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authorTristan Ye <tristan.ye@oracle.com>2011-05-25 14:23:43 +0800
committerTristan Ye <tristan.ye@oracle.com>2011-05-25 15:17:12 +0800
commit53069d4e76954e2e63c1b3c501051c6fbcf7298c (patch)
tree6b906eb22fef78636c7d4db7120370d7715f5aef /fs/ocfs2/ioctl.c
parentee16cc037e255801892481a2d0b7c1fff2adf1aa (diff)
downloadlinux-53069d4e76954e2e63c1b3c501051c6fbcf7298c.tar.bz2
Ocfs2/move_extents: move/defrag extents within a certain range.
the basic logic of moving extents for a file is pretty like punching-hole sequence, walk the extents within the range as user specified, calculating an appropriate len to defrag/move, then let ocfs2_defrag/move_extent() to do the actual moving. This func ends up setting 'OCFS2_MOVE_EXT_FL_COMPLETE' to userpace if operation gets done successfully. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
Diffstat (limited to 'fs/ocfs2/ioctl.c')
-rw-r--r--fs/ocfs2/ioctl.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index fd248ed53df7..59100598b0cb 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -26,6 +26,7 @@
#include "dir.h"
#include "buffer_head_io.h"
#include "suballoc.h"
+#include "move_extents.h"
#include <linux/ext2_fs.h>
@@ -951,6 +952,8 @@ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return -EFAULT;
return ocfs2_info_handle(inode, &info, 0);
+ case OCFS2_IOC_MOVE_EXT:
+ return ocfs2_ioctl_move_extents(filp, (void __user *)arg);
default:
return -ENOTTY;
}
@@ -993,6 +996,8 @@ long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg)
return -EFAULT;
return ocfs2_info_handle(inode, &info, 1);
+ case OCFS2_IOC_MOVE_EXT:
+ break;
default:
return -ENOIOCTLCMD;
}