Joe, Linus,
This patch fixes some device-mapper ioctl packet definitions in dm-ioctl.h
in 2.5.51.
Notes:
- The "dev" fields in "struct dm_ioctl" and "struct dm_target_deps" should
be fixed-size to avoid requiring translation code on architectures such as
ppc64 and sparc64 with 32-bit user-space and 64-bit kernel-space.
- The "length" field in "struct dm_target_spec" should be should be 64-bit
to allow single targets within a device to be greater than 2 TB.
- The "status" field in "struct dm_target_spec" should be moved to ensure
proper field alignment on 64-bit architectures.
- The version of the ioctl interface changes from 1.0.6 to 2.0.0, because
the new structure definitions are not backwards compatible with the previous
definitions.
-- Kevin Corry corryk@us.ibm.com http://evms.sourceforge.net/--- linux-2.5.51a/include/linux/dm-ioctl.h Tue Dec 10 10:59:55 2002 +++ linux-2.5.51b/include/linux/dm-ioctl.h Wed Nov 20 14:44:06 2002 @@ -50,7 +50,7 @@ uint32_t open_count; /* out */ uint32_t flags; /* in/out */ - __kernel_dev_t dev; /* in/out */ + uint32_t dev; /* in/out */ char name[DM_NAME_LEN]; /* device name */ char uuid[DM_UUID_LEN]; /* unique identifier for @@ -62,9 +62,9 @@ * dm_ioctl. */ struct dm_target_spec { - int32_t status; /* used when reading from kernel only */ uint64_t sector_start; - uint32_t length; + uint64_t length; + int32_t status; /* used when reading from kernel only */ /* * Offset in bytes (from the start of this struct) to @@ -87,7 +87,7 @@ struct dm_target_deps { uint32_t count; - __kernel_dev_t dev[0]; /* out */ + uint32_t dev[0]; /* out */ }; /* @@ -129,10 +129,10 @@ #define DM_TARGET_STATUS _IOWR(DM_IOCTL, DM_TARGET_STATUS_CMD, struct dm_ioctl) #define DM_TARGET_WAIT _IOWR(DM_IOCTL, DM_TARGET_WAIT_CMD, struct dm_ioctl) -#define DM_VERSION_MAJOR 1 +#define DM_VERSION_MAJOR 2 #define DM_VERSION_MINOR 0 -#define DM_VERSION_PATCHLEVEL 6 -#define DM_VERSION_EXTRA "-ioctl (2002-10-15)" +#define DM_VERSION_PATCHLEVEL 0 +#define DM_VERSION_EXTRA "-ioctl (2002-12-10)" /* Status bits */ #define DM_READONLY_FLAG 0x00000001 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sun Dec 15 2002 - 22:00:19 EST