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OpenZFS 7431 - ZFS Channel Programs

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Authored by: Chris Williamson <chris.williamson@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: John Kennedy <john.kennedy@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Approved by: Garrett D'Amore <garrett@damore.org>
Ported-by: Don Brady <don.brady@delphix.com>
Ported-by: John Kennedy <john.kennedy@delphix.com>

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
This commit is contained in:
Chris Williamson
2018-02-08 09:16:23 -07:00
committed by Brian Behlendorf
parent 8824a7f133
commit d99a015343
179 changed files with 27056 additions and 273 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/zfs/dsl_dir.c
+112 -35
View File
@@ -947,62 +947,139 @@ dsl_dir_is_clone(dsl_dir_t *dd)
dd->dd_pool->dp_origin_snap->ds_object));
}
uint64_t
dsl_dir_get_used(dsl_dir_t *dd)
{
return (dsl_dir_phys(dd)->dd_used_bytes);
}
uint64_t
dsl_dir_get_quota(dsl_dir_t *dd)
{
return (dsl_dir_phys(dd)->dd_quota);
}
uint64_t
dsl_dir_get_reservation(dsl_dir_t *dd)
{
return (dsl_dir_phys(dd)->dd_reserved);
}
uint64_t
dsl_dir_get_compressratio(dsl_dir_t *dd)
{
/* a fixed point number, 100x the ratio */
return (dsl_dir_phys(dd)->dd_compressed_bytes == 0 ? 100 :
(dsl_dir_phys(dd)->dd_uncompressed_bytes * 100 /
dsl_dir_phys(dd)->dd_compressed_bytes));
}
uint64_t
dsl_dir_get_logicalused(dsl_dir_t *dd)
{
return (dsl_dir_phys(dd)->dd_uncompressed_bytes);
}
uint64_t
dsl_dir_get_usedsnap(dsl_dir_t *dd)
{
return (dsl_dir_phys(dd)->dd_used_breakdown[DD_USED_SNAP]);
}
uint64_t
dsl_dir_get_usedds(dsl_dir_t *dd)
{
return (dsl_dir_phys(dd)->dd_used_breakdown[DD_USED_HEAD]);
}
uint64_t
dsl_dir_get_usedrefreserv(dsl_dir_t *dd)
{
return (dsl_dir_phys(dd)->dd_used_breakdown[DD_USED_REFRSRV]);
}
uint64_t
dsl_dir_get_usedchild(dsl_dir_t *dd)
{
return (dsl_dir_phys(dd)->dd_used_breakdown[DD_USED_CHILD] +
dsl_dir_phys(dd)->dd_used_breakdown[DD_USED_CHILD_RSRV]);
}
void
dsl_dir_get_origin(dsl_dir_t *dd, char *buf)
{
dsl_dataset_t *ds;
VERIFY0(dsl_dataset_hold_obj(dd->dd_pool,
dsl_dir_phys(dd)->dd_origin_obj, FTAG, &ds));
dsl_dataset_name(ds, buf);
dsl_dataset_rele(ds, FTAG);
}
int
dsl_dir_get_filesystem_count(dsl_dir_t *dd, uint64_t *count)
{
if (dsl_dir_is_zapified(dd)) {
objset_t *os = dd->dd_pool->dp_meta_objset;
return (zap_lookup(os, dd->dd_object, DD_FIELD_FILESYSTEM_COUNT,
sizeof (*count), 1, count));
} else {
return (ENOENT);
}
}
int
dsl_dir_get_snapshot_count(dsl_dir_t *dd, uint64_t *count)
{
if (dsl_dir_is_zapified(dd)) {
objset_t *os = dd->dd_pool->dp_meta_objset;
return (zap_lookup(os, dd->dd_object, DD_FIELD_SNAPSHOT_COUNT,
sizeof (*count), 1, count));
} else {
return (ENOENT);
}
}
void
dsl_dir_stats(dsl_dir_t *dd, nvlist_t *nv)
{
uint64_t intval;
mutex_enter(&dd->dd_lock);
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USED,
dsl_dir_phys(dd)->dd_used_bytes);
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_QUOTA,
dsl_dir_phys(dd)->dd_quota);
dsl_dir_get_quota(dd));
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_RESERVATION,
dsl_dir_phys(dd)->dd_reserved);
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_COMPRESSRATIO,
dsl_dir_phys(dd)->dd_compressed_bytes == 0 ? 100 :
(dsl_dir_phys(dd)->dd_uncompressed_bytes * 100 /
dsl_dir_phys(dd)->dd_compressed_bytes));
dsl_dir_get_reservation(dd));
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_LOGICALUSED,
dsl_dir_phys(dd)->dd_uncompressed_bytes);
dsl_dir_get_logicalused(dd));
if (dsl_dir_phys(dd)->dd_flags & DD_FLAG_USED_BREAKDOWN) {
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USEDSNAP,
dsl_dir_phys(dd)->dd_used_breakdown[DD_USED_SNAP]);
dsl_dir_get_usedsnap(dd));
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USEDDS,
dsl_dir_phys(dd)->dd_used_breakdown[DD_USED_HEAD]);
dsl_dir_get_usedds(dd));
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USEDREFRESERV,
dsl_dir_phys(dd)->dd_used_breakdown[DD_USED_REFRSRV]);
dsl_dir_get_usedrefreserv(dd));
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USEDCHILD,
dsl_dir_phys(dd)->dd_used_breakdown[DD_USED_CHILD] +
dsl_dir_phys(dd)->dd_used_breakdown[DD_USED_CHILD_RSRV]);
dsl_dir_get_usedchild(dd));
}
mutex_exit(&dd->dd_lock);
if (dsl_dir_is_zapified(dd)) {
objset_t *os = dd->dd_pool->dp_meta_objset;
if (zap_lookup(os, dd->dd_object, DD_FIELD_FILESYSTEM_COUNT,
sizeof (intval), 1, &intval) == 0) {
dsl_prop_nvlist_add_uint64(nv,
ZFS_PROP_FILESYSTEM_COUNT, intval);
}
if (zap_lookup(os, dd->dd_object, DD_FIELD_SNAPSHOT_COUNT,
sizeof (intval), 1, &intval) == 0) {
dsl_prop_nvlist_add_uint64(nv,
ZFS_PROP_SNAPSHOT_COUNT, intval);
}
uint64_t count;
if (dsl_dir_get_filesystem_count(dd, &count) == 0) {
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_FILESYSTEM_COUNT,
count);
}
if (dsl_dir_get_snapshot_count(dd, &count) == 0) {
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_SNAPSHOT_COUNT,
count);
}
if (dsl_dir_is_clone(dd)) {
dsl_dataset_t *ds;
char buf[ZFS_MAX_DATASET_NAME_LEN];
VERIFY0(dsl_dataset_hold_obj(dd->dd_pool,
dsl_dir_phys(dd)->dd_origin_obj, FTAG, &ds));
dsl_dataset_name(ds, buf);
dsl_dataset_rele(ds, FTAG);
dsl_dir_get_origin(dd, buf);
dsl_prop_nvlist_add_string(nv, ZFS_PROP_ORIGIN, buf);
}
}
void