| vm_radix.c (249502) | vm_radix.c (249605) |
|---|---|
| 1/* 2 * Copyright (c) 2013 EMC Corp. 3 * Copyright (c) 2011 Jeffrey Roberson <jeff@freebsd.org> 4 * Copyright (c) 2008 Mayur Shardul <mayur.shardul@gmail.com> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions --- 35 unchanged lines hidden (view full) --- 44 * the number of insert and remove operations. This basically implies 45 * that optimizations supposedly helping one operation but hurting the 46 * other might be carefully evaluated. 47 * - On average not many nodes are expected to be fully populated, hence 48 * level compression may just complicate things. 49 */ 50 51#include <sys/cdefs.h> | 1/* 2 * Copyright (c) 2013 EMC Corp. 3 * Copyright (c) 2011 Jeffrey Roberson <jeff@freebsd.org> 4 * Copyright (c) 2008 Mayur Shardul <mayur.shardul@gmail.com> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions --- 35 unchanged lines hidden (view full) --- 44 * the number of insert and remove operations. This basically implies 45 * that optimizations supposedly helping one operation but hurting the 46 * other might be carefully evaluated. 47 * - On average not many nodes are expected to be fully populated, hence 48 * level compression may just complicate things. 49 */ 50 51#include <sys/cdefs.h> |
| 52__FBSDID("$FreeBSD: head/sys/vm/vm_radix.c 249502 2013-04-15 06:12:00Z alc $"); | 52__FBSDID("$FreeBSD: head/sys/vm/vm_radix.c 249605 2013-04-18 05:34:33Z alc $"); |
| 53 54#include "opt_ddb.h" 55 56#include <sys/param.h> 57#include <sys/systm.h> 58#include <sys/kernel.h> 59#include <sys/vmmeter.h> 60 --- 294 unchanged lines hidden (view full) --- 355} 356 357/* 358 * Pre-allocate intermediate nodes from the UMA slab zone. 359 */ 360static void 361vm_radix_prealloc(void *arg __unused) 362{ | 53 54#include "opt_ddb.h" 55 56#include <sys/param.h> 57#include <sys/systm.h> 58#include <sys/kernel.h> 59#include <sys/vmmeter.h> 60 --- 294 unchanged lines hidden (view full) --- 355} 356 357/* 358 * Pre-allocate intermediate nodes from the UMA slab zone. 359 */ 360static void 361vm_radix_prealloc(void *arg __unused) 362{ |
| 363 int nodes; |
|
| 363 | 364 |
| 364 if (!uma_zone_reserve_kva(vm_radix_node_zone, cnt.v_page_count)) | 365 /* 366 * Calculate the number of reserved nodes, discounting the pages that 367 * are needed to store them. 368 */ 369 nodes = ((vm_paddr_t)cnt.v_page_count * PAGE_SIZE) / (PAGE_SIZE + 370 sizeof(struct vm_radix_node)); 371 if (!uma_zone_reserve_kva(vm_radix_node_zone, nodes)) |
| 365 panic("%s: unable to create new zone", __func__); | 372 panic("%s: unable to create new zone", __func__); |
| 366 uma_prealloc(vm_radix_node_zone, cnt.v_page_count); | 373 uma_prealloc(vm_radix_node_zone, nodes); |
| 367} 368SYSINIT(vm_radix_prealloc, SI_SUB_KMEM, SI_ORDER_SECOND, vm_radix_prealloc, 369 NULL); 370 371/* 372 * Initialize the UMA slab zone. 373 * Until vm_radix_prealloc() is called, the zone will be served by the 374 * UMA boot-time pre-allocated pool of pages. --- 409 unchanged lines hidden --- | 374} 375SYSINIT(vm_radix_prealloc, SI_SUB_KMEM, SI_ORDER_SECOND, vm_radix_prealloc, 376 NULL); 377 378/* 379 * Initialize the UMA slab zone. 380 * Until vm_radix_prealloc() is called, the zone will be served by the 381 * UMA boot-time pre-allocated pool of pages. --- 409 unchanged lines hidden --- |