c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2026-05-23 02:44:41 +03:00
Code Issues Packages Projects Releases Wiki Activity

Revert "zhack: Add 'feature disable' command"

Browse Source 
This reverts commit 8302528617 and
ebecfcd699 which broke the build.
While these patches do apply cleanly and passed previous test
runs they need to be updated to account for the changes made in
commit 241b541574.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #3878
This commit is contained in:
Brian Behlendorf
2016-05-17 11:44:50 -07:00
parent 2587cd8f93
commit ada8258141
4 changed files with 6 additions and 142 deletions
Download Patch File Download Diff File Expand all files Collapse all files
cmd/zhack/zhack.c
+4 -103
View File
@@ -58,13 +58,12 @@ libzfs_handle_t *g_zfs;
static importargs_t g_importargs;
static char *g_pool;
static boolean_t g_readonly;
static boolean_t g_force = B_FALSE;
static void
usage(void)
{
(void) fprintf(stderr,
"Usage: %s [-c cachefile] [-d dir] [-f] <subcommand> <args> ...\n"
"Usage: %s [-c cachefile] [-d dir] <subcommand> <args> ...\n"
"where <subcommand> <args> is one of the following:\n"
"\n", cmdname);
@@ -74,9 +73,6 @@ usage(void)
" feature enable [-d desc] <pool> <feature>\n"
" add a new enabled feature to the pool\n"
" -d <desc> sets the feature's description\n"
" feature disable <pool> <feature>\n"
" remove an enabled, but not active, feature\n"
" from the pool.\n"
" feature ref [-md] <pool> <feature>\n"
" change the refcount on the given feature\n"
" -d decrease instead of increase the refcount\n"
@@ -357,10 +353,8 @@ zhack_do_feature_enable(int argc, char **argv)
zhack_spa_open(target, B_FALSE, FTAG, &spa);
mos = spa->spa_meta_objset;
if (zfeature_is_supported(feature.fi_guid) && (g_force == B_FALSE))
fatal(spa, FTAG,
"'%s' is a real feature, will not enable\n"
"provide the -f option to force override", feature.fi_guid);
if (zfeature_is_supported(feature.fi_guid))
fatal(spa, FTAG, "'%s' is a real feature, will not enable");
if (0 == zap_contains(mos, spa->spa_feat_desc_obj, feature.fi_guid))
fatal(spa, FTAG, "feature already enabled: %s",
feature.fi_guid);
@@ -373,94 +367,6 @@ zhack_do_feature_enable(int argc, char **argv)
free(desc);
}
static void
zhack_feature_disable_sync(void *arg, dmu_tx_t *tx)
{
spa_t *spa = dmu_tx_pool(tx)->dp_spa;
zfeature_info_t *feature = arg;
feature_disable_sync(spa, feature, tx);
spa_history_log_internal(spa, "zhack disable feature", tx,
"name=%s can_readonly=%u",
feature->fi_guid, feature->fi_can_readonly);
}
static void
zhack_do_feature_disable(int argc, char **argv)
{
char c;
char *target;
uint64_t count;
spa_t *spa;
objset_t *mos;
zfeature_info_t feature;
spa_feature_t nodeps[] = { SPA_FEATURE_NONE };
/*
* fi_desc does not matter here because it was written to disk
* when the feature was enabled, but we need to properly set the
* feature for read or write based on the information we read off
* disk later.
*/
feature.fi_uname = "zhack";
feature.fi_mos = B_TRUE;
feature.fi_desc = NULL;
feature.fi_depends = nodeps;
feature.fi_feature = SPA_FEATURE_NONE;
optind = 1;
while ((c = getopt(argc, argv, "")) != -1) {
switch (c) {
default:
usage();
break;
}
}
argc -= optind;
argv += optind;
if (argc < 2) {
(void) fprintf(stderr, "error: missing feature or pool name\n");
usage();
}
target = argv[0];
feature.fi_guid = argv[1];
if (!zfeature_is_valid_guid(feature.fi_guid))
fatal(NULL, FTAG, "invalid feature guid: %s", feature.fi_guid);
zhack_spa_open(target, B_FALSE, FTAG, &spa);
mos = spa->spa_meta_objset;
if (zfeature_is_supported(feature.fi_guid) && (g_force == B_FALSE)) {
fatal(spa, FTAG,
"'%s' is a real feature, will not disable\n"
"provide the -f option to force override", feature.fi_guid);
}
if (0 == zap_contains(mos, spa->spa_feat_for_read_obj,
feature.fi_guid)) {
feature.fi_can_readonly = B_FALSE;
} else if (0 == zap_contains(mos, spa->spa_feat_for_write_obj,
feature.fi_guid)) {
feature.fi_can_readonly = B_TRUE;
} else {
fatal(spa, FTAG, "feature is not enabled: %s", feature.fi_guid);
}
if (feature_get_refcount_from_disk(spa, &feature, &count) == 0 &&
count > 0) {
fatal(spa, FTAG, "feature '%s' is active, can not disable",
feature.fi_guid);
}
VERIFY0(dsl_sync_task(spa_name(spa), NULL,
zhack_feature_disable_sync, &feature, 5, ZFS_SPACE_CHECK_NORMAL));
spa_close(spa, FTAG);
}
static void
feature_incr_sync(void *arg, dmu_tx_t *tx)
{
@@ -589,8 +495,6 @@ zhack_do_feature(int argc, char **argv)
zhack_do_feature_stat(argc, argv);
} else if (strcmp(subcommand, "enable") == 0) {
zhack_do_feature_enable(argc, argv);
} else if (strcmp(subcommand, "disable") == 0) {
zhack_do_feature_disable(argc, argv);
} else if (strcmp(subcommand, "ref") == 0) {
zhack_do_feature_ref(argc, argv);
} else {
@@ -619,7 +523,7 @@ main(int argc, char **argv)
dprintf_setup(&argc, argv);
zfs_prop_init();
while ((c = getopt(argc, argv, "c:d:f")) != -1) {
while ((c = getopt(argc, argv, "c:d:")) != -1) {
switch (c) {
case 'c':
g_importargs.cachefile = optarg;
@@ -628,9 +532,6 @@ main(int argc, char **argv)
assert(g_importargs.paths < MAX_NUM_PATHS);
g_importargs.path[g_importargs.paths++] = optarg;
break;
case 'f':
g_force = B_TRUE;
break;
default:
usage();
break;