linux-kernel - [PATCH 5.4 441/475] SUNRPC: Handle ENOMEM in call_transmit

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Message-Id: <20220414110907.402176458@linuxfoundation.org>
Date:   Thu, 14 Apr 2022 15:13:46 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Trond Myklebust <trond.myklebust@...merspace.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 441/475] SUNRPC: Handle ENOMEM in call_transmit_status()

From: Trond Myklebust <trond.myklebust@...merspace.com>

[ Upstream commit d3c15033b240767d0287f1c4a529cbbe2d5ded8a ]

Both call_transmit() and call_bc_transmit() can now return ENOMEM, so
let's make sure that we handle the errors gracefully.

Fixes: 0472e4766049 ("SUNRPC: Convert socket page send code to use iov_iter()")
Signed-off-by: Trond Myklebust <trond.myklebust@...merspace.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/sunrpc/clnt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index b6039642df67..bc191d2c193e 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -2223,6 +2223,7 @@ call_transmit_status(struct rpc_task *task)
 		 * socket just returned a connection error,
 		 * then hold onto the transport lock.
 		 */
+	case -ENOMEM:
 	case -ENOBUFS:
 		rpc_delay(task, HZ>>2);
 		/* fall through */
@@ -2308,6 +2309,7 @@ call_bc_transmit_status(struct rpc_task *task)
 	case -ENOTCONN:
 	case -EPIPE:
 		break;
+	case -ENOMEM:
 	case -ENOBUFS:
 		rpc_delay(task, HZ>>2);
 		/* fall through */
-- 
2.35.1