mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
53 lines
1.6 KiB
53 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
|
#ifndef _MM_PAGE_REPORTING_H |
|
#define _MM_PAGE_REPORTING_H |
|
|
|
#include <linux/mmzone.h> |
|
#include <linux/pageblock-flags.h> |
|
#include <linux/page-isolation.h> |
|
#include <linux/jump_label.h> |
|
#include <linux/slab.h> |
|
#include <linux/pgtable.h> |
|
#include <linux/scatterlist.h> |
|
|
|
#ifdef CONFIG_PAGE_REPORTING |
|
DECLARE_STATIC_KEY_FALSE(page_reporting_enabled); |
|
extern unsigned int page_reporting_order; |
|
void __page_reporting_notify(void); |
|
|
|
static inline bool page_reported(struct page *page) |
|
{ |
|
return static_branch_unlikely(&page_reporting_enabled) && |
|
PageReported(page); |
|
} |
|
|
|
/** |
|
* page_reporting_notify_free - Free page notification to start page processing |
|
* |
|
* This function is meant to act as a screener for __page_reporting_notify |
|
* which will determine if a give zone has crossed over the high-water mark |
|
* that will justify us beginning page treatment. If we have crossed that |
|
* threshold then it will start the process of pulling some pages and |
|
* placing them in the batch list for treatment. |
|
*/ |
|
static inline void page_reporting_notify_free(unsigned int order) |
|
{ |
|
/* Called from hot path in __free_one_page() */ |
|
if (!static_branch_unlikely(&page_reporting_enabled)) |
|
return; |
|
|
|
/* Determine if we have crossed reporting threshold */ |
|
if (order < page_reporting_order) |
|
return; |
|
|
|
/* This will add a few cycles, but should be called infrequently */ |
|
__page_reporting_notify(); |
|
} |
|
#else /* CONFIG_PAGE_REPORTING */ |
|
#define page_reported(_page) false |
|
|
|
static inline void page_reporting_notify_free(unsigned int order) |
|
{ |
|
} |
|
#endif /* CONFIG_PAGE_REPORTING */ |
|
#endif /*_MM_PAGE_REPORTING_H */
|
|
|