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Diffstat (limited to 'fs/nfsd/nfssvc.c')
-rw-r--r--fs/nfsd/nfssvc.c93
1 files changed, 50 insertions, 43 deletions
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 0339b4ddfa3b..140e3a2d1b9f 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -117,6 +117,32 @@ struct svc_program nfsd_program = {
117 117
118}; 118};
119 119
120int nfsd_vers(int vers, enum vers_op change)
121{
122 if (vers < NFSD_MINVERS || vers >= NFSD_NRVERS)
123 return -1;
124 switch(change) {
125 case NFSD_SET:
126 nfsd_versions[vers] = nfsd_version[vers];
127 break;
128#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
129 if (vers < NFSD_ACL_NRVERS)
130 nfsd_acl_version[vers] = nfsd_acl_version[vers];
131#endif
132 case NFSD_CLEAR:
133 nfsd_versions[vers] = NULL;
134#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
135 if (vers < NFSD_ACL_NRVERS)
136 nfsd_acl_version[vers] = NULL;
137#endif
138 break;
139 case NFSD_TEST:
140 return nfsd_versions[vers] != NULL;
141 case NFSD_AVAIL:
142 return nfsd_version[vers] != NULL;
143 }
144 return 0;
145}
120/* 146/*
121 * Maximum number of nfsd processes 147 * Maximum number of nfsd processes
122 */ 148 */
@@ -147,16 +173,36 @@ static void nfsd_last_thread(struct svc_serv *serv)
147 nfsd_export_flush(); 173 nfsd_export_flush();
148 } 174 }
149} 175}
176
177void nfsd_reset_versions(void)
178{
179 int found_one = 0;
180 int i;
181
182 for (i = NFSD_MINVERS; i < NFSD_NRVERS; i++) {
183 if (nfsd_program.pg_vers[i])
184 found_one = 1;
185 }
186
187 if (!found_one) {
188 for (i = NFSD_MINVERS; i < NFSD_NRVERS; i++)
189 nfsd_program.pg_vers[i] = nfsd_version[i];
190#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
191 for (i = NFSD_ACL_MINVERS; i < NFSD_ACL_NRVERS; i++)
192 nfsd_acl_program.pg_vers[i] =
193 nfsd_acl_version[i];
194#endif
195 }
196}
197
150int 198int
151nfsd_svc(unsigned short port, int nrservs) 199nfsd_svc(unsigned short port, int nrservs)
152{ 200{
153 int error; 201 int error;
154 int found_one, i;
155 struct list_head *victim; 202 struct list_head *victim;
156 203
157 lock_kernel(); 204 lock_kernel();
158 dprintk("nfsd: creating service: vers 0x%x\n", 205 dprintk("nfsd: creating service\n");
159 nfsd_versbits);
160 error = -EINVAL; 206 error = -EINVAL;
161 if (nrservs <= 0) 207 if (nrservs <= 0)
162 nrservs = 0; 208 nrservs = 0;
@@ -171,46 +217,7 @@ nfsd_svc(unsigned short port, int nrservs)
171 if (error<0) 217 if (error<0)
172 goto out; 218 goto out;
173 if (!nfsd_serv) { 219 if (!nfsd_serv) {
174 /* 220 nfsd_reset_versions();
175 * Use the nfsd_ctlbits to define which
176 * versions that will be advertised.
177 * If nfsd_ctlbits doesn't list any version,
178 * export them all.
179 */
180 found_one = 0;
181
182 for (i = NFSD_MINVERS; i < NFSD_NRVERS; i++) {
183 if (NFSCTL_VERISSET(nfsd_versbits, i)) {
184 nfsd_program.pg_vers[i] = nfsd_version[i];
185 found_one = 1;
186 } else
187 nfsd_program.pg_vers[i] = NULL;
188 }
189
190 if (!found_one) {
191 for (i = NFSD_MINVERS; i < NFSD_NRVERS; i++)
192 nfsd_program.pg_vers[i] = nfsd_version[i];
193 }
194
195
196#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
197 found_one = 0;
198
199 for (i = NFSD_ACL_MINVERS; i < NFSD_ACL_NRVERS; i++) {
200 if (NFSCTL_VERISSET(nfsd_versbits, i)) {
201 nfsd_acl_program.pg_vers[i] =
202 nfsd_acl_version[i];
203 found_one = 1;
204 } else
205 nfsd_acl_program.pg_vers[i] = NULL;
206 }
207
208 if (!found_one) {
209 for (i = NFSD_ACL_MINVERS; i < NFSD_ACL_NRVERS; i++)
210 nfsd_acl_program.pg_vers[i] =
211 nfsd_acl_version[i];
212 }
213#endif
214 221
215 atomic_set(&nfsd_busy, 0); 222 atomic_set(&nfsd_busy, 0);
216 error = -ENOMEM; 223 error = -ENOMEM;