Author: kevans Date: Mon Apr 1 17:44:20 2019 New Revision: 345769 URL: https://svnweb.freebsd.org/changeset/base/345769
Log: libbe: Fix zfs_is_mounted check w/ snapshots 'be_destroy' can destroy a boot environment (by name) or a given snapshot. If the target to be destroyed is a dataset, check if it's mounted. We don't want to check if the origin dataset is mounted when destroying a snapshot. PR: 236043 Submitted by: Rob Fairbanks <rob.fx907 gmail com> MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D19650 Modified: head/lib/libbe/be.c head/sbin/bectl/tests/bectl_test.sh Modified: head/lib/libbe/be.c ============================================================================== --- head/lib/libbe/be.c Mon Apr 1 16:36:02 2019 (r345768) +++ head/lib/libbe/be.c Mon Apr 1 17:44:20 2019 (r345769) @@ -265,6 +265,16 @@ be_destroy(libbe_handle_t *lbh, const char *name, int zfs_prop_get(fs, ZFS_PROP_ORIGIN, origin, sizeof(origin), NULL, NULL, 0, 1) != 0) return (set_error(lbh, BE_ERR_NOORIGIN)); + + /* Don't destroy a mounted dataset unless force is specified */ + if ((mounted = zfs_is_mounted(fs, NULL)) != 0) { + if (force) { + zfs_unmount(fs, NULL, 0); + } else { + free(bdd.snapname); + return (set_error(lbh, BE_ERR_DESTROYMNT)); + } + } } else { if (!zfs_dataset_exists(lbh->lzh, path, ZFS_TYPE_SNAPSHOT)) return (set_error(lbh, BE_ERR_NOENT)); @@ -277,16 +287,6 @@ be_destroy(libbe_handle_t *lbh, const char *name, int if (fs == NULL) { free(bdd.snapname); return (set_error(lbh, BE_ERR_ZFSOPEN)); - } - } - - /* Check if mounted, unmount if force is specified */ - if ((mounted = zfs_is_mounted(fs, NULL)) != 0) { - if (force) { - zfs_unmount(fs, NULL, 0); - } else { - free(bdd.snapname); - return (set_error(lbh, BE_ERR_DESTROYMNT)); } } Modified: head/sbin/bectl/tests/bectl_test.sh ============================================================================== --- head/sbin/bectl/tests/bectl_test.sh Mon Apr 1 16:36:02 2019 (r345768) +++ head/sbin/bectl/tests/bectl_test.sh Mon Apr 1 17:44:20 2019 (r345769) @@ -123,12 +123,21 @@ bectl_destroy_body() zpool=$(make_zpool_name) disk=${cwd}/disk.img mount=${cwd}/mnt + root=${mount}/root bectl_create_setup ${zpool} ${disk} ${mount} atf_check bectl -r ${zpool}/ROOT create -e default default2 atf_check -o not-empty zfs get mountpoint ${zpool}/ROOT/default2 atf_check -e ignore bectl -r ${zpool}/ROOT destroy default2 atf_check -e not-empty -s not-exit:0 zfs get mountpoint ${zpool}/ROOT/default2 + + # Test origin snapshot deletion when the snapshot to be destroyed + # belongs to a mounted dataset, see PR 236043. + atf_check mkdir -p ${root} + atf_check -o not-empty bectl -r ${zpool}/ROOT mount default ${root} + atf_check bectl -r ${zpool}/ROOT create -e default default3 + atf_check bectl -r ${zpool}/ROOT destroy -o default3 + atf_check bectl -r ${zpool}/ROOT unmount default } bectl_destroy_cleanup() { _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "[email protected]"
