Btrfs: fix FS_IOC_SETFLAGS ioctl

Steps to reproduce the bug: - Call FS_IOC_SETLFAGS ioctl with flags=FS_COMPR_FL - Call FS_IOC_SETFLAGS ioctl with flags=0 - Call FS_IOC_GETFLAGS ioctl, and you'll see FS_COMPR_FL is still set! Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
mariux64 · May 14, 2011 · ebcb904 · ebcb904
1 parent d0092bd
commit ebcb904
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
@@ -238,6 +238,8 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
 	} else if (flags & FS_COMPR_FL) {
 		ip->flags |= BTRFS_INODE_COMPRESS;
 		ip->flags &= ~BTRFS_INODE_NOCOMPRESS;
+	} else {
+		ip->flags &= ~(BTRFS_INODE_COMPRESS | BTRFS_INODE_NOCOMPRESS);
 	}
 
 	trans = btrfs_join_transaction(root, 1);