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 F2F662BAF7; Tue, 26 Aug 2025 13:01:46 +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=1756213307; cv=none; b=FoMdze1qabp2+l6M7nBpHuCMGFf4CrGOTbWn6aCv1ceW1GcV5n75ClIbIIXioPWR+Whkyk/7DaisreBTFBCfEgvbCkkoy/mvlJ2Fa2Jyb+LTdfxYoNLFOlYG5DoOfiz24RwPHTiuXaipA1Bw/XFREQh0jNi+CKh6zJihX0wiVNw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756213307; c=relaxed/simple; bh=3HE1bemLJjow/1tQzNFqWl3RghntReju/bNjSNIAVZk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lhinrG3vq+V7l7uZ6X/U4qKVezReuDQr81oiE0lYuG5MeZmc4VcIHKYlXKMYGjzUo/Z4gxToEDz07EndwX6axeH8o5uenGONyUp+LvULfcDtVjOBBoFzZFYwXoNid5nzPRPE2gFP+HTMjJYZUfSSkFG8i72NrAqCqNl3JGQDkwo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=mKoiadKy; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="mKoiadKy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 77316C4CEF1; Tue, 26 Aug 2025 13:01:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756213306; bh=3HE1bemLJjow/1tQzNFqWl3RghntReju/bNjSNIAVZk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mKoiadKyCmEUjuXFzrll1FkDG0J0eE0z7/piM2El/R46r5PSZYpkeGm7YrfK8c0qC pu6PKnl7JMpc0Ib7Zjs/4KWUrrpTdGOZD2NBMatpFlfEjSqwGTK4MZYaPB99Lf5hBy 3WwwayjLFUdxlmuCmw+8OZaFk9rwDWFnjdwd8GsQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Konstantin Evtushenko , Sergey Bashirov , Christoph Hellwig , Trond Myklebust , Sasha Levin Subject: [PATCH 6.6 291/587] pNFS: Handle RPC size limit for layoutcommits Date: Tue, 26 Aug 2025 13:07:20 +0200 Message-ID: <20250826111000.330553400@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110952.942403671@linuxfoundation.org> References: <20250826110952.942403671@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sergey Bashirov [ Upstream commit d897d81671bc4615c80f4f3bd5e6b218f59df50c ] When there are too many block extents for a layoutcommit, they may not all fit into the maximum-sized RPC. This patch allows the generic pnfs code to properly handle -ENOSPC returned by the block/scsi layout driver and trigger additional layoutcommits if necessary. Co-developed-by: Konstantin Evtushenko Signed-off-by: Konstantin Evtushenko Signed-off-by: Sergey Bashirov Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/20250630183537.196479-5-sergeybashirov@gmail.com Signed-off-by: Trond Myklebust Signed-off-by: Sasha Levin --- fs/nfs/pnfs.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 79d1ffdcbebd..b40c20bd364b 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -3216,6 +3216,7 @@ pnfs_layoutcommit_inode(struct inode *inode, bool sync) struct nfs_inode *nfsi = NFS_I(inode); loff_t end_pos; int status; + bool mark_as_dirty = false; if (!pnfs_layoutcommit_outstanding(inode)) return 0; @@ -3267,19 +3268,23 @@ pnfs_layoutcommit_inode(struct inode *inode, bool sync) if (ld->prepare_layoutcommit) { status = ld->prepare_layoutcommit(&data->args); if (status) { - put_cred(data->cred); + if (status != -ENOSPC) + put_cred(data->cred); spin_lock(&inode->i_lock); set_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags); if (end_pos > nfsi->layout->plh_lwb) nfsi->layout->plh_lwb = end_pos; - goto out_unlock; + if (status != -ENOSPC) + goto out_unlock; + spin_unlock(&inode->i_lock); + mark_as_dirty = true; } } status = nfs4_proc_layoutcommit(data, sync); out: - if (status) + if (status || mark_as_dirty) mark_inode_dirty_sync(inode); dprintk("<-- %s status %d\n", __func__, status); return status; -- 2.39.5