Make it even harder to use uninitialized `libzfs_handle' (and
make the interface a bit simpler).
* include/grub/util/misc.h (grub_util_init_libzfs)
(libzfs_handle): Remove.
(grub_get_libzfs_handle): New prototype.
* util/misc.c [HAVE_LIBZFS] (libzfs_handle): Add `static'
attribute.
(grub_util_init_libzfs): Remove.
(grub_get_libzfs_handle): New function.
* kern/emu/getroot.c (find_root_device_from_libzfs): Use
grub_get_libzfs_handle() to obtain a libzfs handle instead of
accessing `libzfs_handle' directly.
* include/grub/emu/misc.h (grub_find_mount_point_from_dir)
(grub_find_zpool_from_mount_point): New function prototypes.
* kern/emu/getroot.c [HAVE_GETFSSTAT]: Move `<sys/mount.h>' to ...
* kern/emu/misc.c [HAVE_GETFSSTAT]: ... here.
* kern/emu/getroot.c (find_mount_point_from_dir): Move to ...
* kern/emu/misc.c (grub_find_mount_point_from_dir): ... this. Remove
`static' attribute.
* kern/emu/getroot.c (find_root_device_from_libzfs): Split code for
finding zpool from mount point into ...
* kern/emu/misc.c (grub_find_zpool_from_mount_point): ... this.
* kern/emu/misc.c (grub_make_system_path_relative_to_its_root): When
requested path is part of a ZFS pool, use
grub_find_zpool_from_mount_point() to detect its filesystem name,
and generate a path with `/fsname@path' syntax.
Prevent accidental use of uninitialized libzfs_handle.
* util/grub-probe.c (main): Move grub_util_init_libzfs() call to ...
* kern/emu/getroot.c (find_root_device_from_libzfs): ... here.
* util/misc.c (grub_util_init_libzfs): Make this function idempotent.
Enable `grub-probe -t device' resolution on ZFS.
* configure.ac: Check for getfsstat(), libzfs and libnvpair.
* include/grub/util/libnvpair.h: New file.
* include/grub/util/libzfs.h: New file.
* kern/emu/getroot.c: Include `<assert.h>' and `<error.h>'.
[HAVE_LIBZFS && HAVE_LIBNVPAIR]: Include `<grub/util/libzfs.h>' and
`<grub/util/libnvpair.h>'.
[HAVE_GETFSSTAT]: Include `<sys/mount.h>'.
(find_mount_point_from_dir): New static function.
[HAVE_LIBZFS && HAVE_LIBNVPAIR] (find_root_device_from_libzfs): New
function.
[HAVE_LIBZFS && HAVE_LIBNVPAIR] (grub_guess_root_device): Use
find_root_device_from_libzfs() before ressorting to find_root_device().
* include/grub/util/misc.h (grub_util_init_libzfs): New function
prototype.
* util/misc.c: Include `<grub/util/libzfs.h>'.
(grub_util_init_libzfs): New function.
[HAVE_LIBZFS] (libzfs_handle): New global variable.
[HAVE_LIBZFS] (fini_libzfs): New static function.
(grub_util_init_libzfs): New function.
* util/grub-probe.c (main): Call grub_util_init_libzfs().
removing the homehost if present.
* kern/emu/getroot.c (get_mdadm_name) [__linux__]: New function.
(grub_util_get_grub_dev): Use md/%s to name mdadm 1.x devices,
removing the homehost if present.
(grub_util_get_grub_dev) [__linux__]: Get the array name from mdadm
if possible.
* util/i386/pc/grub-setup.c (main): Handle md/* devices.
* kern/emu/getroot.c (find_root_device_from_mountinfo): New
function.
(grub_guess_root_device): Call find_root_device_from_mountinfo
before looking in /dev.
as with real block devices. The Linux world seems to be (at best)
in transition here, and GRUB shouldn't get caught in the middle.
* kern/emu/getroot.c (find_root_device): Follow symbolic links under
/dev/mapper.
* kern/emu/getroot.c (find_root_device_from_mountinfo): New
function.
(grub_guess_root_device): Call find_root_device_from_mountinfo
before looking in /dev.
