xref: /freebsd/sys/contrib/openzfs/config/kernel-commit-metadata.m4 (revision 02e9120893770924227138ba49df1edb3896112a)
1dnl #
2dnl # 2.6.33 API change
3dnl # Added eops->commit_metadata() callback to allow the underlying
4dnl # filesystem to determine the most efficient way to commit the inode.
5dnl # Prior to this the nfs server would issue an explicit fsync().
6dnl #
7AC_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
17AC_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])
25