xref: /freebsd/sys/contrib/openzfs/config/kernel-vfs-filemap_dirty_folio.m4 (revision 2a58b312b62f908ec92311d1bd8536dbaeb8e55b)
1dnl #
2dnl # Linux 5.18 uses filemap_dirty_folio in lieu of
3dnl # ___set_page_dirty_nobuffers
4dnl #
5AC_DEFUN([ZFS_AC_KERNEL_SRC_VFS_FILEMAP_DIRTY_FOLIO], [
6	ZFS_LINUX_TEST_SRC([vfs_has_filemap_dirty_folio], [
7		#include <linux/pagemap.h>
8		#include <linux/writeback.h>
9
10		static const struct address_space_operations
11		    aops __attribute__ ((unused)) = {
12			.dirty_folio	= filemap_dirty_folio,
13		};
14	],[])
15])
16
17AC_DEFUN([ZFS_AC_KERNEL_VFS_FILEMAP_DIRTY_FOLIO], [
18	dnl #
19	dnl # Linux 5.18 uses filemap_dirty_folio in lieu of
20	dnl # ___set_page_dirty_nobuffers
21	dnl #
22	AC_MSG_CHECKING([whether filemap_dirty_folio exists])
23	ZFS_LINUX_TEST_RESULT([vfs_has_filemap_dirty_folio], [
24		AC_MSG_RESULT([yes])
25		AC_DEFINE(HAVE_VFS_FILEMAP_DIRTY_FOLIO, 1,
26			[filemap_dirty_folio exists])
27	],[
28		AC_MSG_RESULT([no])
29	])
30])
31