1 files changed, 34 insertions, 58 deletions

diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c
index 32a8d10b579d..e8340bf09b10 100644
--- a/fs/ext2/ioctl.c
+++ b/fs/ext2/ioctl.c
@@ -16,75 +16,57 @@
 #include <linux/mount.h>
 #include <asm/current.h>
 #include <linux/uaccess.h>
+#include <linux/fileattr.h>
 
-
-long ext2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+int ext2_fileattr_get(struct dentry *dentry, struct fileattr *fa)
 {
-	struct inode *inode = file_inode(filp);
-	struct ext2_inode_info *ei = EXT2_I(inode);
-	unsigned int flags;
-	unsigned short rsv_window_size;
-	int ret;
+	struct ext2_inode_info *ei = EXT2_I(d_inode(dentry));
 
-	ext2_debug ("cmd = %u, arg = %lu\n", cmd, arg);
+	fileattr_fill_flags(fa, ei->i_flags & EXT2_FL_USER_VISIBLE);
 
-	switch (cmd) {
-	case EXT2_IOC_GETFLAGS:
-		flags = ei->i_flags & EXT2_FL_USER_VISIBLE;
-		return put_user(flags, (int __user *) arg);
-	case EXT2_IOC_SETFLAGS: {
-		unsigned int oldflags;
+	return 0;
+}
 
-		ret = mnt_want_write_file(filp);
-		if (ret)
-			return ret;
+int ext2_fileattr_set(struct user_namespace *mnt_userns,
+		      struct dentry *dentry, struct fileattr *fa)
+{
+	struct inode *inode = d_inode(dentry);
+	struct ext2_inode_info *ei = EXT2_I(inode);
 
-		if (!inode_owner_or_capable(inode)) {
-			ret = -EACCES;
-			goto setflags_out;
-		}
+	if (fileattr_has_fsx(fa))
+		return -EOPNOTSUPP;
 
-		if (get_user(flags, (int __user *) arg)) {
-			ret = -EFAULT;
-			goto setflags_out;
-		}
+	/* Is it quota file? Do not allow user to mess with it */
+	if (IS_NOQUOTA(inode))
+		return -EPERM;
 
-		flags = ext2_mask_flags(inode->i_mode, flags);
+	ei->i_flags = (ei->i_flags & ~EXT2_FL_USER_MODIFIABLE) |
+		(fa->flags & EXT2_FL_USER_MODIFIABLE);
 
-		inode_lock(inode);
-		/* Is it quota file? Do not allow user to mess with it */
-		if (IS_NOQUOTA(inode)) {
-			inode_unlock(inode);
-			ret = -EPERM;
-			goto setflags_out;
-		}
-		oldflags = ei->i_flags;
+	ext2_set_inode_flags(inode);
+	inode->i_ctime = current_time(inode);
+	mark_inode_dirty(inode);
 
-		ret = vfs_ioc_setflags_prepare(inode, oldflags, flags);
-		if (ret) {
-			inode_unlock(inode);
-			goto setflags_out;
-		}
+	return 0;
+}
 
-		flags = flags & EXT2_FL_USER_MODIFIABLE;
-		flags |= oldflags & ~EXT2_FL_USER_MODIFIABLE;
-		ei->i_flags = flags;
 
-		ext2_set_inode_flags(inode);
-		inode->i_ctime = current_time(inode);
-		inode_unlock(inode);
+long ext2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+	struct inode *inode = file_inode(filp);
+	struct ext2_inode_info *ei = EXT2_I(inode);
+	unsigned short rsv_window_size;
+	int ret;
 
-		mark_inode_dirty(inode);
-setflags_out:
-		mnt_drop_write_file(filp);
-		return ret;
-	}
+	ext2_debug ("cmd = %u, arg = %lu\n", cmd, arg);
+
+	switch (cmd) {
 	case EXT2_IOC_GETVERSION:
 		return put_user(inode->i_generation, (int __user *) arg);
 	case EXT2_IOC_SETVERSION: {
 		__u32 generation;
 
-		if (!inode_owner_or_capable(inode))
+		if (!inode_owner_or_capable(&init_user_ns, inode))
 			return -EPERM;
 		ret = mnt_want_write_file(filp);
 		if (ret)
@@ -117,7 +99,7 @@ setversion_out:
 		if (!test_opt(inode->i_sb, RESERVATION) ||!S_ISREG(inode->i_mode))
 			return -ENOTTY;
 
-		if (!inode_owner_or_capable(inode))
+		if (!inode_owner_or_capable(&init_user_ns, inode))
 			return -EACCES;
 
 		if (get_user(rsv_window_size, (int __user *)arg))
@@ -163,12 +145,6 @@ long ext2_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	/* These are just misnamed, they actually get/put from/to user an int */
 	switch (cmd) {
-	case EXT2_IOC32_GETFLAGS:
-		cmd = EXT2_IOC_GETFLAGS;
-		break;
-	case EXT2_IOC32_SETFLAGS:
-		cmd = EXT2_IOC_SETFLAGS;
-		break;
 	case EXT2_IOC32_GETVERSION:
 		cmd = EXT2_IOC_GETVERSION;
 		break;