1 files changed, 0 insertions, 280 deletions
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
deleted file mode 100644
index 23f930caf1e..00000000000
--- a/fs/nfs/nfs4filelayout.c
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- *  Module for the pnfs nfs4 file layout driver.
- *  Defines all I/O and Policy interface operations, plus code
- *  to register itself with the pNFS client.
- *
- *  Copyright (c) 2002
- *  The Regents of the University of Michigan
- *  All Rights Reserved
- *
- *  Dean Hildebrand <dhildebz@umich.edu>
- *
- *  Permission is granted to use, copy, create derivative works, and
- *  redistribute this software and such derivative works for any purpose,
- *  so long as the name of the University of Michigan is not used in
- *  any advertising or publicity pertaining to the use or distribution
- *  of this software without specific, written prior authorization. If
- *  the above copyright notice or any other identification of the
- *  University of Michigan is included in any copy of any portion of
- *  this software, then the disclaimer below must also be included.
- *
- *  This software is provided as is, without representation or warranty
- *  of any kind either express or implied, including without limitation
- *  the implied warranties of merchantability, fitness for a particular
- *  purpose, or noninfringement.  The Regents of the University of
- *  Michigan shall not be liable for any damages, including special,
- *  indirect, incidental, or consequential damages, with respect to any
- *  claim arising out of or in connection with the use of the software,
- *  even if it has been or is hereafter advised of the possibility of
- *  such damages.
- */
-
-#include <linux/nfs_fs.h>
-
-#include "internal.h"
-#include "nfs4filelayout.h"
-
-#define NFSDBG_FACILITY         NFSDBG_PNFS_LD
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Dean Hildebrand <dhildebz@umich.edu>");
-MODULE_DESCRIPTION("The NFSv4 file layout driver");
-
-static int
-filelayout_set_layoutdriver(struct nfs_server *nfss)
-{
-	int status = pnfs_alloc_init_deviceid_cache(nfss->nfs_client,
-						nfs4_fl_free_deviceid_callback);
-	if (status) {
-		printk(KERN_WARNING "%s: deviceid cache could not be "
-			"initialized\n", __func__);
-		return status;
-	}
-	dprintk("%s: deviceid cache has been initialized successfully\n",
-		__func__);
-	return 0;
-}
-
-/* Clear out the layout by destroying its device list */
-static int
-filelayout_clear_layoutdriver(struct nfs_server *nfss)
-{
-	dprintk("--> %s\n", __func__);
-
-	if (nfss->nfs_client->cl_devid_cache)
-		pnfs_put_deviceid_cache(nfss->nfs_client);
-	return 0;
-}
-
-/*
- * filelayout_check_layout()
- *
- * Make sure layout segment parameters are sane WRT the device.
- * At this point no generic layer initialization of the lseg has occurred,
- * and nothing has been added to the layout_hdr cache.
- *
- */
-static int
-filelayout_check_layout(struct pnfs_layout_hdr *lo,
-			struct nfs4_filelayout_segment *fl,
-			struct nfs4_layoutget_res *lgr,
-			struct nfs4_deviceid *id)
-{
-	struct nfs4_file_layout_dsaddr *dsaddr;
-	int status = -EINVAL;
-	struct nfs_server *nfss = NFS_SERVER(lo->plh_inode);
-
-	dprintk("--> %s\n", __func__);
-
-	if (fl->pattern_offset > lgr->range.offset) {
-		dprintk("%s pattern_offset %lld to large\n",
-				__func__, fl->pattern_offset);
-		goto out;
-	}
-
-	if (fl->stripe_unit % PAGE_SIZE) {
-		dprintk("%s Stripe unit (%u) not page aligned\n",
-			__func__, fl->stripe_unit);
-		goto out;
-	}
-
-	/* find and reference the deviceid */
-	dsaddr = nfs4_fl_find_get_deviceid(nfss->nfs_client, id);
-	if (dsaddr == NULL) {
-		dsaddr = get_device_info(lo->plh_inode, id);
-		if (dsaddr == NULL)
-			goto out;
-	}
-	fl->dsaddr = dsaddr;
-
-	if (fl->first_stripe_index < 0 ||
-	    fl->first_stripe_index >= dsaddr->stripe_count) {
-		dprintk("%s Bad first_stripe_index %d\n",
-				__func__, fl->first_stripe_index);
-		goto out_put;
-	}
-
-	if ((fl->stripe_type == STRIPE_SPARSE &&
-	    fl->num_fh > 1 && fl->num_fh != dsaddr->ds_num) ||
-	    (fl->stripe_type == STRIPE_DENSE &&
-	    fl->num_fh != dsaddr->stripe_count)) {
-		dprintk("%s num_fh %u not valid for given packing\n",
-			__func__, fl->num_fh);
