Temporarily disabled creation of sysfs nodes.
This will be reverted when a proper fix is available for the noted BZ. Currently without this patch, creating a new VDO volume will cause the system to panic. Related: rhbz#2035003
This commit is contained in:
Andrew Walsh
parent
577422f7a1
commit
2b57ade9c7
268
0003-TEMP_RIP_OUT_SYSFS.patch
Normal file
268
0003-TEMP_RIP_OUT_SYSFS.patch
Normal file
@ -0,0 +1,268 @@
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diff -Naur kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/dedupeIndex.c kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/dedupeIndex.c
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--- kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/dedupeIndex.c 2021-08-09 16:38:48.000000000 -0400
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+++ kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/dedupeIndex.c 2022-01-04 17:04:39.219875889 -0500
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@@ -768,7 +768,10 @@
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del_timer_sync(&index->pending_timer);
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}
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spin_unlock_bh(&index->pending_lock);
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- kobject_put(&index->dedupe_directory);
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+
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+ uds_free_configuration(index->configuration);
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+ UDS_FREE(index->index_name);
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+ UDS_FREE(index);
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}
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/**********************************************************************/
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@@ -901,7 +904,7 @@
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NULL,
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};
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-static struct kobj_type dedupe_directory_type = {
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+static __always_unused struct kobj_type dedupe_directory_type = {
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.release = dedupe_kobj_release,
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.sysfs_ops = &dedupe_sysfs_ops,
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.default_attrs = dedupe_attributes,
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@@ -1005,19 +1008,6 @@
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uds_destroy_index_session(index->index_session);
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uds_free_configuration(index->configuration);
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UDS_FREE(index->index_name);
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- UDS_FREE(index);
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- return result;
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- }
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-
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- kobject_init(&index->dedupe_directory, &dedupe_directory_type);
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- result = kobject_add(&index->dedupe_directory,
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- &vdo->vdo_directory,
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- "dedupe");
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- if (result != VDO_SUCCESS) {
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- free_work_queue(UDS_FORGET(index->uds_queue));
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- uds_destroy_index_session(index->index_session);
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- uds_free_configuration(index->configuration);
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- UDS_FREE(index->index_name);
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UDS_FREE(index);
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return result;
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}
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diff -Naur kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/histogram.c kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/histogram.c
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--- kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/histogram.c 2021-08-09 16:38:48.000000000 -0400
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+++ kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/histogram.c 2022-01-04 17:06:10.761875889 -0500
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@@ -620,7 +620,7 @@
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NULL,
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};
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-static struct kobj_type histogram_kobj_type = {
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+static __always_unused struct kobj_type histogram_kobj_type = {
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.release = histogram_kobj_release,
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.sysfs_ops = &histogram_sysfs_ops,
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.default_attrs = histogram_attributes,
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@@ -636,7 +636,7 @@
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NULL,
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};
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-static struct kobj_type bucketless_histogram_kobj_type = {
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+static __always_unused struct kobj_type bucketless_histogram_kobj_type = {
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.release = histogram_kobj_release,
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.sysfs_ops = &histogram_sysfs_ops,
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.default_attrs = bucketless_histogram_attributes,
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@@ -689,13 +689,6 @@
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return NULL;
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}
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- kobject_init(&h->kobj,
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- ((num_buckets > 0) ? &histogram_kobj_type :
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- &bucketless_histogram_kobj_type));
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- if (kobject_add(&h->kobj, parent, name) != 0) {
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- histogram_kobj_release(&h->kobj);
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- return NULL;
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- }
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return h;
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}
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@@ -876,6 +869,7 @@
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void free_histogram(struct histogram *histogram)
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{
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if (histogram != NULL) {
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- kobject_put(&histogram->kobj);
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+ UDS_FREE(histogram->counters);
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+ UDS_FREE(histogram);
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}
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}
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diff -Naur kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/kernelLayer.c kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/kernelLayer.c
