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2b57ade9c7
kmod-kvdo/0003-TEMP_RIP_OUT_SYSFS.patch
Andrew Walsh 2b57ade9c7 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
2022-01-06 17:28:56 +00:00

269 lines
9.0 KiB
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Raw Blame History

diff -Naur kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/dedupeIndex.c kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/dedupeIndex.c
--- kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/dedupeIndex.c 2021-08-09 16:38:48.000000000 -0400
+++ kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/dedupeIndex.c 2022-01-04 17:04:39.219875889 -0500
@@ -768,7 +768,10 @@
del_timer_sync(&index->pending_timer);
}
spin_unlock_bh(&index->pending_lock);
- kobject_put(&index->dedupe_directory);
+
+ uds_free_configuration(index->configuration);
+ UDS_FREE(index->index_name);
+ UDS_FREE(index);
}
/**********************************************************************/
@@ -901,7 +904,7 @@
NULL,
};
-static struct kobj_type dedupe_directory_type = {
+static __always_unused struct kobj_type dedupe_directory_type = {
.release = dedupe_kobj_release,
.sysfs_ops = &dedupe_sysfs_ops,
.default_attrs = dedupe_attributes,
@@ -1005,19 +1008,6 @@
uds_destroy_index_session(index->index_session);
uds_free_configuration(index->configuration);
UDS_FREE(index->index_name);
- UDS_FREE(index);
- return result;
- }
-
- kobject_init(&index->dedupe_directory, &dedupe_directory_type);
- result = kobject_add(&index->dedupe_directory,
- &vdo->vdo_directory,
- "dedupe");
- if (result != VDO_SUCCESS) {
- free_work_queue(UDS_FORGET(index->uds_queue));
- uds_destroy_index_session(index->index_session);
- uds_free_configuration(index->configuration);
- UDS_FREE(index->index_name);
UDS_FREE(index);
return result;
}
diff -Naur kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/histogram.c kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/histogram.c
--- kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/histogram.c 2021-08-09 16:38:48.000000000 -0400
+++ kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/histogram.c 2022-01-04 17:06:10.761875889 -0500
@@ -620,7 +620,7 @@
NULL,
};
-static struct kobj_type histogram_kobj_type = {
+static __always_unused struct kobj_type histogram_kobj_type = {
.release = histogram_kobj_release,
.sysfs_ops = &histogram_sysfs_ops,
.default_attrs = histogram_attributes,
@@ -636,7 +636,7 @@
NULL,
};
-static struct kobj_type bucketless_histogram_kobj_type = {
+static __always_unused struct kobj_type bucketless_histogram_kobj_type = {
.release = histogram_kobj_release,
.sysfs_ops = &histogram_sysfs_ops,
.default_attrs = bucketless_histogram_attributes,
@@ -689,13 +689,6 @@
return NULL;
}
- kobject_init(&h->kobj,
- ((num_buckets > 0) ? &histogram_kobj_type :
- &bucketless_histogram_kobj_type));
- if (kobject_add(&h->kobj, parent, name) != 0) {
- histogram_kobj_release(&h->kobj);
- return NULL;
- }
return h;
}
@@ -876,6 +869,7 @@
void free_histogram(struct histogram *histogram)
{
if (histogram != NULL) {
- kobject_put(&histogram->kobj);
+ UDS_FREE(histogram->counters);
+ UDS_FREE(histogram);
}
}
diff -Naur kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/kernelLayer.c kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/kernelLayer.c
--- kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/kernelLayer.c 2021-08-09 16:38:48.000000000 -0400
+++ kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/kernelLayer.c 2022-01-04 17:07:18.228875889 -0500
@@ -620,7 +620,7 @@
/**********************************************************************/
int start_kernel_layer(struct kernel_layer *layer, char **reason)
{
- static struct kobj_type stats_directory_type = {
+ static __always_unused struct kobj_type stats_directory_type = {
.release = pool_stats_release,
.sysfs_ops = &vdo_pool_stats_sysfs_ops,
.default_attrs = vdo_pool_stats_attrs,
@@ -644,16 +644,6 @@
}
set_kernel_layer_state(layer, LAYER_RUNNING);
- kobject_init(&layer->vdo.stats_directory, &stats_directory_type);
- result = kobject_add(&layer->vdo.stats_directory,
- &layer->vdo.vdo_directory,
- "statistics");
- if (result != 0) {
- *reason = "Cannot add sysfs statistics node";
- stop_kernel_layer(layer);
- return result;
- }
- layer->vdo.stats_added = true;
if (layer->vdo.device_config->deduplication) {
// Don't try to load or rebuild the index first (and log
@@ -672,15 +662,6 @@
{
layer->vdo.allocations_allowed = true;
- // Stop services that need to gather VDO statistics from the worker
- // threads.