-		goto out_put;
-	}
-
-	if (fl->stripe_unit % nfss->rsize || fl->stripe_unit % nfss->wsize) {
-		dprintk("%s Stripe unit (%u) not aligned with rsize %u "
-			"wsize %u\n", __func__, fl->stripe_unit, nfss->rsize,
-			nfss->wsize);
-	}
-
-	status = 0;
-out:
-	dprintk("--> %s returns %d\n", __func__, status);
-	return status;
-out_put:
-	pnfs_put_deviceid(nfss->nfs_client->cl_devid_cache, &dsaddr->deviceid);
-	goto out;
-}
-
-static void filelayout_free_fh_array(struct nfs4_filelayout_segment *fl)
-{
-	int i;
-
-	for (i = 0; i < fl->num_fh; i++) {
-		if (!fl->fh_array[i])
-			break;
-		kfree(fl->fh_array[i]);
-	}
-	kfree(fl->fh_array);
-	fl->fh_array = NULL;
-}
-
-static void
-_filelayout_free_lseg(struct nfs4_filelayout_segment *fl)
-{
-	filelayout_free_fh_array(fl);
-	kfree(fl);
-}
-
-static int
-filelayout_decode_layout(struct pnfs_layout_hdr *flo,
-			 struct nfs4_filelayout_segment *fl,
-			 struct nfs4_layoutget_res *lgr,
-			 struct nfs4_deviceid *id)
-{
-	uint32_t *p = (uint32_t *)lgr->layout.buf;
-	uint32_t nfl_util;
-	int i;
-
-	dprintk("%s: set_layout_map Begin\n", __func__);
-
-	memcpy(id, p, sizeof(*id));
-	p += XDR_QUADLEN(NFS4_DEVICEID4_SIZE);
-	print_deviceid(id);
-
-	nfl_util = be32_to_cpup(p++);
-	if (nfl_util & NFL4_UFLG_COMMIT_THRU_MDS)
-		fl->commit_through_mds = 1;
-	if (nfl_util & NFL4_UFLG_DENSE)
-		fl->stripe_type = STRIPE_DENSE;
-	else
-		fl->stripe_type = STRIPE_SPARSE;
-	fl->stripe_unit = nfl_util & ~NFL4_UFLG_MASK;
-
-	fl->first_stripe_index = be32_to_cpup(p++);
-	p = xdr_decode_hyper(p, &fl->pattern_offset);
-	fl->num_fh = be32_to_cpup(p++);
-
-	dprintk("%s: nfl_util 0x%X num_fh %u fsi %u po %llu\n",
-		__func__, nfl_util, fl->num_fh, fl->first_stripe_index,
-		fl->pattern_offset);
-
-	fl->fh_array = kzalloc(fl->num_fh * sizeof(struct nfs_fh *),
-			       GFP_KERNEL);
-	if (!fl->fh_array)
-		return -ENOMEM;
-
-	for (i = 0; i < fl->num_fh; i++) {
-		/* Do we want to use a mempool here? */
-		fl->fh_array[i] = kmalloc(sizeof(struct nfs_fh), GFP_KERNEL);
-		if (!fl->fh_array[i]) {
-			filelayout_free_fh_array(fl);
-			return -ENOMEM;
-		}
-		fl->fh_array[i]->size = be32_to_cpup(p++);
-		if (sizeof(struct nfs_fh) < fl->fh_array[i]->size) {
-			printk(KERN_ERR "Too big fh %d received %d\n",
-			       i, fl->fh_array[i]->size);
-			filelayout_free_fh_array(fl);
-			return -EIO;
-		}
-		memcpy(fl->fh_array[i]->data, p, fl->fh_array[i]->size);
-		p += XDR_QUADLEN(fl->fh_array[i]->size);
-		dprintk("DEBUG: %s: fh len %d\n", __func__,
-			fl->fh_array[i]->size);
-	}
-
-	return 0;
-}
-
-static struct pnfs_layout_segment *
-filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid,
-		      struct nfs4_layoutget_res *lgr)
-{
-	struct nfs4_filelayout_segment *fl;
-	int rc;
-	struct nfs4_deviceid id;
-
-	dprintk("--> %s\n", __func__);
-	fl = kzalloc(sizeof(*fl), GFP_KERNEL);
-	if (!fl)
-		return NULL;
-
-	rc = filelayout_decode_layout(layoutid, fl, lgr, &id);
-	if (rc != 0 || filelayout_check_layout(layoutid, fl, lgr, &id)) {
-		_filelayout_free_lseg(fl);
-		return NULL;
-	}
-	return &fl->generic_hdr;
-}
-
-static void
-filelayout_free_lseg(struct pnfs_layout_segment *lseg)
-{
-	struct nfs_server *nfss = NFS_SERVER(lseg->pls_layout->plh_inode);
-	struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg);
-
-	dprintk("--> %s\n", __func__);
-	pnfs_put_deviceid(nfss->nfs_client->cl_devid_cache,
-			  &fl->dsaddr->deviceid);
-	_filelayout_free_lseg(fl);
-}
-
-static struct pnfs_layoutdriver_type filelayout_type = {
-	.id = LAYOUT_NFSV4_1_FILES,
-	.name = "LAYOUT_NFSV4_1_FILES",
-	.owner = THIS_MODULE,
-	.set_layoutdriver = filelayout_set_layoutdriver,
-	.clear_layoutdriver = filelayout_clear_layoutdriver,
-	.alloc_lseg              = filelayout_alloc_lseg,
-	.free_lseg               = filelayout_free_lseg,
-};
-
-static int __init nfs4filelayout_init(void)
-{
-	printk(KERN_INFO "%s: NFSv4 File Layout Driver Registering...\n",
-	       __func__);
-	return pnfs_register_layoutdriver(&filelayout_type);
-}
-
-static void __exit nfs4filelayout_exit(void)
-{
-	printk(KERN_INFO "%s: NFSv4 File Layout Driver Unregistering...\n",
-	       __func__);
-	pnfs_unregister_layoutdriver(&filelayout_type);
-}
-
-module_init(nfs4filelayout_init);
-module_exit(nfs4filelayout_exit);