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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
12 changed files with 101 additions and 24 deletions
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lib/libspl/include/libshare.h
+2 -1
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@@ -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);