config/kernel-symlink.m4

   1 AC_DEFUN([ZFS_AC_KERNEL_SRC_SYMLINK], [
   2         dnl #
   3         dnl # 6.3 API change that changed the first arg
   4         dnl # to struct mnt_idmap*
   5         dnl #
   6         ZFS_LINUX_TEST_SRC([symlink_mnt_idmap], [
   7                 #include <linux/fs.h>
   8                 #include <linux/sched.h>
   9                 static int tmp_symlink(struct mnt_idmap *idmap,
  10                     struct inode *inode ,struct dentry *dentry,
  11                     const char *path) { return 0; }
  12
  13                 static const struct inode_operations
  14                         iops __attribute__ ((unused)) = {
  15                         .symlink                = tmp_symlink,
  16                 };
  17         ],[])
  18         dnl #
  19         dnl # 5.12 API change that added the struct user_namespace* arg
  20         dnl # to the front of this function type's arg list.
  21         dnl #
  22         ZFS_LINUX_TEST_SRC([symlink_userns], [
  23                 #include <linux/fs.h>
  24                 #include <linux/sched.h>
  25
  26                 static int tmp_symlink(struct user_namespace *userns,
  27                     struct inode *inode ,struct dentry *dentry,
  28                     const char *path) { return 0; }
  29
  30                 static const struct inode_operations
  31                         iops __attribute__ ((unused)) = {
  32                         .symlink                = tmp_symlink,
  33                 };
  34         ],[])
  35 ])
  36
  37 AC_DEFUN([ZFS_AC_KERNEL_SYMLINK], [
  38         AC_MSG_CHECKING([whether iops->symlink() takes struct mnt_idmap*])
  39         ZFS_LINUX_TEST_RESULT([symlink_mnt_idmap], [
  40                 AC_MSG_RESULT(yes)
  41                 AC_DEFINE(HAVE_IOPS_SYMLINK_IDMAP, 1,
  42                     [iops->symlink() takes struct mnt_idmap*])
  43         ],[
  44                 AC_MSG_RESULT(no)
  45
  46                 AC_MSG_CHECKING([whether iops->symlink() takes struct user_namespace*])
  47                 ZFS_LINUX_TEST_RESULT([symlink_userns], [
  48                         AC_MSG_RESULT(yes)
  49                         AC_DEFINE(HAVE_IOPS_SYMLINK_USERNS, 1,
  50                             [iops->symlink() takes struct user_namespace*])
  51                 ],[
  52                         AC_MSG_RESULT(no)
  53                 ])
  54         ])
  55 ])