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dnl #
dnl # 2.6.34 API change
dnl # current->bio_tail and current->bio_list were struct bio pointers prior to
dnl # Linux 2.6.34. They were refactored into a struct bio_list pointer called
dnl # current->bio_list in Linux 2.6.34.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_CURRENT_BIO_TAIL], [
AC_MSG_CHECKING([whether current->bio_tail exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/sched.h>
],[
current->bio_tail = (struct bio **) NULL;
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CURRENT_BIO_TAIL, 1,
[current->bio_tail exists])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether current->bio_list exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/sched.h>
],[
current->bio_list = (struct bio_list *) NULL;
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CURRENT_BIO_LIST, 1,
[current->bio_list exists])
],[
AC_MSG_ERROR(no - Please file a bug report at
https://github.com/zfsonlinux/zfs/issues/new)
])
])
])
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