config/kernel-vfs-invalidate_folio.m4

   1 dnl #
   2 dnl # Linux 5.18 uses invalidate_folio in lieu of invalidate_page
   3 dnl #
   4 AC_DEFUN([ZFS_AC_KERNEL_SRC_VFS_INVALIDATE_FOLIO], [
   5         ZFS_LINUX_TEST_SRC([vfs_has_invalidate_folio], [
   6                 #include <linux/fs.h>
   7
   8                 static void
   9                 test_invalidate_folio(struct folio *folio, size_t offset,
  10                                       size_t len) {
  11                         (void) folio; (void) offset; (void) len;
  12                         return;
  13                 }
  14
  15                 static const struct address_space_operations
  16                     aops __attribute__ ((unused)) = {
  17                         .invalidate_folio       = test_invalidate_folio,
  18                 };
  19         ],[])
  20 ])
  21
  22 AC_DEFUN([ZFS_AC_KERNEL_VFS_INVALIDATE_FOLIO], [
  23         dnl #
  24         dnl # Linux 5.18 uses invalidate_folio in lieu of invalidate_page
  25         dnl #
  26         AC_MSG_CHECKING([whether invalidate_folio exists])
  27         ZFS_LINUX_TEST_RESULT([vfs_has_invalidate_folio], [
  28                 AC_MSG_RESULT([yes])
  29                 AC_DEFINE(HAVE_VFS_INVALIDATE_FOLIO, 1, [invalidate_folio exists])
  30         ],[
  31                 AC_MSG_RESULT([no])
  32         ])
  33 ])