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Update to onnv_147

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This is the last official OpenSolaris tag before the public
development tree was closed.
This commit is contained in:
Brian Behlendorf
2010-08-26 14:24:34 -07:00
parent 1980602bfa
commit 572e285762
101 changed files with 7835 additions and 2448 deletions
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module/zfs/bpobj.c
+42 -9
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@@ -113,16 +113,15 @@ bpobj_open(bpobj_t *bpo, objset_t *os, uint64_t object)
ASSERT3U(doi.doi_type, ==, DMU_OT_BPOBJ);
ASSERT3U(doi.doi_bonus_type, ==, DMU_OT_BPOBJ_HDR);
err = dmu_bonus_hold(os, object, bpo, &bpo->bpo_dbuf);
if (err)
return (err);
bpo->bpo_os = os;
bpo->bpo_object = object;
bpo->bpo_epb = doi.doi_data_block_size >> SPA_BLKPTRSHIFT;
bpo->bpo_havecomp = (doi.doi_bonus_size > BPOBJ_SIZE_V0);
bpo->bpo_havesubobj = (doi.doi_bonus_size > BPOBJ_SIZE_V1);
err = dmu_bonus_hold(bpo->bpo_os,
bpo->bpo_object, bpo, &bpo->bpo_dbuf);
if (err)
return (err);
bpo->bpo_phys = bpo->bpo_dbuf->db_data;
return (0);
}
@@ -140,6 +139,7 @@ bpobj_close(bpobj_t *bpo)
bpo->bpo_dbuf = NULL;
bpo->bpo_phys = NULL;
bpo->bpo_cached_dbuf = NULL;
bpo->bpo_object = 0;
mutex_destroy(&bpo->bpo_lock);
}
@@ -210,8 +210,10 @@ bpobj_iterate_impl(bpobj_t *bpo, bpobj_itor_t func, void *arg, dmu_tx_t *tx,
ASSERT(bpo->bpo_havecomp);
err = dmu_object_info(bpo->bpo_os, bpo->bpo_phys->bpo_subobjs, &doi);
if (err)
if (err) {
mutex_exit(&bpo->bpo_lock);
return (err);
}
epb = doi.doi_data_block_size / sizeof (uint64_t);
for (i = bpo->bpo_phys->bpo_num_subobjs - 1; i >= 0; i--) {
@@ -252,7 +254,7 @@ bpobj_iterate_impl(bpobj_t *bpo, bpobj_itor_t func, void *arg, dmu_tx_t *tx,
&used_after, &comp_after, &uncomp_after));
bpo->bpo_phys->bpo_bytes -= used_before - used_after;
ASSERT3S(bpo->bpo_phys->bpo_bytes, >=, 0);
bpo->bpo_phys->bpo_comp -= comp_before - used_after;
bpo->bpo_phys->bpo_comp -= comp_before - comp_after;
bpo->bpo_phys->bpo_uncomp -=
uncomp_before - uncomp_after;
}
@@ -312,17 +314,17 @@ void
bpobj_enqueue_subobj(bpobj_t *bpo, uint64_t subobj, dmu_tx_t *tx)
{
bpobj_t subbpo;
uint64_t used, comp, uncomp;
uint64_t used, comp, uncomp, subsubobjs;
ASSERT(bpo->bpo_havesubobj);
ASSERT(bpo->bpo_havecomp);
VERIFY3U(0, ==, bpobj_open(&subbpo, bpo->bpo_os, subobj));
VERIFY3U(0, ==, bpobj_space(&subbpo, &used, &comp, &uncomp));
bpobj_close(&subbpo);
if (used == 0) {
/* No point in having an empty subobj. */
bpobj_close(&subbpo);
bpobj_free(bpo->bpo_os, subobj, tx);
return;
}
@@ -338,10 +340,41 @@ bpobj_enqueue_subobj(bpobj_t *bpo, uint64_t subobj, dmu_tx_t *tx)
bpo->bpo_phys->bpo_num_subobjs * sizeof (subobj),
sizeof (subobj), &subobj, tx);
bpo->bpo_phys->bpo_num_subobjs++;
/*
* If subobj has only one block of subobjs, then move subobj's
* subobjs to bpo's subobj list directly. This reduces
* recursion in bpobj_iterate due to nested subobjs.
*/
subsubobjs = subbpo.bpo_phys->bpo_subobjs;
if (subsubobjs != 0) {
dmu_object_info_t doi;
VERIFY3U(0, ==, dmu_object_info(bpo->bpo_os, subsubobjs, &doi));
if (doi.doi_max_offset == doi.doi_data_block_size) {
dmu_buf_t *subdb;
uint64_t numsubsub = subbpo.bpo_phys->bpo_num_subobjs;
VERIFY3U(0, ==, dmu_buf_hold(bpo->bpo_os, subsubobjs,
0, FTAG, &subdb, 0));
dmu_write(bpo->bpo_os, bpo->bpo_phys->bpo_subobjs,
bpo->bpo_phys->bpo_num_subobjs * sizeof (subobj),
numsubsub * sizeof (subobj), subdb->db_data, tx);
dmu_buf_rele(subdb, FTAG);
bpo->bpo_phys->bpo_num_subobjs += numsubsub;
dmu_buf_will_dirty(subbpo.bpo_dbuf, tx);
subbpo.bpo_phys->bpo_subobjs = 0;
VERIFY3U(0, ==, dmu_object_free(bpo->bpo_os,
subsubobjs, tx));
}
}
bpo->bpo_phys->bpo_bytes += used;
bpo->bpo_phys->bpo_comp += comp;
bpo->bpo_phys->bpo_uncomp += uncomp;
mutex_exit(&bpo->bpo_lock);
bpobj_close(&subbpo);
}
void