Differential D10439 Diff 29210 head/sys/vm/swap_pager.c

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head/sys/vm/swap_pager.c

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*		*
* @(#)swap_pager.c 8.9 (Berkeley) 3/21/94		* @(#)swap_pager.c 8.9 (Berkeley) 3/21/94
* @(#)vm_swap.c 8.5 (Berkeley) 2/17/94		* @(#)vm_swap.c 8.5 (Berkeley) 2/17/94
*/		*/

#include <sys/cdefs.h>		#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");		__FBSDID("$FreeBSD$");

		#include "opt_compat.h"
#include "opt_swap.h"		#include "opt_swap.h"
#include "opt_vm.h"		#include "opt_vm.h"

#include <sys/param.h>		#include <sys/param.h>
#include <sys/systm.h>		#include <sys/systm.h>
#include <sys/conf.h>		#include <sys/conf.h>
#include <sys/kernel.h>		#include <sys/kernel.h>
#include <sys/priv.h>		#include <sys/priv.h>
▲ Show 20 Lines • Show All 2,332 Lines • ▼ Show 20 Lines	TAILQ_FOREACH(sp, &swtailq, sw_list) {
}		}
error = 0;		error = 0;
break;		break;
}		}
mtx_unlock(&sw_dev_mtx);		mtx_unlock(&sw_dev_mtx);
return (error);		return (error);
}		}

		#if defined(COMPAT_FREEBSD11)
		#define XSWDEV_VERSION_11 1
		struct xswdev11 {
		u_int xsw_version;
		uint32_t xsw_dev;
		int xsw_flags;
		int xsw_nblks;
		int xsw_used;
		};
		#endif

static int		static int
sysctl_vm_swap_info(SYSCTL_HANDLER_ARGS)		sysctl_vm_swap_info(SYSCTL_HANDLER_ARGS)
{		{
struct xswdev xs;		struct xswdev xs;
		#if defined(COMPAT_FREEBSD11)
		struct xswdev11 xs11;
		#endif
int error;		int error;

if (arg2 != 1) /* name length */		if (arg2 != 1) /* name length */
return (EINVAL);		return (EINVAL);
error = swap_dev_info((int )arg1, &xs, NULL, 0);		error = swap_dev_info((int )arg1, &xs, NULL, 0);
if (error != 0)		if (error != 0)
return (error);		return (error);
		#if defined(COMPAT_FREEBSD11)
		if (req->oldlen == sizeof(xs11)) {
		xs11.xsw_version = XSWDEV_VERSION_11;
		xs11.xsw_dev = xs.xsw_dev; /* truncation */
		xs11.xsw_flags = xs.xsw_flags;
		xs11.xsw_nblks = xs.xsw_nblks;
		xs11.xsw_used = xs.xsw_used;
		error = SYSCTL_OUT(req, &xs11, sizeof(xs11));
		} else
		#endif
error = SYSCTL_OUT(req, &xs, sizeof(xs));		error = SYSCTL_OUT(req, &xs, sizeof(xs));
return (error);		return (error);
}		}

SYSCTL_INT(_vm, OID_AUTO, nswapdev, CTLFLAG_RD, &nswapdev, 0,		SYSCTL_INT(_vm, OID_AUTO, nswapdev, CTLFLAG_RD, &nswapdev, 0,
"Number of swap devices");		"Number of swap devices");
SYSCTL_NODE(_vm, OID_AUTO, swap_info, CTLFLAG_RD \| CTLFLAG_MPSAFE,		SYSCTL_NODE(_vm, OID_AUTO, swap_info, CTLFLAG_RD \| CTLFLAG_MPSAFE,
sysctl_vm_swap_info,		sysctl_vm_swap_info,
"Swap statistics by device");		"Swap statistics by device");
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