Commit 5e4d6597 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'nfsd-4.17' of git://linux-nfs.org/~bfields/linux 

Pull nfsd updates from Bruce Fields:
 "Chuck Lever did a bunch of work on nfsd tracepoints, on RDMA, and on
  server xdr decoding (with an eye towards eliminating a data copy in
  the RDMA case).

  I did some refactoring of the delegation code in preparation for
  eliminating some delegation self-conflicts and implementing write
  delegations"

* tag 'nfsd-4.17' of git://linux-nfs.org/~bfields/linux: (40 commits)
  nfsd: fix incorrect umasks
  sunrpc: remove incorrect HMAC request initialization
  NFSD: Clean up legacy NFS SYMLINK argument XDR decoders
  NFSD: Clean up legacy NFS WRITE argument XDR decoders
  nfsd: Trace NFSv4 COMPOUND execution
  nfsd: Add I/O trace points in the NFSv4 read proc
  nfsd: Add I/O trace points in the NFSv4 write path
  nfsd: Add "nfsd_" to trace point names
  nfsd: Record request byte count, not count of vectors
  nfsd: Fix NFSD trace points
  svc: Report xprt dequeue latency
  sunrpc: Report per-RPC execution stats
  sunrpc: Re-purpose trace_svc_process
  sunrpc: Save remote presentation address in svc_xprt for trace events
  sunrpc: Simplify trace_svc_recv
  sunrpc: Simplify do_enqueue tracing
  sunrpc: Move trace_svc_xprt_dequeue()
  sunrpc: Update show_svc_xprt_flags() to include recently added flags
  svc: Simplify ->xpo_secure_port
  sunrpc: Remove unneeded pointer dereference
  ...
parents 274c0e74 880a3a53

fs/lockd/svc.c

+2 −2
Original line number Diff line number Diff line
@@ -57,8 +57,8 @@ static struct task_struct *nlmsvc_task; 
static struct svc_rqst		*nlmsvc_rqst;

unsigned long			nlmsvc_timeout;



atomic_t nlm_ntf_refcnt = ATOMIC_INIT(0);

DECLARE_WAIT_QUEUE_HEAD(nlm_ntf_wq);

static atomic_t nlm_ntf_refcnt = ATOMIC_INIT(0);

static DECLARE_WAIT_QUEUE_HEAD(nlm_ntf_wq);



unsigned int lockd_net_id;

fs/nfsd/nfs3proc.c

+16 −2
Original line number Diff line number Diff line
@@ -192,6 +192,7 @@ nfsd3_proc_write(struct svc_rqst *rqstp) 
	struct nfsd3_writeres *resp = rqstp->rq_resp;

	__be32	nfserr;

	unsigned long cnt = argp->len;

	unsigned int nvecs;



	dprintk("nfsd: WRITE(3)    %s %d bytes at %Lu%s\n",

				SVCFH_fmt(&argp->fh),
@@ -201,9 +202,12 @@ nfsd3_proc_write(struct svc_rqst *rqstp) 


	fh_copy(&resp->fh, &argp->fh);

	resp->committed = argp->stable;

	nvecs = svc_fill_write_vector(rqstp, &argp->first, cnt);

	if (!nvecs)

		RETURN_STATUS(nfserr_io);

	nfserr = nfsd_write(rqstp, &resp->fh, argp->offset,

				rqstp->rq_vec, argp->vlen,

				&cnt, resp->committed);

			    rqstp->rq_vec, nvecs, &cnt,

			    resp->committed);

	resp->count = cnt;

	RETURN_STATUS(nfserr);

}
@@ -279,6 +283,16 @@ nfsd3_proc_symlink(struct svc_rqst *rqstp) 
	struct nfsd3_diropres *resp = rqstp->rq_resp;

	__be32	nfserr;



	if (argp->tlen == 0)

		RETURN_STATUS(nfserr_inval);

	if (argp->tlen > NFS3_MAXPATHLEN)

		RETURN_STATUS(nfserr_nametoolong);



	argp->tname = svc_fill_symlink_pathname(rqstp, &argp->first,

						argp->tlen);

	if (IS_ERR(argp->tname))

