| vfs_bio.c (109572) | vfs_bio.c (109623) |
|---|---|
| 1/* 2 * Copyright (c) 1994,1997 John S. Dyson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice immediately at the beginning of the file, without modification, 10 * this list of conditions, and the following disclaimer. 11 * 2. Absolutely no warranty of function or purpose is made by the author 12 * John S. Dyson. 13 * | 1/* 2 * Copyright (c) 1994,1997 John S. Dyson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice immediately at the beginning of the file, without modification, 10 * this list of conditions, and the following disclaimer. 11 * 2. Absolutely no warranty of function or purpose is made by the author 12 * John S. Dyson. 13 * |
| 14 * $FreeBSD: head/sys/kern/vfs_bio.c 109572 2003-01-20 17:46:48Z dillon $ | 14 * $FreeBSD: head/sys/kern/vfs_bio.c 109623 2003-01-21 08:56:16Z alfred $ |
| 15 */ 16 17/* 18 * this file contains a new buffer I/O scheme implementing a coherent 19 * VM object and buffer cache scheme. Pains have been taken to make 20 * sure that the performance degradation associated with schemes such 21 * as this is not realized. 22 * --- 2613 unchanged lines hidden (view full) --- 2636 * We only use malloced memory on the first allocation. 2637 * and revert to page-allocated memory when the buffer 2638 * grows. 2639 */ 2640 if ( (bufmallocspace < maxbufmallocspace) && 2641 (bp->b_bufsize == 0) && 2642 (mbsize <= PAGE_SIZE/2)) { 2643 | 15 */ 16 17/* 18 * this file contains a new buffer I/O scheme implementing a coherent 19 * VM object and buffer cache scheme. Pains have been taken to make 20 * sure that the performance degradation associated with schemes such 21 * as this is not realized. 22 * --- 2613 unchanged lines hidden (view full) --- 2636 * We only use malloced memory on the first allocation. 2637 * and revert to page-allocated memory when the buffer 2638 * grows. 2639 */ 2640 if ( (bufmallocspace < maxbufmallocspace) && 2641 (bp->b_bufsize == 0) && 2642 (mbsize <= PAGE_SIZE/2)) { 2643 |
| 2644 bp->b_data = malloc(mbsize, M_BIOBUF, M_WAITOK); | 2644 bp->b_data = malloc(mbsize, M_BIOBUF, 0); |
| 2645 bp->b_bufsize = mbsize; 2646 bp->b_bcount = size; 2647 bp->b_flags |= B_MALLOC; 2648 bufmallocspace += mbsize; 2649 return 1; 2650 } 2651 origbuf = NULL; 2652 origbufsize = 0; --- 1027 unchanged lines hidden --- | 2645 bp->b_bufsize = mbsize; 2646 bp->b_bcount = size; 2647 bp->b_flags |= B_MALLOC; 2648 bufmallocspace += mbsize; 2649 return 1; 2650 } 2651 origbuf = NULL; 2652 origbufsize = 0; --- 1027 unchanged lines hidden --- |