LU-11507 osd-zfs: Use zfs_refcount_add if available

[fs/lustre-release.git] / config / lustre-build-zfs.m4

diff --git a/config/lustre-build-zfs.m4 b/config/lustre-build-zfs.m4
index 5d024c2..eb82bb4 100644 (file)
--- a/config/lustre-build-zfs.m4
+++ b/config/lustre-build-zfs.m4
@@ -683,6 +683,18 @@ your distribution.
                        AC_DEFINE(HAVE_ZFS_INODE_TIMESPEC, 1,
                                [Have inode_timespec_t])
                ])
+               dnl # ZFS 0.7.12/0.8.x uses zfs_refcount_add() instead of
+               dnl # refcount_add().
+               dnl #
+               LB_CHECK_COMPILE([if ZFS has 'zfs_refcount_add'],
+               zfs_refcount_add, [
+                       #include <sys/refcount.h>
+               ],[
+                       zfs_refcount_add((zfs_refcount_t *) NULL, NULL);
+               ],[
+                       AC_DEFINE(HAVE_ZFS_REFCOUNT_ADD, 1,
+                               [Have zfs_refcount_add])
+               ])
        ])
 
        AS_IF([test "x$enable_zfs" = xyes], [