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Merge pull request #117 from mmichal10/null-ptr-on-cache-id-reuse

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Fix teardown after failed start cache operation.
This commit is contained in:
Adam Rutkowski 2019-04-11 09:03:09 -04:00 committed by GitHub
commit f0c3e049c6
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 14 additions and 22 deletions
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36
src/mngt/ocf_mngt_cache.c
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@ -1142,32 +1142,25 @@ int ocf_mngt_get_ram_needed(ocf_cache_t cache,
* @brief for error handling do partial cleanup of datastructures upon
* premature function exit.
*
* @param cache cache instance
* @param ctx OCF context
* @param params - startup params containing initialization status flags.
* Value of NULL indicates cache is fully initialized but not
* handling any I/O (cache->valid_ocf_cache_device_t is 0).
*
*/
static void _ocf_mngt_init_handle_error(ocf_cache_t cache,
ocf_ctx_t ctx, struct ocf_cachemng_init_params *params)
static void _ocf_mngt_init_handle_error(ocf_ctx_t ctx,
struct ocf_cachemng_init_params *params)
{
ocf_queue_t queue, tmp_queue;
ocf_cache_t cache = params->cache;
if (!params || params->flags.metadata_inited)
if (!params->flags.cache_alloc)
return;
if (params->flags.metadata_inited)
ocf_metadata_deinit(cache);
env_mutex_lock(&ctx->lock);
if (cache->mngt_queue)
ocf_queue_put(cache->mngt_queue);
list_for_each_entry_safe(queue, tmp_queue, &cache->io_queues, list)
ocf_queue_put(queue);
if (!params || params->flags.cache_alloc) {
list_del(&cache->list);
env_vfree(cache);
}
list_del(&cache->list);
env_vfree(cache);
env_mutex_unlock(&ctx->lock);
}
@ -1258,16 +1251,15 @@ static int _ocf_mngt_cache_start(ocf_ctx_t ctx, ocf_cache_t *cache,
if (result) {
result = -OCF_ERR_START_CACHE_FAIL;
goto _cache_mng_init_instance_ERROR;
}
ocf_log(ctx, log_debug, "Metadata initialized\n");
params.flags.metadata_inited = true;
result = _ocf_mngt_cache_init(*cache, &params);
if (result)
goto _cache_mng_init_instance_ERROR;
ocf_log(ctx, log_debug, "Metadata initialized\n");
params.flags.metadata_inited = true;
if (params.locked) {
/* Increment reference counter to match cache_lock /
cache_unlock convention. User is expected to call
@ -1285,7 +1277,7 @@ static int _ocf_mngt_cache_start(ocf_ctx_t ctx, ocf_cache_t *cache,
return 0;
_cache_mng_init_instance_ERROR:
_ocf_mngt_init_handle_error(params.cache, ctx, &params);
_ocf_mngt_init_handle_error(ctx, &params);
*cache = NULL;
return result;
}