LU-8068 osd-zfs: large dnode support

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

diff --git a/config/lustre-build-zfs.m4 b/config/lustre-build-zfs.m4
index 611e09d..3aa9314 100644 (file)
--- a/config/lustre-build-zfs.m4
+++ b/config/lustre-build-zfs.m4
@@ -450,6 +450,35 @@ your distribution.
                        AC_DEFINE(HAVE_SPA_MAXBLOCKSIZE, 1,
                                [Have spa_maxblocksize in ZFS])
                ])
+               dnl #
+               dnl # ZFS 0.7.x adds support for large dnodes.  This
+               dnl # allows Lustre to optionally specify the size of a
+               dnl # dnode which ZFS will then use to store metadata such
+               dnl # as xattrs. The default dnode size specified by the
+               dnl # 'dnodesize' dataset property will be used unless a
+               dnl # specific value is provided.
+               dnl #
+               LB_CHECK_COMPILE([if zfs defines dmu_object_alloc_dnsize],
+               dmu_object_alloc_dnsize, [
+                       #include <sys/dmu.h>
+                       #include <sys/dnode.h>
+               ],[
+                       objset_t *os = NULL;
+                       dmu_object_type_t objtype = DMU_OT_NONE;
+                       int blocksize = 0;
+                       dmu_object_type_t bonustype = DMU_OT_SA;
+                       int dnodesize = DNODE_MIN_SIZE;
+                       dmu_tx_t *tx = NULL;
+                       uint64_t id;
+
+                       id = dmu_object_alloc_dnsize(os, objtype, blocksize,
+                                                    bonustype,
+                                                    DN_BONUS_SIZE(dnodesize),
+                                                    dnodesize, tx);
+               ],[
+                       AC_DEFINE(HAVE_DMU_OBJECT_ALLOC_DNSIZE, 1,
+                               [Have dmu_object_alloc_dnsize in ZFS])
+               ])
        ])
 
        AM_CONDITIONAL(ZFS_ENABLED, [test "x$enable_zfs" = xyes])