From 1e701a3292e25a6c4939cad9f24951dc6b6ad853 Mon Sep 17 00:00:00 2001
From: Chris Mason <chris.mason@oracle.com>
Date: Thu, 11 Mar 2010 09:42:04 -0500
Subject: Btrfs: add new defrag-range ioctl.
The btrfs defrag ioctl was limited to doing the entire file. This
commit adds a new interface that can defrag a specific range inside
the file.
It can also force compression on the file, allowing you to selectively
compress individual files after they were created, even when mount -o
compress isn't turned on.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
---
fs/btrfs/btrfs_inode.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'fs/btrfs/btrfs_inode.h')
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index 3f1f50d..7a4dee1 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -153,6 +153,11 @@ struct btrfs_inode {
unsigned ordered_data_close:1;
unsigned dummy_inode:1;
+ /*
+ * always compress this one file
+ */
+ unsigned force_compress:1;
+
struct inode vfs_inode;
};
--
cgit v1.1