forked from mirrors/linux
1d1f6cc581
Information was redundant between struct pstore_zone_info and struct pstore_device_info. Use struct pstore_zone_info, with member name "zone". Additionally untangle the logic for the "best effort" block device instance. Signed-off-by: Kees Cook <keescook@chromium.org> Fixed-by: Pu Lehui <pulehui@huawei.com> Link: https://lore.kernel.org/lkml/20210617005424.182305-1-pulehui@huawei.com
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PSTORE_BLK_H_
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#define __PSTORE_BLK_H_
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#include <linux/types.h>
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#include <linux/pstore.h>
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#include <linux/pstore_zone.h>
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/**
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* struct pstore_device_info - back-end pstore/blk driver structure.
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*
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* @flags: Refer to macro starting with PSTORE_FLAGS defined in
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* linux/pstore.h. It means what front-ends this device support.
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* Zero means all backends for compatible.
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* @zone: The struct pstore_zone_info details.
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*
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*/
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struct pstore_device_info {
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unsigned int flags;
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struct pstore_zone_info zone;
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};
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int register_pstore_device(struct pstore_device_info *dev);
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void unregister_pstore_device(struct pstore_device_info *dev);
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/**
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* struct pstore_blk_config - the pstore_blk backend configuration
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*
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* @device: Name of the desired block device
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* @max_reason: Maximum kmsg dump reason to store to block device
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* @kmsg_size: Total size of for kmsg dumps
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* @pmsg_size: Total size of the pmsg storage area
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* @console_size: Total size of the console storage area
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* @ftrace_size: Total size for ftrace logging data (for all CPUs)
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*/
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struct pstore_blk_config {
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char device[80];
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enum kmsg_dump_reason max_reason;
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unsigned long kmsg_size;
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unsigned long pmsg_size;
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unsigned long console_size;
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unsigned long ftrace_size;
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};
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/**
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* pstore_blk_get_config - get a copy of the pstore_blk backend configuration
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*
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* @info: The sturct pstore_blk_config to be filled in
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*
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* Failure returns negative error code, and success returns 0.
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*/
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int pstore_blk_get_config(struct pstore_blk_config *info);
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#endif
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