config/kernel-vfs-release_folio.m4

   1 dnl #
   2 dnl # Linux 5.19 uses release_folio in lieu of releasepage
   3 dnl #
   4 AC_DEFUN([ZFS_AC_KERNEL_SRC_VFS_RELEASE_FOLIO], [
   5         ZFS_LINUX_TEST_SRC([vfs_has_release_folio], [
   6                 #include <linux/fs.h>
   7
   8                 static bool
   9                 test_release_folio(struct folio *folio, gfp_t gfp) {
  10                         (void) folio; (void) gfp;
  11                         return (0);
  12                 }
  13
  14                 static const struct address_space_operations
  15                     aops __attribute__ ((unused)) = {
  16                         .release_folio  = test_release_folio,
  17                 };
  18         ],[])
  19 ])
  20
  21 AC_DEFUN([ZFS_AC_KERNEL_VFS_RELEASE_FOLIO], [
  22         dnl #
  23         dnl # Linux 5.19 uses release_folio in lieu of releasepage
  24         dnl #
  25         AC_MSG_CHECKING([whether release_folio exists])
  26         ZFS_LINUX_TEST_RESULT([vfs_has_release_folio], [
  27                 AC_MSG_RESULT([yes])
  28                 AC_DEFINE(HAVE_VFS_RELEASE_FOLIO, 1, [release_folio exists])
  29         ],[
  30                 AC_MSG_RESULT([no])
  31         ])
  32 ])