X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=fs%2Freiserfs%2Fioctl.c;h=0e225be224b3b534b703968c828647e818d3e6c0;hb=d46bc780027c5439db9f72d42c0732775b53925a;hp=ec59e074416accafa7347afba4b8f1273b64e1a9;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/fs/reiserfs/ioctl.c b/fs/reiserfs/ioctl.c
index ec59e0744..0e225be22 100644
--- a/fs/reiserfs/ioctl.c
+++ b/fs/reiserfs/ioctl.c
@@ -20,7 +20,7 @@
 int reiserfs_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
 		unsigned long arg)
 {
-	unsigned int flags;
+	unsigned int flags, oldflags;
 
 	switch (cmd) {
 	    case REISERFS_IOC_UNPACK:
@@ -36,6 +36,7 @@ int reiserfs_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
 	case REISERFS_IOC_GETFLAGS:
 		flags = REISERFS_I(inode) -> i_attrs;
 		i_attrs_to_sd_attrs( inode, ( __u16 * ) &flags );
+		flags &= REISERFS_FL_USER_VISIBLE;
 		return put_user(flags, (int *) arg);
 	case REISERFS_IOC_SETFLAGS: {
 		if (IS_RDONLY(inode))
@@ -47,8 +48,10 @@ int reiserfs_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
 		if (get_user(flags, (int *) arg))
 			return -EFAULT;
 
-		if ( ( ( flags ^ REISERFS_I(inode) -> i_attrs) & ( REISERFS_IMMUTABLE_FL | REISERFS_APPEND_FL)) &&
-		     !capable( CAP_LINUX_IMMUTABLE ) )
+		oldflags = REISERFS_I(inode) -> i_attrs;
+		if ( (oldflags & REISERFS_IMMUTABLE_FL) || ( ( (flags ^ oldflags) &
+		   (REISERFS_IMMUTABLE_FL | REISERFS_IUNLINK_FL | REISERFS_APPEND_FL)) &&
+		     !capable( CAP_LINUX_IMMUTABLE ) ) )
 			return -EPERM;
 			
 		if( ( flags & REISERFS_NOTAIL_FL ) &&
@@ -59,6 +62,9 @@ int reiserfs_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
 				if( result )
 					return result;
 		}
+		
+		flags = flags & REISERFS_FL_USER_MODIFYABLE;
+		flags |= oldflags & ~REISERFS_FL_USER_MODIFYABLE;
 		sd_attrs_to_i_attrs( flags, inode );
 		REISERFS_I(inode) -> i_attrs = flags;
 		inode->i_ctime = CURRENT_TIME;