dnl # dnl # 2.6.36 API compatibility- Added usleep_range timer. dnl # dnl # usleep_range is a finer precision implementation of msleep dnl # designed to be a drop-in replacement for udelay where a precise dnl # sleep / busy-wait is unnecessary. dnl # AC_DEFUN([ZFS_AC_KERNEL_SRC_USLEEP_RANGE], [ ZFS_LINUX_TEST_SRC([usleep_range], [ #include <linux/delay.h> ],[ usleep_range(0, 0); ]) ]) AC_DEFUN([ZFS_AC_KERNEL_USLEEP_RANGE], [ AC_MSG_CHECKING([whether usleep_range() is available]) ZFS_LINUX_TEST_RESULT([usleep_range], [ AC_MSG_RESULT(yes) ],[ ZFS_LINUX_TEST_ERROR([usleep_range()]) ]) ])