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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/zdb/zdb.c
+13 -5
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@@ -127,7 +127,8 @@ usage(void)
{
(void) fprintf(stderr,
"Usage: %s [-CumMdibcsDvhLXFPAG] [-t txg] [-e [-p path...]] "
"[-U config] [-I inflight I/Os] [-x dumpdir] poolname [object...]\n"
"[-U config] [-I inflight I/Os] [-x dumpdir] [-o var=value] "
"poolname [object...]\n"
" %s [-divPA] [-e -p path...] [-U config] dataset "
"[object...]\n"
" %s -mM [-LXFPA] [-t txg] [-e [-p path...]] [-U config] "
@@ -189,6 +190,8 @@ usage(void)
"checksumming I/Os [default is 200]\n");
(void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
"exiting\n");
(void) fprintf(stderr, " -o <variable>=<value> set global "
"variable to an unsigned 32-bit integer value\n");
(void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
"to make only that option verbose\n");
(void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
@@ -3707,7 +3710,7 @@ main(int argc, char **argv)
spa_config_path = spa_config_path_env;
while ((c = getopt(argc, argv,
"bcdhilmMI:suCDRSAFLXx:evp:t:U:PVG")) != -1) {
"bcdhilmMI:suCDRSAFLXx:evp:t:U:PVGo")) != -1) {
switch (c) {
case 'b':
case 'c':
@@ -3762,9 +3765,6 @@ main(int argc, char **argv)
}
searchdirs[nsearch++] = optarg;
break;
case 'x':
vn_dumpdir = optarg;
break;
case 't':
max_txg = strtoull(optarg, NULL, 0);
if (max_txg < TXG_INITIAL) {
@@ -3779,6 +3779,14 @@ main(int argc, char **argv)
case 'v':
verbose++;
break;
case 'x':
vn_dumpdir = optarg;
break;
case 'o':
error = set_global_var(optarg);
if (error != 0)
usage();
break;
default:
usage();
break;