freebsd-nq/sys/contrib/openzfs/config/kernel-bio_max_segs.m4
Martin Matuska f9693bef8d zfs: merge OpenZFS master-891568c99
Notable upstream pull request merges:
  #11652 Split dmu_zfetch() speculation and execution parts
  #11682 Fix zfs_get_data access to files with wrong generation
  #11735 Clean up RAIDZ/DRAID ereport code
  #11737 Initialize metaslab range trees in metaslab_init
  #11739 FreeBSD: make seqc asserts conditional on replay
  #11763 Allow setting bootfs property on pools with indirect vdevs
  #11767 FreeBSD: Fix memory leaks in kstats

Obtained from:	OpenZFS
MFC after:	2 weeks
2021-03-21 02:17:59 +01:00

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dnl #
dnl # 5.12 API change removes BIO_MAX_PAGES in favor of bio_max_segs()
dnl # which will handle the logic of setting the upper-bound to a
dnl # BIO_MAX_PAGES, internally.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_MAX_SEGS], [
ZFS_LINUX_TEST_SRC([bio_max_segs], [
#include <linux/bio.h>
],[
bio_max_segs(1);
])
])
AC_DEFUN([ZFS_AC_KERNEL_BIO_MAX_SEGS], [
AC_MSG_CHECKING([whether bio_max_segs() exists])
ZFS_LINUX_TEST_RESULT([bio_max_segs], [
AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_BIO_MAX_SEGS], 1, [bio_max_segs() is implemented])
],[
AC_MSG_RESULT(no)
])
])