, 6 Jul 2026 16:19:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783354783; bh=h6QuGCcqGfAb4Z+6/rHGC1GM4mrvcOMOmdoyyFU0TbI=; h=Subject:From:To:Cc:Date:In-Reply-To:References; b=GGRBcZBbdcX52sFUiuCmldWNr8URvJYHWkLZyIHccuT1u/ms2hh8fE2NmP5GwMcpD J88ydCkcl9mOzE20RljqKwKjf5mhRHLk8QcrP4M917E8d4VhJ2IrSX/38LkYow+Jto TvFt8TSf3ovmRb041J0IDlx/4a09ryXi++ZZTrHZTzMWer1F0J34K23v1AWXbU2C/H Oq1Zo/c0RBPUpBODct05LIaFHlFDzhw3gbrUzRlwFHn+fdTtAfh0SRWtidRuj5KOWM zMwBhzI9kmX1HKcYR1f9TMQ2b3XkP5ZqkyU4vIWHuCEvKiTCirRXueNilCh+SDUutf O4hvFNDVQxhNg== Message-ID: <4287e561b46452f2c81580cccbaa8a6dd13ba74b.camel@kernel.org> Subject: Re: [PATCH v2 07/14] nfsd: nfsd4_create_file(): Move NFSD_MAY_CREATE check earlier From: Jeff Layton To: NeilBrown , Chuck Lever Cc: Olga Kornievskaia , Dai Ngo , Tom Talpey , linux-nfs@vger.kernel.org Date: Mon, 06 Jul 2026 12:19:41 -0400 In-Reply-To: <20260705222032.1240057-8-neilb@ownmail.net> References: <20260705222032.1240057-1-neilb@ownmail.net> <20260705222032.1240057-8-neilb@ownmail.net> Autocrypt: addr=jlayton@kernel.org; prefer-encrypt=mutual; keydata=mQINBE6V0TwBEADXhJg7s8wFDwBMEvn0qyhAnzFLTOCHooMZyx7XO7dAiIhDSi7G1NPxw n8jdFUQMCR/GlpozMFlSFiZXiObE7sef9rTtM68ukUyZM4pJ9l0KjQNgDJ6Fr342Htkjxu/kFV1Wv egyjnSsFt7EGoDjdKqr1TS9syJYFjagYtvWk/UfHlW09X+jOh4vYtfX7iYSx/NfqV3W1D7EDi0PqV 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Mon, 2026-07-06 at 08:19 +1000, NeilBrown wrote: > From: NeilBrown >=20 > We only need NFS_MAY_CREATE check if the file doesn't exist, but it is > nfsd-specific code as it needs to check NFSEXP_READONLY and I want that > to be separate from vfs-specific code, which eventually all be provided > by the VFS. >=20 > So move that check earlier, but hold the error status until needed. >=20 > The if/else chain here looks a bit clumsy, but it will make a later > patch cleaner. >=20 > Signed-off-by: NeilBrown > --- > fs/nfsd/nfs4proc.c | 21 ++++++++++++--------- > 1 file changed, 12 insertions(+), 9 deletions(-) >=20 > diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c > index f59ee074c0c9..95e46c15c5a3 100644 > --- a/fs/nfsd/nfs4proc.c > +++ b/fs/nfsd/nfs4proc.c > @@ -260,7 +260,7 @@ nfsd4_create_file(struct svc_rqst *rqstp, struct svc_= fh *fhp, > struct dentry *parent, *child =3D ERR_PTR(-EINVAL); > __u32 v_mtime, v_atime; > struct inode *inode; > - __be32 status; > + __be32 status, create_status; > int host_err; > =20 > if (name_is_dot_dotdot(open->op_fname, open->op_fnamelen)) > @@ -320,6 +320,8 @@ nfsd4_create_file(struct svc_rqst *rqstp, struct svc_= fh *fhp, > iap->ia_atime.tv_nsec =3D 0; > } > =20 > + create_status =3D fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE); > + > host_err =3D fh_want_write(fhp); > if (host_err) { > status =3D nfserrno(host_err); > @@ -333,16 +335,17 @@ nfsd4_create_file(struct svc_rqst *rqstp, struct sv= c_fh *fhp, > goto out; > } > =20 > - if (d_really_is_negative(child)) { > - status =3D fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE); > - if (status !=3D nfs_ok) > - goto out; > - > + if (d_really_is_positive(child)) { > + /* No creation needed */ > + } else if (create_status) { > + status =3D create_status; > + } else { > status =3D nfsd4_vfs_create(fhp, &child, open); > - if (status !=3D nfs_ok) > - goto out; > - open->op_created =3D open->op_filp->f_mode & FMODE_CREATED; > + if (status =3D=3D nfs_ok) > + open->op_created =3D open->op_filp->f_mode & FMODE_CREATED; > } > + if (status !=3D nfs_ok) > + goto out; > =20 > status =3D fh_compose(resfhp, fhp->fh_export, child, fhp); > if (status !=3D nfs_ok) Reviewed-by: Jeff Layton