diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-12 15:06:54 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-12 15:06:54 -0700 |
commit | ebc551f2b8f905eca0e25c476c1e5c098cd92103 (patch) | |
tree | 30438c51fc573494337b50267956d29cf77f72ff /net/sunrpc/xprtrdma | |
parent | a5adcfcad55d5f034b33f79f1a873229d1e77b24 (diff) | |
parent | f875a792abe933d0b4553ab6e29c624b58932e41 (diff) | |
download | linux-stable-ebc551f2b8f905eca0e25c476c1e5c098cd92103.tar.gz linux-stable-ebc551f2b8f905eca0e25c476c1e5c098cd92103.tar.bz2 linux-stable-ebc551f2b8f905eca0e25c476c1e5c098cd92103.zip |
Merge tag 'nfsd-5.1' of git://linux-nfs.org/~bfields/linux
Pull NFS server updates from Bruce Fields:
"Miscellaneous NFS server fixes.
Probably the most visible bug is one that could artificially limit
NFSv4.1 performance by limiting the number of oustanding rpcs from a
single client.
Neil Brown also gets a special mention for fixing a 14.5-year-old
memory-corruption bug in the encoding of NFSv3 readdir responses"
* tag 'nfsd-5.1' of git://linux-nfs.org/~bfields/linux:
nfsd: allow nfsv3 readdir request to be larger.
nfsd: fix wrong check in write_v4_end_grace()
nfsd: fix memory corruption caused by readdir
nfsd: fix performance-limiting session calculation
svcrpc: fix UDP on servers with lots of threads
svcrdma: Remove syslog warnings in work completion handlers
svcrdma: Squelch compiler warning when SUNRPC_DEBUG is disabled
svcrdma: Use struct_size() in kmalloc()
svcrpc: fix unlikely races preventing queueing of sockets
svcrpc: svc_xprt_has_something_to_do seems a little long
SUNRPC: Don't allow compiler optimisation of svc_xprt_release_slot()
nfsd: fix an IS_ERR() vs NULL check
Diffstat (limited to 'net/sunrpc/xprtrdma')
-rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_recvfrom.c | 12 | ||||
-rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_rw.c | 17 | ||||
-rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_sendto.c | 4 | ||||
-rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_transport.c | 9 |
4 files changed, 10 insertions, 32 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c index 828b149eaaef..65e2fb9aac65 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c +++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c @@ -272,11 +272,8 @@ bool svc_rdma_post_recvs(struct svcxprt_rdma *rdma) return false; ctxt->rc_temp = true; ret = __svc_rdma_post_recv(rdma, ctxt); - if (ret) { - pr_err("svcrdma: failure posting recv buffers: %d\n", - ret); + if (ret) return false; - } } return true; } @@ -314,17 +311,14 @@ static void svc_rdma_wc_receive(struct ib_cq *cq, struct ib_wc *wc) spin_lock(&rdma->sc_rq_dto_lock); list_add_tail(&ctxt->rc_list, &rdma->sc_rq_dto_q); - spin_unlock(&rdma->sc_rq_dto_lock); + /* Note the unlock pairs with the smp_rmb in svc_xprt_ready: */ set_bit(XPT_DATA, &rdma->sc_xprt.xpt_flags); + spin_unlock(&rdma->sc_rq_dto_lock); if (!test_bit(RDMAXPRT_CONN_PENDING, &rdma->sc_flags)) svc_xprt_enqueue(&rdma->sc_xprt); goto out; flushed: - if (wc->status != IB_WC_WR_FLUSH_ERR) - pr_err("svcrdma: Recv: %s (%u/0x%x)\n", - ib_wc_status_msg(wc->status), - wc->status, wc->vendor_err); post_err: svc_rdma_recv_ctxt_put(rdma, ctxt); set_bit(XPT_CLOSE, &rdma->sc_xprt.xpt_flags); diff --git a/net/sunrpc/xprtrdma/svc_rdma_rw.c b/net/sunrpc/xprtrdma/svc_rdma_rw.c index dc1951759a8e..2121c9b4d275 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_rw.c +++ b/net/sunrpc/xprtrdma/svc_rdma_rw.c @@ -64,8 +64,7 @@ svc_rdma_get_rw_ctxt(struct svcxprt_rdma *rdma, unsigned int sges) spin_unlock(&rdma->sc_rw_ctxt_lock); } else { spin_unlock(&rdma->sc_rw_ctxt_lock); - ctxt = kmalloc(sizeof(*ctxt) + - SG_CHUNK_SIZE * sizeof(struct scatterlist), + ctxt = kmalloc(struct_size(ctxt, rw_first_sgl, SG_CHUNK_SIZE), GFP_KERNEL); if (!ctxt) goto out; @@ -213,13 +212,8 @@ static void svc_rdma_write_done(struct ib_cq *cq, struct ib_wc *wc) atomic_add(cc->cc_sqecount, &rdma->sc_sq_avail); wake_up(&rdma->sc_send_wait); - if (unlikely(wc->status != IB_WC_SUCCESS)) { + if (unlikely(wc->status != IB_WC_SUCCESS)) set_bit(XPT_CLOSE, &rdma->sc_xprt.xpt_flags); - if (wc->status != IB_WC_WR_FLUSH_ERR) - pr_err("svcrdma: write ctx: %s (%u/0x%x)\n", - ib_wc_status_msg(wc->status), - wc->status, wc->vendor_err); - } svc_rdma_write_info_free(info); } @@ -278,18 +272,15 @@ static void svc_rdma_wc_read_done(struct ib_cq *cq, struct ib_wc *wc) if (unlikely(wc->status != IB_WC_SUCCESS)) { set_bit(XPT_CLOSE, &rdma->sc_xprt.xpt_flags); - if (wc->status != IB_WC_WR_FLUSH_ERR) - pr_err("svcrdma: read ctx: %s (%u/0x%x)\n", - ib_wc_status_msg(wc->status), - wc->status, wc->vendor_err); svc_rdma_recv_ctxt_put(rdma, info->ri_readctxt); } else { spin_lock(&rdma->sc_rq_dto_lock); list_add_tail(&info->ri_readctxt->rc_list, &rdma->sc_read_complete_q); + /* Note the unlock pairs with the smp_rmb in svc_xprt_ready: */ + set_bit(XPT_DATA, &rdma->sc_xprt.xpt_flags); spin_unlock(&rdma->sc_rq_dto_lock); - set_bit(XPT_DATA, &rdma->sc_xprt.xpt_flags); svc_xprt_enqueue(&rdma->sc_xprt); } diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c index 1f200119268c..6fdba72f89f4 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c +++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c @@ -272,10 +272,6 @@ static void svc_rdma_wc_send(struct ib_cq *cq, struct ib_wc *wc) if (unlikely(wc->status != IB_WC_SUCCESS)) { set_bit(XPT_CLOSE, &rdma->sc_xprt.xpt_flags); svc_xprt_enqueue(&rdma->sc_xprt); - if (wc->status != IB_WC_WR_FLUSH_ERR) - pr_err("svcrdma: Send: %s (%u/0x%x)\n", - ib_wc_status_msg(wc->status), - wc->status, wc->vendor_err); } svc_xprt_put(&rdma->sc_xprt); diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c index 57f86c63a463..027a3b07d329 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c @@ -390,8 +390,8 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt) struct ib_qp_init_attr qp_attr; unsigned int ctxts, rq_depth; struct ib_device *dev; - struct sockaddr *sap; int ret = 0; + RPC_IFDEBUG(struct sockaddr *sap); listen_rdma = container_of(xprt, struct svcxprt_rdma, sc_xprt); clear_bit(XPT_CONN, &xprt->xpt_flags); @@ -525,6 +525,7 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt) if (ret) goto errout; +#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) dprintk("svcrdma: new connection %p accepted:\n", newxprt); sap = (struct sockaddr *)&newxprt->sc_cm_id->route.addr.src_addr; dprintk(" local address : %pIS:%u\n", sap, rpc_get_port(sap)); @@ -535,6 +536,7 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt) dprintk(" rdma_rw_ctxs : %d\n", ctxts); dprintk(" max_requests : %d\n", newxprt->sc_max_requests); dprintk(" ord : %d\n", conn_param.initiator_depth); +#endif trace_svcrdma_xprt_accept(&newxprt->sc_xprt); return &newxprt->sc_xprt; @@ -588,11 +590,6 @@ static void __svc_rdma_free(struct work_struct *work) if (rdma->sc_qp && !IS_ERR(rdma->sc_qp)) ib_drain_qp(rdma->sc_qp); - /* We should only be called from kref_put */ - if (kref_read(&xprt->xpt_ref) != 0) - pr_err("svcrdma: sc_xprt still in use? (%d)\n", - kref_read(&xprt->xpt_ref)); - svc_rdma_flush_recv_queues(rdma); /* Final put of backchannel client transport */ |