kernel-bio_max_segs.m4

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    1 dnl #
    2 dnl # 5.12 API change removes BIO_MAX_PAGES in favor of bio_max_segs()
    3 dnl # which will handle the logic of setting the upper-bound to a
    4 dnl # BIO_MAX_PAGES, internally.
    5 dnl #
    6 AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_MAX_SEGS], [
    7         ZFS_LINUX_TEST_SRC([bio_max_segs], [
    8                 #include <linux/bio.h>
    9         ],[
   10                 bio_max_segs(1);
   11         ])
   12 ])
   13 
   14 AC_DEFUN([ZFS_AC_KERNEL_BIO_MAX_SEGS], [
   15         AC_MSG_CHECKING([whether bio_max_segs() exists])
   16         ZFS_LINUX_TEST_RESULT([bio_max_segs], [
   17                 AC_MSG_RESULT(yes)
   18 
   19                 AC_DEFINE([HAVE_BIO_MAX_SEGS], 1, [bio_max_segs() is implemented])
   20         ],[
   21                 AC_MSG_RESULT(no)
   22         ])
   23 ])

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FreeBSD/Linux Kernel Cross Reference sys/contrib/openzfs/config/kernel-bio_max_segs.m4

FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/config/kernel-bio_max_segs.m4