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OpenZFS 8264 - want support for promoting datasets in libzfs_core

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Authored by: Andrew Stormont <astormont@racktopsystems.com>
Reviewed by: Andriy Gapon <avg@FreeBSD.org>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Dan McDonald <danmcd@kebe.com>
Approved by: Dan McDonald <danmcd@kebe.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: Giuseppe Di Natale <dinatale2@llnl.gov>

OpenZFS-issue: https://www.illumos.org/issues/8264
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/a4b8c9a
Closes #6254
This commit is contained in:
Giuseppe Di Natale
2017-06-26 16:56:09 -07:00
committed by Brian Behlendorf
parent 7517376f93
commit d12f91fde3
4 changed files with 69 additions and 17 deletions
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lib/libzfs/libzfs_dataset.c
+7 -13
View File
@@ -29,6 +29,7 @@
* Copyright (c) 2013 Steven Hartland. All rights reserved.
* Copyright 2016 Nexenta Systems, Inc.
* Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
* Copyright 2017 RackTop Systems.
*/
#include <ctype.h>
@@ -3731,8 +3732,7 @@ int
zfs_promote(zfs_handle_t *zhp)
{
libzfs_handle_t *hdl = zhp->zfs_hdl;
zfs_cmd_t zc = {"\0"};
char parent[MAXPATHLEN];
char snapname[ZFS_MAX_DATASET_NAME_LEN];
int ret;
char errbuf[1024];
@@ -3745,31 +3745,25 @@ zfs_promote(zfs_handle_t *zhp)
return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
}
(void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent));
if (parent[0] == '\0') {
if (zhp->zfs_dmustats.dds_origin[0] == '\0') {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"not a cloned filesystem"));
return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
}
(void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin,
sizeof (zc.zc_value));
(void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc);
ret = lzc_promote(zhp->zfs_name, snapname, sizeof (snapname));
if (ret != 0) {
int save_errno = errno;
switch (save_errno) {
switch (ret) {
case EEXIST:
/* There is a conflicting snapshot name. */
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"conflicting snapshot '%s' from parent '%s'"),
zc.zc_string, parent);
snapname, zhp->zfs_dmustats.dds_origin);
return (zfs_error(hdl, EZFS_EXISTS, errbuf));
default:
return (zfs_standard_error(hdl, save_errno, errbuf));
return (zfs_standard_error(hdl, ret, errbuf));
}
}
return (ret);