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Merge pull request #369 from mmichal10/async-stop-compl

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Before stop wait for start to be finished
This commit is contained in:
Robert Baldyga 2020-03-27 13:59:18 +01:00 committed by GitHub
commit 6bb4dde213
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 13 additions and 5 deletions
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2
modules/cas_cache/cas_cache.h
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@ -58,9 +58,11 @@ struct cas_classifier;
struct cache_priv {
uint64_t core_id_bitmap[DIV_ROUND_UP(OCF_CORE_MAX, 8*sizeof(uint64_t))];
struct cas_classifier *classifier;
struct work_struct start_worker;
struct _cache_mngt_stop_context *stop_context;
atomic_t flush_interrupt_enabled;
ocf_queue_t mngt_queue;
void *attach_context;
ocf_queue_t io_queues[];
};

16
modules/cas_cache/layer_cache_management.c
View File

@ -434,7 +434,6 @@ struct _cache_mngt_attach_context {
struct ocf_mngt_cache_device_config *device_cfg;
ocf_cache_t cache;
int ocf_start_error;
struct work_struct work;
struct task_struct *rollback_thread;
struct {
@ -1695,8 +1694,9 @@ static void _cache_mngt_start_complete(ocf_cache_t cache, void *priv,
static void cache_start_finalize(struct work_struct *work)
{
struct _cache_mngt_attach_context *ctx =
container_of(work, struct _cache_mngt_attach_context, work);
struct cache_priv *cache_priv =
container_of(work, struct cache_priv, start_worker);
struct _cache_mngt_attach_context *ctx = cache_priv->attach_context;
int result;
ocf_cache_t cache = ctx->cache;
@ -1734,6 +1734,7 @@ static void cache_start_finalize(struct work_struct *work)
static void _cache_mngt_start_complete(ocf_cache_t cache, void *priv, int error)
{
struct _cache_mngt_attach_context *ctx = priv;
struct cache_priv *cache_priv = ocf_cache_get_priv(cache);
int caller_status = _cache_mngt_async_callee_peek_result(&ctx->async);
if (caller_status || error) {
@ -1750,8 +1751,7 @@ static void _cache_mngt_start_complete(ocf_cache_t cache, void *priv, int error)
} else {
_cache_mngt_log_cache_device_path(cache, ctx->device_cfg);
INIT_WORK(&ctx->work, cache_start_finalize);
schedule_work(&ctx->work);
schedule_work(&cache_priv->start_worker);
}
}
@ -1773,6 +1773,7 @@ static int _cache_mngt_cache_priv_init(ocf_cache_t cache)
}
atomic_set(&cache_priv->flush_interrupt_enabled, 1);
INIT_WORK(&cache_priv->start_worker , cache_start_finalize);
ocf_cache_set_priv(cache, cache_priv);
@ -1899,6 +1900,7 @@ int cache_mngt_init_instance(struct ocf_mngt_cache_config *cfg,
goto err;
cache_priv = ocf_cache_get_priv(cache);
cache_priv->attach_context = context;
if (load) {
ocf_mngt_cache_load(cache, device_cfg,
@ -1914,6 +1916,9 @@ int cache_mngt_init_instance(struct ocf_mngt_cache_config *cfg,
if (result != -KCAS_ERR_WAITING_INTERRUPTED)
kfree(context);
if (!result)
cache_priv->attach_context = NULL;
return result;
err:
ocf_mngt_cache_stop(cache, _cache_mngt_cache_stop_rollback_complete,
@ -2153,6 +2158,7 @@ int cache_mngt_exit_instance(const char *cache_name, size_t name_len, int flush)
cache_priv = ocf_cache_get_priv(cache);
mngt_queue = cache_priv->mngt_queue;
cancel_work_sync(&cache_priv->start_worker);
/*
* Flush cache. Flushing may take a long time, so we allow user