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Make zfs-share service resilient to stale exports

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The are a few cases where stale entries in /etc/exports.d/zfs.exports 
will cause the nfs-server service to fail when starting up.

Since the nfs-server startup consumes /etc/exports.d/zfs.exports, the 
zfs-share service (which rebuilds the list of zfs exports) should run 
before the nfs-server service.

To make the zfs-share service resilient to stale exports, this change 
truncates the zfs config file as part of the zfs share -a operation.

Reviewed-by: Allan Jude <allan@klarasystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #13775
This commit is contained in:
Don Brady 2022-09-09 11:54:16 -06:00 committed by GitHub
parent 60d995727a
commit ede037cda7
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
12 changed files with 101 additions and 24 deletions
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3
cmd/zfs/zfs_main.c
View File

@ -7093,6 +7093,9 @@ share_mount(int op, int argc, char **argv)
share_mount_state.sm_total = cb.cb_used;
pthread_mutex_init(&share_mount_state.sm_lock, NULL);
/* For a 'zfs share -a' operation start with a clean slate. */
zfs_truncate_shares(NULL);
/*
* libshare isn't mt-safe, so only do the operation in parallel
* if we're mounting. Additionally, the key-loading option must

2
etc/systemd/system/zfs-share.service.in
View File

@ -1,7 +1,7 @@
[Unit]
Description=ZFS file system shares
Documentation=man:zfs(8)
After=nfs-server.service nfs-kernel-server.service
Before=nfs-server.service nfs-kernel-server.service
After=smb.service
Before=rpc-statd-notify.service
Wants=zfs-mount.service

3
include/libzfs.h
View File

@ -21,7 +21,7 @@
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2020 by Delphix. All rights reserved.
* Copyright (c) 2011, 2022 by Delphix. All rights reserved.
* Copyright Joyent, Inc.
* Copyright (c) 2013 Steven Hartland. All rights reserved.
* Copyright (c) 2016, Intel Corporation.
@ -895,6 +895,7 @@ _LIBZFS_H int zfs_unshare(zfs_handle_t *zhp, const char *mountpoint,
_LIBZFS_H int zfs_unshareall(zfs_handle_t *zhp,
const enum sa_protocol *proto);
_LIBZFS_H void zfs_commit_shares(const enum sa_protocol *proto);
_LIBZFS_H void zfs_truncate_shares(const enum sa_protocol *proto);
_LIBZFS_H int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *);

12
lib/libshare/libshare.c
View File

@ -22,7 +22,7 @@
/*
* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011 Gunnar Beutner
* Copyright (c) 2018, 2020 by Delphix. All rights reserved.
* Copyright (c) 2018, 2022 by Delphix. All rights reserved.
*/
#include <stdio.h>
@ -96,6 +96,16 @@ sa_commit_shares(enum sa_protocol protocol)
fstypes[protocol]->commit_shares();
}
void
sa_truncate_shares(enum sa_protocol protocol)
{
/* CSTYLED */
VALIDATE_PROTOCOL(protocol, );
if (fstypes[protocol]->truncate_shares != NULL)
fstypes[protocol]->truncate_shares();
}
int
sa_validate_shareopts(const char *options, enum sa_protocol protocol)
{

3
lib/libshare/libshare_impl.h
View File

@ -22,7 +22,7 @@
/*
* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011 Gunnar Beutner
* Copyright (c) 2019, 2020 by Delphix. All rights reserved.
* Copyright (c) 2019, 2022 by Delphix. All rights reserved.
*/
#ifndef _LIBSPL_LIBSHARE_IMPL_H
#define _LIBSPL_LIBSHARE_IMPL_H
@ -39,6 +39,7 @@ typedef struct {
boolean_t (*const is_shared)(sa_share_impl_t share);
int (*const validate_shareopts)(const char *shareopts);
int (*const commit_shares)(void);
void (*const truncate_shares)(void);
} sa_fstype_t;
extern const sa_fstype_t libshare_nfs_type, libshare_smb_type;

12
lib/libshare/nfs.c
View File

@ -28,6 +28,7 @@
#include <stdio.h>
#include <errno.h>
#include <libshare.h>
#include <unistd.h>
#include "nfs.h"
@ -281,6 +282,17 @@ nfs_toggle_share(const char *lockfile, const char *exports,
return (error);
}
void
nfs_reset_shares(const char *lockfile, const char *exports)
{
int nfs_lock_fd = -1;
if (nfs_exports_lock(lockfile, &nfs_lock_fd) == 0) {
(void) ! truncate(exports, 0);
nfs_exports_unlock(lockfile, &nfs_lock_fd);
}
}
static boolean_t
nfs_is_shared_cb(void *userdata, char *line, boolean_t found_mountpoint)
{

