ufs: Remove dead quota code

UFS quota is non-functional at least since 2.6.12 because dq_op was set
to NULL. Since the filesystem exists mainly to allow cooperation with Solaris
and quota format isn't standard, just remove the dead code.

CC: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara 2010-05-20 16:00:36 +02:00
parent 3635046281
commit 8f45c33dec
7 changed files with 1 additions and 195 deletions

View File

@ -12,7 +12,6 @@
#include <linux/stat.h>
#include <linux/time.h>
#include <linux/string.h>
#include <linux/quotaops.h>
#include <linux/buffer_head.h>
#include <linux/capability.h>
#include <linux/bitops.h>
@ -85,9 +84,6 @@ void ufs_free_fragments(struct inode *inode, u64 fragment, unsigned count)
"bit already cleared for fragment %u", i);
}
dquot_free_block(inode, count);
fs32_add(sb, &ucg->cg_cs.cs_nffree, count);
uspi->cs_total.cs_nffree += count;
fs32_add(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, count);
@ -195,7 +191,6 @@ do_more:
ubh_setblock(UCPI_UBH(ucpi), ucpi->c_freeoff, blkno);
if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
ufs_clusteracct (sb, ucpi, blkno, 1);
dquot_free_block(inode, uspi->s_fpb);
fs32_add(sb, &ucg->cg_cs.cs_nbfree, 1);
uspi->cs_total.cs_nbfree++;
@ -511,7 +506,6 @@ static u64 ufs_add_fragments(struct inode *inode, u64 fragment,
struct ufs_cg_private_info * ucpi;
struct ufs_cylinder_group * ucg;
unsigned cgno, fragno, fragoff, count, fragsize, i;
int ret;
UFSD("ENTER, fragment %llu, oldcount %u, newcount %u\n",
(unsigned long long)fragment, oldcount, newcount);
@ -557,11 +551,6 @@ static u64 ufs_add_fragments(struct inode *inode, u64 fragment,
fs32_add(sb, &ucg->cg_frsum[fragsize - count], 1);
for (i = oldcount; i < newcount; i++)
ubh_clrbit (UCPI_UBH(ucpi), ucpi->c_freeoff, fragno + i);
ret = dquot_alloc_block(inode, count);
if (ret) {
*err = ret;
return 0;
}
fs32_sub(sb, &ucg->cg_cs.cs_nffree, count);
fs32_sub(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, count);
@ -598,7 +587,6 @@ static u64 ufs_alloc_fragments(struct inode *inode, unsigned cgno,
struct ufs_cylinder_group * ucg;
unsigned oldcg, i, j, k, allocsize;
u64 result;
int ret;
UFSD("ENTER, ino %lu, cgno %u, goal %llu, count %u\n",
inode->i_ino, cgno, (unsigned long long)goal, count);
@ -667,7 +655,6 @@ cg_found:
for (i = count; i < uspi->s_fpb; i++)
ubh_setbit (UCPI_UBH(ucpi), ucpi->c_freeoff, goal + i);
i = uspi->s_fpb - count;
dquot_free_block(inode, i);
fs32_add(sb, &ucg->cg_cs.cs_nffree, i);
uspi->cs_total.cs_nffree += i;
@ -679,11 +666,6 @@ cg_found:
result = ufs_bitmap_search (sb, ucpi, goal, allocsize);
if (result == INVBLOCK)
return 0;
ret = dquot_alloc_block(inode, count);
if (ret) {
*err = ret;
return 0;
}
for (i = 0; i < count; i++)
ubh_clrbit (UCPI_UBH(ucpi), ucpi->c_freeoff, result + i);
@ -718,7 +700,6 @@ static u64 ufs_alloccg_block(struct inode *inode,
struct ufs_super_block_first * usb1;
struct ufs_cylinder_group * ucg;
u64 result, blkno;
int ret;
UFSD("ENTER, goal %llu\n", (unsigned long long)goal);
@ -752,11 +733,6 @@ gotit:
ubh_clrblock (UCPI_UBH(ucpi), ucpi->c_freeoff, blkno);
if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
ufs_clusteracct (sb, ucpi, blkno, -1);
ret = dquot_alloc_block(inode, uspi->s_fpb);
if (ret) {
*err = ret;
return INVBLOCK;
}
fs32_sub(sb, &ucg->cg_cs.cs_nbfree, 1);
uspi->cs_total.cs_nbfree--;

View File

@ -24,7 +24,6 @@
*/
#include <linux/fs.h>
#include <linux/quotaops.h>
#include "ufs_fs.h"
#include "ufs.h"
@ -41,7 +40,7 @@ const struct file_operations ufs_file_operations = {
.write = do_sync_write,
.aio_write = generic_file_aio_write,
.mmap = generic_file_mmap,
.open = dquot_file_open,
.open = generic_file_open,
.fsync = simple_fsync,
.splice_read = generic_file_splice_read,
};

