2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
11 * UKERNEL OSI header file. Extends afs_osi.h.
13 * afs_osi.h includes this file, which is the only way this file should
14 * be included in a source file. This file can redefine macros declared in
18 #ifndef _OSI_MACHDEP_H_
19 #define _OSI_MACHDEP_H_
21 #include "afs/sysincludes.h"
23 #define MAX_OSI_PATH 1024
24 #define MAX_OSI_FILES 1024
25 #define MAX_OSI_LINKS 25
26 #define OSI_WAITHASH_SIZE 128 /* must be power of two */
27 #define MAX_HOSTADDR 32
31 * UKERNEL cannot trivially make use of typedef for afs_ucred_t and
32 * afs_proc_t, as in the present design, the types are already introduced
33 * with incorrect reference, so fall back to preprocessor for now
36 #define afs_ucred_t struct usr_ucred
37 #define afs_proc_t struct usr_proc
39 #define AFS_KALLOC(A) afs_osi_Alloc(A)
45 #define osi_Time() (time(NULL))
48 #define gop_lookupname(fnamep,segflg,followlink,compvpp) lookupname((fnamep),(segflg),(followlink),(compvpp))
49 #undef gop_lookupname_user
50 #define gop_lookupname_user(fnamep,segflg,followlink,compvpp) lookupname((fnamep),(segflg),(followlink),(compvpp))
52 #define osi_vnhold(avc, r) do { VN_HOLD(AFSTOV(avc)); } while(0)
55 * Global lock support.
58 extern usr_thread_t afs_global_owner;
59 extern usr_mutex_t afs_global_lock;
61 #define ISAFS_GLOCK() (usr_thread_self() == afs_global_owner)
65 usr_mutex_lock(&afs_global_lock); \
66 afs_global_owner = usr_thread_self(); \
68 #define AFS_GUNLOCK() \
71 memset(&afs_global_owner, 0, sizeof(usr_thread_t)); \
72 usr_mutex_unlock(&afs_global_lock); \
74 #define AFS_ASSERT_GLOCK() \
75 do { if (!ISAFS_GLOCK()) { osi_Panic("afs global lock not held"); } } while(0)
76 #define osi_GlockInit() \
77 usr_mutex_init(&afs_global_lock, "afs_global_lock", MUTEX_DEFAULT, NULL)
79 extern int afs_bufferpages;
81 extern int afs_suser(afs_ucred_t *credp);
83 #define setuerror(erval) get_user_struct()->u_error = (erval)
84 #define getuerror(erval) get_user_struct()->u_error
85 #define osi_curcred() get_user_struct()->u_cred
87 #define osi_procname(procname, size) strncpy(procname, "(unknown)", size)
88 #endif /* _OSI_MACHDEP_H_ */