- if (layer->vdo.stats_added) {
- layer->vdo.stats_added = false;
- init_completion(&layer->vdo.stats_shutdown);
- kobject_put(&layer->vdo.stats_directory);
- wait_for_completion(&layer->vdo.stats_shutdown);
- }
-
switch (get_kernel_layer_state(layer)) {
case LAYER_RUNNING:
suspend_kernel_layer(layer);
diff -Naur kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/vdo.c kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/vdo.c
--- kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/vdo.c 2021-08-09 16:38:48.000000000 -0400
+++ kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/vdo.c 2022-01-04 16:48:44.637875889 -0500
@@ -145,13 +145,7 @@
* reference count; when the count goes to zero the VDO object will be
* freed as a side effect.
*/
- if (get_vdo_admin_state_code(&vdo->admin_state)
- == VDO_ADMIN_STATE_NEW) {
- UDS_FREE(vdo);
- } else {
- kobject_put(&vdo->work_queue_directory);
- kobject_put(&vdo->vdo_directory);
- }
+ UDS_FREE(vdo);
}
/**********************************************************************/
diff -Naur kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/vdoInit.c kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/vdoInit.c
--- kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/vdoInit.c 2021-08-09 16:38:48.000000000 -0400
+++ kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/vdoInit.c 2022-01-04 17:01:49.735875889 -0500
@@ -56,37 +56,13 @@
* @return VDO_SUCCESS or an error code
**/
static int initialize_vdo_kobjects(struct vdo *vdo,
- struct dm_target *target,
- char **reason)
+ struct dm_target *target __always_unused,
+ char **reason __always_unused)
{
- int result;
- struct mapped_device *md = dm_table_get_md(target->table);
- kobject_init(&vdo->vdo_directory, &vdo_directory_type);
- result = kobject_add(&vdo->vdo_directory,
- &disk_to_dev(dm_disk(md))->kobj,
- "vdo");
- if (result != 0) {
- destroy_vdo(vdo);
- kobject_put(&vdo->vdo_directory);
- *reason = "Cannot add sysfs node";
- return result;
- }
-
// Indicate that kobject_put() should now be called on the vdo
// directory in order to free the vdo rather than doing so directly.
set_vdo_admin_state_code(&vdo->admin_state,
VDO_ADMIN_STATE_INITIALIZED);
- kobject_init(&vdo->work_queue_directory,
- &vdo_work_queue_directory_type);
- result = kobject_add(&vdo->work_queue_directory,
- &vdo->vdo_directory,
- "work_queues");
- if (result != 0) {
- *reason = "Cannot add sysfs node";
- destroy_vdo(vdo);
- return result;
- }
-
return VDO_SUCCESS;
}
diff -Naur kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/workQueue.c kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/workQueue.c
--- kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581.orig/vdo/workQueue.c 2021-08-09 16:38:48.000000000 -0400
+++ kvdo-3f9bde55d3d6bd6083af31a11eb2ac066904f581/vdo/workQueue.c 2022-01-04 17:51:24.439875889 -0500
@@ -436,8 +436,6 @@
struct simple_work_queue *queue = ptr;
unsigned long flags;
- kobject_get(&queue->common.kobj);
-
queue->stats.start_time = queue->most_recent_wakeup = ktime_get_ns();
spin_lock_irqsave(&queue->lock, flags);
@@ -447,7 +445,6 @@
wake_up(&queue->start_waiters);
service_work_queue(queue);
- kobject_put(&queue->common.kobj);
return 0;
}
@@ -568,15 +565,6 @@
init_waitqueue_head(&queue->start_waiters);
spin_lock_init(&queue->lock);
- kobject_init(&queue->common.kobj, &simple_work_queue_kobj_type);
- result = kobject_add(&queue->common.kobj,
- parent_kobject,
- queue->common.name);
- if (result != 0) {
- uds_log_error("Cannot add sysfs node: %d", result);
- free_simple_work_queue(queue);
- return result;
- }
queue->num_priority_lists = num_priority_lists;
for (i = 0; i < WORK_QUEUE_PRIORITY_COUNT; i++) {
result = make_funnel_queue(&queue->priority_lists[i]);
@@ -682,17 +670,6 @@
return -ENOMEM;
}
- kobject_init(&queue->common.kobj, &round_robin_work_queue_kobj_type);
- result = kobject_add(&queue->common.kobj,
- parent_kobject,
- queue->common.name);
- if (result != 0) {
- uds_log_error("Cannot add sysfs node: %d", result);
- finish_work_queue(&queue->common);
- kobject_put(&queue->common.kobj);
- return result;
- }
-
*queue_ptr = &queue->common;
for (i = 0; i < thread_count; i++) {
@@ -783,7 +760,8 @@
free_funnel_queue(queue->priority_lists[i]);
}
cleanup_work_queue_stats(&queue->stats);
- kobject_put(&queue->common.kobj);
+ UDS_FREE(queue->common.name);
+ UDS_FREE(queue);
}
/**
@@ -804,7 +782,8 @@
free_simple_work_queue(queue_table[i]);
}
UDS_FREE(queue_table);
- kobject_put(&queue->common.kobj);
+ UDS_FREE(queue->common.name);
+ UDS_FREE(queue);
}
/**********************************************************************/
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