| vfs_bio.c (35210) | vfs_bio.c (35256) |
|---|---|
| 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 * $Id: vfs_bio.c,v 1.160 1998/03/27 06:48:24 dyson Exp $ | 14 * $Id: vfs_bio.c,v 1.161 1998/04/15 17:46:30 bde Exp $ |
| 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 * --- 1635 unchanged lines hidden (view full) --- 1658 bufmallocspace += mbsize; 1659 return 1; 1660 } 1661#endif 1662 origbuf = NULL; 1663 origbufsize = 0; 1664#if !defined(NO_B_MALLOC) 1665 /* | 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 * --- 1635 unchanged lines hidden (view full) --- 1658 bufmallocspace += mbsize; 1659 return 1; 1660 } 1661#endif 1662 origbuf = NULL; 1663 origbufsize = 0; 1664#if !defined(NO_B_MALLOC) 1665 /* |
| 1666 * If the buffer is growing on it's other-than-first allocation, | 1666 * If the buffer is growing on its other-than-first allocation, |
| 1667 * then we revert to the page-allocation scheme. 1668 */ 1669 if (bp->b_flags & B_MALLOC) { 1670 origbuf = bp->b_data; 1671 origbufsize = bp->b_bufsize; 1672 bp->b_data = bp->b_kvabase; 1673 bufspace -= bp->b_bufsize; 1674 bufmallocspace -= bp->b_bufsize; --- 768 unchanged lines hidden --- | 1667 * then we revert to the page-allocation scheme. 1668 */ 1669 if (bp->b_flags & B_MALLOC) { 1670 origbuf = bp->b_data; 1671 origbufsize = bp->b_bufsize; 1672 bp->b_data = bp->b_kvabase; 1673 bufspace -= bp->b_bufsize; 1674 bufmallocspace -= bp->b_bufsize; --- 768 unchanged lines hidden --- |