2
lib/libshare/nfs.h
View File

@ -22,6 +22,7 @@
/*
* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011 Gunnar Beutner
* Copyright (c) 2022 by Delphix. All rights reserved.
*/
#include "libshare_impl.h"
@ -33,3 +34,4 @@ boolean_t nfs_is_shared_impl(const char *exports, sa_share_impl_t impl_share);
int nfs_toggle_share(const char *lockfile, const char *exports,
const char *expdir, sa_share_impl_t impl_share,
int(*cbk)(sa_share_impl_t impl_share, FILE *tmpfile));
void nfs_reset_shares(const char *lockfile, const char *exports);

9
lib/libshare/os/freebsd/nfs.c
View File

@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Copyright (c) 2020 by Delphix. All rights reserved.
* Copyright (c) 2020, 2022 by Delphix. All rights reserved.
*/
#include <sys/cdefs.h>
@ -195,6 +195,12 @@ nfs_commit_shares(void)
return (SA_OK);
}
static void
nfs_truncate_shares(void)
{
nfs_reset_shares(ZFS_EXPORTS_LOCK, ZFS_EXPORTS_FILE);
}
const sa_fstype_t libshare_nfs_type = {
.enable_share = nfs_enable_share,
.disable_share = nfs_disable_share,
@ -202,4 +208,5 @@ const sa_fstype_t libshare_nfs_type = {
.validate_shareopts = nfs_validate_shareopts,
.commit_shares = nfs_commit_shares,
.truncate_shares = nfs_truncate_shares,
};

9
lib/libshare/os/linux/nfs.c
View File

@ -23,7 +23,7 @@
* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011 Gunnar Beutner
* Copyright (c) 2012 Cyril Plisko. All rights reserved.
* Copyright (c) 2019, 2020 by Delphix. All rights reserved.
* Copyright (c) 2019, 2022 by Delphix. All rights reserved.
*/
#include <dirent.h>
@ -495,6 +495,12 @@ nfs_commit_shares(void)
return (libzfs_run_process(argv[0], argv, 0));
}
static void
nfs_truncate_shares(void)
{
nfs_reset_shares(ZFS_EXPORTS_LOCK, ZFS_EXPORTS_FILE);
}
const sa_fstype_t libshare_nfs_type = {
.enable_share = nfs_enable_share,
.disable_share = nfs_disable_share,
@ -502,6 +508,7 @@ const sa_fstype_t libshare_nfs_type = {
.validate_shareopts = nfs_validate_shareopts,
.commit_shares = nfs_commit_shares,
.truncate_shares = nfs_truncate_shares,
};
static boolean_t

3
lib/libspl/include/libshare.h
View File

@ -22,7 +22,7 @@
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Copyright (c) 2019, 2020 by Delphix. All rights reserved.
* Copyright (c) 2019, 2022 by Delphix. All rights reserved.
*/
#ifndef _LIBSPL_LIBSHARE_H
#define _LIBSPL_LIBSHARE_H extern __attribute__((visibility("default")))
@ -88,6 +88,7 @@ _LIBSPL_LIBSHARE_H int sa_enable_share(const char *, const char *, const char *,
_LIBSPL_LIBSHARE_H int sa_disable_share(const char *, enum sa_protocol);
_LIBSPL_LIBSHARE_H boolean_t sa_is_shared(const char *, enum sa_protocol);
_LIBSPL_LIBSHARE_H void sa_commit_shares(enum sa_protocol);
_LIBSPL_LIBSHARE_H void sa_truncate_shares(enum sa_protocol);
/* protocol specific interfaces */
_LIBSPL_LIBSHARE_H int sa_validate_shareopts(const char *, enum sa_protocol);

