#include <linux/ext3_fs.h>
#include <linux/ext3_jbd.h>
#include <linux/time.h>
+#include <linux/vserver/xid.h>
#include <asm/uaccess.h>
{
struct ext3_inode_info *ei = EXT3_I(inode);
unsigned int flags;
+ unsigned short rsv_window_size;
ext3_debug ("cmd = %u, arg = %lu\n", cmd, arg);
remove_wait_queue(&EXT3_SB(sb)->ro_wait_queue, &wait);
return ret;
}
+#endif
+ case EXT3_IOC_GETRSVSZ:
+ if (test_opt(inode->i_sb, RESERVATION) && S_ISREG(inode->i_mode)) {
+ rsv_window_size = atomic_read(&ei->i_rsv_window.rsv_goal_size);
+ return put_user(rsv_window_size, (int *)arg);
+ }
+ return -ENOTTY;
+ case EXT3_IOC_SETRSVSZ:
+ if (!test_opt(inode->i_sb, RESERVATION) ||!S_ISREG(inode->i_mode))
+ return -ENOTTY;
+
+ if (IS_RDONLY(inode))
+ return -EROFS;
+
+ if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ return -EACCES;
+
+ if (get_user(rsv_window_size, (int *)arg))
+ return -EFAULT;
+
+ if (rsv_window_size > EXT3_MAX_RESERVE_BLOCKS)
+ rsv_window_size = EXT3_MAX_RESERVE_BLOCKS;
+ atomic_set(&ei->i_rsv_window.rsv_goal_size, rsv_window_size);
+ return 0;
+ case EXT3_IOC_GROUP_EXTEND: {
+ unsigned long n_blocks_count;
+ struct super_block *sb = inode->i_sb;
+ int err;
+
+ if (!capable(CAP_SYS_RESOURCE))
+ return -EACCES;
+
+ if (sb->s_flags & MS_RDONLY)
+ return -EROFS;
+
+ if (get_user(n_blocks_count, (__u32 *)arg))
+ return -EFAULT;
+
+ err = ext3_group_extend(sb, EXT3_SB(sb)->s_es, n_blocks_count);
+ journal_lock_updates(EXT3_SB(sb)->s_journal);
+ journal_flush(EXT3_SB(sb)->s_journal);
+ journal_unlock_updates(EXT3_SB(sb)->s_journal);
+
+ return err;
+ }
+ case EXT3_IOC_GROUP_ADD: {
+ struct ext3_new_group_data input;
+ struct super_block *sb = inode->i_sb;
+ int err;
+
+ if (!capable(CAP_SYS_RESOURCE))
+ return -EACCES;
+
+ if (inode->i_sb->s_flags & MS_RDONLY)
+ return -EROFS;
+
+ if (copy_from_user(&input, (struct ext3_new_group_input *)arg,
+ sizeof(input)))
+ return -EFAULT;
+
+ err = ext3_group_add(sb, &input);
+ journal_lock_updates(EXT3_SB(sb)->s_journal);
+ journal_flush(EXT3_SB(sb)->s_journal);
+ journal_unlock_updates(EXT3_SB(sb)->s_journal);
+
+ return err;
+ }
+
+
+#if defined(CONFIG_VSERVER_LEGACY) && !defined(CONFIG_INOXID_NONE)
+ case EXT3_IOC_SETXID: {
+ handle_t *handle;
+ struct ext3_iloc iloc;
+ int xid;
+ int err;
+
+ /* fixme: if stealth, return -ENOTTY */
+ if (!capable(CAP_CONTEXT))
+ return -EPERM;
+ if (IS_RDONLY(inode))
+ return -EROFS;
+ if (!(inode->i_sb->s_flags & MS_TAGXID))
+ return -ENOSYS;
+ if (get_user(xid, (int *) arg))
+ return -EFAULT;
+
+ handle = ext3_journal_start(inode, 1);
+ if (IS_ERR(handle))
+ return PTR_ERR(handle);
+ err = ext3_reserve_inode_write(handle, inode, &iloc);
+ if (err)
+ return err;
+
+ inode->i_xid = (xid & 0xFFFF);
+ inode->i_ctime = CURRENT_TIME;
+
+ err = ext3_mark_iloc_dirty(handle, inode, &iloc);
+ ext3_journal_stop(handle);
+ return err;
+ }
#endif
default:
return -ENOTTY;