790669cc46
In current code there is no possibility to clean up vbdev in case of error during management path. This patch introduces new version of vbdev_ocf_mngt_stop function, now developer can pass handle to path with rollback functions and therefore clean up not full initialised vbdev instance. Changes in this path also allows to pass status explicitly to vbdev_ocf_mngt_stop function. Signed-off-by: Marcin Dziegielewski <marcin.dziegielewski@intel.com> Change-Id: Ie9684981e48d24b3e55e4b1ab828dc8c01baa838 Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/468471 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
68 lines
2.9 KiB
C
68 lines
2.9 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef VBDEV_OCF_UTILS_H
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#define VBDEV_OCF_UTILS_H
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#include <ocf/ocf.h>
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#include "vbdev_ocf.h"
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ocf_cache_mode_t ocf_get_cache_mode(const char *cache_mode);
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const char *ocf_get_cache_modename(ocf_cache_mode_t mode);
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/* Initiate management operation
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* Receives NULL terminated array of functions (path)
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* and callback (cb)
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* and callback argument (cb_arg)
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* This function may fail with ENOMEM or EBUSY */
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int vbdev_ocf_mngt_start(struct vbdev_ocf *vbdev, vbdev_ocf_mngt_fn *path,
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vbdev_ocf_mngt_callback cb, void *cb_arg);
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/* Continue execution with polling operation (fn)
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* fn must invoke vbdev_ocf_mngt_continue() to stop polling
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* Poller has default timeout of 5 seconds */
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void vbdev_ocf_mngt_poll(struct vbdev_ocf *vbdev, vbdev_ocf_mngt_fn fn);
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/* Continue execution with next function that is on path
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* If next function is NULL, finish management operation and invoke callback */
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void vbdev_ocf_mngt_continue(struct vbdev_ocf *vbdev, int status);
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/* Stop the execution, if status is non zero set it,
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* if rollback function is not null invoke rollback
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* else invoke callback with last status returned */
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void vbdev_ocf_mngt_stop(struct vbdev_ocf *vbdev, vbdev_ocf_mngt_fn *rollback_path, int status);
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/* Get status */
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int vbdev_ocf_mngt_get_status(struct vbdev_ocf *vbdev);
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#endif
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