View File

@ -27,7 +27,6 @@
#include <linux/time.h>
#include <linux/stat.h>
#include <linux/string.h>
#include <linux/quotaops.h>
#include <linux/buffer_head.h>
#include <linux/sched.h>
#include <linux/bitops.h>
@ -95,9 +94,6 @@ void ufs_free_inode (struct inode * inode)
is_directory = S_ISDIR(inode->i_mode);
dquot_free_inode(inode);
dquot_drop(inode);
clear_inode (inode);
if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_iusedoff, bit))
@ -347,21 +343,12 @@ cg_found:
unlock_super (sb);
dquot_initialize(inode);
err = dquot_alloc_inode(inode);
if (err) {
dquot_drop(inode);
goto fail_without_unlock;
}
UFSD("allocating inode %lu\n", inode->i_ino);
UFSD("EXIT\n");
return inode;
fail_remove_inode:
unlock_super(sb);
fail_without_unlock:
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
UFSD("EXIT (FAILED): err %d\n", err);

View File

@ -37,7 +37,6 @@
#include <linux/smp_lock.h>
#include <linux/buffer_head.h>
#include <linux/writeback.h>
#include <linux/quotaops.h>
#include "ufs_fs.h"
#include "ufs.h"
@ -910,9 +909,6 @@ void ufs_delete_inode (struct inode * inode)
{
loff_t old_i_size;
if (!is_bad_inode(inode))
dquot_initialize(inode);
truncate_inode_pages(&inode->i_data, 0);
if (is_bad_inode(inode))
goto no_delete;

View File

@ -30,7 +30,6 @@
#include <linux/time.h>
#include <linux/fs.h>
#include <linux/smp_lock.h>
#include <linux/quotaops.h>
#include "ufs_fs.h"
#include "ufs.h"
@ -86,8 +85,6 @@ static int ufs_create (struct inode * dir, struct dentry * dentry, int mode,
UFSD("BEGIN\n");
dquot_initialize(dir);
inode = ufs_new_inode(dir, mode);
err = PTR_ERR(inode);
@ -112,8 +109,6 @@ static int ufs_mknod (struct inode * dir, struct dentry *dentry, int mode, dev_t
if (!old_valid_dev(rdev))
return -EINVAL;
dquot_initialize(dir);
inode = ufs_new_inode(dir, mode);
err = PTR_ERR(inode);
if (!IS_ERR(inode)) {
@ -138,8 +133,6 @@ static int ufs_symlink (struct inode * dir, struct dentry * dentry,
if (l > sb->s_blocksize)
goto out_notlocked;
dquot_initialize(dir);
lock_kernel();
inode = ufs_new_inode(dir, S_IFLNK | S_IRWXUGO);
err = PTR_ERR(inode);
@ -185,8 +178,6 @@ static int ufs_link (struct dentry * old_dentry, struct inode * dir,
return -EMLINK;
}
dquot_initialize(dir);
inode->i_ctime = CURRENT_TIME_SEC;
inode_inc_link_count(inode);
atomic_inc(&inode->i_count);
@ -204,8 +195,6 @@ static int ufs_mkdir(struct inode * dir, struct dentry * dentry, int mode)
if (dir->i_nlink >= UFS_LINK_MAX)
goto out;
dquot_initialize(dir);
lock_kernel();
inode_inc_link_count(dir);
@ -250,8 +239,6 @@ static int ufs_unlink(struct inode *dir, struct dentry *dentry)
struct page *page;
int err = -ENOENT;
dquot_initialize(dir);
de = ufs_find_entry(dir, &dentry->d_name, &page);
if (!de)
goto out;
@ -296,9 +283,6 @@ static int ufs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct ufs_dir_entry *old_de;
int err = -ENOENT;
dquot_initialize(old_dir);
dquot_initialize(new_dir);
old_de = ufs_find_entry(old_dir, &old_dentry->d_name, &old_page);
if (!old_de)
goto out;

