Introduce hardforce export option (-F) for "zpool export".

When exporting with this flag, zpool.cache remains untouched.

OpenSolaris onnv revision: 8211:32722be6ad3b

Approved by:	pjd, delphij (mentor)
Obtained from:	OpenSolaris (Bug ID: 6775357)

4 files changed, 26 insertions, 4 deletions

diff --git a/cddl/contrib/opensolaris/cmd/zpool/zpool_main.c b/cddl/contrib/opensolaris/cmd/zpool/zpool_main.c
index 2970371..eef60e6 100644
--- a/cddl/contrib/opensolaris/cmd/zpool/zpool_main.c
+++ b/cddl/contrib/opensolaris/cmd/zpool/zpool_main.c
@@ -879,17 +879,21 @@ int
 zpool_do_export(int argc, char **argv)
 {
 	boolean_t force = B_FALSE;
+	boolean_t hardforce = B_FALSE;
 	int c;
 	zpool_handle_t *zhp;
 	int ret;
 	int i;
 
 	/* check options */
-	while ((c = getopt(argc, argv, "f")) != -1) {
+	while ((c = getopt(argc, argv, "fF")) != -1) {
 		switch (c) {
 		case 'f':
 			force = B_TRUE;
 			break;
+		case 'F':
+			hardforce = B_TRUE;
+			break;
 		case '?':
 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
 			    optopt);
@@ -919,8 +923,12 @@ zpool_do_export(int argc, char **argv)
 			continue;
 		}
 
-		if (zpool_export(zhp, force) != 0)
+		if (hardforce) {
+			if (zpool_export_force(zhp) != 0)
+				ret = 1;
+		} else if (zpool_export(zhp, force) != 0) {
 			ret = 1;
+		}
 
 		zpool_close(zhp);
 	}
diff --git a/cddl/contrib/opensolaris/cmd/ztest/ztest.c b/cddl/contrib/opensolaris/cmd/ztest/ztest.c
index b7ca302..9744a0a 100644
--- a/cddl/contrib/opensolaris/cmd/ztest/ztest.c
+++ b/cddl/contrib/opensolaris/cmd/ztest/ztest.c
@@ -3039,7 +3039,7 @@ ztest_spa_import_export(char *oldname, char *newname)
 	/*
 	 * Export it.
 	 */
-	error = spa_export(oldname, &config, B_FALSE);
+	error = spa_export(oldname, &config, B_FALSE, B_FALSE);
 	if (error)
 		fatal(0, "spa_export('%s') = %d", oldname, error);
 
diff --git a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h
index a959494..a77317e 100644
--- a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h
+++ b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h
@@ -289,6 +289,7 @@ extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **);
  * Import and export functions
  */
 extern int zpool_export(zpool_handle_t *, boolean_t);
+extern int zpool_export_force(zpool_handle_t *);
 extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *,
     char *altroot);
 extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *,
diff --git a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_pool.c b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_pool.c
index c3cb547..0369062 100644
--- a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_pool.c
+++ b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_pool.c
@@ -1096,7 +1096,7 @@ zpool_add(zpool_handle_t *zhp, nvlist_t *nvroot)
  * mounted datasets in the pool.
  */
 int
-zpool_export(zpool_handle_t *zhp, boolean_t force)
+zpool_export_common(zpool_handle_t *zhp, boolean_t force, boolean_t hardforce)
 {
 	zfs_cmd_t zc = { 0 };
 	char msg[1024];
@@ -1109,6 +1109,7 @@ zpool_export(zpool_handle_t *zhp, boolean_t force)
 
 	(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
 	zc.zc_cookie = force;
+	zc.zc_guid = hardforce;
 
 	if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_EXPORT, &zc) != 0) {
 		switch (errno) {
@@ -1129,6 +1130,18 @@ zpool_export(zpool_handle_t *zhp, boolean_t force)
 	return (0);
 }
 
+int
+zpool_export(zpool_handle_t *zhp, boolean_t force)
+{
+	return (zpool_export_common(zhp, force, B_FALSE));
+}
+
+int
+zpool_export_force(zpool_handle_t *zhp)
+{
+	return (zpool_export_common(zhp, B_TRUE, B_TRUE));
+}
+
 /*
  * zpool_import() is a contracted interface. Should be kept the same
  * if possible.