config/kernel-commit-metadata.m4

   1 dnl #
   2 dnl # 2.6.33 API change
   3 dnl # Added eops->commit_metadata() callback to allow the underlying
   4 dnl # filesystem to determine the most efficient way to commit the inode.
   5 dnl # Prior to this the nfs server would issue an explicit fsync().
   6 dnl #
   7 AC_DEFUN([ZFS_AC_KERNEL_SRC_COMMIT_METADATA], [
   8         ZFS_LINUX_TEST_SRC([export_operations_commit_metadata], [
   9                 #include <linux/exportfs.h>
  10                 int commit_metadata(struct inode *inode) { return 0; }
  11                 static struct export_operations eops __attribute__ ((unused))={
  12                         .commit_metadata = commit_metadata,
  13                 };
  14         ],[])
  15 ])
  16
  17 AC_DEFUN([ZFS_AC_KERNEL_COMMIT_METADATA], [
  18         AC_MSG_CHECKING([whether eops->commit_metadata() exists])
  19         ZFS_LINUX_TEST_RESULT([export_operations_commit_metadata], [
  20                 AC_MSG_RESULT(yes)
  21         ],[
  22                 ZFS_LINUX_TEST_ERROR([eops->commit_metadata()])
  23         ])
  24 ])