NFS client bugfixes for Linux 5.9

Highlights include:
 
 Bugfixes:
 - Fix an NFS/RDMA resource leak
 - Fix the error handling during delegation recall
 - NFSv4.0 needs to return the delegation on a zero-stateid SETATTR
 - Stop printk reading past end of string
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Merge tag 'nfs-for-5.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:

 - Fix an NFS/RDMA resource leak

 - Fix the error handling during delegation recall

 - NFSv4.0 needs to return the delegation on a zero-stateid SETATTR

 - Stop printk reading past end of string

* tag 'nfs-for-5.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  SUNRPC: stop printk reading past end of string
  NFS: Zero-stateid SETATTR should first return delegation
  NFSv4.1 handle ERR_DELAY error reclaiming locking state on delegation recall
  xprtrdma: Release in-flight MRs on disconnect
This commit is contained in:
Linus Torvalds 2020-09-09 11:14:20 -07:00
commit ab29a807a7
3 changed files with 13 additions and 4 deletions

View File

@ -3293,8 +3293,10 @@ static int _nfs4_do_setattr(struct inode *inode,
/* Servers should only apply open mode checks for file size changes */
truncate = (arg->iap->ia_valid & ATTR_SIZE) ? true : false;
if (!truncate)
if (!truncate) {
nfs4_inode_make_writeable(inode);
goto zero_stateid;
}
if (nfs4_copy_delegation_stateid(inode, FMODE_WRITE, &arg->stateid, &delegation_cred)) {
/* Use that stateid */
@ -7298,7 +7300,12 @@ int nfs4_lock_delegation_recall(struct file_lock *fl, struct nfs4_state *state,
err = nfs4_set_lock_state(state, fl);
if (err != 0)
return err;
err = _nfs4_do_setlk(state, F_SETLK, fl, NFS_LOCK_NEW);
do {
err = _nfs4_do_setlk(state, F_SETLK, fl, NFS_LOCK_NEW);
if (err != -NFS4ERR_DELAY)
break;
ssleep(1);
} while (err == -NFS4ERR_DELAY);
return nfs4_handle_delegation_recall_error(server, state, stateid, fl, err);
}

View File

@ -982,8 +982,8 @@ static int rpcb_dec_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr,
p = xdr_inline_decode(xdr, len);
if (unlikely(p == NULL))
goto out_fail;
dprintk("RPC: %5u RPCB_%s reply: %s\n", req->rq_task->tk_pid,
req->rq_task->tk_msg.rpc_proc->p_name, (char *)p);
dprintk("RPC: %5u RPCB_%s reply: %*pE\n", req->rq_task->tk_pid,
req->rq_task->tk_msg.rpc_proc->p_name, len, (char *)p);
if (rpc_uaddr2sockaddr(req->rq_xprt->xprt_net, (char *)p, len,
sap, sizeof(address)) == 0)

View File

@ -933,6 +933,8 @@ static void rpcrdma_req_reset(struct rpcrdma_req *req)
rpcrdma_regbuf_dma_unmap(req->rl_sendbuf);
rpcrdma_regbuf_dma_unmap(req->rl_recvbuf);
frwr_reset(req);
}
/* ASSUMPTION: the rb_allreqs list is stable for the duration,