X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=config%2Flustre-build-zfs.m4;h=3aa9314ab59b68b26323c3131edbbb4a0cce6186;hp=611e09dd70a2834145c21c4fd7429eb13d498a6c;hb=9765c6174ef580fb4deef4e7faea6d5ed634b00f;hpb=f56b701235674c8661691d73f55570c161fa13cb

diff --git a/config/lustre-build-zfs.m4 b/config/lustre-build-zfs.m4
index 611e09d..3aa9314 100644
--- 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])