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authorTrond Myklebust <trond.myklebust@primarydata.com>2015-07-03 09:32:23 -0400
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-07-03 09:42:54 -0400
commitb5872f0c67edf3714dd46f04d73c3644f3addaf9 (patch)
tree6b5d00addc414b9d96788ed6d407e83ab1477610
parentSUNRPC: Don't reencode message if transmission failed with ENOBUFS (diff)
downloadlinux-dev-b5872f0c67edf3714dd46f04d73c3644f3addaf9.tar.xz
linux-dev-b5872f0c67edf3714dd46f04d73c3644f3addaf9.zip
SUNRPC: Don't confuse ENOBUFS with a write_space issue
ENOBUFS means that memory allocations are failing due to an actual low memory situation. It should not be confused with being out of socket buffer space. Handle the problem by just punting to the delay in call_status. Reported-by: Neil Brown <neilb@suse.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
-rw-r--r--net/sunrpc/xprtsock.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index ee359fc7af16..44c1927b68c7 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -539,6 +539,7 @@ static int xs_local_send_request(struct rpc_task *task)
switch (status) {
case -ENOBUFS:
+ break;
case -EAGAIN:
status = xs_nospace(task);
break;
@@ -692,7 +693,6 @@ static int xs_tcp_send_request(struct rpc_task *task)
status = -ENOTCONN;
/* Should we call xs_close() here? */
break;
- case -ENOBUFS:
case -EAGAIN:
status = xs_nospace(task);
break;
@@ -703,6 +703,7 @@ static int xs_tcp_send_request(struct rpc_task *task)
case -ECONNREFUSED:
case -ENOTCONN:
case -EADDRINUSE:
+ case -ENOBUFS:
case -EPIPE:
clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags);
}