[GFS2] Remove unused file resize.c

The code in this file is no longer used as the rindex file is
now accessible to userspace, so can be read/written directly.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

fs/gfs2/Makefile

@@ -30,7 +30,6 @@ gfs2-y := \
 	ops_vm.o \
 	page.o \
 	quota.o \
-	resize.o \
 	recovery.o \
 	rgrp.o \
 	super.o \

fs/gfs2/resize.c

-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License v.2.
- */
-
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/completion.h>
-#include <linux/buffer_head.h>
-#include <asm/semaphore.h>
-
-#include "gfs2.h"
-#include "bmap.h"
-#include "dir.h"
-#include "glock.h"
-#include "inode.h"
-#include "jdata.h"
-#include "meta_io.h"
-#include "quota.h"
-#include "resize.h"
-#include "rgrp.h"
-#include "super.h"
-#include "trans.h"
-
-/* A single transaction needs to add the structs to rindex and make the
-   statfs change. */
-
-int gfs2_resize_add_rgrps(struct gfs2_sbd *sdp, char __user *buf,
-			  unsigned int size)
-{
-	unsigned int num = size / sizeof(struct gfs2_rindex);
-	struct gfs2_inode *ip = sdp->sd_rindex;
-	struct gfs2_alloc *al = NULL;
-	struct gfs2_holder i_gh;
-	unsigned int data_blocks, ind_blocks;
-	int alloc_required;
-	unsigned int x;
-	int error;
-
-	gfs2_write_calc_reserv(ip, size, &data_blocks, &ind_blocks);
-
-	error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE,
-				   LM_FLAG_PRIORITY | GL_SYNC, &i_gh);
-	if (error)
-		return error;
-
-	if (!gfs2_is_jdata(ip)) {
-		gfs2_consist_inode(ip);
-		error = -EIO;
-		goto out;
-	}
-
-	error = gfs2_write_alloc_required(ip, ip->i_di.di_size, size,
-					  &alloc_required);
-	if (error)
-		goto out;
-
-	if (alloc_required) {
-		al = gfs2_alloc_get(ip);
-
-		al->al_requested = data_blocks + ind_blocks;
-
-		error = gfs2_inplace_reserve(ip);
-		if (error)
-			goto out_alloc;
-
-		error = gfs2_trans_begin(sdp,
-					 al->al_rgd->rd_ri.ri_length +
-					 data_blocks + ind_blocks +
-					 RES_DINODE + RES_STATFS, 0);
-		if (error)
-			goto out_relse;
-	} else {
-		error = gfs2_trans_begin(sdp, data_blocks +
-					 RES_DINODE + RES_STATFS, 0);
-		if (error)
-			goto out;
-	}
-
-	for (x = 0; x < num; x++) {
-		struct gfs2_rindex ri;
-		char ri_buf[sizeof(struct gfs2_rindex)];
-
-		error = copy_from_user(&ri, buf, sizeof(struct gfs2_rindex));
-		if (error) {
-			error = -EFAULT;
-			goto out_trans;
-		}
-		gfs2_rindex_out(&ri, ri_buf);
-
-		error = gfs2_jdata_write_mem(ip, ri_buf, ip->i_di.di_size,
-					     sizeof(struct gfs2_rindex));
-		if (error < 0)
-			goto out_trans;
-		gfs2_assert_withdraw(sdp, error == sizeof(struct gfs2_rindex));
-		error = 0;
-
-		gfs2_statfs_change(sdp, ri.ri_data, ri.ri_data, 0);
-
-		buf += sizeof(struct gfs2_rindex);
-	}
-
- out_trans:
-	gfs2_trans_end(sdp);
-
- out_relse:
-	if (alloc_required)
-		gfs2_inplace_release(ip);
-
- out_alloc:
-	if (alloc_required)
-		gfs2_alloc_put(ip);
-
- out:
-	ip->i_gl->gl_vn++;
-	gfs2_glock_dq_uninit(&i_gh);
-
-	return error;
-}
-
-static void drop_dentries(struct gfs2_inode *ip)
-{
-	struct inode *inode;
-	struct dentry *d;
-
-	inode = gfs2_ip2v_lookup(ip);
-	if (!inode)
-		return;
-
- restart:
-	spin_lock(&dcache_lock);
-	list_for_each_entry(d, &inode->i_dentry, d_alias) {
-		if (d_unhashed(d))
-			continue;
-		dget_locked(d);
-		__d_drop(d);
-		spin_unlock(&dcache_lock);
-		dput(d);
-		goto restart;
-	}
-	spin_unlock(&dcache_lock);
-
-	iput(inode);
-}
-
-/* This is called by an ioctl to rename an ordinary file that's represented
-   in the vfs to a hidden system file that isn't represented in the vfs.  It's
