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 A90377D07D for ; Mon, 20 Oct 2025 19:58:51 +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=1760990331; cv=none; b=GuC3dqsqFxzybeeSi8GwugE7VSZ6jOEfw1kP/po0z7jJNWCK2RZkvO3i198Fje41iZGWbKfaH/3STRyFuJ8QHcyHamUaB3FWN348WWTGwN55x+3wTsnNrrHb7n3gNAolkY60d8j3HOc12dsiFpkjob/tv0z06ZlMj5An2Jhl0Xs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760990331; c=relaxed/simple; bh=OZvzOb42xpo6joHbPbohA1f5okkRIV1Q0kUQ/PHq9aI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DF5nbhk0Ny7EYsJJDPWDhUhQJpvDGYyCkOOrZAPs3E5EuVHTKw9ruzJhuikIYIM4a9aM865LlrIIXH9NtpzU9ehm2z65wnbVlJi12ozAAOb5UTRrfZ61fquJOdBp8ANJboPdB+kH39fXj8hFyk7nBHlOfNAEiivYrmhrCglFfak= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=skNI6r4t; 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="skNI6r4t" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AA019C113D0; Mon, 20 Oct 2025 19:58:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760990331; bh=OZvzOb42xpo6joHbPbohA1f5okkRIV1Q0kUQ/PHq9aI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=skNI6r4t/EFijO9RuZvt6UuFcefQcBs1znPU5HEKWXe/bBvt7lQxBj+49vql2nbA4 fWIGfhEYeimJJL/npmFsCOxgZ4q+81+Odtyq4iQukC+774Uw7IfJptfbbcFxocEfqm VoVOFuHnB5nH9NW4MMIsfZJtYYBuyVh6yK5HhLWEJTByoGAF+lVwJ6qqV99GVjcjEn ltA1aCAFyvEEjLYta9lteEiaLRWYQY5jYUeT10vcVGvGWfzmgYQw/e/ee/tHXeJm8E u1WL31JHWiZInKM4JamXAdxwJ+Pm2Sb3VVrQJLsbPHCkhtmNpzD7DjfI07ptXYXe7B U/5TSxSGkxACQ== From: Sasha Levin To: stable@vger.kernel.org Cc: Chuck Lever , Robert Morris , Thomas Haynes , Sasha Levin Subject: [PATCH 6.17.y 3/3] NFSD: Define a proc_layoutcommit for the FlexFiles layout type Date: Mon, 20 Oct 2025 15:58:46 -0400 Message-ID: <20251020195846.1896208-3-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251020195846.1896208-1-sashal@kernel.org> References: <2025102049-comic-carpentry-952e@gregkh> <20251020195846.1896208-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Chuck Lever [ Upstream commit 4b47a8601b71ad98833b447d465592d847b4dc77 ] Avoid a crash if a pNFS client should happen to send a LAYOUTCOMMIT operation on a FlexFiles layout. Reported-by: Robert Morris Closes: https://lore.kernel.org/linux-nfs/152f99b2-ba35-4dec-93a9-4690e625dccd@oracle.com/T/#t Cc: Thomas Haynes Cc: stable@vger.kernel.org Fixes: 9b9960a0ca47 ("nfsd: Add a super simple flex file server") Signed-off-by: Chuck Lever Signed-off-by: Sasha Levin --- fs/nfsd/flexfilelayout.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/nfsd/flexfilelayout.c b/fs/nfsd/flexfilelayout.c index 3ca5304440ff0..3c4419da5e24c 100644 --- a/fs/nfsd/flexfilelayout.c +++ b/fs/nfsd/flexfilelayout.c @@ -125,6 +125,13 @@ nfsd4_ff_proc_getdeviceinfo(struct super_block *sb, struct svc_rqst *rqstp, return 0; } +static __be32 +nfsd4_ff_proc_layoutcommit(struct inode *inode, struct svc_rqst *rqstp, + struct nfsd4_layoutcommit *lcp) +{ + return nfs_ok; +} + const struct nfsd4_layout_ops ff_layout_ops = { .notify_types = NOTIFY_DEVICEID4_DELETE | NOTIFY_DEVICEID4_CHANGE, @@ -133,4 +140,5 @@ const struct nfsd4_layout_ops ff_layout_ops = { .encode_getdeviceinfo = nfsd4_ff_encode_getdeviceinfo, .proc_layoutget = nfsd4_ff_proc_layoutget, .encode_layoutget = nfsd4_ff_encode_layoutget, + .proc_layoutcommit = nfsd4_ff_proc_layoutcommit, }; -- 2.51.0