| From 7d3377e714bb5e954f69996477c46bb0ed802be5 Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Thu, 7 Apr 2022 09:50:19 -0400 |
| Subject: SUNRPC: Handle low memory situations in call_status() |
| MIME-Version: 1.0 |
| Content-Type: text/plain; charset=UTF-8 |
| Content-Transfer-Encoding: 8bit |
| |
| From: Trond Myklebust <trond.myklebust@hammerspace.com> |
| |
| [ Upstream commit 9d82819d5b065348ce623f196bf601028e22ed00 ] |
| |
| We need to handle ENFILE, ENOBUFS, and ENOMEM, because |
| xprt_wake_pending_tasks() can be called with any one of these due to |
| socket creation failures. |
| |
| Fixes: b61d59fffd3e ("SUNRPC: xs_tcp_connect_worker{4,6}: merge common code") |
| Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| net/sunrpc/clnt.c | 5 +++++ |
| 1 file changed, 5 insertions(+) |
| |
| diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c |
| index bf1fd6caaf92..0222ad4523a9 100644 |
| --- a/net/sunrpc/clnt.c |
| +++ b/net/sunrpc/clnt.c |
| @@ -2364,6 +2364,11 @@ call_status(struct rpc_task *task) |
| case -EPIPE: |
| case -EAGAIN: |
| break; |
| + case -ENFILE: |
| + case -ENOBUFS: |
| + case -ENOMEM: |
| + rpc_delay(task, HZ>>2); |
| + break; |
| case -EIO: |
| /* shutdown or soft timeout */ |
| goto out_exit; |
| -- |
| 2.35.1 |
| |