55
lib/libzfs/libzfs.abi
View File

@ -245,6 +245,7 @@
<elf-symbol name='sa_enable_share' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='sa_errorstr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='sa_is_shared' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='sa_truncate_shares' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='sa_validate_shareopts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='snapshot_namecheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='spl_pagesize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
@ -428,6 +429,7 @@
<elf-symbol name='zfs_strcmp_pathname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_strip_partition' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_strip_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_truncate_shares' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_type_to_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_unmount' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_unmountall' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
@ -758,6 +760,10 @@
<parameter type-id='9155d4b5' name='protocol'/>
<return type-id='48b5725f'/>
</function-decl>
<function-decl name='sa_truncate_shares' mangled-name='sa_truncate_shares' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sa_truncate_shares'>
<parameter type-id='9155d4b5' name='protocol'/>
<return type-id='48b5725f'/>
</function-decl>
<function-decl name='sa_validate_shareopts' mangled-name='sa_validate_shareopts' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sa_validate_shareopts'>
<parameter type-id='80f4b756' name='options'/>
<parameter type-id='9155d4b5' name='protocol'/>
@ -787,7 +793,7 @@
</data-member>
</class-decl>
<typedef-decl name='sa_share_impl_t' type-id='946a2c6b' id='a48b47d0'/>
<class-decl name='sa_fstype_t' size-in-bits='320' is-struct='yes' naming-typedef-id='639af739' visibility='default' id='944afa86'>
<class-decl name='sa_fstype_t' size-in-bits='384' is-struct='yes' naming-typedef-id='639af739' visibility='default' id='944afa86'>
<data-member access='public' layout-offset-in-bits='0'>
<var-decl name='enable_share' type-id='2f78a9c1' visibility='default'/>
</data-member>
@ -803,6 +809,9 @@
<data-member access='public' layout-offset-in-bits='256'>
<var-decl name='commit_shares' type-id='797ee7da' visibility='default'/>
</data-member>
<data-member access='public' layout-offset-in-bits='320'>
<var-decl name='truncate_shares' type-id='5d51038b' visibility='default'/>
</data-member>
</class-decl>
<typedef-decl name='sa_fstype_t' type-id='944afa86' id='639af739'/>
<qualified-type-def type-id='639af739' const='yes' id='d19dbca9'/>
@ -816,6 +825,8 @@
<qualified-type-def type-id='fa1f29ce' const='yes' id='2f78a9c1'/>
<pointer-type-def type-id='86373eb1' size-in-bits='64' id='f337456d'/>
<qualified-type-def type-id='f337456d' const='yes' id='81020bc2'/>
<pointer-type-def type-id='ee076206' size-in-bits='64' id='953b12f8'/>
<qualified-type-def type-id='953b12f8' const='yes' id='5d51038b'/>
<var-decl name='libshare_nfs_type' type-id='d19dbca9' visibility='default'/>
<function-type size-in-bits='64' id='276427e1'>
<return type-id='95e97e5e'/>
@ -832,6 +843,9 @@
<parameter type-id='a48b47d0'/>
<return type-id='c19b74c3'/>
</function-type>
<function-type size-in-bits='64' id='ee076206'>
<return type-id='48b5725f'/>
</function-type>
</abi-instr>
<abi-instr address-size='64' path='lib/libshare/os/linux/smb.c' language='LANG_C99'>
<var-decl name='libshare_smb_type' type-id='d19dbca9' visibility='default'/>
@ -2302,6 +2316,7 @@
<underlying-type type-id='9cac1fee'/>
<enumerator name='ZPROP_CONT' value='-2'/>
<enumerator name='ZPROP_INVAL' value='-1'/>
<enumerator name='ZPROP_USERPROP' value='-1'/>
<enumerator name='ZFS_PROP_TYPE' value='0'/>
<enumerator name='ZFS_PROP_CREATION' value='1'/>
<enumerator name='ZFS_PROP_USED' value='2'/>
@ -3034,6 +3049,10 @@
<parameter type-id='4567bbc9' name='proto'/>
<return type-id='48b5725f'/>
</function-decl>
<function-decl name='zfs_truncate_shares' mangled-name='zfs_truncate_shares' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_truncate_shares'>
