More NFS Client Bugfixes for Linux 5.8
Bugfixes: - NFS: Fix interrupted slots by using the SEQUENCE operation - SUNRPC: reverted03727b248
to fix unkillable IOs - xprtrdma: Fix double-free in rpcrdma_ep_create() - xprtrdma: Fix recursion into rpcrdma_xprt_disconnect() - xprtrdma: Fix return code from rpcrdma_xprt_connect() - xprtrdma: Fix handling of connect errors - xprtrdma: Fix incorrect header size calculations -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEnZ5MQTpR7cLU7KEp18tUv7ClQOsFAl8SFqQACgkQ18tUv7Cl QOt76Q/9H/SrhERk64bErRLIvp0Gy6fI+U++pvNhDEUQfsPcrSYszMwmjBQ0yVet xZv/TP70GRY3EzKQ7TG8X9dX/PIRRdM9Sg6Xg4dLiJTJfVOj01ddwLHkJ0yt67wS 7TrWtIvL98vAhQRggHBg9E9ZgFFn1mCLmGQSgvBnQM9wlUmIrCf1UptlSNlnuGjn ogoT5DM9L5X5Z2AGDvLGHWviS8+yl55JmBolGz7yoE/wDWcAASCwK23cXPDfdLCe kbUaV06uD/77lIirM0PazIMJWmrZvc4+AyJBu1VOAK6RWkZ1ED47dQq9FMZpyYfK gvrw771Le4bhbZpIG1u4pS5/bpTQGdHJ4TRCA409rkSX5J+FxUsaLYnAcPtRVuiE 2dPOAQYrPgB0P+gb1mKfRD/c34+ooY3KUDfn28RFyaFdN9g4+bkLa0zYkj77q/l8 F938ejd7K3gpsKLssOjLajL+4TJC+f7aFPEAK5qKFpA/t1riH3qTvy8H/wjXumSF MaNezJbPoDRTpLzNbeld8MKN5/4wegnhym2k6MIuobAzTF+rL/VJZA3Ke70PACzy rISzBV0Stp8rT3pZFa6rWsPjYzvTd5rskWyqBD+Ep0XincxHNr0mrgRUKSYfdser +YnPDJb69rPFNz/XyvDFJW4nRKK/SnzHpvMngkBFUyzsdgvHYfs= =LUoM -----END PGP SIGNATURE----- Merge tag 'nfs-for-5.8-3' of git://git.linux-nfs.org/projects/anna/linux-nfs into master Pull NFS client fixes from Anna Schumaker: "A few more NFS client bugfixes for Linux 5.8: NFS: - Fix interrupted slots by using the SEQUENCE operation SUNRPC: - revertd03727b248
to fix unkillable IOs xprtrdma: - Fix double-free in rpcrdma_ep_create() - Fix recursion into rpcrdma_xprt_disconnect() - Fix return code from rpcrdma_xprt_connect() - Fix handling of connect errors - Fix incorrect header size calculations" * tag 'nfs-for-5.8-3' of git://git.linux-nfs.org/projects/anna/linux-nfs: SUNRPC revertingd03727b248
("NFSv4 fix CLOSE not waiting for direct IO compeletion") xprtrdma: fix incorrect header size calculations NFS: Fix interrupted slots by sending a solo SEQUENCE operation xprtrdma: Fix handling of connect errors xprtrdma: Fix return code from rpcrdma_xprt_connect() xprtrdma: Fix recursion into rpcrdma_xprt_disconnect() xprtrdma: Fix double-free in rpcrdma_ep_create()
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Коммит
6a70f89cc5
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@ -267,6 +267,8 @@ static void nfs_direct_complete(struct nfs_direct_req *dreq)
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{
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struct inode *inode = dreq->inode;
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inode_dio_end(inode);
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if (dreq->iocb) {
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long res = (long) dreq->error;
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if (dreq->count != 0) {
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@ -278,10 +280,7 @@ static void nfs_direct_complete(struct nfs_direct_req *dreq)
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complete(&dreq->completion);
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igrab(inode);
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nfs_direct_req_release(dreq);
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inode_dio_end(inode);
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iput(inode);
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}
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static void nfs_direct_read_completion(struct nfs_pgio_header *hdr)
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@ -411,10 +410,8 @@ static ssize_t nfs_direct_read_schedule_iovec(struct nfs_direct_req *dreq,
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* generic layer handle the completion.
