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Expose dataset encryption status via fast stat path

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In truenas_pylibzfs, we query list of encrypted datasets several times,
which is expensive. This commit exposes a public API zfs_is_encrypted()
to get encryption status from fast stat path without having to refresh
the properties.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Rob Norris <robn@despairlabs.com>
Signed-off-by: Ameer Hamza <ahamza@ixsystems.com>
Closes #17368
This commit is contained in:
Ameer Hamza
2025-05-27 07:11:03 +05:00
committed by GitHub
parent b048bfa9c1
commit 2a91d577b1
6 changed files with 32 additions and 0 deletions
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lib/libzfs/libzfs.abi
+8
View File
@@ -345,6 +345,7 @@
<elf-symbol name='zfs_hold' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_hold_nvl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_is_encrypted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_is_mounted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_is_shared' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_isnumber' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
@@ -1925,6 +1926,9 @@
<data-member access='public' layout-offset-in-bits='248'>
<var-decl name='dds_origin' type-id='d1617432' visibility='default'/>
</data-member>
<data-member access='public' layout-offset-in-bits='2296'>
<var-decl name='dds_flags' type-id='b96825af' visibility='default'/>
</data-member>
</class-decl>
<typedef-decl name='dmu_objset_stats_t' type-id='098f0221' id='b2c14f17'/>
<enum-decl name='zfs_type_t' naming-typedef-id='2e45de5d' id='5d8f7321'>
@@ -3805,6 +3809,10 @@
<parameter type-id='c19b74c3' name='inheritkey'/>
<return type-id='95e97e5e'/>
</function-decl>
<function-decl name='zfs_is_encrypted' mangled-name='zfs_is_encrypted' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_is_encrypted'>
<parameter type-id='9200a744' name='zhp'/>
<return type-id='c19b74c3'/>
</function-decl>
<function-decl name='zfs_error_aux' visibility='default' binding='global' size-in-bits='64'>
<parameter type-id='b0382bb3'/>
<parameter type-id='80f4b756'/>
lib/libzfs/libzfs_crypto.c
+11
View File
@@ -1818,3 +1818,14 @@ error:
zfs_error(zhp->zfs_hdl, EZFS_CRYPTOFAILED, errbuf);
return (ret);
}
boolean_t
zfs_is_encrypted(zfs_handle_t *zhp)
{
uint8_t flags = zhp->zfs_dmustats.dds_flags;
if (flags & DDS_FLAG_HAS_ENCRYPTED)
return ((flags & DDS_FLAG_ENCRYPTED) != 0);
return (zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != ZIO_CRYPT_OFF);
}
lib/libzfs_core/libzfs_core.abi
+3
View File
@@ -1461,6 +1461,9 @@
<data-member access='public' layout-offset-in-bits='248'>
<var-decl name='dds_origin' type-id='d1617432' visibility='default'/>
</data-member>
<data-member access='public' layout-offset-in-bits='2296'>
<var-decl name='dds_flags' type-id='b96825af' visibility='default'/>
</data-member>
</class-decl>
<typedef-decl name='dmu_objset_stats_t' type-id='098f0221' id='b2c14f17'/>
<enum-decl name='dmu_objset_type' id='6b1b19f9'>