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Diffstat (limited to 'fs/nfs/blocklayout/blocklayoutdm.c')
-rw-r--r--fs/nfs/blocklayout/blocklayoutdm.c108
1 files changed, 0 insertions, 108 deletions
diff --git a/fs/nfs/blocklayout/blocklayoutdm.c b/fs/nfs/blocklayout/blocklayoutdm.c
deleted file mode 100644
index 8999cfddd866..000000000000
--- a/fs/nfs/blocklayout/blocklayoutdm.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * linux/fs/nfs/blocklayout/blocklayoutdm.c
- *
- * Module for the NFSv4.1 pNFS block layout driver.
- *
- * Copyright (c) 2007 The Regents of the University of Michigan.
- * All rights reserved.
- *
- * Fred Isaman <iisaman@umich.edu>
- * Andy Adamson <andros@citi.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 from the
- * university of michigan as to its fitness for any purpose, and without
- * warranty by the university of michigan of any kind, either express
- * or implied, including without limitation the implied warranties of
- * merchantability and fitness for a particular purpose. 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 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/genhd.h> /* gendisk - used in a dprintk*/
-#include <linux/sched.h>
-#include <linux/hash.h>
-
-#include "blocklayout.h"
-
-#define NFSDBG_FACILITY NFSDBG_PNFS_LD
-
-static void dev_remove(struct net *net, dev_t dev)
-{
- struct bl_pipe_msg bl_pipe_msg;
- struct rpc_pipe_msg *msg = &bl_pipe_msg.msg;
- struct bl_dev_msg bl_umount_request;
- struct bl_msg_hdr bl_msg = {
- .type = BL_DEVICE_UMOUNT,
- .totallen = sizeof(bl_umount_request),
- };
- uint8_t *dataptr;
- DECLARE_WAITQUEUE(wq, current);
- struct nfs_net *nn = net_generic(net, nfs_net_id);
-
- dprintk("Entering %s\n", __func__);
-
- bl_pipe_msg.bl_wq = &nn->bl_wq;
- memset(msg, 0, sizeof(*msg));
- msg->len = sizeof(bl_msg) + bl_msg.totallen;
- msg->data = kzalloc(msg->len, GFP_NOFS);
- if (!msg->data)
- goto out;
-
- memset(&bl_umount_request, 0, sizeof(bl_umount_request));
- bl_umount_request.major = MAJOR(dev);
- bl_umount_request.minor = MINOR(dev);
-
- memcpy(msg->data, &bl_msg, sizeof(bl_msg));
- dataptr = (uint8_t *) msg->data;
- memcpy(&dataptr[sizeof(bl_msg)], &bl_umount_request, sizeof(bl_umount_request));
-
- add_wait_queue(&nn->bl_wq, &wq);
- if (rpc_queue_upcall(nn->bl_device_pipe, msg) < 0) {
- remove_wait_queue(&nn->bl_wq, &wq);
- goto out;
- }
-
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule();
- __set_current_state(TASK_RUNNING);
- remove_wait_queue(&nn->bl_wq, &wq);
-
-out:
- kfree(msg->data);
-}
-
-/*
- * Release meta device
- */
-static void nfs4_blk_metadev_release(struct pnfs_block_dev *bdev)
-{
- dprintk("%s Releasing\n", __func__);
- nfs4_blkdev_put(bdev->bm_mdev);
- dev_remove(bdev->net, bdev->bm_mdev->bd_dev);
-}
-
-void bl_free_block_dev(struct pnfs_block_dev *bdev)
-{
- if (bdev) {
- if (bdev->bm_mdev) {
- dprintk("%s Removing DM device: %d:%d\n",
- __func__,
- MAJOR(bdev->bm_mdev->bd_dev),
- MINOR(bdev->bm_mdev->bd_dev));
- nfs4_blk_metadev_release(bdev);
- }
- kfree(bdev);
- }
-}