<parameter type-id='4567bbc9' name='proto'/>
<return type-id='48b5725f'/>
</function-decl>
<function-decl name='zfs_unshare' mangled-name='zfs_unshare' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_unshare'>
<parameter type-id='9200a744' name='zhp'/>
<parameter type-id='80f4b756' name='mountpoint'/>
@ -3150,6 +3169,7 @@
<enum-decl name='vdev_prop_t' naming-typedef-id='5aa5c90c' id='1573bec8'>
<underlying-type type-id='9cac1fee'/>
<enumerator name='VDEV_PROP_INVAL' value='-1'/>
<enumerator name='VDEV_PROP_USERPROP' value='-1'/>
<enumerator name='VDEV_PROP_NAME' value='0'/>
<enumerator name='VDEV_PROP_CAPACITY' value='1'/>
<enumerator name='VDEV_PROP_STATE' value='2'/>
@ -3750,7 +3770,7 @@
</class-decl>
<typedef-decl name='sendflags_t' type-id='f6aa15be' id='945467e6'/>
<typedef-decl name='snapfilter_cb_t' type-id='d2a5e211' id='3d3ffb69'/>
<class-decl name='recvflags' size-in-bits='416' is-struct='yes' visibility='default' id='34a384dc'>
<class-decl name='recvflags' size-in-bits='448' is-struct='yes' visibility='default' id='34a384dc'>
<data-member access='public' layout-offset-in-bits='0'>
<var-decl name='verbose' type-id='c19b74c3' visibility='default'/>
</data-member>
@ -3790,6 +3810,9 @@
<data-member access='public' layout-offset-in-bits='384'>
<var-decl name='forceunmount' type-id='c19b74c3' visibility='default'/>
</data-member>
<data-member access='public' layout-offset-in-bits='416'>
<var-decl name='heal' type-id='c19b74c3' visibility='default'/>
</data-member>
</class-decl>
<typedef-decl name='recvflags_t' type-id='34a384dc' id='9e59d1d4'/>
<pointer-type-def type-id='f20fbd51' size-in-bits='64' id='a3681dea'/>
@ -3903,16 +3926,17 @@
<enumerator name='ZPOOL_ERRATA_ZOL_8308_ENCRYPTION' value='4'/>
</enum-decl>
<typedef-decl name='zpool_errata_t' type-id='d9abbf54' id='688c495b'/>
<pointer-type-def type-id='80f4b756' size-in-bits='64' id='7d3cd834'/>
<pointer-type-def type-id='688c495b' size-in-bits='64' id='cec6f2e4'/>
<function-decl name='zpool_get_status' mangled-name='zpool_get_status' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_get_status'>
<parameter type-id='4c81de99' name='zhp'/>
<parameter type-id='9b23c9ad' name='msgid'/>
<parameter type-id='7d3cd834' name='msgid'/>
<parameter type-id='cec6f2e4' name='errata'/>
<return type-id='d3dd6294'/>
</function-decl>
<function-decl name='zpool_import_status' mangled-name='zpool_import_status' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_import_status'>
<parameter type-id='5ce45b60' name='config'/>
<parameter type-id='9b23c9ad' name='msgid'/>
<parameter type-id='7d3cd834' name='msgid'/>
<parameter type-id='cec6f2e4' name='errata'/>
<return type-id='d3dd6294'/>
</function-decl>
@ -4032,8 +4056,8 @@
<return type-id='48b5725f'/>
</function-decl>
<function-decl name='libzfs_envvar_is_set' mangled-name='libzfs_envvar_is_set' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='libzfs_envvar_is_set'>
<parameter type-id='26a90f95' name='envvar'/>
<return type-id='95e97e5e'/>
<parameter type-id='80f4b756' name='envvar'/>
<return type-id='c19b74c3'/>
</function-decl>
<function-decl name='libzfs_init' mangled-name='libzfs_init' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='libzfs_init'>
<return type-id='b0382bb3'/>
@ -4102,15 +4126,15 @@
<return type-id='95e97e5e'/>
</function-decl>
<function-decl name='color_start' mangled-name='color_start' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='color_start'>
<parameter type-id='26a90f95' name='color'/>
<parameter type-id='80f4b756' name='color'/>
<return type-id='48b5725f'/>
</function-decl>
<function-decl name='color_end' mangled-name='color_end' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='color_end'>
<return type-id='48b5725f'/>
</function-decl>
<function-decl name='printf_color' mangled-name='printf_color' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='printf_color'>
<parameter type-id='26a90f95' name='color'/>
<parameter type-id='26a90f95' name='format'/>
<parameter type-id='80f4b756' name='color'/>
<parameter type-id='80f4b756' name='format'/>
<parameter is-variadic='yes'/>
<return type-id='95e97e5e'/>