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--- kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/kernelLayer.c 2021-08-09 16:38:48.000000000 -0400
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+++ kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/kernelLayer.c 2022-01-04 17:07:18.228875889 -0500
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@@ -620,7 +620,7 @@
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/**********************************************************************/
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int start_kernel_layer(struct kernel_layer *layer, char **reason)
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{
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- static struct kobj_type stats_directory_type = {
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+ static __always_unused struct kobj_type stats_directory_type = {
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.release = pool_stats_release,
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.sysfs_ops = &vdo_pool_stats_sysfs_ops,
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.default_attrs = vdo_pool_stats_attrs,
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@@ -644,16 +644,6 @@
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}
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set_kernel_layer_state(layer, LAYER_RUNNING);
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- kobject_init(&layer->vdo.stats_directory, &stats_directory_type);
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- result = kobject_add(&layer->vdo.stats_directory,
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- &layer->vdo.vdo_directory,
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- "statistics");
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- if (result != 0) {
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- *reason = "Cannot add sysfs statistics node";
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- stop_kernel_layer(layer);
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- return result;
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- }
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- layer->vdo.stats_added = true;
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if (layer->vdo.device_config->deduplication) {
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// Don't try to load or rebuild the index first (and log
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@@ -672,15 +662,6 @@
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{
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layer->vdo.allocations_allowed = true;
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- // Stop services that need to gather VDO statistics from the worker
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- // threads.
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- if (layer->vdo.stats_added) {
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- layer->vdo.stats_added = false;
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- init_completion(&layer->vdo.stats_shutdown);
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- kobject_put(&layer->vdo.stats_directory);
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- wait_for_completion(&layer->vdo.stats_shutdown);
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- }
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-
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switch (get_kernel_layer_state(layer)) {
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case LAYER_RUNNING:
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suspend_kernel_layer(layer);
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diff -Naur kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/vdo.c kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/vdo.c
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--- kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/vdo.c 2021-08-09 16:38:48.000000000 -0400
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+++ kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/vdo.c 2022-01-04 16:48:44.637875889 -0500
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@@ -145,13 +145,7 @@
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* reference count; when the count goes to zero the VDO object will be
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* freed as a side effect.
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*/
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- if (get_vdo_admin_state_code(&vdo->admin_state)
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- == VDO_ADMIN_STATE_NEW) {
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- UDS_FREE(vdo);
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- } else {
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- kobject_put(&vdo->work_queue_directory);
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- kobject_put(&vdo->vdo_directory);
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- }
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+ UDS_FREE(vdo);
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}
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/**********************************************************************/
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diff -Naur kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/vdoInit.c kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/vdoInit.c
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--- kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/vdoInit.c 2021-08-09 16:38:48.000000000 -0400
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+++ kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/vdoInit.c 2022-01-04 17:01:49.735875889 -0500
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@@ -56,37 +56,13 @@
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* @return VDO_SUCCESS or an error code
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**/
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static int initialize_vdo_kobjects(struct vdo *vdo,
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- struct dm_target *target,
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- char **reason)
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+ struct dm_target *target __always_unused,
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+ char **reason __always_unused)
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{
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- int result;
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- struct mapped_device *md = dm_table_get_md(target->table);
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- kobject_init(&vdo->vdo_directory, &vdo_directory_type);
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- result = kobject_add(&vdo->vdo_directory,
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- &disk_to_dev(dm_disk(md))->kobj,
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- "vdo");
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- if (result != 0) {
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- destroy_vdo(vdo);
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- kobject_put(&vdo->vdo_directory);
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- *reason = "Cannot add sysfs node";
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- return result;
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- }
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-
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// Indicate that kobject_put() should now be called on the vdo
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// directory in order to free the vdo rather than doing so directly.
