kern_mib.c (7f8a436ff29ebeb1ce2ae2434add4505d5e7e2ca) kern_mib.c (4261ed50fdaf494bd3d7fdea6ab8d9912cfc562e)
1/*-
2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Mike Karels at Berkeley Software Design, Inc.
7 *
8 * Quite extensively rewritten by Poul-Henning Kamp of the FreeBSD

--- 237 unchanged lines hidden (view full) ---

246{
247 struct prison *pr;
248 int error, level;
249
250 pr = req->td->td_ucred->cr_prison;
251
252 /*
253 * If the process is in jail, return the maximum of the global and
1/*-
2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Mike Karels at Berkeley Software Design, Inc.
7 *
8 * Quite extensively rewritten by Poul-Henning Kamp of the FreeBSD

--- 237 unchanged lines hidden (view full) ---

246{
247 struct prison *pr;
248 int error, level;
249
250 pr = req->td->td_ucred->cr_prison;
251
252 /*
253 * If the process is in jail, return the maximum of the global and
254 * local levels; otherwise, return the global level.
254 * local levels; otherwise, return the global level. Perform a
255 * lockless read since the securelevel is an interger.
255 */
256 */
256 if (pr != NULL) {
257 mtx_lock(&pr->pr_mtx);
257 if (pr != NULL)
258 level = imax(securelevel, pr->pr_securelevel);
258 level = imax(securelevel, pr->pr_securelevel);
259 mtx_unlock(&pr->pr_mtx);
260 } else
259 else
261 level = securelevel;
262 error = sysctl_handle_int(oidp, &level, 0, req);
263 if (error || !req->newptr)
264 return (error);
265 /*
266 * Permit update only if the new securelevel exceeds the
267 * global level, and local level if any.
268 */

--- 107 unchanged lines hidden --- 		260 level = securelevel;
261 error = sysctl_handle_int(oidp, &level, 0, req);
262 if (error || !req->newptr)
263 return (error);
264 /*
265 * Permit update only if the new securelevel exceeds the
266 * global level, and local level if any.
267 */

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