config/kernel-tmpfile.m4

   1 dnl #
   2 dnl # 3.11 API change
   3 dnl # Add support for i_op->tmpfile
   4 dnl #
   5 AC_DEFUN([ZFS_AC_KERNEL_SRC_TMPFILE], [
   6         dnl #
   7         dnl # 5.11 API change
   8         dnl # add support for userns parameter to tmpfile
   9         dnl #
  10         ZFS_LINUX_TEST_SRC([inode_operations_tmpfile_userns], [
  11                 #include <linux/fs.h>
  12                 int tmpfile(struct user_namespace *userns,
  13                     struct inode *inode, struct dentry *dentry,
  14                     umode_t mode) { return 0; }
  15                 static struct inode_operations
  16                     iops __attribute__ ((unused)) = {
  17                         .tmpfile = tmpfile,
  18                 };
  19         ],[])
  20         ZFS_LINUX_TEST_SRC([inode_operations_tmpfile], [
  21                         #include <linux/fs.h>
  22                         int tmpfile(struct inode *inode, struct dentry *dentry,
  23                             umode_t mode) { return 0; }
  24                         static struct inode_operations
  25                             iops __attribute__ ((unused)) = {
  26                                 .tmpfile = tmpfile,
  27                         };
  28         ],[])
  29 ])
  30
  31 AC_DEFUN([ZFS_AC_KERNEL_TMPFILE], [
  32         AC_MSG_CHECKING([whether i_op->tmpfile() exists])
  33         ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile_userns], [
  34                 AC_MSG_RESULT(yes)
  35                 AC_DEFINE(HAVE_TMPFILE, 1, [i_op->tmpfile() exists])
  36                 AC_DEFINE(HAVE_TMPFILE_USERNS, 1, [i_op->tmpfile() has userns])
  37         ],[
  38                 ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile], [
  39                         AC_MSG_RESULT(yes)
  40                         AC_DEFINE(HAVE_TMPFILE, 1, [i_op->tmpfile() exists])
  41                 ],[
  42                         AC_MSG_RESULT(no)
  43                 ])
  44         ])
  45 ])