freebsd-dev/config/kernel-rq-is_sync.m4

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dnl #
dnl # 2.6.x API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_RQ_IS_SYNC], [
AC_MSG_CHECKING([whether rq_is_sync() is available])
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
struct request *req = NULL;
(void) rq_is_sync(req);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_RQ_IS_SYNC, 1,
[rq_is_sync() is available])
],[
AC_MSG_RESULT(no)
])
])