config/kernel-vfs-filemap_dirty_folio.m4

   1 dnl #
   2 dnl # Linux 5.18 uses filemap_dirty_folio in lieu of
   3 dnl # ___set_page_dirty_nobuffers
   4 dnl #
   5 AC_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
  17 AC_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 ])