		RETURN_STATUS(nfserrno(PTR_ERR(argp->tname)));



	dprintk("nfsd: SYMLINK(3)  %s %.*s -> %.*s\n",

				SVCFH_fmt(&argp->ffh),

				argp->flen, argp->fname,

fs/nfsd/nfs3xdr.c

+16 −51
Original line number Diff line number Diff line
@@ -391,7 +391,7 @@ int 
nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p)

{

	struct nfsd3_writeargs *args = rqstp->rq_argp;

	unsigned int len, v, hdr, dlen;

	unsigned int len, hdr, dlen;

	u32 max_blocksize = svc_max_payload(rqstp);

	struct kvec *head = rqstp->rq_arg.head;

	struct kvec *tail = rqstp->rq_arg.tail;
@@ -433,17 +433,9 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p) 
		args->count = max_blocksize;

		len = args->len = max_blocksize;

	}

	rqstp->rq_vec[0].iov_base = (void*)p;

	rqstp->rq_vec[0].iov_len = head->iov_len - hdr;

	v = 0;

	while (len > rqstp->rq_vec[v].iov_len) {

		len -= rqstp->rq_vec[v].iov_len;

		v++;

		rqstp->rq_vec[v].iov_base = page_address(rqstp->rq_pages[v]);

		rqstp->rq_vec[v].iov_len = PAGE_SIZE;

	}

	rqstp->rq_vec[v].iov_len = len;

	args->vlen = v + 1;



	args->first.iov_base = (void *)p;

	args->first.iov_len = head->iov_len - hdr;

	return 1;

}
@@ -489,51 +481,24 @@ int 
nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p)

{

	struct nfsd3_symlinkargs *args = rqstp->rq_argp;

	unsigned int len, avail;

	char *old, *new;

	struct kvec *vec;

	char *base = (char *)p;

	size_t dlen;



	if (!(p = decode_fh(p, &args->ffh)) ||

	    !(p = decode_filename(p, &args->fname, &args->flen))

		)

	    !(p = decode_filename(p, &args->fname, &args->flen)))

		return 0;

	p = decode_sattr3(p, &args->attrs);



	/* now decode the pathname, which might be larger than the first page.

	 * As we have to check for nul's anyway, we copy it into a new page

	 * This page appears in the rq_res.pages list, but as pages_len is always

	 * 0, it won't get in the way

	 */

	len = ntohl(*p++);

	if (len == 0 || len > NFS3_MAXPATHLEN || len >= PAGE_SIZE)

		return 0;

	args->tname = new = page_address(*(rqstp->rq_next_page++));

	args->tlen = len;

	/* first copy and check from the first page */

	old = (char*)p;

	vec = &rqstp->rq_arg.head[0];

	if ((void *)old > vec->iov_base + vec->iov_len)

		return 0;

	avail = vec->iov_len - (old - (char*)vec->iov_base);

	while (len && avail && *old) {

		*new++ = *old++;

		len--;

		avail--;

	}

	/* now copy next page if there is one */

	if (len && !avail && rqstp->rq_arg.page_len) {

		avail = min_t(unsigned int, rqstp->rq_arg.page_len, PAGE_SIZE);

		old = page_address(rqstp->rq_arg.pages[0]);

	}

	while (len && avail && *old) {

		*new++ = *old++;

		len--;

		avail--;

	}

	*new = '\0';

	if (len)

		return 0;

	args->tlen = ntohl(*p++);



	args->first.iov_base = p;

	args->first.iov_len = rqstp->rq_arg.head[0].iov_len;

	args->first.iov_len -= (char *)p - base;



	dlen = args->first.iov_len + rqstp->rq_arg.page_len +

	       rqstp->rq_arg.tail[0].iov_len;

	if (dlen < XDR_QUADLEN(args->tlen) << 2)

		return 0;

	return 1;

}

fs/nfsd/nfs4callback.c

+2 −2
Original line number Diff line number Diff line
@@ -223,8 +223,8 @@ static int nfs_cb_stat_to_errno(int status) 
	return -status;