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*/
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if (requested_bytes == 0) {
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igrab(inode);
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nfs_direct_req_release(dreq);
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inode_dio_end(inode);
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iput(inode);
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nfs_direct_req_release(dreq);
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return result < 0 ? result : -EIO;
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}
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@ -867,10 +864,8 @@ static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq,
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* generic layer handle the completion.
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*/
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if (requested_bytes == 0) {
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igrab(inode);
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nfs_direct_req_release(dreq);
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inode_dio_end(inode);
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iput(inode);
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nfs_direct_req_release(dreq);
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return result < 0 ? result : -EIO;
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}
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@ -83,7 +83,6 @@ nfs_file_release(struct inode *inode, struct file *filp)
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dprintk("NFS: release(%pD2)\n", filp);
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nfs_inc_stats(inode, NFSIOS_VFSRELEASE);
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inode_dio_wait(inode);
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nfs_file_clear_open_context(filp);
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return 0;
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}
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@ -774,6 +774,14 @@ static void nfs4_slot_sequence_acked(struct nfs4_slot *slot,
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slot->seq_nr_last_acked = seqnr;
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}
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static void nfs4_probe_sequence(struct nfs_client *client, const struct cred *cred,
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struct nfs4_slot *slot)
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{
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struct rpc_task *task = _nfs41_proc_sequence(client, cred, slot, true);
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if (!IS_ERR(task))
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rpc_put_task_async(task);
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}
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static int nfs41_sequence_process(struct rpc_task *task,
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struct nfs4_sequence_res *res)
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{
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@ -790,6 +798,7 @@ static int nfs41_sequence_process(struct rpc_task *task,
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goto out;
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session = slot->table->session;
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clp = session->clp;
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trace_nfs4_sequence_done(session, res);
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@ -804,7 +813,6 @@ static int nfs41_sequence_process(struct rpc_task *task,
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nfs4_slot_sequence_acked(slot, slot->seq_nr);
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/* Update the slot's sequence and clientid lease timer */
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slot->seq_done = 1;
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clp = session->clp;
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do_renew_lease(clp, res->sr_timestamp);
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/* Check sequence flags */
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nfs41_handle_sequence_flag_errors(clp, res->sr_status_flags,
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@ -852,10 +860,18 @@ static int nfs41_sequence_process(struct rpc_task *task,
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/*
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* Were one or more calls using this slot interrupted?
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* If the server never received the request, then our
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* transmitted slot sequence number may be too high.
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* transmitted slot sequence number may be too high. However,
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* if the server did receive the request then it might
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* accidentally give us a reply with a mismatched operation.
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* We can sort this out by sending a lone sequence operation
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* to the server on the same slot.
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*/
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if ((s32)(slot->seq_nr - slot->seq_nr_last_acked) > 1) {
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slot->seq_nr--;
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if (task->tk_msg.rpc_proc != &nfs4_procedures[NFSPROC4_CLNT_SEQUENCE]) {
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nfs4_probe_sequence(clp, task->tk_msg.rpc_cred, slot);
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res->sr_slot = NULL;
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}
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goto retry_nowait;
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}
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/*
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@ -71,7 +71,7 @@ static unsigned int rpcrdma_max_call_header_size(unsigned int maxsegs)
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size = RPCRDMA_HDRLEN_MIN;
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/* Maximum Read list size */
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size = maxsegs * rpcrdma_readchunk_maxsz * sizeof(__be32);
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size += maxsegs * rpcrdma_readchunk_maxsz * sizeof(__be32);
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/* Minimal Read chunk size */
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size += sizeof(__be32); /* segment count */
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@ -94,7 +94,7 @@ static unsigned int rpcrdma_max_reply_header_size(unsigned int maxsegs)
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size = RPCRDMA_HDRLEN_MIN;
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/* Maximum Write list size */
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size = sizeof(__be32); /* segment count */
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size += sizeof(__be32); /* segment count */
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size += maxsegs * rpcrdma_segment_maxsz * sizeof(__be32);
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size += sizeof(__be32); /* list discriminator */
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@ -249,6 +249,11 @@ xprt_rdma_connect_worker(struct work_struct *work)
