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| author | Paul Mundt <lethal@linux-sh.org> | 2010-02-15 14:49:37 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-02-15 14:49:37 +0900 |
| commit | 028c5d5d596651bce13d06737eb3707a7e99a30c (patch) | |
| tree | e4e429858a19635ad2b5aa563bf1b4e39396d4e2 /fs/ocfs2/ioctl.c | |
| parent | 19f6b8b44e3f633d5d7d1ed68848b1eb89a1e800 (diff) | |
| parent | 4b505db9c4c72dbd2a8e66b8d681640101325af6 (diff) | |
Merge branch 'sh/stable-updates'
Diffstat (limited to 'fs/ocfs2/ioctl.c')
| -rw-r--r-- | fs/ocfs2/ioctl.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c index 31fbb061951..7d9d9c132ce 100644 --- a/fs/ocfs2/ioctl.c +++ b/fs/ocfs2/ioctl.c @@ -7,6 +7,7 @@ #include <linux/fs.h> #include <linux/mount.h> +#include <linux/compat.h> #define MLOG_MASK_PREFIX ML_INODE #include <cluster/masklog.h> @@ -181,6 +182,10 @@ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) #ifdef CONFIG_COMPAT long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg) { + bool preserve; + struct reflink_arguments args; + struct inode *inode = file->f_path.dentry->d_inode; + switch (cmd) { case OCFS2_IOC32_GETFLAGS: cmd = OCFS2_IOC_GETFLAGS; @@ -195,8 +200,15 @@ long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg) case OCFS2_IOC_GROUP_EXTEND: case OCFS2_IOC_GROUP_ADD: case OCFS2_IOC_GROUP_ADD64: - case OCFS2_IOC_REFLINK: break; + case OCFS2_IOC_REFLINK: + if (copy_from_user(&args, (struct reflink_arguments *)arg, + sizeof(args))) + return -EFAULT; + preserve = (args.preserve != 0); + + return ocfs2_reflink_ioctl(inode, compat_ptr(args.old_path), + compat_ptr(args.new_path), preserve); default: return -ENOIOCTLCMD; } |