Aren/NetBSD
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remove unused code and add some comments.

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This commit is contained in:
yamt 2006-07-15 06:33:40 +00:00
parent 73f44d02f7
commit 96cfc7d98a
1 changed files with 9 additions and 10 deletions
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19
sys/sys/ucred.h
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@ -1,4 +1,4 @@
/* $NetBSD: ucred.h,v 1.29 2006/07/13 11:07:19 martin Exp $ */
/* $NetBSD: ucred.h,v 1.30 2006/07/15 06:33:40 yamt Exp $ */
/*
* Copyright (c) 1989, 1993
@ -34,7 +34,6 @@
#ifndef _SYS_UCRED_H_
#define _SYS_UCRED_H_
#include <sys/lock.h>
#include <sys/param.h>
/*
@ -51,7 +50,6 @@ struct uucred {
};
struct ucred {
struct simplelock cr_lock; /* mutex for ref count */
uint32_t cr_ref; /* reference count */
#define cr_startcopy cr_uid /* for dup & copy */
uid_t cr_uid; /* effective user id */
@ -61,14 +59,15 @@ struct ucred {
};
#ifdef _KERNEL
static __inline void crhold(struct ucred *cr)
{
simple_lock(&cr->cr_lock);
cr->cr_ref++;
simple_unlock(&cr->cr_lock);
}
/* flags that control when do_setres{u,g}id will do anything */
/*
* flags that control when do_setres{u,g}id will do anything
*
* ID_XXX_EQ_YYY means
* "allow modifying XXX uid to the given value if the new value of
* XXX uid (or gid) equals the current value of YYY uid (or gid)."
*/
#define ID_E_EQ_E 0x001 /* effective equals effective */
#define ID_E_EQ_R 0x002 /* effective equals real */
#define ID_E_EQ_S 0x004 /* effective equals saved */