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| author | Tristan Ye <tristan.ye@oracle.com> | 2011-05-25 14:23:43 +0800 |
|---|---|---|
| committer | Tristan Ye <tristan.ye@oracle.com> | 2011-05-25 15:17:12 +0800 |
| commit | 53069d4e76954e2e63c1b3c501051c6fbcf7298c (patch) | |
| tree | 6b906eb22fef78636c7d4db7120370d7715f5aef /fs/ocfs2/ioctl.c | |
| parent | ee16cc037e255801892481a2d0b7c1fff2adf1aa (diff) | |
| download | linux-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.c | 5 |
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; } |