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OpenZFS 7280 - Allow changing global libzpool variables in zdb and ztest through command line

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Authored by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: George Melikov <mail@gmelikov.ru>

OpenZFS-issue: https://www.illumos.org/issues/7280
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/0e60744
Closes #5676
This commit is contained in:
George Melikov
2017-01-31 21:13:10 +03:00
committed by Brian Behlendorf
parent 41425f79da
commit ed828c0c37
6 changed files with 95 additions and 14 deletions
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cmd/ztest/ztest.c
+7 -1
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@@ -629,6 +629,8 @@ usage(boolean_t requested)
"\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
"\t[-P passtime (default: %llu sec)] time per pass\n"
"\t[-B alt_ztest (default: <none>)] alternate ztest path\n"
"\t[-o variable=value] ... set global variable to an unsigned\n"
"\t 32-bit integer value\n"
"\t[-h] (print help)\n"
"",
zo->zo_pool,
@@ -664,7 +666,7 @@ process_options(int argc, char **argv)
bcopy(&ztest_opts_defaults, zo, sizeof (*zo));
while ((opt = getopt(argc, argv,
"v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:B:")) != EOF) {
"v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:B:o:")) != EOF) {
value = 0;
switch (opt) {
case 'v':
@@ -752,6 +754,10 @@ process_options(int argc, char **argv)
case 'B':
(void) strlcpy(altdir, optarg, sizeof (altdir));
break;
case 'o':
if (set_global_var(optarg) != 0)
usage(B_FALSE);
break;
case 'h':
usage(B_TRUE);
break;