77 lines
2.2 KiB
Plaintext
77 lines
2.2 KiB
Plaintext
dnl #
|
|
dnl # 3.17 API change,
|
|
dnl # wait_on_bit() no longer requires an action argument. The former
|
|
dnl # "wait_on_bit" interface required an 'action' function to be provided
|
|
dnl # which does the actual waiting. There were over 20 such functions in the
|
|
dnl # kernel, many of them identical, though most cases can be satisfied by one
|
|
dnl # of just two functions: one which uses io_schedule() and one which just
|
|
dnl # uses schedule(). This API change was made to consolidate all of those
|
|
dnl # redundant wait functions.
|
|
dnl #
|
|
AC_DEFUN([SPL_AC_WAIT_ON_BIT], [
|
|
AC_MSG_CHECKING([whether wait_on_bit() takes an action])
|
|
SPL_LINUX_TRY_COMPILE([
|
|
#include <linux/wait.h>
|
|
],[
|
|
int (*action)(void *) = NULL;
|
|
wait_on_bit(NULL, 0, action, 0);
|
|
],[
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_WAIT_ON_BIT_ACTION, 1, [yes])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
dnl #
|
|
dnl # 4.13 API change
|
|
dnl # Renamed struct wait_queue -> struct wait_queue_entry.
|
|
dnl #
|
|
AC_DEFUN([SPL_AC_WAIT_QUEUE_ENTRY_T], [
|
|
AC_MSG_CHECKING([whether wait_queue_entry_t exists])
|
|
SPL_LINUX_TRY_COMPILE([
|
|
#include <linux/wait.h>
|
|
],[
|
|
wait_queue_entry_t *entry __attribute__ ((unused));
|
|
],[
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_WAIT_QUEUE_ENTRY_T, 1,
|
|
[wait_queue_entry_t exists])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # 4.13 API change
|
|
dnl # Renamed wait_queue_head::task_list -> wait_queue_head::head
|
|
dnl # Renamed wait_queue_entry::task_list -> wait_queue_entry::entry
|
|
dnl #
|
|
AC_DEFUN([SPL_AC_WAIT_QUEUE_HEAD_ENTRY], [
|
|
AC_MSG_CHECKING([whether wq_head->head and wq_entry->entry exist])
|
|
SPL_LINUX_TRY_COMPILE([
|
|
#include <linux/wait.h>
|
|
|
|
#ifdef HAVE_WAIT_QUEUE_ENTRY_T
|
|
typedef wait_queue_head_t spl_wait_queue_head_t;
|
|
typedef wait_queue_entry_t spl_wait_queue_entry_t;
|
|
#else
|
|
typedef wait_queue_head_t spl_wait_queue_head_t;
|
|
typedef wait_queue_t spl_wait_queue_entry_t;
|
|
#endif
|
|
],[
|
|
spl_wait_queue_head_t wq_head;
|
|
spl_wait_queue_entry_t wq_entry;
|
|
struct list_head *head __attribute__ ((unused));
|
|
struct list_head *entry __attribute__ ((unused));
|
|
|
|
head = &wq_head.head;
|
|
entry = &wq_entry.entry;
|
|
],[
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_WAIT_QUEUE_HEAD_ENTRY, 1,
|
|
[wq_head->head and wq_entry->entry exist])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|