54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/*
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* Copyright(c) 2012-2020 Intel Corporation
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* SPDX-License-Identifier: BSD-3-Clause-Clear
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*/
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#ifndef __OBJ_BLK_H__
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#define __OBJ_BLK_H__
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#include "vol_atomic_dev_bottom.h"
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#include "vol_block_dev_bottom.h"
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#include "vol_block_dev_top.h"
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struct casdsk_disk;
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struct bd_object {
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struct casdsk_disk *dsk;
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struct block_device *btm_bd;
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/**
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* This denotes state of volatile write cache of the device.
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* This is set to true when:
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* - opening the device
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* - when writing to a device without FUA/FLUSH flags
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* This is set to false when:
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* - FLUSH request is completed on device.
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* When it is false
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* - FLUSH requests from upper layer are NOT passed to the device.
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*/
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atomic_t potentially_dirty;
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uint32_t expobj_valid : 1;
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/*!< Bit indicates that exported object was created */
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uint32_t expobj_locked : 1;
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/*!< Non zero value indicates data exported object is locked */
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uint32_t opened_by_bdev : 1;
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/*!< Opened by supplying bdev manually */
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struct atomic_dev_params atomic_params;
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atomic64_t pending_rqs;
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/*!< This fields describes in flight IO requests */
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struct workqueue_struct *workqueue;
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/*< Workqueue for internally trigerred I/O */
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};
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static inline struct bd_object *bd_object(ocf_volume_t vol)
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{
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return ocf_volume_get_priv(vol);
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}
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#endif /* __OBJ_BLK_H__ */
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