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authorLinus Torvalds <torvalds@g5.osdl.org>2006-03-25 12:18:27 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-25 12:18:27 -0500
commit53846a21c1766326bb14ce8ab6e997a0c120675d (patch)
tree37b04485e29844b4e734479181276a2f4d2447e4 /fs/lockd
parent2e9abdd9bad485970b37cd53a82f92702054984c (diff)
parent1ebbe2b20091d306453a5cf480a87e6cd28ae76f (diff)
Merge git://git.linux-nfs.org/pub/linux/nfs-2.6
* git://git.linux-nfs.org/pub/linux/nfs-2.6: (103 commits) SUNRPC,RPCSEC_GSS: spkm3--fix config dependencies SUNRPC,RPCSEC_GSS: spkm3: import contexts using NID_cast5_cbc LOCKD: Make nlmsvc_traverse_shares return void LOCKD: nlmsvc_traverse_blocks return is unused SUNRPC,RPCSEC_GSS: fix krb5 sequence numbers. NFSv4: Dont list system.nfs4_acl for filesystems that don't support it. SUNRPC,RPCSEC_GSS: remove unnecessary kmalloc of a checksum SUNRPC: Ensure rpc_call_async() always calls tk_ops->rpc_release() SUNRPC: Fix memory barriers for req->rq_received NFS: Fix a race in nfs_sync_inode() NFS: Clean up nfs_flush_list() NFS: Fix a race with PG_private and nfs_release_page() NFSv4: Ensure the callback daemon flushes signals SUNRPC: Fix a 'Busy inodes' error in rpc_pipefs NFS, NLM: Allow blocking locks to respect signals NFS: Make nfs_fhget() return appropriate error values NFSv4: Fix an oops in nfs4_fill_super lockd: blocks should hold a reference to the nlm_file NFSv4: SETCLIENTID_CONFIRM should handle NFS4ERR_DELAY/NFS4ERR_RESOURCE NFSv4: Send the delegation stateid for SETATTR calls ...
Diffstat (limited to 'fs/lockd')
-rw-r--r--fs/lockd/clntlock.c112
-rw-r--r--fs/lockd/clntproc.c317
-rw-r--r--fs/lockd/host.c12
-rw-r--r--fs/lockd/mon.c11
-rw-r--r--fs/lockd/svc4proc.c157
-rw-r--r--fs/lockd/svclock.c349
-rw-r--r--fs/lockd/svcproc.c151
-rw-r--r--fs/lockd/svcshare.c4
-rw-r--r--fs/lockd/svcsubs.c7
-rw-r--r--fs/lockd/xdr.c17
-rw-r--r--fs/lockd/xdr4.c21
11 files changed, 505 insertions, 653 deletions
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index da6354baa0b8..bce744468708 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -44,32 +44,25 @@ static LIST_HEAD(nlm_blocked);
44/* 44/*
45 * Queue up a lock for blocking so that the GRANTED request can see it 45 * Queue up a lock for blocking so that the GRANTED request can see it
46 */ 46 */
47int nlmclnt_prepare_block(struct nlm_rqst *req, struct nlm_host *host, struct file_lock *fl) 47struct nlm_wait *nlmclnt_prepare_block(struct nlm_host *host, struct file_lock *fl)
48{ 48{
49 struct nlm_wait *block; 49 struct nlm_wait *block;
50 50
51 BUG_ON(req->a_block != NULL);
52 block = kmalloc(sizeof(*block), GFP_KERNEL); 51 block = kmalloc(sizeof(*block), GFP_KERNEL);
53 if (block == NULL) 52 if (block != NULL) {
54 return -ENOMEM; 53 block->b_host = host;
55 block->b_host = host; 54 block->b_lock = fl;
56 block->b_lock = fl; 55 init_waitqueue_head(&block->b_wait);
57 init_waitqueue_head(&block->b_wait); 56 block->b_status = NLM_LCK_BLOCKED;
58 block->b_status = NLM_LCK_BLOCKED; 57 list_add(&block->b_list, &nlm_blocked);
59 58 }
60 list_add(&block->b_list, &nlm_blocked); 59 return block;
61 req->a_block = block;
62
63 return 0;
64} 60}
65 61
66void nlmclnt_finish_block(struct nlm_rqst *req) 62void nlmclnt_finish_block(struct nlm_wait *block)
67{ 63{
68 struct nlm_wait *block = req->a_block;
69
70 if (block == NULL) 64 if (block == NULL)
71 return; 65 return;
72 req->a_block = NULL;
73 list_del(&block->b_list); 66 list_del(&block->b_list);
74 kfree(block); 67 kfree(block);
75} 68}
@@ -77,15 +70,14 @@ void nlmclnt_finish_block(struct nlm_rqst *req)
77/* 70/*
78 * Block on a lock 71 * Block on a lock
79 */ 72 */
80long nlmclnt_block(struct nlm_rqst *req, long timeout) 73int nlmclnt_block(struct nlm_wait *block, struct nlm_rqst *req, long timeout)
81{ 74{
82 struct nlm_wait *block = req->a_block;
83 long ret; 75 long ret;
84 76
85 /* A borken server might ask us to block even if we didn't 77 /* A borken server might ask us to block even if we didn't
86 * request it. Just say no! 78 * request it. Just say no!
