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| author | Tao Ma <tao.ma@oracle.com> | 2007-12-18 10:47:03 +0300 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2008-01-26 01:53:35 +0300 |
| commit | d659072f736837e56b6433d58e5315ad1d4d5ccf (patch) | |
| tree | 56882b7b36c6b60a8208f6ed5bee9904adc7b649 /fs/ocfs2/ioctl.c | |
| parent | 7f68fc28219be3b44ef4132f95c6506ff3e806b5 (diff) | |
| download | linux-d659072f736837e56b6433d58e5315ad1d4d5ccf.tar.xz | |
[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.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c index 67c2fb4bae91..b74b24ecf0e4 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; |