- AC_DEFINE(HAVE_BIO_RW_SYNCIO, 1,
- [BIO_RW_SYNCIO is defined])
+ AC_DEFINE(HAVE_BIO_RW_SYNCIO, 1, [BIO_RW_SYNCIO is defined])
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+])
+
+AC_DEFUN([ZFS_AC_KERNEL_REQ_SYNC], [
+ AC_MSG_CHECKING([whether REQ_SYNC is defined])
+ ZFS_LINUX_TRY_COMPILE([
+ #include <linux/bio.h>
+ ],[
+ int flags __attribute__ ((unused));
+ flags = REQ_SYNC;
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_REQ_SYNC, 1, [REQ_SYNC is defined])