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Add *_by-dnode routines

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Add *_by_dnode() routines for accessing objects given their
dnode_t *, this is more efficient than accessing the object by 
(objset_t *, uint64_t object).  This change converts some but
not all of the existing consumers.  As performance-sensitive
code paths are discovered they should be converted to use
these routines.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alex Zhuravlev <bzzz@whamcloud.com>
Closes #5534 
Issue #4802
This commit is contained in:
bzzz77
2017-01-14 01:58:41 +03:00
committed by Brian Behlendorf
parent 38640550f2
commit 0eef1bde31
7 changed files with 276 additions and 76 deletions
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include/sys/zap.h
+4
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@@ -255,6 +255,9 @@ int zap_count_write_by_dnode(dnode_t *dn, const char *name,
int zap_add(objset_t *ds, uint64_t zapobj, const char *key,
int integer_size, uint64_t num_integers,
const void *val, dmu_tx_t *tx);
int zap_add_by_dnode(dnode_t *dn, const char *key,
int integer_size, uint64_t num_integers,
const void *val, dmu_tx_t *tx);
int zap_add_uint64(objset_t *ds, uint64_t zapobj, const uint64_t *key,
int key_numints, int integer_size, uint64_t num_integers,
const void *val, dmu_tx_t *tx);
@@ -294,6 +297,7 @@ int zap_length_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key,
int zap_remove(objset_t *ds, uint64_t zapobj, const char *name, dmu_tx_t *tx);
int zap_remove_norm(objset_t *ds, uint64_t zapobj, const char *name,
matchtype_t mt, dmu_tx_t *tx);
int zap_remove_by_dnode(dnode_t *dn, const char *name, dmu_tx_t *tx);
int zap_remove_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key,
int key_numints, dmu_tx_t *tx);