--- /dev/null
+dnl #
+dnl # 2.6.33 API change
+dnl # Added eops->commit_metadata() callback to allow the underlying
+dnl # filesystem to determine the most efficient way to commit the inode.
+dnl # Prior to this the nfs server would issue an explicit fsync().
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_COMMIT_METADATA], [
+ AC_MSG_CHECKING([whether eops->commit_metadata() exists])
+ ZFS_LINUX_TRY_COMPILE([
+ #include <linux/exportfs.h>
+ int commit_metadata(struct inode *inode) { return 0; }
+ static struct export_operations eops __attribute__ ((unused))={
+ .commit_metadata = commit_metadata,
+ };
+ ],[
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_COMMIT_METADATA, 1,
+ [eops->commit_metadata() exists])
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+])
ZFS_AC_KERNEL_CREATE_UMODE_T
ZFS_AC_KERNEL_AUTOMOUNT
ZFS_AC_KERNEL_ENCODE_FH_WITH_INODE
+ ZFS_AC_KERNEL_COMMIT_METADATA
ZFS_AC_KERNEL_CLEAR_INODE
ZFS_AC_KERNEL_INSERT_INODE_LOCKED
ZFS_AC_KERNEL_D_MAKE_ROOT
*/
/*
* Copyright (c) 2011 Gunnar Beutner
+ * Copyright (c) 2012 Cyril Plisko. All rights reserved.
*/
return zpl_dentry_obtain_alias(ip);
}
+#ifdef HAVE_COMMIT_METADATA
+static int
+zpl_commit_metadata(struct inode *inode)
+{
+ cred_t *cr = CRED();
+ int error;
+
+ crhold(cr);
+ error = -zfs_fsync(inode, 0, cr);
+ crfree(cr);
+ ASSERT3S(error, <=, 0);
+
+ return error;
+}
+#endif /* HAVE_COMMIT_METADATA */
+
const struct export_operations zpl_export_operations = {
.encode_fh = zpl_encode_fh,
.fh_to_dentry = zpl_fh_to_dentry,
- .get_parent = zpl_get_parent
+ .get_parent = zpl_get_parent,
+#ifdef HAVE_COMMIT_METADATA
+ .commit_metadata= zpl_commit_metadata,
+#endif /* HAVE_COMMIT_METADATA */
};