OpenZFS 7431 - ZFS Channel Programs

Authored by: Chris Williamson <[email protected]>
Reviewed by: Matthew Ahrens <[email protected]>
Reviewed by: George Wilson <[email protected]>
Reviewed by: John Kennedy <[email protected]>
Reviewed by: Dan Kimmel <[email protected]>
Approved by: Garrett D'Amore <[email protected]>
Ported-by: Don Brady <[email protected]>
Ported-by: John Kennedy <[email protected]>

OpenZFS-issue: https://www.illumos.org/issues/7431
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/dfc11533

Porting Notes:
* The CLI long option arguments for '-t' and '-m' don't parse on linux
* Switched from kmem_alloc to vmem_alloc in zcp_lua_alloc
* Lua implementation is built as its own module (zlua.ko)
* Lua headers consumed directly by zfs code moved to 'include/sys/lua/'
* There is no native setjmp/longjump available in stock Linux kernel.
  Brought over implementations from illumos and FreeBSD
* The get_temporary_prop() was adapted due to VFS platform differences
* Use of inline functions in lua parser to reduce stack usage per C call
* Skip some ZFS Test Suite ZCP tests on sparc64 to avoid stack overflow

1 files changed, 14 insertions, 0 deletions

diff --git a/include/sys/dsl_dir.h b/include/sys/dsl_dir.h
index d7e443f29..8b1e343a0 100644
--- a/include/sys/dsl_dir.h
+++ b/include/sys/dsl_dir.h
@@ -134,6 +134,20 @@ void dsl_dir_name(dsl_dir_t *dd, char *buf);
 int dsl_dir_namelen(dsl_dir_t *dd);
 uint64_t dsl_dir_create_sync(dsl_pool_t *dp, dsl_dir_t *pds,
     const char *name, dmu_tx_t *tx);
+
+uint64_t dsl_dir_get_used(dsl_dir_t *dd);
+uint64_t dsl_dir_get_quota(dsl_dir_t *dd);
+uint64_t dsl_dir_get_reservation(dsl_dir_t *dd);
+uint64_t dsl_dir_get_compressratio(dsl_dir_t *dd);
+uint64_t dsl_dir_get_logicalused(dsl_dir_t *dd);
+uint64_t dsl_dir_get_usedsnap(dsl_dir_t *dd);
+uint64_t dsl_dir_get_usedds(dsl_dir_t *dd);
+uint64_t dsl_dir_get_usedrefreserv(dsl_dir_t *dd);
+uint64_t dsl_dir_get_usedchild(dsl_dir_t *dd);
+void dsl_dir_get_origin(dsl_dir_t *dd, char *buf);
+int dsl_dir_get_filesystem_count(dsl_dir_t *dd, uint64_t *count);
+int dsl_dir_get_snapshot_count(dsl_dir_t *dd, uint64_t *count);
+
 void dsl_dir_stats(dsl_dir_t *dd, nvlist_t *nv);
 uint64_t dsl_dir_space_available(dsl_dir_t *dd,
     dsl_dir_t *ancestor, int64_t delta, int ondiskonly);