Fix -Wuse-after-free warning in dbuf_destroy()
[zfs.git] / config / kernel-totalram-pages-func.m4
blobd0e812a8d2d2f47a9d10be12fd318c018aacdd6d
1 dnl #
2 dnl # Linux 5.0: totalram_pages is no longer a global variable, and must be
3 dnl # read via the totalram_pages() helper function.
4 dnl #
5 AC_DEFUN([ZFS_AC_KERNEL_SRC_TOTALRAM_PAGES_FUNC], [
6         ZFS_LINUX_TEST_SRC([totalram_pages], [
7                 #include <linux/mm.h>
8         ],[
9                 unsigned long pages __attribute__ ((unused));
10                 pages = totalram_pages();
11         ])
14 AC_DEFUN([ZFS_AC_KERNEL_TOTALRAM_PAGES_FUNC], [
15         AC_MSG_CHECKING([whether totalram_pages() exists])
16         ZFS_LINUX_TEST_RESULT([totalram_pages], [
17                 AC_MSG_RESULT(yes)
18                 AC_DEFINE(HAVE_TOTALRAM_PAGES_FUNC, 1,
19                     [kernel has totalram_pages()])
20         ],[
21                 AC_MSG_RESULT(no)
22         ])