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ZAP: Add by_dnode variants to lookup/prefetch_uint64

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Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
Reviewed-by: Brian Atkinson <batkinson@lanl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored by: iXsystems, Inc.
Closes #16740
This commit is contained in:
Alexander Motin 2024-11-10 17:26:49 -05:00 committed by Brian Behlendorf
parent 1ee251bdde
commit 309ce6303f
2 changed files with 62 additions and 13 deletions
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7
include/sys/zap.h
View File

@ -223,11 +223,15 @@ int zap_lookup_norm(objset_t *ds, uint64_t zapobj, const char *name,
boolean_t *normalization_conflictp);
int zap_lookup_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key,
int key_numints, uint64_t integer_size, uint64_t num_integers, void *buf);
int zap_lookup_uint64_by_dnode(dnode_t *dn, const uint64_t *key,
int key_numints, uint64_t integer_size, uint64_t num_integers, void *buf);
int zap_contains(objset_t *ds, uint64_t zapobj, const char *name);
int zap_prefetch(objset_t *os, uint64_t zapobj, const char *name);
int zap_prefetch_object(objset_t *os, uint64_t zapobj);
int zap_prefetch_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key,
int key_numints);
int zap_prefetch_uint64_by_dnode(dnode_t *dn, const uint64_t *key,
int key_numints);
int zap_lookup_by_dnode(dnode_t *dn, const char *name,
uint64_t integer_size, uint64_t num_integers, void *buf);
@ -236,9 +240,6 @@ int zap_lookup_norm_by_dnode(dnode_t *dn, const char *name,
matchtype_t mt, char *realname, int rn_len,
boolean_t *ncp);
int zap_count_write_by_dnode(dnode_t *dn, const char *name,
int add, zfs_refcount_t *towrite, zfs_refcount_t *tooverwrite);
/*
* Create an attribute with the given name and value.
*

68
module/zfs/zap_micro.c
View File

@ -1227,6 +1227,21 @@ zap_lookup_norm_by_dnode(dnode_t *dn, const char *name,
return (err);
}
static int
zap_prefetch_uint64_impl(zap_t *zap, const uint64_t *key, int key_numints)
{
zap_name_t *zn = zap_name_alloc_uint64(zap, key, key_numints);
if (zn == NULL) {
zap_unlockdir(zap, FTAG);
return (SET_ERROR(ENOTSUP));
}
fzap_prefetch(zn);
zap_name_free(zn);
zap_unlockdir(zap, FTAG);
return (0);
}
int
zap_prefetch_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key,
int key_numints)
@ -1237,13 +1252,37 @@ zap_prefetch_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key,
zap_lockdir(os, zapobj, NULL, RW_READER, TRUE, FALSE, FTAG, &zap);
if (err != 0)
return (err);
err = zap_prefetch_uint64_impl(zap, key, key_numints);
/* zap_prefetch_uint64_impl() calls zap_unlockdir() */
return (err);
}
int
zap_prefetch_uint64_by_dnode(dnode_t *dn, const uint64_t *key, int key_numints)
{
zap_t *zap;
int err =
zap_lockdir_by_dnode(dn, NULL, RW_READER, TRUE, FALSE, FTAG, &zap);
if (err != 0)
return (err);
err = zap_prefetch_uint64_impl(zap, key, key_numints);
/* zap_prefetch_uint64_impl() calls zap_unlockdir() */
return (err);
}
static int
zap_lookup_uint64_impl(zap_t *zap, const uint64_t *key,
int key_numints, uint64_t integer_size, uint64_t num_integers, void *buf)
{
zap_name_t *zn = zap_name_alloc_uint64(zap, key, key_numints);
if (zn == NULL) {
zap_unlockdir(zap, FTAG);
return (SET_ERROR(ENOTSUP));
}
fzap_prefetch(zn);
int err = fzap_lookup(zn, integer_size, num_integers, buf,
NULL, 0, NULL);
zap_name_free(zn);
zap_unlockdir(zap, FTAG);
return (err);
@ -1259,16 +1298,25 @@ zap_lookup_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key,
zap_lockdir(os, zapobj, NULL, RW_READER, TRUE, FALSE, FTAG, &zap);
if (err != 0)
return (err);
zap_name_t *zn = zap_name_alloc_uint64(zap, key, key_numints);
if (zn == NULL) {
zap_unlockdir(zap, FTAG);
return (SET_ERROR(ENOTSUP));
}
err = zap_lookup_uint64_impl(zap, key, key_numints, integer_size,
num_integers, buf);
/* zap_lookup_uint64_impl() calls zap_unlockdir() */
return (err);
}
err = fzap_lookup(zn, integer_size, num_integers, buf,
NULL, 0, NULL);
zap_name_free(zn);
zap_unlockdir(zap, FTAG);
int
zap_lookup_uint64_by_dnode(dnode_t *dn, const uint64_t *key,
int key_numints, uint64_t integer_size, uint64_t num_integers, void *buf)
{
zap_t *zap;
int err =
zap_lockdir_by_dnode(dn, NULL, RW_READER, TRUE, FALSE, FTAG, &zap);
if (err != 0)
return (err);
err = zap_lookup_uint64_impl(zap, key, key_numints, integer_size,
num_integers, buf);
/* zap_lookup_uint64_impl() calls zap_unlockdir() */
return (err);
}