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Commit 6cccbb6f authored by Weston Andros Adamson's avatar Weston Andros Adamson Committed by Tom Haynes
Browse files

nfs: rename pgio header ds_idx to ds_commit_idx 



'ds_commit_idx' is a better name - it is used to select the right
commit bucket for pnfs.

Signed-off-by: default avatarWeston Andros Adamson <dros@primarydata.com>
parent 309a1d65

fs/nfs/direct.c

+6 −8
Original line number Diff line number Diff line
@@ -112,22 +112,22 @@ static inline int put_dreq(struct nfs_direct_req *dreq) 
 * nfs_direct_select_verf - select the right verifier

 * @dreq - direct request possibly spanning multiple servers

 * @ds_clp - nfs_client of data server or NULL if MDS / non-pnfs

 * @ds_idx - index of data server in data server list, only valid if ds_clp set

 * @commit_idx - commit bucket index for the DS

 *

 * returns the correct verifier to use given the role of the server

 */

static struct nfs_writeverf *

nfs_direct_select_verf(struct nfs_direct_req *dreq,

		       struct nfs_client *ds_clp,

		       int ds_idx)

		       int commit_idx)

{

	struct nfs_writeverf *verfp = &dreq->verf;



#ifdef CONFIG_NFS_V4_1

	if (ds_clp) {

		/* pNFS is in use, use the DS verf */

		if (ds_idx >= 0 && ds_idx < dreq->ds_cinfo.nbuckets)

			verfp = &dreq->ds_cinfo.buckets[ds_idx].direct_verf;

		if (commit_idx >= 0 && commit_idx < dreq->ds_cinfo.nbuckets)

			verfp = &dreq->ds_cinfo.buckets[commit_idx].direct_verf;

		else

			WARN_ON_ONCE(1);

	}
@@ -148,8 +148,7 @@ static void nfs_direct_set_hdr_verf(struct nfs_direct_req *dreq, 
{

	struct nfs_writeverf *verfp;



	verfp = nfs_direct_select_verf(dreq, hdr->ds_clp,

				      hdr->ds_idx);

	verfp = nfs_direct_select_verf(dreq, hdr->ds_clp, hdr->ds_commit_idx);

	WARN_ON_ONCE(verfp->committed >= 0);

	memcpy(verfp, &hdr->verf, sizeof(struct nfs_writeverf));

	WARN_ON_ONCE(verfp->committed < 0);
@@ -169,8 +168,7 @@ static int nfs_direct_set_or_cmp_hdr_verf(struct nfs_direct_req *dreq, 
{

	struct nfs_writeverf *verfp;



	verfp = nfs_direct_select_verf(dreq, hdr->ds_clp,

					 hdr->ds_idx);

	verfp = nfs_direct_select_verf(dreq, hdr->ds_clp, hdr->ds_commit_idx);

	if (verfp->committed < 0) {

		nfs_direct_set_hdr_verf(dreq, hdr);

		return 0;

fs/nfs/filelayout/filelayout.c

+2 −2
Original line number Diff line number Diff line
@@ -492,7 +492,7 @@ filelayout_read_pagelist(struct nfs_pgio_header *hdr) 
	/* No multipath support. Use first DS */

	atomic_inc(&ds->ds_clp->cl_count);

	hdr->ds_clp = ds->ds_clp;

	hdr->ds_idx = idx;

	hdr->ds_commit_idx = idx;

	fh = nfs4_fl_select_ds_fh(lseg, j);

	if (fh)

		hdr->args.fh = fh;
@@ -536,7 +536,7 @@ filelayout_write_pagelist(struct nfs_pgio_header *hdr, int sync) 
	hdr->pgio_done_cb = filelayout_write_done_cb;

	atomic_inc(&ds->ds_clp->cl_count);

	hdr->ds_clp = ds->ds_clp;

	hdr->ds_idx = idx;

	hdr->ds_commit_idx = idx;

	fh = nfs4_fl_select_ds_fh(lseg, j);

	if (fh)

		hdr->args.fh = fh;

include/linux/nfs_xdr.h

+1 −1
Original line number Diff line number Diff line
@@ -1328,7 +1328,7 @@ struct nfs_pgio_header { 
	__u64			mds_offset;	/* Filelayout dense stripe */

	struct nfs_page_array	page_array;

	struct nfs_client	*ds_clp;	/* pNFS data server */

	int			ds_idx;		/* ds index if ds_clp is set */

	int			ds_commit_idx;	/* ds index if ds_clp is set */

};



struct nfs_mds_commit_info {