diff options
Diffstat (limited to 'sys/sys/proc.h')
| -rw-r--r-- | sys/sys/proc.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sys/sys/proc.h b/sys/sys/proc.h index 49b1b525b3d8..c276b879aa31 100644 --- a/sys/sys/proc.h +++ b/sys/sys/proc.h @@ -36,7 +36,7 @@ * SUCH DAMAGE. * * @(#)proc.h 8.8 (Berkeley) 1/21/94 - * $Id: proc.h,v 1.17 1995/03/16 18:16:22 bde Exp $ + * $Id: proc.h,v 1.18 1995/07/13 08:48:03 davidg Exp $ */ #ifndef _SYS_PROC_H_ @@ -234,6 +234,13 @@ struct pcred { FREE(s, M_SESSION); \ } +/* hold process U-area in memory, normally for ptrace/procfs work */ +#define PHOLD(p) { \ + if ((p)->p_lock++ == 0 && ((p)->p_flag & P_INMEM) == 0) \ + faultin(p); \ +} +#define PRELE(p) (--(p)->p_lock) + extern struct proc *pidhash[]; /* In param.c. */ extern struct pgrp *pgrphash[]; /* In param.c. */ extern struct proc *curproc; /* Current running proc. */ |