From: Kevin Corry <kevcorry@us.ibm.com>
Fix 64/32 bit ioctl problems.
---
25-akpm/include/linux/compat_ioctl.h | 13 +++++++++++++
25-akpm/include/linux/dm-ioctl.h | 28 ++++++++++++++++++++++++++++
2 files changed, 41 insertions(+)
diff -puN include/linux/compat_ioctl.h~dm-fix-64-32-bit-ioctl-problems include/linux/compat_ioctl.h
--- 25/include/linux/compat_ioctl.h~dm-fix-64-32-bit-ioctl-problems Mon Apr 12 13:48:45 2004
+++ 25-akpm/include/linux/compat_ioctl.h Mon Apr 12 13:48:45 2004
@@ -123,6 +123,19 @@ COMPATIBLE_IOCTL(STOP_ARRAY)
COMPATIBLE_IOCTL(STOP_ARRAY_RO)
COMPATIBLE_IOCTL(RESTART_ARRAY_RW)
/* DM */
+COMPATIBLE_IOCTL(DM_VERSION_32)
+COMPATIBLE_IOCTL(DM_LIST_DEVICES_32)
+COMPATIBLE_IOCTL(DM_DEV_CREATE_32)
+COMPATIBLE_IOCTL(DM_DEV_REMOVE_32)
+COMPATIBLE_IOCTL(DM_DEV_RENAME_32)
+COMPATIBLE_IOCTL(DM_DEV_SUSPEND_32)
+COMPATIBLE_IOCTL(DM_DEV_STATUS_32)
+COMPATIBLE_IOCTL(DM_DEV_WAIT_32)
+COMPATIBLE_IOCTL(DM_TABLE_LOAD_32)
+COMPATIBLE_IOCTL(DM_TABLE_CLEAR_32)
+COMPATIBLE_IOCTL(DM_TABLE_DEPS_32)
+COMPATIBLE_IOCTL(DM_TABLE_STATUS_32)
+COMPATIBLE_IOCTL(DM_LIST_VERSIONS_32)
COMPATIBLE_IOCTL(DM_VERSION)
COMPATIBLE_IOCTL(DM_LIST_DEVICES)
COMPATIBLE_IOCTL(DM_DEV_CREATE)
diff -puN include/linux/dm-ioctl.h~dm-fix-64-32-bit-ioctl-problems include/linux/dm-ioctl.h
--- 25/include/linux/dm-ioctl.h~dm-fix-64-32-bit-ioctl-problems Mon Apr 12 13:48:45 2004
+++ 25-akpm/include/linux/dm-ioctl.h Mon Apr 12 13:48:45 2004
@@ -200,6 +200,34 @@ enum {
DM_LIST_VERSIONS_CMD,
};
+/*
+ * The dm_ioctl struct passed into the ioctl is just the header
+ * on a larger chunk of memory. On x86-64 and other
+ * architectures the dm-ioctl struct will be padded to an 8 byte
+ * boundary so the size will be different, which would change the
+ * ioctl code - yes I really messed up. This hack forces these
+ * architectures to have the correct ioctl code.
+ */
+#ifdef CONFIG_COMPAT
+typedef char ioctl_struct[308];
+#define DM_VERSION_32 _IOWR(DM_IOCTL, DM_VERSION_CMD, ioctl_struct)
+#define DM_REMOVE_ALL_32 _IOWR(DM_IOCTL, DM_REMOVE_ALL_CMD, ioctl_struct)
+#define DM_LIST_DEVICES_32 _IOWR(DM_IOCTL, DM_LIST_DEVICES_CMD, ioctl_struct)
+
+#define DM_DEV_CREATE_32 _IOWR(DM_IOCTL, DM_DEV_CREATE_CMD, ioctl_struct)
+#define DM_DEV_REMOVE_32 _IOWR(DM_IOCTL, DM_DEV_REMOVE_CMD, ioctl_struct)
+#define DM_DEV_RENAME_32 _IOWR(DM_IOCTL, DM_DEV_RENAME_CMD, ioctl_struct)
+#define DM_DEV_SUSPEND_32 _IOWR(DM_IOCTL, DM_DEV_SUSPEND_CMD, ioctl_struct)
+#define DM_DEV_STATUS_32 _IOWR(DM_IOCTL, DM_DEV_STATUS_CMD, ioctl_struct)
+#define DM_DEV_WAIT_32 _IOWR(DM_IOCTL, DM_DEV_WAIT_CMD, ioctl_struct)
+
+#define DM_TABLE_LOAD_32 _IOWR(DM_IOCTL, DM_TABLE_LOAD_CMD, ioctl_struct)
+#define DM_TABLE_CLEAR_32 _IOWR(DM_IOCTL, DM_TABLE_CLEAR_CMD, ioctl_struct)
+#define DM_TABLE_DEPS_32 _IOWR(DM_IOCTL, DM_TABLE_DEPS_CMD, ioctl_struct)
+#define DM_TABLE_STATUS_32 _IOWR(DM_IOCTL, DM_TABLE_STATUS_CMD, ioctl_struct)
+#define DM_LIST_VERSIONS_32 _IOWR(DM_IOCTL, DM_LIST_VERSIONS_CMD, ioctl_struct)
+#endif
+
#define DM_IOCTL 0xfd
#define DM_VERSION _IOWR(DM_IOCTL, DM_VERSION_CMD, struct dm_ioctl)
_