2 * linux/fs/ocfs2/ioctl.c
4 * Copyright (C) 2006 Herbert Poetzl
5 * adapted from Remy Card's ext2/ioctl.c
9 #include <linux/mount.h>
11 #define MLOG_MASK_PREFIX ML_INODE
12 #include <cluster/masklog.h>
24 #include <linux/ext2_fs.h>
26 static int ocfs2_get_inode_attr(struct inode *inode, unsigned *flags)
30 status = ocfs2_meta_lock(inode, NULL, 0);
35 ocfs2_get_inode_flags(OCFS2_I(inode));
36 *flags = OCFS2_I(inode)->ip_attr;
37 ocfs2_meta_unlock(inode, 0);
43 static int ocfs2_set_inode_attr(struct inode *inode, unsigned flags,
46 struct ocfs2_inode_info *ocfs2_inode = OCFS2_I(inode);
47 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
48 handle_t *handle = NULL;
49 struct buffer_head *bh = NULL;
53 mutex_lock(&inode->i_mutex);
55 status = ocfs2_meta_lock(inode, &bh, 1);
66 if (!is_owner_or_cap(inode))
69 if (!S_ISDIR(inode->i_mode))
70 flags &= ~OCFS2_DIRSYNC_FL;
72 handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
74 status = PTR_ERR(handle);
79 oldflags = ocfs2_inode->ip_attr;
81 flags |= oldflags & ~mask;
84 * The IMMUTABLE and APPEND_ONLY flags can only be changed by
85 * the relevant capability.
88 if ((oldflags & OCFS2_IMMUTABLE_FL) || ((flags ^ oldflags) &
89 (OCFS2_APPEND_FL | OCFS2_IMMUTABLE_FL))) {
90 if (!capable(CAP_LINUX_IMMUTABLE))
94 ocfs2_inode->ip_attr = flags;
95 ocfs2_set_inode_flags(inode);
97 status = ocfs2_mark_inode_dirty(handle, inode, bh);
101 ocfs2_commit_trans(osb, handle);
103 ocfs2_meta_unlock(inode, 1);
105 mutex_unlock(&inode->i_mutex);
114 int ocfs2_ioctl(struct inode * inode, struct file * filp,
115 unsigned int cmd, unsigned long arg)
119 struct ocfs2_space_resv sr;
122 case OCFS2_IOC_GETFLAGS:
123 status = ocfs2_get_inode_attr(inode, &flags);
127 flags &= OCFS2_FL_VISIBLE;
128 return put_user(flags, (int __user *) arg);
129 case OCFS2_IOC_SETFLAGS:
130 if (get_user(flags, (int __user *) arg))
133 return ocfs2_set_inode_attr(inode, flags,
134 OCFS2_FL_MODIFIABLE);
135 case OCFS2_IOC_RESVSP:
136 case OCFS2_IOC_RESVSP64:
137 case OCFS2_IOC_UNRESVSP:
138 case OCFS2_IOC_UNRESVSP64:
139 if (copy_from_user(&sr, (int __user *) arg, sizeof(sr)))
142 return ocfs2_change_file_space(filp, cmd, &sr);
149 long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg)
151 struct inode *inode = file->f_path.dentry->d_inode;
155 case OCFS2_IOC32_GETFLAGS:
156 cmd = OCFS2_IOC_GETFLAGS;
158 case OCFS2_IOC32_SETFLAGS:
159 cmd = OCFS2_IOC_SETFLAGS;
161 case OCFS2_IOC_RESVSP:
162 case OCFS2_IOC_RESVSP64:
163 case OCFS2_IOC_UNRESVSP:
164 case OCFS2_IOC_UNRESVSP64:
171 ret = ocfs2_ioctl(inode, file, cmd, arg);