Date: Thu, 11 Apr 2013 07:49:16 +0000 (UTC) From: Martin Matuska <mm@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r249357 - head/cddl/contrib/opensolaris/lib/libzfs/common Message-ID: <201304110749.r3B7nGxR071588@svn.freebsd.org>
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Author: mm Date: Thu Apr 11 07:49:16 2013 New Revision: 249357 URL: http://svnweb.freebsd.org/changeset/base/249357 Log: Fix libzfs to report error instead of returning zero if trying to hold or release a non-existing snapshot of a existing dataset. In recursive case error is reported if no snapshots with the requested name have been found. Problem and proposed solution reported to illumos: 3699 zfs hold or release of a non-existent snapshot does not output error MFC after: 8 days Modified: head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c Modified: head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c ============================================================================== --- head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c Thu Apr 11 07:40:30 2013 (r249356) +++ head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c Thu Apr 11 07:49:16 2013 (r249357) @@ -4203,6 +4203,17 @@ zfs_hold(zfs_handle_t *zhp, const char * ha.tag = tag; ha.recursive = recursive; (void) zfs_hold_one(zfs_handle_dup(zhp), &ha); + + if (nvlist_next_nvpair(ha.nvl, NULL) == NULL) { + fnvlist_free(ha.nvl); + ret = ENOENT; + (void) snprintf(errbuf, sizeof (errbuf), + dgettext(TEXT_DOMAIN, "cannot hold snapshot '%s@%s'"), + zhp->zfs_name, snapname); + (void) zfs_standard_error(hdl, ret, errbuf); + return (ret); + } + ret = lzc_hold(ha.nvl, cleanup_fd, &errors); fnvlist_free(ha.nvl); @@ -4304,12 +4315,25 @@ zfs_release(zfs_handle_t *zhp, const cha nvlist_t *errors; nvpair_t *elem; libzfs_handle_t *hdl = zhp->zfs_hdl; + char errbuf[1024]; ha.nvl = fnvlist_alloc(); ha.snapname = snapname; ha.tag = tag; ha.recursive = recursive; (void) zfs_release_one(zfs_handle_dup(zhp), &ha); + + if (nvlist_next_nvpair(ha.nvl, NULL) == NULL) { + fnvlist_free(ha.nvl); + ret = ENOENT; + (void) snprintf(errbuf, sizeof (errbuf), + dgettext(TEXT_DOMAIN, + "cannot release hold from snapshot '%s@%s'"), + zhp->zfs_name, snapname); + (void) zfs_standard_error(hdl, ret, errbuf); + return (ret); + } + ret = lzc_release(ha.nvl, &errors); fnvlist_free(ha.nvl); @@ -4318,8 +4342,6 @@ zfs_release(zfs_handle_t *zhp, const cha if (nvlist_next_nvpair(errors, NULL) == NULL) { /* no hold-specific errors */ - char errbuf[1024]; - (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, "cannot release")); switch (errno) { @@ -4336,8 +4358,6 @@ zfs_release(zfs_handle_t *zhp, const cha for (elem = nvlist_next_nvpair(errors, NULL); elem != NULL; elem = nvlist_next_nvpair(errors, elem)) { - char errbuf[1024]; - (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, "cannot release hold from snapshot '%s'"),
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