</function-decl>
@ -4123,7 +4147,7 @@
<abi-instr address-size='64' path='lib/libzfs/os/linux/libzfs_mount_os.c' language='LANG_C99'>
<pointer-type-def type-id='7359adad' size-in-bits='64' id='1d2c2b85'/>
<function-decl name='zfs_parse_mount_options' mangled-name='zfs_parse_mount_options' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_parse_mount_options'>
<parameter type-id='26a90f95' name='mntopts'/>
<parameter type-id='80f4b756' name='mntopts'/>
<parameter type-id='1d2c2b85' name='mntflags'/>
<parameter type-id='1d2c2b85' name='zfsflags'/>
<parameter type-id='95e97e5e' name='sloppy'/>
@ -4771,8 +4795,8 @@
</function-decl>
</abi-instr>
<abi-instr address-size='64' path='module/zcommon/zfeature_common.c' language='LANG_C99'>
<array-type-def dimensions='1' type-id='83f29ca2' size-in-bits='16576' id='9d5e9e2e'>
<subrange length='37' type-id='7359adad' id='ae666bde'/>
<array-type-def dimensions='1' type-id='83f29ca2' size-in-bits='16576' id='d95b2b0b'>
<subrange length='37' type-id='7359adad' id='aa6426fb'/>
</array-type-def>
<enum-decl name='spa_feature' id='33ecb627'>
<underlying-type type-id='9cac1fee'/>
@ -4872,7 +4896,7 @@
<qualified-type-def type-id='3eee3342' const='yes' id='0c1d5bbb'/>
<pointer-type-def type-id='0c1d5bbb' size-in-bits='64' id='a3372543'/>
<pointer-type-def type-id='d6618c78' size-in-bits='64' id='a8425263'/>
<var-decl name='spa_feature_table' type-id='9d5e9e2e' mangled-name='spa_feature_table' visibility='default' elf-symbol-id='spa_feature_table'/>
<var-decl name='spa_feature_table' type-id='d95b2b0b' mangled-name='spa_feature_table' visibility='default' elf-symbol-id='spa_feature_table'/>
<var-decl name='zfeature_checks_disable' type-id='c19b74c3' mangled-name='zfeature_checks_disable' visibility='default' elf-symbol-id='zfeature_checks_disable'/>
<function-decl name='zfeature_is_valid_guid' mangled-name='zfeature_is_valid_guid' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfeature_is_valid_guid'>
<parameter type-id='80f4b756' name='name'/>
@ -4935,7 +4959,7 @@
</function-decl>
<function-decl name='zfs_special_devs' mangled-name='zfs_special_devs' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_special_devs'>
<parameter type-id='5ce45b60' name='nv'/>
<parameter type-id='26a90f95' name='type'/>
<parameter type-id='80f4b756' name='type'/>
<return type-id='c19b74c3'/>
</function-decl>
<function-decl name='zpool_get_load_policy' mangled-name='zpool_get_load_policy' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zpool_get_load_policy'>
@ -5013,7 +5037,7 @@
<typedef-decl name='zfs_deleg_note_t' type-id='729d4547' id='4613c173'/>
<class-decl name='zfs_deleg_perm_tab' size-in-bits='128' is-struct='yes' visibility='default' id='5aa05c1f'>
<data-member access='public' layout-offset-in-bits='0'>
<var-decl name='z_perm' type-id='26a90f95' visibility='default'/>
<var-decl name='z_perm' type-id='80f4b756' visibility='default'/>
</data-member>
<data-member access='public' layout-offset-in-bits='64'>
<var-decl name='z_note' type-id='4613c173' visibility='default'/>
@ -5455,7 +5479,6 @@
</data-member>
</class-decl>
<typedef-decl name='zprop_desc_t' type-id='bbff5e4b' id='ffa52b96'/>
<pointer-type-def type-id='80f4b756' size-in-bits='64' id='7d3cd834'/>
<qualified-type-def type-id='64636ce3' const='yes' id='072f7953'/>
<pointer-type-def type-id='072f7953' size-in-bits='64' id='c8bc397b'/>
<pointer-type-def type-id='ffa52b96' size-in-bits='64' id='76c8174b'/>

12
lib/libzfs/libzfs_mount.c
View File

@ -22,7 +22,7 @@
/*
* Copyright 2015 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2014, 2021 by Delphix. All rights reserved.
* Copyright (c) 2014, 2022 by Delphix. All rights reserved.
* Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
* Copyright 2017 RackTop Systems.
* Copyright (c) 2018 Datto Inc.
@ -788,6 +788,16 @@ zfs_commit_shares(const enum sa_protocol *proto)
sa_commit_shares(*p);
}
void
zfs_truncate_shares(const enum sa_protocol *proto)
{
if (proto == NULL)
proto = share_all_proto;
for (const enum sa_protocol *p = proto; *p != SA_NO_PROTOCOL; ++p)
sa_truncate_shares(*p);
}
/*
* Unshare the given filesystem.
*/