Differential D34722 Diff 122104 sys/vm/vm_page.c

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sys/vm/vm_page.c

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	/*			/*
	* Resident memory management module.			* Resident memory management module.
	*/			*/

	#include <sys/cdefs.h>			#include <sys/cdefs.h>
	__FBSDID("$FreeBSD$");			__FBSDID("$FreeBSD$");

				#include "opt_bhyve_snapshot.h"
	#include "opt_vm.h"			#include "opt_vm.h"

	#include <sys/param.h>			#include <sys/param.h>
	#include <sys/systm.h>			#include <sys/systm.h>
	#include <sys/counter.h>			#include <sys/counter.h>
	#include <sys/domainset.h>			#include <sys/domainset.h>
	#include <sys/kernel.h>			#include <sys/kernel.h>
	#include <sys/limits.h>			#include <sys/limits.h>
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	*/			*/
	void			void
	vm_page_dirty_KBI(vm_page_t m)			vm_page_dirty_KBI(vm_page_t m)
	{			{

	/* Refer to this operation by its public name. */			/* Refer to this operation by its public name. */
	KASSERT(vm_page_all_valid(m), ("vm_page_dirty: page is invalid!"));			KASSERT(vm_page_all_valid(m), ("vm_page_dirty: page is invalid!"));
	m->dirty = VM_PAGE_BITS_ALL;			m->dirty = VM_PAGE_BITS_ALL;
				#ifdef BHYVE_SNAPSHOT
				m->oflags \|= VPO_VMM_DIRTY;
				#endif
	}			}

				#ifdef BHYVE_SNAPSHOT
				bool
				vm_page_test_vmm_dirty(vm_page_t m)
				{
				uint64_t value;

				VM_OBJECT_ASSERT_WLOCKED(m->object);
				vm_page_assert_busied(m);

				vm_page_test_dirty(m);

				value = m->oflags & VPO_VMM_DIRTY;
				if (value == 0 && pmap_is_modified(m))
				value = 1;

				m->oflags &= ~VPO_VMM_DIRTY;
				pmap_clear_modify(m);

				return (value != 0);
				}
				#endif

	/*			/*
	* vm_page_insert: [ internal use only ]			* vm_page_insert: [ internal use only ]
	*			*
	* Inserts the given mem entry into the object and object list.			* Inserts the given mem entry into the object and object list.
	*			*
	* The object must be locked.			* The object must be locked.
	*/			*/
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