| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _LINUX_PAGE_REPORTING_H |
| #define _LINUX_PAGE_REPORTING_H |
| |
| #include <linux/mmzone.h> |
| #include <linux/scatterlist.h> |
| |
| /* This value should always be a power of 2, see page_reporting_cycle() */ |
| #define PAGE_REPORTING_CAPACITY 32 |
| |
| struct page_reporting_dev_info { |
| /* function that alters pages to make them "reported" */ |
| int (*report)(struct page_reporting_dev_info *prdev, |
| struct scatterlist *sg, unsigned int nents); |
| |
| /* work struct for processing reports */ |
| struct delayed_work work; |
| |
| /* Current state of page reporting */ |
| atomic_t state; |
| }; |
| |
| /* Tear-down and bring-up for page reporting devices */ |
| void page_reporting_unregister(struct page_reporting_dev_info *prdev); |
| int page_reporting_register(struct page_reporting_dev_info *prdev); |
| #endif /*_LINUX_PAGE_REPORTING_H */ |