| subr_devstat.c (62454) | subr_devstat.c (62573) |
|---|---|
| 1/* 2 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry. 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 --- 11 unchanged lines hidden (view full) --- 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * | 1/* 2 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry. 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 --- 11 unchanged lines hidden (view full) --- 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * |
| 28 * $FreeBSD: head/sys/kern/subr_devstat.c 62454 2000-07-03 09:35:31Z phk $ | 28 * $FreeBSD: head/sys/kern/subr_devstat.c 62573 2000-07-04 11:25:35Z phk $ |
| 29 */ 30 31#include <sys/param.h> 32#include <sys/kernel.h> 33#include <sys/systm.h> 34#include <sys/bio.h> 35#include <sys/sysctl.h> 36 --- 219 unchanged lines hidden (view full) --- 256 * that the generation number the user gets corresponds with the data the 257 * user gets. If the user makes a separate sysctl call to get the 258 * generation, and then a sysctl call to get the device statistics, the 259 * device list could have changed in that brief period of time. By 260 * supplying the generation number along with the statistics output, we can 261 * guarantee that the generation number and the statistics match up. 262 */ 263static int | 29 */ 30 31#include <sys/param.h> 32#include <sys/kernel.h> 33#include <sys/systm.h> 34#include <sys/bio.h> 35#include <sys/sysctl.h> 36 --- 219 unchanged lines hidden (view full) --- 256 * that the generation number the user gets corresponds with the data the 257 * user gets. If the user makes a separate sysctl call to get the 258 * generation, and then a sysctl call to get the device statistics, the 259 * device list could have changed in that brief period of time. By 260 * supplying the generation number along with the statistics output, we can 261 * guarantee that the generation number and the statistics match up. 262 */ 263static int |
| 264sysctl_devstat (SYSCTL_HANDLER_ARGS) | 264sysctl_devstat(SYSCTL_HANDLER_ARGS) |
| 265{ 266 int error, i; 267 struct devstat *nds; 268 struct devstatlist *devstat_head; 269 270 if (devstat_num_devs == 0) 271 return(EINVAL); 272 --- 37 unchanged lines hidden --- | 265{ 266 int error, i; 267 struct devstat *nds; 268 struct devstatlist *devstat_head; 269 270 if (devstat_num_devs == 0) 271 return(EINVAL); 272 --- 37 unchanged lines hidden --- |