OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R
[zfs.git] / config / kernel-automount.m4
blob1ee4c168d43e4048bde2867f727ceccacf6ad0d9
1 dnl #
2 dnl # 2.6.37 API change
3 dnl # The dops->d_automount() dentry operation was added as a clean
4 dnl # solution to handling automounts.  Prior to this cifs/nfs clients
5 dnl # which required automount support would abuse the follow_link()
6 dnl # operation on directories for this purpose.
7 dnl #
8 AC_DEFUN([ZFS_AC_KERNEL_AUTOMOUNT], [
9         AC_MSG_CHECKING([whether dops->d_automount() exists])
10         ZFS_LINUX_TRY_COMPILE([
11                 #include <linux/dcache.h>
12                 struct vfsmount *d_automount(struct path *p) { return NULL; }
13                 struct dentry_operations dops __attribute__ ((unused)) = {
14                         .d_automount = d_automount,
15                 };
16         ],[
17         ],[
18                 AC_MSG_RESULT(yes)
19                 AC_DEFINE(HAVE_AUTOMOUNT, 1, [dops->automount() exists])
20         ],[
21                 AC_MSG_RESULT(no)
22         ])