| swap_pager.c (223825) | swap_pager.c (224582) |
|---|---|
| 1/*- 2 * Copyright (c) 1998 Matthew Dillon, 3 * Copyright (c) 1994 John S. Dyson 4 * Copyright (c) 1990 University of Utah. 5 * Copyright (c) 1982, 1986, 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by --- 53 unchanged lines hidden (view full) --- 62 * 63 * from: Utah $Hdr: swap_pager.c 1.4 91/04/30$ 64 * 65 * @(#)swap_pager.c 8.9 (Berkeley) 3/21/94 66 * @(#)vm_swap.c 8.5 (Berkeley) 2/17/94 67 */ 68 69#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 1998 Matthew Dillon, 3 * Copyright (c) 1994 John S. Dyson 4 * Copyright (c) 1990 University of Utah. 5 * Copyright (c) 1982, 1986, 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by --- 53 unchanged lines hidden (view full) --- 62 * 63 * from: Utah $Hdr: swap_pager.c 1.4 91/04/30$ 64 * 65 * @(#)swap_pager.c 8.9 (Berkeley) 3/21/94 66 * @(#)vm_swap.c 8.5 (Berkeley) 2/17/94 67 */ 68 69#include <sys/cdefs.h> |
| 70__FBSDID("$FreeBSD: head/sys/vm/swap_pager.c 223825 2011-07-06 20:06:44Z trasz $"); | 70__FBSDID("$FreeBSD: head/sys/vm/swap_pager.c 224582 2011-08-01 19:12:15Z kib $"); |
| 71 72#include "opt_swap.h" 73#include "opt_vm.h" 74 75#include <sys/param.h> 76#include <sys/systm.h> 77#include <sys/conf.h> 78#include <sys/kernel.h> --- 2281 unchanged lines hidden (view full) --- 2360 mtx_lock(&sw_dev_mtx); 2361 TAILQ_FOREACH(sp, &swtailq, sw_list) { 2362 *total += sp->sw_nblks; 2363 *used += sp->sw_used; 2364 } 2365 mtx_unlock(&sw_dev_mtx); 2366} 2367 | 71 72#include "opt_swap.h" 73#include "opt_vm.h" 74 75#include <sys/param.h> 76#include <sys/systm.h> 77#include <sys/conf.h> 78#include <sys/kernel.h> --- 2281 unchanged lines hidden (view full) --- 2360 mtx_lock(&sw_dev_mtx); 2361 TAILQ_FOREACH(sp, &swtailq, sw_list) { 2362 *total += sp->sw_nblks; 2363 *used += sp->sw_used; 2364 } 2365 mtx_unlock(&sw_dev_mtx); 2366} 2367 |
| 2368static int 2369sysctl_vm_swap_info(SYSCTL_HANDLER_ARGS) | 2368int 2369swap_dev_info(int name, struct xswdev *xs, char *devname, size_t len) |
| 2370{ | 2370{ |
| 2371 int *name = (int *)arg1; 2372 int error, n; 2373 struct xswdev xs; | |
| 2374 struct swdevt *sp; | 2371 struct swdevt *sp; |
| 2372 char *tmp_devname; 2373 int error, n; |
|
| 2375 | 2374 |
| 2376 if (arg2 != 1) /* name length */ 2377 return (EINVAL); 2378 | |
| 2379 n = 0; | 2375 n = 0; |
| 2376 error = ENOENT; |
|
| 2380 mtx_lock(&sw_dev_mtx); 2381 TAILQ_FOREACH(sp, &swtailq, sw_list) { | 2377 mtx_lock(&sw_dev_mtx); 2378 TAILQ_FOREACH(sp, &swtailq, sw_list) { |
| 2382 if (n == *name) { 2383 mtx_unlock(&sw_dev_mtx); 2384 xs.xsw_version = XSWDEV_VERSION; 2385 xs.xsw_dev = sp->sw_dev; 2386 xs.xsw_flags = sp->sw_flags; 2387 xs.xsw_nblks = sp->sw_nblks; 2388 xs.xsw_used = sp->sw_used; 2389 2390 error = SYSCTL_OUT(req, &xs, sizeof(xs)); 2391 return (error); | 2379 if (n != name) { 2380 n++; 2381 continue; |
| 2392 } | 2382 } |
| 2393 n++; | 2383 xs->xsw_version = XSWDEV_VERSION; 2384 xs->xsw_dev = sp->sw_dev; 2385 xs->xsw_flags = sp->sw_flags; 2386 xs->xsw_nblks = sp->sw_nblks; 2387 xs->xsw_used = sp->sw_used; 2388 if (devname != NULL) { 2389 if (vn_isdisk(sp->sw_vp, NULL)) 2390 tmp_devname = sp->sw_vp->v_rdev->si_name; 2391 else 2392 tmp_devname = "[file]"; 2393 strncpy(devname, tmp_devname, len); 2394 } 2395 error = 0; 2396 break; |
| 2394 } 2395 mtx_unlock(&sw_dev_mtx); | 2397 } 2398 mtx_unlock(&sw_dev_mtx); |
| 2396 return (ENOENT); | 2399 return (error); |
| 2397} 2398 | 2400} 2401 |
| 2402static int 2403sysctl_vm_swap_info(SYSCTL_HANDLER_ARGS) 2404{ 2405 struct xswdev xs; 2406 int error; 2407 2408 if (arg2 != 1) /* name length */ 2409 return (EINVAL); 2410 error = swap_dev_info(*(int *)arg1, &xs, NULL, 0); 2411 if (error != 0) 2412 return (error); 2413 error = SYSCTL_OUT(req, &xs, sizeof(xs)); 2414 return (error); 2415} 2416 |
|
| 2399SYSCTL_INT(_vm, OID_AUTO, nswapdev, CTLFLAG_RD, &nswapdev, 0, 2400 "Number of swap devices"); 2401SYSCTL_NODE(_vm, OID_AUTO, swap_info, CTLFLAG_RD, sysctl_vm_swap_info, 2402 "Swap statistics by device"); 2403 2404/* 2405 * vmspace_swap_count() - count the approximate swap usage in pages for a 2406 * vmspace. --- 281 unchanged lines hidden --- | 2417SYSCTL_INT(_vm, OID_AUTO, nswapdev, CTLFLAG_RD, &nswapdev, 0, 2418 "Number of swap devices"); 2419SYSCTL_NODE(_vm, OID_AUTO, swap_info, CTLFLAG_RD, sysctl_vm_swap_info, 2420 "Swap statistics by device"); 2421 2422/* 2423 * vmspace_swap_count() - count the approximate swap usage in pages for a 2424 * vmspace. --- 281 unchanged lines hidden --- |