From patchwork Thu Nov 22 04:48:15 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [3.5.yuz, extended, stable] Patch "Revert "SUNRPC: Ensure we close the socket on EPIPE errors" has been added to staging queue Date: Wed, 21 Nov 2012 18:48:15 -0000 From: Herton Ronaldo Krzesinski X-Patchwork-Id: 200977 Message-Id: <1353559695-1887-1-git-send-email-herton.krzesinski@canonical.com> To: Trond Myklebust Cc: Chris Perl , kernel-team@lists.ubuntu.com This is a note to let you know that I have just added a patch titled Revert "SUNRPC: Ensure we close the socket on EPIPE errors to the linux-3.5.y-queue branch of the 3.5.yuz extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.yuz tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Herton ------ >From 9cd6283f898dae34cdc648808864b02006ced34f Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 23 Oct 2012 11:40:02 -0400 Subject: [PATCH] Revert "SUNRPC: Ensure we close the socket on EPIPE errors too..." commit b9d2bb2ee537424a7f855e1f93eed44eb9ee0854 upstream. This reverts commit 55420c24a0d4d1fce70ca713f84aa00b6b74a70e. Now that we clear the connected flag when entering TCP_CLOSE_WAIT, the deadlock described in this commit is no longer possible. Instead, the resulting call to xs_tcp_shutdown() can interfere with pending reconnection attempts. Reported-by: Chris Perl Signed-off-by: Trond Myklebust Tested-by: Chris Perl Signed-off-by: Herton Ronaldo Krzesinski --- net/sunrpc/xprtsock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 1.7.9.5 diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 683f990b..a3f1990 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -737,10 +737,10 @@ static int xs_tcp_send_request(struct rpc_task *task) dprintk("RPC: sendmsg returned unrecognized error %d\n", -status); case -ECONNRESET: - case -EPIPE: xs_tcp_shutdown(xprt); case -ECONNREFUSED: case -ENOTCONN: + case -EPIPE: clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags); }