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authorJan Kara <jack@suse.cz>2010-05-20 16:00:36 +0200
committerJan Kara <jack@suse.cz>2010-05-24 14:10:19 +0200
commit8f45c33decf62e1aaaa9411aae8fef6a38f95845 (patch)
tree35304753fb416a4f82ec93609b8664d12d2a8d50 /fs/ufs/super.c
parent36350462814739e1f38cba59a6900ebadb08d3bb (diff)
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>
Diffstat (limited to 'fs/ufs/super.c')
-rw-r--r--fs/ufs/super.c126
1 files changed, 0 insertions, 126 deletions
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 2b08a8dd8ec0..3c9bbf23c2ff 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -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)
{