From ce7c252a8c741aba7c38f817b86e34361f561e42 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 16 Aug 2017 15:30:35 -0400 Subject: SUNRPC: Add a separate spinlock to protect the RPC request receive list This further reduces contention with the transport_lock, and allows us to convert to using a non-bh-safe spinlock, since the list is now never accessed from a bh context. Signed-off-by: Trond Myklebust --- net/sunrpc/svcsock.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'net/sunrpc/svcsock.c') diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index 2b720fa35c4f..272063ca81e8 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -1001,7 +1001,7 @@ static int receive_cb_reply(struct svc_sock *svsk, struct svc_rqst *rqstp) if (!bc_xprt) return -EAGAIN; - spin_lock_bh(&bc_xprt->transport_lock); + spin_lock(&bc_xprt->recv_lock); req = xprt_lookup_rqst(bc_xprt, xid); if (!req) goto unlock_notfound; @@ -1019,7 +1019,7 @@ static int receive_cb_reply(struct svc_sock *svsk, struct svc_rqst *rqstp) memcpy(dst->iov_base, src->iov_base, src->iov_len); xprt_complete_rqst(req->rq_task, rqstp->rq_arg.len); rqstp->rq_arg.len = 0; - spin_unlock_bh(&bc_xprt->transport_lock); + spin_unlock(&bc_xprt->recv_lock); return 0; unlock_notfound: printk(KERN_NOTICE @@ -1028,7 +1028,7 @@ unlock_notfound: __func__, ntohl(calldir), bc_xprt, ntohl(xid)); unlock_eagain: - spin_unlock_bh(&bc_xprt->transport_lock); + spin_unlock(&bc_xprt->recv_lock); return -EAGAIN; } -- cgit v1.2.3