| vm_page.h (327701) | vm_page.h (327785) |
|---|---|
| 1/*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * The Mach Operating System project at Carnegie-Mellon University. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 43 unchanged lines hidden (view full) --- 52 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 53 * School of Computer Science 54 * Carnegie Mellon University 55 * Pittsburgh PA 15213-3890 56 * 57 * any improvements or extensions that they make and grant Carnegie the 58 * rights to redistribute these changes. 59 * | 1/*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * The Mach Operating System project at Carnegie-Mellon University. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 43 unchanged lines hidden (view full) --- 52 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 53 * School of Computer Science 54 * Carnegie Mellon University 55 * Pittsburgh PA 15213-3890 56 * 57 * any improvements or extensions that they make and grant Carnegie the 58 * rights to redistribute these changes. 59 * |
| 60 * $FreeBSD: stable/11/sys/vm/vm_page.h 327701 2018-01-08 16:36:33Z markj $ | 60 * $FreeBSD: stable/11/sys/vm/vm_page.h 327785 2018-01-10 20:39:26Z markj $ |
| 61 */ 62 63/* 64 * Resident memory system definitions. 65 */ 66 67#ifndef _VM_PAGE_ 68#define _VM_PAGE_ --- 334 unchanged lines hidden (view full) --- 403 * (p) - vm_page_grab_pages() supports the flag. 404 * Bits above 15 define the count of additional pages that the caller 405 * intends to allocate. 406 */ 407#define VM_ALLOC_NORMAL 0 408#define VM_ALLOC_INTERRUPT 1 409#define VM_ALLOC_SYSTEM 2 410#define VM_ALLOC_CLASS_MASK 3 | 61 */ 62 63/* 64 * Resident memory system definitions. 65 */ 66 67#ifndef _VM_PAGE_ 68#define _VM_PAGE_ --- 334 unchanged lines hidden (view full) --- 403 * (p) - vm_page_grab_pages() supports the flag. 404 * Bits above 15 define the count of additional pages that the caller 405 * intends to allocate. 406 */ 407#define VM_ALLOC_NORMAL 0 408#define VM_ALLOC_INTERRUPT 1 409#define VM_ALLOC_SYSTEM 2 410#define VM_ALLOC_CLASS_MASK 3 |
| 411#define VM_ALLOC_WAITOK 0x0008 /* (acf) Sleep and retry */ 412#define VM_ALLOC_WAITFAIL 0x0010 /* (acf) Sleep and return error */ |
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| 411#define VM_ALLOC_WIRED 0x0020 /* (acfgp) Allocate a wired page */ 412#define VM_ALLOC_ZERO 0x0040 /* (acfgp) Allocate a prezeroed page */ 413#define VM_ALLOC_NOOBJ 0x0100 /* (acg) No associated object */ 414#define VM_ALLOC_NOBUSY 0x0200 /* (acgp) Do not excl busy the page */ 415#define VM_ALLOC_IFCACHED 0x0400 416#define VM_ALLOC_IFNOTCACHED 0x0800 417#define VM_ALLOC_IGN_SBUSY 0x1000 /* (gp) Ignore shared busy flag */ 418#define VM_ALLOC_NODUMP 0x2000 /* (ag) don't include in dump */ 419#define VM_ALLOC_SBUSY 0x4000 /* (acgp) Shared busy the page */ | 413#define VM_ALLOC_WIRED 0x0020 /* (acfgp) Allocate a wired page */ 414#define VM_ALLOC_ZERO 0x0040 /* (acfgp) Allocate a prezeroed page */ 415#define VM_ALLOC_NOOBJ 0x0100 /* (acg) No associated object */ 416#define VM_ALLOC_NOBUSY 0x0200 /* (acgp) Do not excl busy the page */ 417#define VM_ALLOC_IFCACHED 0x0400 418#define VM_ALLOC_IFNOTCACHED 0x0800 419#define VM_ALLOC_IGN_SBUSY 0x1000 /* (gp) Ignore shared busy flag */ 420#define VM_ALLOC_NODUMP 0x2000 /* (ag) don't include in dump */ 421#define VM_ALLOC_SBUSY 0x4000 /* (acgp) Shared busy the page */ |
| 420#define VM_ALLOC_NOWAIT 0x8000 /* (gp) Do not sleep */ | 422#define VM_ALLOC_NOWAIT 0x8000 /* (acfgp) Do not sleep */ |
| 421#define VM_ALLOC_COUNT_SHIFT 16 422#define VM_ALLOC_COUNT(count) ((count) << VM_ALLOC_COUNT_SHIFT) 423 424#ifdef M_NOWAIT 425static inline int 426malloc2vm_flags(int malloc_flags) 427{ 428 int pflags; 429 430 KASSERT((malloc_flags & M_USE_RESERVE) == 0 || 431 (malloc_flags & M_NOWAIT) != 0, 432 ("M_USE_RESERVE requires M_NOWAIT")); 433 pflags = (malloc_flags & M_USE_RESERVE) != 0 ? VM_ALLOC_INTERRUPT : 434 VM_ALLOC_SYSTEM; 435 if ((malloc_flags & M_ZERO) != 0) 436 pflags |= VM_ALLOC_ZERO; 437 if ((malloc_flags & M_NODUMP) != 0) 438 pflags |= VM_ALLOC_NODUMP; | 423#define VM_ALLOC_COUNT_SHIFT 16 424#define VM_ALLOC_COUNT(count) ((count) << VM_ALLOC_COUNT_SHIFT) 425 426#ifdef M_NOWAIT 427static inline int 428malloc2vm_flags(int malloc_flags) 429{ 430 int pflags; 431 432 KASSERT((malloc_flags & M_USE_RESERVE) == 0 || 433 (malloc_flags & M_NOWAIT) != 0, 434 ("M_USE_RESERVE requires M_NOWAIT")); 435 pflags = (malloc_flags & M_USE_RESERVE) != 0 ? VM_ALLOC_INTERRUPT : 436 VM_ALLOC_SYSTEM; 437 if ((malloc_flags & M_ZERO) != 0) 438 pflags |= VM_ALLOC_ZERO; 439 if ((malloc_flags & M_NODUMP) != 0) 440 pflags |= VM_ALLOC_NODUMP; |
| 441 if ((malloc_flags & M_NOWAIT)) 442 pflags |= VM_ALLOC_NOWAIT; 443 if ((malloc_flags & M_WAITOK)) 444 pflags |= VM_ALLOC_WAITOK; |
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| 439 return (pflags); 440} 441#endif 442 443/* 444 * Predicates supported by vm_page_ps_test(): 445 * 446 * PS_ALL_DIRTY is true only if the entire (super)page is dirty. --- 296 unchanged lines hidden --- | 445 return (pflags); 446} 447#endif 448 449/* 450 * Predicates supported by vm_page_ps_test(): 451 * 452 * PS_ALL_DIRTY is true only if the entire (super)page is dirty. --- 296 unchanged lines hidden --- |