commit 8a4b83cc8bd75fca29ac68615896d9e92820e7c2
author Chris Mason <chris.mason@oracle.com> Mon Mar 24 15:02:07 2008 -0400
committer Chris Mason <chris.mason@oracle.com> Thu Sep 25 11:04:01 2008 -0400
tree b7f99cf53c322665b78cca10742cc734ad070729
parent 239b14b32dc39232ebf9cce29ff77c4c564355fd

Btrfs: Add support for device scanning and detection ioctls

Signed-off-by: Chris Mason <chris.mason@oracle.com>

fs/btrfs/ioctl.h

diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h
index 8c62906..4551e82 100644
--- a/fs/btrfs/ioctl.h
+++ b/fs/btrfs/ioctl.h
@@ -22,8 +22,10 @@
 
 #define BTRFS_IOCTL_MAGIC 0x94
 #define BTRFS_VOL_NAME_MAX 255
+#define BTRFS_PATH_NAME_MAX 4095
+
 struct btrfs_ioctl_vol_args {
-	char name[BTRFS_VOL_NAME_MAX + 1];
+	char name[BTRFS_PATH_NAME_MAX + 1];
 };
 
 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
@@ -32,4 +34,6 @@
 				   struct btrfs_ioctl_vol_args)
 #define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
 				   struct btrfs_ioctl_vol_args)
+#define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
+				   struct btrfs_ioctl_vol_args)
 #endif