7de56940a4
ocf_request has always been first class citizen in OCF, so lets place it along with another essential objects. Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/*
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* Copyright(c) 2012-2018 Intel Corporation
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* SPDX-License-Identifier: BSD-3-Clause-Clear
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*/
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#include "ocf/ocf.h"
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#include "../ocf_cache_priv.h"
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#include "engine_inv.h"
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#include "engine_common.h"
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#include "cache_engine.h"
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#include "../ocf_request.h"
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#include "../utils/utils_cache_line.h"
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#include "../metadata/metadata.h"
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#include "../concurrency/ocf_concurrency.h"
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#define OCF_ENGINE_DEBUG_IO_NAME "inv"
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#include "engine_debug.h"
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static void _ocf_invalidate_req(struct ocf_request *req, int error)
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{
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if (error) {
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req->error = error;
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env_atomic_inc(&req->core->counters->cache_errors.write);
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}
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if (env_atomic_dec_return(&req->req_remaining))
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return;
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OCF_DEBUG_RQ(req, "Completion");
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if (req->error)
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ocf_engine_error(req, true, "Failed to flush metadata to cache");
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ocf_req_unlock(req);
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/* Put OCF request - decrease reference counter */
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ocf_req_put(req);
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}
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static int _ocf_invalidate_do(struct ocf_request *req)
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{
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struct ocf_cache *cache = req->cache;
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ENV_BUG_ON(env_atomic_read(&req->req_remaining));
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OCF_METADATA_LOCK_WR();
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ocf_purge_map_info(req);
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OCF_METADATA_UNLOCK_WR();
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env_atomic_inc(&req->req_remaining);
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if (ocf_volume_is_atomic(&cache->device->volume) &&
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req->info.flush_metadata) {
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/* Metadata flush IO */
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ocf_metadata_flush_do_asynch(cache, req, _ocf_invalidate_req);
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}
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_ocf_invalidate_req(req, 0);
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return 0;
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}
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static const struct ocf_io_if _io_if_invalidate = {
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.read = _ocf_invalidate_do,
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.write = _ocf_invalidate_do,
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};
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void ocf_engine_invalidate(struct ocf_request *req)
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{
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ocf_engine_push_req_front_if(req, &_io_if_invalidate, true);
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}
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