-   used to add journals, along with the associated system files, to a fs. */
-
-int gfs2_rename2system(struct gfs2_inode *ip,
-		       struct gfs2_inode *old_dip, char *old_name,
-		       struct gfs2_inode *new_dip, char *new_name)
-{
-	struct gfs2_sbd *sdp = ip->i_sbd;
-	struct gfs2_holder ghs[3];
-	struct qstr old_qstr, new_qstr;
-	struct gfs2_inum inum;
-	int alloc_required;
-	struct buffer_head *dibh;
-	int error;
-
-	gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, GL_NOCACHE, ghs);
-	gfs2_holder_init(old_dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1);
-	gfs2_holder_init(new_dip->i_gl, LM_ST_EXCLUSIVE, GL_SYNC, ghs + 2);
-
-	error = gfs2_glock_nq_m(3, ghs);
-	if (error)
-		goto out;	
-
-	error = -EMLINK;
-	if (ip->i_di.di_nlink != 1)
-		goto out_gunlock;
-	error = -EINVAL;
-	if (!S_ISREG(ip->i_di.di_mode))
-		goto out_gunlock;
-
-	old_qstr.name = old_name;
-	old_qstr.len = strlen(old_name);
-	error = gfs2_dir_search(old_dip, &old_qstr, &inum, NULL);
-	switch (error) {
-	case 0:
-		break;
-	default:
-		goto out_gunlock;
-	}
-
-	error = -EINVAL;
-	if (!gfs2_inum_equal(&inum, &ip->i_num))
-		goto out_gunlock;
-
-	new_qstr.name = new_name;
-	new_qstr.len = strlen(new_name);
-	error = gfs2_dir_search(new_dip, &new_qstr, NULL, NULL);
-	switch (error) {
-	case -ENOENT:
-		break;
-	case 0:
-		error = -EEXIST;
-	default:
-		goto out_gunlock;
-	}
-
-	gfs2_alloc_get(ip);
-
-	error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
-	if (error)
-		goto out_alloc;
-
-	error = gfs2_diradd_alloc_required(new_dip, &new_qstr, &alloc_required);
-	if (error)
-		goto out_unhold;
-
-	if (alloc_required) {
-		struct gfs2_alloc *al = gfs2_alloc_get(new_dip);
-
-		al->al_requested = sdp->sd_max_dirres;
-
-		error = gfs2_inplace_reserve(new_dip);
-		if (error)
-			goto out_alloc2;
-
-		error = gfs2_trans_begin(sdp,
-					 sdp->sd_max_dirres +
-					 al->al_rgd->rd_ri.ri_length +
-					 3 * RES_DINODE + RES_LEAF +
-					 RES_STATFS + RES_QUOTA, 0);
-		if (error)
-			goto out_ipreserv;
-	} else {
-		error = gfs2_trans_begin(sdp,
-					 3 * RES_DINODE + 2 * RES_LEAF +
-					 RES_QUOTA, 0);
-		if (error)
-			goto out_unhold;
-	}
-	
-	error = gfs2_dir_del(old_dip, &old_qstr);
-	if (error)
-		goto out_trans;
-
-	error = gfs2_dir_add(new_dip, &new_qstr, &ip->i_num,
-			     IF2DT(ip->i_di.di_mode));
-	if (error)
-		goto out_trans;
-
-	gfs2_quota_change(ip, -ip->i_di.di_blocks, ip->i_di.di_uid,
-			  ip->i_di.di_gid);
-
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (error)
-		goto out_trans;
-	ip->i_di.di_flags |= GFS2_DIF_SYSTEM;
-	gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-	gfs2_dinode_out(&ip->i_di, dibh->b_data);
-	brelse(dibh);
-
-	drop_dentries(ip);
-
- out_trans:
-	gfs2_trans_end(sdp);
-
- out_ipreserv:
-	if (alloc_required)
-		gfs2_inplace_release(new_dip);
-
- out_alloc2:
-	if (alloc_required)
-		gfs2_alloc_put(new_dip);
-
- out_unhold:
-	gfs2_quota_unhold(ip);
-
- out_alloc:
-	gfs2_alloc_put(ip);
-
- out_gunlock:
-	gfs2_glock_dq_m(3, ghs);
-
- out:
-	gfs2_holder_uninit(ghs);
-	gfs2_holder_uninit(ghs + 1);
-	gfs2_holder_uninit(ghs + 2);
-
-	return error;
-}
-

fs/gfs2/resize.h

-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License v.2.
- */
-
-#ifndef __RESIZE_DOT_H__
-#define __RESIZE_DOT_H__
-
-int gfs2_resize_add_rgrps(struct gfs2_sbd *sdp, char __user *buf,
-			  unsigned int size);
-int gfs2_rename2system(struct gfs2_inode *ip,
-		       struct gfs2_inode *old_dip, char *old_name,
-		       struct gfs2_inode *new_dip, char *new_name);
-
-#endif /* __RESIZE_DOT_H__ */