config/kernel-kthread.m4

   1 AC_DEFUN([ZFS_AC_KERNEL_KTHREAD_COMPLETE_AND_EXIT], [
   2         dnl #
   3         dnl # 5.17 API,
   4         dnl # cead18552660702a4a46f58e65188fe5f36e9dfe ("exit: Rename complete_and_exit to kthread_complete_and_exit")
   5         dnl #
   6         dnl # Also moves the definition from include/linux/kernel.h to include/linux/kthread.h
   7         dnl #
   8         AC_MSG_CHECKING([whether kthread_complete_and_exit() is available])
   9         ZFS_LINUX_TEST_RESULT([kthread_complete_and_exit], [
  10                 AC_MSG_RESULT(yes)
  11                 AC_DEFINE(SPL_KTHREAD_COMPLETE_AND_EXIT, kthread_complete_and_exit, [kthread_complete_and_exit() available])
  12         ], [
  13                 AC_MSG_RESULT(no)
  14                 AC_DEFINE(SPL_KTHREAD_COMPLETE_AND_EXIT, complete_and_exit, [using complete_and_exit() instead])
  15         ])
  16 ])
  17
  18 AC_DEFUN([ZFS_AC_KERNEL_KTHREAD_DEQUEUE_SIGNAL_4ARG], [
  19         dnl #
  20         dnl # 5.17 API: enum pid_type * as new 4th dequeue_signal() argument,
  21         dnl # 5768d8906bc23d512b1a736c1e198aa833a6daa4 ("signal: Requeue signals in the appropriate queue")
  22         dnl #
  23         dnl # int dequeue_signal(struct task_struct *task, sigset_t *mask, kernel_siginfo_t *info);
  24         dnl # int dequeue_signal(struct task_struct *task, sigset_t *mask, kernel_siginfo_t *info, enum pid_type *type);
  25         dnl #
  26         AC_MSG_CHECKING([whether dequeue_signal() takes 4 arguments])
  27         ZFS_LINUX_TEST_RESULT([kthread_dequeue_signal], [
  28                 AC_MSG_RESULT(yes)
  29                 AC_DEFINE(HAVE_DEQUEUE_SIGNAL_4ARG, 1, [dequeue_signal() takes 4 arguments])
  30         ], [
  31                 AC_MSG_RESULT(no)
  32         ])
  33 ])
  34
  35 AC_DEFUN([ZFS_AC_KERNEL_SRC_KTHREAD_COMPLETE_AND_EXIT], [
  36         ZFS_LINUX_TEST_SRC([kthread_complete_and_exit], [
  37                 #include <linux/kthread.h>
  38         ], [
  39                 struct completion *completion = NULL;
  40                 long code = 0;
  41
  42                 kthread_complete_and_exit(completion, code);
  43         ])
  44 ])
  45
  46 AC_DEFUN([ZFS_AC_KERNEL_SRC_KTHREAD_DEQUEUE_SIGNAL_4ARG], [
  47         ZFS_LINUX_TEST_SRC([kthread_dequeue_signal], [
  48                 #include <linux/sched/signal.h>
  49         ], [
  50                 struct task_struct *task = NULL;
  51                 sigset_t *mask = NULL;
  52                 kernel_siginfo_t *info = NULL;
  53                 enum pid_type *type = NULL;
  54                 int error __attribute__ ((unused));
  55
  56                 error = dequeue_signal(task, mask, info, type);
  57         ])
  58 ])
  59
  60 AC_DEFUN([ZFS_AC_KERNEL_KTHREAD], [
  61         ZFS_AC_KERNEL_KTHREAD_COMPLETE_AND_EXIT
  62         ZFS_AC_KERNEL_KTHREAD_DEQUEUE_SIGNAL_4ARG
  63 ])
  64
  65 AC_DEFUN([ZFS_AC_KERNEL_SRC_KTHREAD], [
  66         ZFS_AC_KERNEL_SRC_KTHREAD_COMPLETE_AND_EXIT
  67         ZFS_AC_KERNEL_SRC_KTHREAD_DEQUEUE_SIGNAL_4ARG
  68 ])