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@ -77,7 +77,6 @@
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/quotaops.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/stat.h>
@ -1045,10 +1044,6 @@ magic_found:
*/
sb->s_op = &ufs_super_ops;
sb->s_export_op = &ufs_export_ops;
#ifdef CONFIG_QUOTA
sb->s_qcop = &dquot_quotactl_ops;
sb->dq_op = NULL; /* &dquot_operations */
#endif
sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic);
@ -1231,8 +1226,6 @@ static void ufs_put_super(struct super_block *sb)
UFSD("ENTER\n");
dquot_disable(sb, -1, DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED);
if (sb->s_dirt)
ufs_write_super(sb);
@ -1254,9 +1247,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
struct ufs_super_block_first * usb1;
struct ufs_super_block_third * usb3;
unsigned new_mount_opt, ufstype;
int enable_quota = 0;
unsigned flags;
int err;
lock_kernel();
lock_super(sb);
@ -1297,13 +1288,6 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
* fs was mouted as rw, remounting ro
*/
if (*mount_flags & MS_RDONLY) {
err = dquot_suspend(sb, -1);
if (err < 0) {
unlock_super(sb);
unlock_kernel();
return err;
}
ufs_put_super_internal(sb);
usb1->fs_time = cpu_to_fs32(sb, get_seconds());
if ((flags & UFS_ST_MASK) == UFS_ST_SUN
@ -1342,14 +1326,11 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
return -EPERM;
}
sb->s_flags &= ~MS_RDONLY;
enable_quota = 1;
#endif
}
UFS_SB(sb)->s_mount_opt = new_mount_opt;
unlock_super(sb);
unlock_kernel();
if (enable_quota)
dquot_resume(sb, -1);
return 0;
}
@ -1453,126 +1434,19 @@ static void destroy_inodecache(void)
kmem_cache_destroy(ufs_inode_cachep);
}
static void ufs_clear_inode(struct inode *inode)
{
dquot_drop(inode);
}
#ifdef CONFIG_QUOTA
static ssize_t ufs_quota_read(struct super_block *, int, char *,size_t, loff_t);
static ssize_t ufs_quota_write(struct super_block *, int, const char *, size_t, loff_t);
#endif
static const struct super_operations ufs_super_ops = {
.alloc_inode = ufs_alloc_inode,
.destroy_inode = ufs_destroy_inode,
.write_inode = ufs_write_inode,
.delete_inode = ufs_delete_inode,
.clear_inode = ufs_clear_inode,
.put_super = ufs_put_super,
.write_super = ufs_write_super,
.sync_fs = ufs_sync_fs,
.statfs = ufs_statfs,
.remount_fs = ufs_remount,
.show_options = ufs_show_options,
#ifdef CONFIG_QUOTA
.quota_read = ufs_quota_read,
.quota_write = ufs_quota_write,
#endif
};
#ifdef CONFIG_QUOTA
/* Read data from quotafile - avoid pagecache and such because we cannot afford
* acquiring the locks... As quota files are never truncated and quota code
* itself serializes the operations (and noone else should touch the files)
* we don't have to be afraid of races */
static ssize_t ufs_quota_read(struct super_block *sb, int type, char *data,
size_t len, loff_t off)
{
struct inode *inode = sb_dqopt(sb)->files[type];
sector_t blk = off >> sb->s_blocksize_bits;
int err = 0;
int offset = off & (sb->s_blocksize - 1);
int tocopy;
size_t toread;
struct buffer_head *bh;
loff_t i_size = i_size_read(inode);
if (off > i_size)
return 0;
if (off+len > i_size)
len = i_size-off;
toread = len;
while (toread > 0) {
tocopy = sb->s_blocksize - offset < toread ?
sb->s_blocksize - offset : toread;
bh = ufs_bread(inode, blk, 0, &err);
if (err)
return err;
if (!bh) /* A hole? */
memset(data, 0, tocopy);
else {
memcpy(data, bh->b_data+offset, tocopy);
brelse(bh);
}
offset = 0;
toread -= tocopy;
data += tocopy;
blk++;
}
return len;
}
/* Write to quotafile */
static ssize_t ufs_quota_write(struct super_block *sb, int type,
const char *data, size_t len, loff_t off)
{
struct inode *inode = sb_dqopt(sb)->files[type];
sector_t blk = off >> sb->s_blocksize_bits;
int err = 0;
int offset = off & (sb->s_blocksize - 1);
int tocopy;
size_t towrite = len;
struct buffer_head *bh;
mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA);
while (towrite > 0) {
tocopy = sb->s_blocksize - offset < towrite ?
sb->s_blocksize - offset : towrite;
bh = ufs_bread(inode, blk, 1, &err);
if (!bh)
goto out;
lock_buffer(bh);
memcpy(bh->b_data+offset, data, tocopy);
flush_dcache_page(bh->b_page);
set_buffer_uptodate(bh);
mark_buffer_dirty(bh);
unlock_buffer(bh);
brelse(bh);
offset = 0;
towrite -= tocopy;
data += tocopy;
blk++;
}
out:
if (len == towrite) {
mutex_unlock(&inode->i_mutex);
return err;
}
if (inode->i_size < off+len-towrite)
i_size_write(inode, off+len-towrite);
inode->i_version++;
inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
mark_inode_dirty(inode);
mutex_unlock(&inode->i_mutex);
return len - towrite;
}
#endif
static int ufs_get_sb(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data, struct vfsmount *mnt)
{

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@ -44,7 +44,6 @@
#include <linux/buffer_head.h>
#include <linux/blkdev.h>
#include <linux/sched.h>
#include <linux/quotaops.h>
#include "ufs_fs.h"
#include "ufs.h"
@ -518,15 +517,6 @@ int ufs_setattr(struct dentry *dentry, struct iattr *attr)
if (error)
return error;
if (is_quota_modification(inode, attr))
dquot_initialize(inode);
if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
(ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
error = dquot_transfer(inode, attr);
if (error)
return error;
}
if (ia_valid & ATTR_SIZE && attr->ia_size != inode->i_size) {
loff_t old_i_size = inode->i_size;