mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-24 04:34:08 +08:00
[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>
This commit is contained in:
Steven Whitehouse
parent
aa6a85a971
commit
b381beadee
@ -30,7 +30,6 @@ gfs2-y := \
|
||||
ops_vm.o \
|
||||
page.o \
|
||||
quota.o \
|
||||
resize.o \
|
||||
recovery.o \
|
||||
rgrp.o \
|
||||
super.o \
|
||||
|
||||
291
fs/gfs2/resize.c
291
fs/gfs2/resize.c
@ -1,291 +0,0 @@
|
||||
/*
|
||||
* 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;
|
||||
}
|
||||
|
||||
@ -1,19 +0,0 @@
|
||||
/*
|
||||
* 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__ */
|
||||
Loading…
Reference in New Issue
Block a user