+ LB_CHECK_COMPILE([if zfs defines sa_spill_alloc],
+ sa_spill_alloc, [
+ #include <sys/kmem.h>
+ #include <sys/sa.h>
+ ],[
+ void *ptr;
+
+ ptr = sa_spill_alloc(KM_SLEEP);
+ sa_spill_free(ptr);
+ ],[
+ AC_DEFINE(HAVE_SA_SPILL_ALLOC, 1,
+ [Have sa_spill_alloc in ZFS])
+ ])
+ LB_CHECK_COMPILE([if zfs defines spa_maxblocksize],
+ spa_maxblocksize, [
+ #include <sys/spa.h>
+ ],[
+ spa_t *spa = NULL;
+ int size;
+
+ size = spa_maxblocksize(spa);
+ ],[
+ 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])
+ ])
+
+ dnl #
+ dnl # ZFS 0.7.x extended dmu_prefetch() to take an additional
+ dnl # 'level' and 'priority' argument. Use a level of 0 and a
+ dnl # priority of ZIO_PRIORITY_SYNC_READ to replicate the
+ dnl # behavior of the four argument version.
+ dnl #
+ LB_CHECK_COMPILE([if ZFS has 'dmu_prefetch' with 6 args],
+ dmu_prefetch, [
+ #include <sys/dmu.h>
+ ],[
+ objset_t *os = NULL;
+ uint64_t object = 0;
+ int64_t level = 0;
+ uint64_t offset = 0;
+ uint64_t len = 0;
+ enum zio_priority pri = ZIO_PRIORITY_SYNC_READ;
+
+ dmu_prefetch(os, object, level, offset, len, pri);
+ ],[
+ AC_DEFINE(HAVE_DMU_PREFETCH_6ARG, 1,
+ [Have 6 argument dmu_pretch in ZFS])
+ ])