include/xen/mem-reservation.h

Source file repositories/reference/linux-study-clean/include/xen/mem-reservation.h

File Facts

System
Linux kernel
Corpus path
include/xen/mem-reservation.h
Extension
.h
Size
1463 bytes
Lines
61
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _XENMEM_RESERVATION_H
#define _XENMEM_RESERVATION_H

#include <linux/highmem.h>

#include <xen/page.h>

extern bool xen_scrub_pages;

static inline void xenmem_reservation_scrub_page(struct page *page)
{
	if (xen_scrub_pages)
		clear_highpage(page);
}

#ifdef CONFIG_XEN_HAVE_PVMMU
void __xenmem_reservation_va_mapping_update(unsigned long count,
					    struct page **pages,
					    xen_pfn_t *frames);

void __xenmem_reservation_va_mapping_reset(unsigned long count,
					   struct page **pages);
#endif

static inline void xenmem_reservation_va_mapping_update(unsigned long count,
							struct page **pages,
							xen_pfn_t *frames)
{
#ifdef CONFIG_XEN_HAVE_PVMMU
	if (xen_pv_domain())
		__xenmem_reservation_va_mapping_update(count, pages, frames);
#endif
}

static inline void xenmem_reservation_va_mapping_reset(unsigned long count,
						       struct page **pages)
{
#ifdef CONFIG_XEN_HAVE_PVMMU
	if (xen_pv_domain())
		__xenmem_reservation_va_mapping_reset(count, pages);
#endif
}

int xenmem_reservation_increase(int count, xen_pfn_t *frames);

int xenmem_reservation_decrease(int count, xen_pfn_t *frames);

#endif

Annotation

Implementation Notes