2 dnl # 2.6.39 API compat,
4 dnl # The function zlib_deflate_workspacesize() now take 2 arguments.
5 dnl # This was done to avoid always having to allocate the maximum size
6 dnl # workspace (268K). The caller can now specific the windowBits and
7 dnl # memLevel compression parameters to get a smaller workspace.
9 AC_DEFUN([ZFS_AC_KERNEL_SRC_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE], [
10 ZFS_LINUX_TEST_SRC([2args_zlib_deflate_workspacesize], [
11 #include <linux/zlib.h>
13 return zlib_deflate_workspacesize(MAX_WBITS, MAX_MEM_LEVEL);
17 AC_DEFUN([ZFS_AC_KERNEL_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE], [
18 AC_MSG_CHECKING([whether zlib_deflate_workspacesize() wants 2 args])
19 ZFS_LINUX_TEST_RESULT([2args_zlib_deflate_workspacesize], [
21 AC_DEFINE(HAVE_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE, 1,
22 [zlib_deflate_workspacesize() wants 2 args])
24 ZFS_LINUX_TEST_ERROR([zlib_deflate_workspacesize()])