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xprt->stat.connect_start;
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xprt_set_connected(xprt);
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rc = -EAGAIN;
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} else {
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/* Force a call to xprt_rdma_close to clean up */
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spin_lock(&xprt->transport_lock);
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set_bit(XPRT_CLOSE_WAIT, &xprt->state);
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spin_unlock(&xprt->transport_lock);
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}
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xprt_wake_pending_tasks(xprt, rc);
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}
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@ -281,17 +281,19 @@ rpcrdma_cm_event_handler(struct rdma_cm_id *id, struct rdma_cm_event *event)
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break;
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case RDMA_CM_EVENT_CONNECT_ERROR:
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ep->re_connect_status = -ENOTCONN;
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goto disconnected;
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goto wake_connect_worker;
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case RDMA_CM_EVENT_UNREACHABLE:
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ep->re_connect_status = -ENETUNREACH;
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goto disconnected;
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goto wake_connect_worker;
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case RDMA_CM_EVENT_REJECTED:
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dprintk("rpcrdma: connection to %pISpc rejected: %s\n",
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sap, rdma_reject_msg(id, event->status));
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ep->re_connect_status = -ECONNREFUSED;
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if (event->status == IB_CM_REJ_STALE_CONN)
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ep->re_connect_status = -EAGAIN;
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goto disconnected;
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ep->re_connect_status = -ENOTCONN;
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wake_connect_worker:
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wake_up_all(&ep->re_connect_wait);
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return 0;
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case RDMA_CM_EVENT_DISCONNECTED:
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ep->re_connect_status = -ECONNABORTED;
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disconnected:
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@ -400,14 +402,14 @@ static int rpcrdma_ep_create(struct rpcrdma_xprt *r_xprt)
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ep = kzalloc(sizeof(*ep), GFP_NOFS);
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if (!ep)
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return -EAGAIN;
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return -ENOTCONN;
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ep->re_xprt = &r_xprt->rx_xprt;
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kref_init(&ep->re_kref);
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id = rpcrdma_create_id(r_xprt, ep);
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if (IS_ERR(id)) {
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rc = PTR_ERR(id);
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goto out_free;
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kfree(ep);
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return PTR_ERR(id);
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}
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__module_get(THIS_MODULE);
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device = id->device;
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@ -506,9 +508,6 @@ static int rpcrdma_ep_create(struct rpcrdma_xprt *r_xprt)
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out_destroy:
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rpcrdma_ep_put(ep);
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rdma_destroy_id(id);
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out_free:
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kfree(ep);
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r_xprt->rx_ep = NULL;
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return rc;
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}
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@ -524,8 +523,6 @@ int rpcrdma_xprt_connect(struct rpcrdma_xprt *r_xprt)
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struct rpcrdma_ep *ep;
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int rc;
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retry:
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rpcrdma_xprt_disconnect(r_xprt);
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rc = rpcrdma_ep_create(r_xprt);
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if (rc)
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return rc;
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@ -540,10 +537,6 @@ retry:
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rpcrdma_ep_get(ep);
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rpcrdma_post_recvs(r_xprt, true);
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rc = rpcrdma_sendctxs_create(r_xprt);
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if (rc)
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goto out;
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rc = rdma_connect(ep->re_id, &ep->re_remote_cma);
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if (rc)
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goto out;
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@ -553,15 +546,19 @@ retry:
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wait_event_interruptible(ep->re_connect_wait,
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ep->re_connect_status != 0);
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if (ep->re_connect_status <= 0) {
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if (ep->re_connect_status == -EAGAIN)
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goto retry;
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rc = ep->re_connect_status;
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goto out;
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}
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rc = rpcrdma_sendctxs_create(r_xprt);
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if (rc) {
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rc = -ENOTCONN;
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goto out;
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}
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rc = rpcrdma_reqs_setup(r_xprt);
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if (rc) {
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rpcrdma_xprt_disconnect(r_xprt);
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rc = -ENOTCONN;
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goto out;
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}
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rpcrdma_mrs_create(r_xprt);
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