dnl # dnl # 2.6.x API change dnl # AC_DEFUN([ZFS_AC_KERNEL_GET_DISK_RO], [ AC_MSG_CHECKING([whether get_disk_ro() is available]) tmp_flags="$EXTRA_KCFLAGS" EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}" ZFS_LINUX_TRY_COMPILE([ #include ],[ struct gendisk *disk = NULL; (void) get_disk_ro(disk); ],[ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_GET_DISK_RO, 1, [blk_disk_ro() is available]) ],[ AC_MSG_RESULT(no) ]) EXTRA_KCFLAGS="$tmp_flags" ])