Date: Tue, 12 Jul 2016 11:58:05 +0000 (UTC) From: Andriy Gapon <avg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-vendor@freebsd.org Subject: svn commit: r302657 - in vendor/illumos/dist: cmd/zfs lib/libzfs/common Message-ID: <201607121158.u6CBw5qg004609@repo.freebsd.org>
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Author: avg Date: Tue Jul 12 11:58:04 2016 New Revision: 302657 URL: https://svnweb.freebsd.org/changeset/base/302657 Log: 4521 zfstest is trying to execute evil "zfs unmount -a" illumos/illumos-gate@8808ac5dae118369991f158b6ab736cb2691ecde https://github.com/illumos/illumos-gate/commit/8808ac5dae118369991f158b6ab736cb2691ecde https://www.illumos.org/issues/4521 zfstest is trying to execute evil "zfs unmount -a", which fails (fortunately, as it would otherwise leave me with my ~ missing): 03:44:11.86 cannot unmount '/export/home/yuri': Device busy cannot unmount '/ export/home': Device busy 03:44:11.86 ERROR: /usr/sbin/zfs unmount -a exited 1 This affects, at least, zfs_mount_009_neg and zfs_mount_all_001_pos, both failing on that step. The pool containing the /export/home hierarchy is included in KEEP variable, but it doesn't seem to affect anything here. Reviewed by: Andriy Gapon <avg@FreeBSD.org> Reviewed by: Dan McDonald <danmcd@omniti.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: John Kennedy <john.kennedy@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Author: Yuri Pankov <yuri.pankov@nexenta.com> Modified: vendor/illumos/dist/cmd/zfs/zfs_main.c vendor/illumos/dist/lib/libzfs/common/libzfs.h vendor/illumos/dist/lib/libzfs/common/libzfs_config.c vendor/illumos/dist/lib/libzfs/common/libzfs_dataset.c Modified: vendor/illumos/dist/cmd/zfs/zfs_main.c ============================================================================== --- vendor/illumos/dist/cmd/zfs/zfs_main.c Tue Jul 12 11:56:45 2016 (r302656) +++ vendor/illumos/dist/cmd/zfs/zfs_main.c Tue Jul 12 11:58:04 2016 (r302657) @@ -26,9 +26,9 @@ * Copyright (c) 2012, Joyent, Inc. All rights reserved. * Copyright (c) 2011-2012 Pawel Jakub Dawidek. All rights reserved. * Copyright (c) 2013 Steven Hartland. All rights reserved. - * Copyright 2013 Nexenta Systems, Inc. All rights reserved. * Copyright (c) 2014 Integros [integros.com] * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>. + * Copyright 2016 Nexenta Systems, Inc. */ #include <assert.h> @@ -6388,6 +6388,15 @@ unshare_unmount(int op, int argc, char * continue; } + /* + * Ignore datasets that are excluded/restricted by + * parent pool name. + */ + if (zpool_skip_pool(zfs_get_pool_name(zhp))) { + zfs_close(zhp); + continue; + } + switch (op) { case OP_SHARE: verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, Modified: vendor/illumos/dist/lib/libzfs/common/libzfs.h ============================================================================== --- vendor/illumos/dist/lib/libzfs/common/libzfs.h Tue Jul 12 11:56:45 2016 (r302656) +++ vendor/illumos/dist/lib/libzfs/common/libzfs.h Tue Jul 12 11:58:04 2016 (r302657) @@ -25,8 +25,8 @@ * Copyright (c) 2011, 2015 by Delphix. All rights reserved. * Copyright (c) 2012, Joyent, Inc. All rights reserved. * Copyright (c) 2013 Steven Hartland. All rights reserved. - * Copyright 2013 Nexenta Systems, Inc. All rights reserved. * Copyright (c) 2014 Integros [integros.com] + * Copyright 2016 Nexenta Systems, Inc. */ #ifndef _LIBZFS_H @@ -220,6 +220,7 @@ extern void zpool_free_handles(libzfs_ha */ typedef int (*zpool_iter_f)(zpool_handle_t *, void *); extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *); +extern boolean_t zpool_skip_pool(const char *); /* * Functions to create and destroy pools @@ -409,6 +410,7 @@ extern void zfs_close(zfs_handle_t *); extern zfs_type_t zfs_get_type(const zfs_handle_t *); extern const char *zfs_get_name(const zfs_handle_t *); extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *); +extern const char *zfs_get_pool_name(const zfs_handle_t *); /* * Property management functions. Some functions are shared with the kernel, Modified: vendor/illumos/dist/lib/libzfs/common/libzfs_config.c ============================================================================== --- vendor/illumos/dist/lib/libzfs/common/libzfs_config.c Tue Jul 12 11:56:45 2016 (r302656) +++ vendor/illumos/dist/lib/libzfs/common/libzfs_config.c Tue Jul 12 11:58:04 2016 (r302657) @@ -27,6 +27,7 @@ /* * Copyright (c) 2012 by Delphix. All rights reserved. * Copyright (c) 2015 by Syneto S.R.L. All rights reserved. + * Copyright 2016 Nexenta Systems, Inc. */ /* @@ -338,33 +339,47 @@ zpool_refresh_stats(zpool_handle_t *zhp, } /* - * If the __ZFS_POOL_RESTRICT environment variable is set we only iterate over - * pools it lists. + * The following environment variables are undocumented + * and should be used for testing purposes only: * - * This is an undocumented feature for use during testing only. + * __ZFS_POOL_EXCLUDE - don't iterate over the pools it lists + * __ZFS_POOL_RESTRICT - iterate only over the pools it lists * * This function returns B_TRUE if the pool should be skipped * during iteration. */ -static boolean_t -check_restricted(const char *poolname) +boolean_t +zpool_skip_pool(const char *poolname) { static boolean_t initialized = B_FALSE; - static char *restricted = NULL; + static const char *exclude = NULL; + static const char *restricted = NULL; const char *cur, *end; - int len, namelen; + int len; + int namelen = strlen(poolname); if (!initialized) { initialized = B_TRUE; + exclude = getenv("__ZFS_POOL_EXCLUDE"); restricted = getenv("__ZFS_POOL_RESTRICT"); } + if (exclude != NULL) { + cur = exclude; + do { + end = strchr(cur, ' '); + len = (NULL == end) ? strlen(cur) : (end - cur); + if (len == namelen && 0 == strncmp(cur, poolname, len)) + return (B_TRUE); + cur += (len + 1); + } while (NULL != end); + } + if (NULL == restricted) return (B_FALSE); cur = restricted; - namelen = strlen(poolname); do { end = strchr(cur, ' '); len = (NULL == end) ? strlen(cur) : (end - cur); @@ -402,7 +417,7 @@ zpool_iter(libzfs_handle_t *hdl, zpool_i for (cn = uu_avl_first(hdl->libzfs_ns_avl); cn != NULL; cn = uu_avl_next(hdl->libzfs_ns_avl, cn)) { - if (check_restricted(cn->cn_name)) + if (zpool_skip_pool(cn->cn_name)) continue; if (zpool_open_silent(hdl, cn->cn_name, &zhp) != 0) { @@ -440,7 +455,7 @@ zfs_iter_root(libzfs_handle_t *hdl, zfs_ for (cn = uu_avl_first(hdl->libzfs_ns_avl); cn != NULL; cn = uu_avl_next(hdl->libzfs_ns_avl, cn)) { - if (check_restricted(cn->cn_name)) + if (zpool_skip_pool(cn->cn_name)) continue; if ((zhp = make_dataset_handle(hdl, cn->cn_name)) == NULL) Modified: vendor/illumos/dist/lib/libzfs/common/libzfs_dataset.c ============================================================================== --- vendor/illumos/dist/lib/libzfs/common/libzfs_dataset.c Tue Jul 12 11:56:45 2016 (r302656) +++ vendor/illumos/dist/lib/libzfs/common/libzfs_dataset.c Tue Jul 12 11:58:04 2016 (r302657) @@ -27,8 +27,8 @@ * Copyright (c) 2011-2012 Pawel Jakub Dawidek. All rights reserved. * Copyright (c) 2013 Martin Matuska. All rights reserved. * Copyright (c) 2013 Steven Hartland. All rights reserved. - * Copyright 2013 Nexenta Systems, Inc. All rights reserved. * Copyright (c) 2014 Integros [integros.com] + * Copyright 2016 Nexenta Systems, Inc. */ #include <ctype.h> @@ -2907,6 +2907,15 @@ zfs_get_name(const zfs_handle_t *zhp) } /* + * Returns the name of the parent pool for the given zfs handle. + */ +const char * +zfs_get_pool_name(const zfs_handle_t *zhp) +{ + return (zhp->zpool_hdl->zpool_name); +} + +/* * Returns the type of the given zfs handle. */ zfs_type_t
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