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set_vdo_admin_state_code(&vdo->admin_state,
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VDO_ADMIN_STATE_INITIALIZED);
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- kobject_init(&vdo->work_queue_directory,
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- &vdo_work_queue_directory_type);
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- result = kobject_add(&vdo->work_queue_directory,
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- &vdo->vdo_directory,
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- "work_queues");
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- if (result != 0) {
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- *reason = "Cannot add sysfs node";
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- destroy_vdo(vdo);
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- return result;
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- }
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-
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return VDO_SUCCESS;
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}
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diff -Naur kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/workQueue.c kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/workQueue.c
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--- kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/workQueue.c 2021-08-09 16:38:48.000000000 -0400
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+++ kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/workQueue.c 2022-01-04 17:51:24.439875889 -0500
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@@ -436,8 +436,6 @@
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struct simple_work_queue *queue = ptr;
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unsigned long flags;
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- kobject_get(&queue->common.kobj);
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-
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queue->stats.start_time = queue->most_recent_wakeup = ktime_get_ns();
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spin_lock_irqsave(&queue->lock, flags);
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@@ -447,7 +445,6 @@
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wake_up(&queue->start_waiters);
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service_work_queue(queue);
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- kobject_put(&queue->common.kobj);
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return 0;
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}
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@@ -568,15 +565,6 @@
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init_waitqueue_head(&queue->start_waiters);
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spin_lock_init(&queue->lock);
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- kobject_init(&queue->common.kobj, &simple_work_queue_kobj_type);
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- result = kobject_add(&queue->common.kobj,
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- parent_kobject,
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- queue->common.name);
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- if (result != 0) {
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- uds_log_error("Cannot add sysfs node: %d", result);
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- free_simple_work_queue(queue);
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- return result;
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- }
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queue->num_priority_lists = num_priority_lists;
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for (i = 0; i < WORK_QUEUE_PRIORITY_COUNT; i++) {
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result = make_funnel_queue(&queue->priority_lists[i]);
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@@ -682,17 +670,6 @@
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return -ENOMEM;
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}
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- kobject_init(&queue->common.kobj, &round_robin_work_queue_kobj_type);
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- result = kobject_add(&queue->common.kobj,
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- parent_kobject,
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- queue->common.name);
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- if (result != 0) {
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- uds_log_error("Cannot add sysfs node: %d", result);
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- finish_work_queue(&queue->common);
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- kobject_put(&queue->common.kobj);
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- return result;
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- }
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-
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*queue_ptr = &queue->common;
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for (i = 0; i < thread_count; i++) {
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@@ -783,7 +760,8 @@
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free_funnel_queue(queue->priority_lists[i]);
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}
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cleanup_work_queue_stats(&queue->stats);
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- kobject_put(&queue->common.kobj);
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+ UDS_FREE(queue->common.name);
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+ UDS_FREE(queue);
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}
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/**
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@@ -804,7 +782,8 @@
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free_simple_work_queue(queue_table[i]);
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}
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UDS_FREE(queue_table);
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- kobject_put(&queue->common.kobj);
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+ UDS_FREE(queue->common.name);
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+ UDS_FREE(queue);
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}
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/**********************************************************************/
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@ -14,6 +14,7 @@
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Source0: https://github.com/dm-vdo/%{kmod_name}/archive/%{commit}/%{kmod_name}-%{shortcommit}.tar.gz
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Patch0: 0001-Eliminate-use-of-bvec_kmap_irq.patch
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Patch1: 0002-Removed-usage-of-removed-elevator-constants.patch
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Patch2: 0003-TEMP_RIP_OUT_SYSFS.patch
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%define findpat %( echo "%""P" )
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@ -108,6 +109,7 @@ printf '%s\n' "${modules[@]}" | %{_sbindir}/weak-modules --dracut=/usr/bin/dracu
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%setup -n %{kmod_name}-%{commit}
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%patch0 -p1
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%patch1 -p1
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%patch2 -p1
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%{nil}
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set -- *
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mkdir source
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@ -159,6 +161,8 @@ rm -rf $RPM_BUILD_ROOT
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* Thu Jan 06 2022 - Andy Walsh <awalsh@redhat.com> - 8.1.0.316-10
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- Rebuilt for latest kernel.
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- Related: rhbz#2000926
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- Temporarily disabled creation of sysfs nodes.
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- Related: rhbz#2035003
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* Sun Dec 19 2021 - Andy Walsh <awalsh@redhat.com> - 8.1.0.316-9
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- Rebuilt for latest kernel.
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Block a user