config/kernel-inode-setattr.m4

   1 AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_SETATTR], [
   2         dnl #
   3         dnl # Linux 6.3 API
   4         dnl # The first arg of setattr I/O operations handler type
   5         dnl # is changed to struct mnt_idmap*
   6         dnl #
   7         ZFS_LINUX_TEST_SRC([inode_operations_setattr_mnt_idmap], [
   8                 #include <linux/fs.h>
   9
  10                 static int test_setattr(
  11                     struct mnt_idmap *idmap,
  12                     struct dentry *de, struct iattr *ia)
  13                     { return 0; }
  14
  15                 static const struct inode_operations
  16                     iops __attribute__ ((unused)) = {
  17                         .setattr = test_setattr,
  18                 };
  19         ],[])
  20
  21         dnl #
  22         dnl # Linux 5.12 API
  23         dnl # The setattr I/O operations handler type was extended to require
  24         dnl # a struct user_namespace* as its first arg, to support idmapped
  25         dnl # mounts.
  26         dnl #
  27         ZFS_LINUX_TEST_SRC([inode_operations_setattr_userns], [
  28                 #include <linux/fs.h>
  29
  30                 static int test_setattr(
  31                     struct user_namespace *userns,
  32                     struct dentry *de, struct iattr *ia)
  33                     { return 0; }
  34
  35                 static const struct inode_operations
  36                     iops __attribute__ ((unused)) = {
  37                         .setattr = test_setattr,
  38                 };
  39         ],[])
  40
  41         ZFS_LINUX_TEST_SRC([inode_operations_setattr], [
  42                 #include <linux/fs.h>
  43
  44                 static int test_setattr(
  45                     struct dentry *de, struct iattr *ia)
  46                     { return 0; }
  47
  48                 static const struct inode_operations
  49                     iops __attribute__ ((unused)) = {
  50                         .setattr = test_setattr,
  51                 };
  52         ],[])
  53 ])
  54
  55 AC_DEFUN([ZFS_AC_KERNEL_INODE_SETATTR], [
  56         dnl #
  57         dnl # Kernel 6.3 test
  58         dnl #
  59         AC_MSG_CHECKING([whether iops->setattr() takes mnt_idmap])
  60         ZFS_LINUX_TEST_RESULT([inode_operations_setattr_mnt_idmap], [
  61                 AC_MSG_RESULT(yes)
  62                 AC_DEFINE(HAVE_IDMAP_IOPS_SETATTR, 1,
  63                     [iops->setattr() takes struct mnt_idmap*])
  64         ],[
  65                 AC_MSG_RESULT(no)
  66                 dnl #
  67                 dnl # Kernel 5.12 test
  68                 dnl #
  69                 AC_MSG_CHECKING([whether iops->setattr() takes user_namespace])
  70                 ZFS_LINUX_TEST_RESULT([inode_operations_setattr_userns], [
  71                         AC_MSG_RESULT(yes)
  72                         AC_DEFINE(HAVE_USERNS_IOPS_SETATTR, 1,
  73                             [iops->setattr() takes struct user_namespace*])
  74                 ],[
  75                         AC_MSG_RESULT(no)
  76
  77                         AC_MSG_CHECKING([whether iops->setattr() exists])
  78                         ZFS_LINUX_TEST_RESULT([inode_operations_setattr], [
  79                                 AC_MSG_RESULT(yes)
  80                                 AC_DEFINE(HAVE_IOPS_SETATTR, 1,
  81                                         [iops->setattr() exists])
  82                         ],[
  83                                 AC_MSG_RESULT(no)
  84                         ])
  85                 ])
  86         ])
  87 ])