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authorTao Ma <tao.ma@oracle.com>2007-12-18 15:47:03 +0800
committerMark Fasheh <mark.fasheh@oracle.com>2008-01-25 14:53:35 -0800
commitd659072f736837e56b6433d58e5315ad1d4d5ccf (patch)
tree56882b7b36c6b60a8208f6ed5bee9904adc7b649 /fs/ocfs2/ioctl.c
parent7f68fc28219be3b44ef4132f95c6506ff3e806b5 (diff)
[PATCH 1/2] ocfs2: Add group extend for online resize
This patch adds the ability for a userspace program to request an extend of last cluster group on an Ocfs2 file system. The request is made via ioctl, OCFS2_IOC_GROUP_EXTEND. This is derived from EXT3_IOC_GROUP_EXTEND, but is obviously Ocfs2 specific. tunefs.ocfs2 would call this for an online-resize operation if the last cluster group isn't full. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/ioctl.c')
-rw-r--r--fs/ocfs2/ioctl.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 67c2fb4bae9..b74b24ecf0e 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -20,6 +20,7 @@
#include "ocfs2_fs.h"
#include "ioctl.h"
+#include "resize.h"
#include <linux/ext2_fs.h>
@@ -115,6 +116,7 @@ int ocfs2_ioctl(struct inode * inode, struct file * filp,
unsigned int cmd, unsigned long arg)
{
unsigned int flags;
+ int new_clusters;
int status;
struct ocfs2_space_resv sr;
@@ -140,6 +142,11 @@ int ocfs2_ioctl(struct inode * inode, struct file * filp,
return -EFAULT;
return ocfs2_change_file_space(filp, cmd, &sr);
+ case OCFS2_IOC_GROUP_EXTEND:
+ if (get_user(new_clusters, (int __user *)arg))
+ return -EFAULT;
+
+ return ocfs2_group_extend(inode, new_clusters);
default:
return -ENOTTY;
}
@@ -162,6 +169,7 @@ long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg)
case OCFS2_IOC_RESVSP64:
case OCFS2_IOC_UNRESVSP:
case OCFS2_IOC_UNRESVSP64:
+ case OCFS2_IOC_GROUP_EXTEND:
break;
default:
return -ENOIOCTLCMD;