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Rob Norris
fc44c73021
Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #18077
53 lines
1.4 KiB
Plaintext
53 lines
1.4 KiB
Plaintext
dnl # SPDX-License-Identifier: CDDL-1.0
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AC_DEFUN([ZFS_AC_KERNEL_SRC_MM_PAGE_FLAG_ERROR], [
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ZFS_LINUX_TEST_SRC([mm_page_flag_error], [
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#include <linux/page-flags.h>
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static enum pageflags
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test_flag __attribute__((unused)) = PG_error;
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_MM_PAGE_FLAG_ERROR], [
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AC_MSG_CHECKING([whether PG_error flag is available])
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ZFS_LINUX_TEST_RESULT([mm_page_flag_error], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_MM_PAGE_FLAG_ERROR, 1, [PG_error flag is available])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # Linux 6.18+ uses a struct typedef (memdesc_flags_t) instead of an
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dnl # 'unsigned long' for the 'flags' field in 'struct page'.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_MM_PAGE_FLAGS_STRUCT], [
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ZFS_LINUX_TEST_SRC([mm_page_flags_struct], [
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#include <linux/mm.h>
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static const struct page p __attribute__ ((unused)) = {
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.flags = { .f = 0 }
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};
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],[])
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])
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AC_DEFUN([ZFS_AC_KERNEL_MM_PAGE_FLAGS_STRUCT], [
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AC_MSG_CHECKING([whether 'flags' in 'struct page' is a struct])
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ZFS_LINUX_TEST_RESULT([mm_page_flags_struct], [
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_MM_PAGE_FLAGS_STRUCT, 1,
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['flags' in 'struct page' is a struct])
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],[
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AC_MSG_RESULT([no])
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_SRC_MM_PAGE_FLAGS], [
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ZFS_AC_KERNEL_SRC_MM_PAGE_FLAG_ERROR
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ZFS_AC_KERNEL_SRC_MM_PAGE_FLAGS_STRUCT
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])
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AC_DEFUN([ZFS_AC_KERNEL_MM_PAGE_FLAGS], [
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ZFS_AC_KERNEL_MM_PAGE_FLAG_ERROR
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ZFS_AC_KERNEL_MM_PAGE_FLAGS_STRUCT
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])
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