}



static int decode_cb_op_status(struct xdr_stream *xdr, enum nfs_opnum4 expected,

			       int *status)

static int decode_cb_op_status(struct xdr_stream *xdr,

			       enum nfs_cb_opnum4 expected, int *status)

{

	__be32 *p;

	u32 op;

fs/nfsd/nfs4layouts.c

+8 −8
Original line number Diff line number Diff line
@@ -165,7 +165,7 @@ nfsd4_free_layout_stateid(struct nfs4_stid *stid) 
	struct nfs4_client *clp = ls->ls_stid.sc_client;

	struct nfs4_file *fp = ls->ls_stid.sc_file;



	trace_layoutstate_free(&ls->ls_stid.sc_stateid);

	trace_nfsd_layoutstate_free(&ls->ls_stid.sc_stateid);



	spin_lock(&clp->cl_lock);

	list_del_init(&ls->ls_perclnt);
@@ -264,7 +264,7 @@ nfsd4_alloc_layout_stateid(struct nfsd4_compound_state *cstate, 
	list_add(&ls->ls_perfile, &fp->fi_lo_states);

	spin_unlock(&fp->fi_lock);



	trace_layoutstate_alloc(&ls->ls_stid.sc_stateid);

	trace_nfsd_layoutstate_alloc(&ls->ls_stid.sc_stateid);

	return ls;

}
@@ -334,7 +334,7 @@ nfsd4_recall_file_layout(struct nfs4_layout_stateid *ls) 
	if (list_empty(&ls->ls_layouts))

		goto out_unlock;



	trace_layout_recall(&ls->ls_stid.sc_stateid);

	trace_nfsd_layout_recall(&ls->ls_stid.sc_stateid);



	refcount_inc(&ls->ls_stid.sc_count);

	nfsd4_run_cb(&ls->ls_recall);
@@ -507,7 +507,7 @@ nfsd4_return_file_layouts(struct svc_rqst *rqstp, 
						false, lrp->lr_layout_type,

						&ls);

	if (nfserr) {

		trace_layout_return_lookup_fail(&lrp->lr_sid);

		trace_nfsd_layout_return_lookup_fail(&lrp->lr_sid);

		return nfserr;

	}
@@ -523,7 +523,7 @@ nfsd4_return_file_layouts(struct svc_rqst *rqstp, 
			nfs4_inc_and_copy_stateid(&lrp->lr_sid, &ls->ls_stid);

		lrp->lrs_present = 1;

	} else {

		trace_layoutstate_unhash(&ls->ls_stid.sc_stateid);

		trace_nfsd_layoutstate_unhash(&ls->ls_stid.sc_stateid);

		nfs4_unhash_stid(&ls->ls_stid);

		lrp->lrs_present = 0;

	}
@@ -694,7 +694,7 @@ nfsd4_cb_layout_done(struct nfsd4_callback *cb, struct rpc_task *task) 
		/*

		 * Unknown error or non-responding client, we'll need to fence.

		 */

		trace_layout_recall_fail(&ls->ls_stid.sc_stateid);

		trace_nfsd_layout_recall_fail(&ls->ls_stid.sc_stateid);



		ops = nfsd4_layout_ops[ls->ls_layout_type];

		if (ops->fence_client)
@@ -703,7 +703,7 @@ nfsd4_cb_layout_done(struct nfsd4_callback *cb, struct rpc_task *task) 
			nfsd4_cb_layout_fail(ls);

		return -1;

	case -NFS4ERR_NOMATCHING_LAYOUT:

		trace_layout_recall_done(&ls->ls_stid.sc_stateid);

		trace_nfsd_layout_recall_done(&ls->ls_stid.sc_stateid);

		task->tk_status = 0;

		return 1;

	}
@@ -716,7 +716,7 @@ nfsd4_cb_layout_release(struct nfsd4_callback *cb) 
		container_of(cb, struct nfs4_layout_stateid, ls_recall);

	LIST_HEAD(reaplist);



	trace_layout_recall_release(&ls->ls_stid.sc_stateid);

	trace_nfsd_layout_recall_release(&ls->ls_stid.sc_stateid);



	nfsd4_return_all_layouts(ls, &reaplist);

	nfsd4_free_layouts(&reaplist);

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