87 */ 79 */
88 if (!req->a_args.block) 80 if (block == NULL)
89 return -EAGAIN; 81 return -EAGAIN;
90 82
91 /* Go to sleep waiting for GRANT callback. Some servers seem 83 /* Go to sleep waiting for GRANT callback. Some servers seem
@@ -99,13 +91,10 @@ long nlmclnt_block(struct nlm_rqst *req, long timeout)
99 ret = wait_event_interruptible_timeout(block->b_wait, 91 ret = wait_event_interruptible_timeout(block->b_wait,
100 block->b_status != NLM_LCK_BLOCKED, 92 block->b_status != NLM_LCK_BLOCKED,
101 timeout); 93 timeout);
102 94 if (ret < 0)
103 if (block->b_status != NLM_LCK_BLOCKED) { 95 return -ERESTARTSYS;
104 req->a_res.status = block->b_status; 96 req->a_res.status = block->b_status;
105 block->b_status = NLM_LCK_BLOCKED; 97 return 0;
106 }
107
108 return ret;
109} 98}
110 99
111/* 100/*
@@ -125,7 +114,15 @@ u32 nlmclnt_grant(const struct sockaddr_in *addr, const struct nlm_lock *lock)
125 list_for_each_entry(block, &nlm_blocked, b_list) { 114 list_for_each_entry(block, &nlm_blocked, b_list) {
126 struct file_lock *fl_blocked = block->b_lock; 115 struct file_lock *fl_blocked = block->b_lock;
127 116
128 if (!nlm_compare_locks(fl_blocked, fl)) 117 if (fl_blocked->fl_start != fl->fl_start)
118 continue;
119 if (fl_blocked->fl_end != fl->fl_end)
120 continue;
121 /*
122 * Careful! The NLM server will return the 32-bit "pid" that
123 * we put on the wire: in this case the lockowner "pid".
124 */
125 if (fl_blocked->fl_u.nfs_fl.owner->pid != lock->svid)
129 continue; 126 continue;
130 if (!nlm_cmp_addr(&block->b_host->h_addr, addr)) 127 if (!nlm_cmp_addr(&block->b_host->h_addr, addr))
131 continue; 128 continue;
@@ -147,34 +144,6 @@ u32 nlmclnt_grant(const struct sockaddr_in *addr, const struct nlm_lock *lock)
147 */ 144 */
148 145
149/* 146/*
150 * Mark the locks for reclaiming.
151 * FIXME: In 2.5 we don't want to iterate through any global file_lock_list.
152 * Maintain NLM lock reclaiming lists in the nlm_host instead.
153 */
154static
155void nlmclnt_mark_reclaim(struct nlm_host *host)
156{
157 struct file_lock *fl;
158 struct inode *inode;
159 struct list_head *tmp;
160
161 list_for_each(tmp, &file_lock_list) {
162 fl = list_entry(tmp, struct file_lock, fl_link);
163
164 inode = fl->fl_file->f_dentry->d_inode;
165 if (inode->i_sb->s_magic != NFS_SUPER_MAGIC)
166 continue;
167 if (fl->fl_u.nfs_fl.owner == NULL)
168 continue;
169 if (fl->fl_u.nfs_fl.owner->host != host)
170 continue;
171 if (!(fl->fl_u.nfs_fl.flags & NFS_LCK_GRANTED))
172 continue;
173 fl->fl_u.nfs_fl.flags |= NFS_LCK_RECLAIM;
174 }
175}
176
177/*
178 * Someone has sent us an SM_NOTIFY. Ensure we bind to the new port number, 147 * Someone has sent us an SM_NOTIFY. Ensure we bind to the new port number,
179 * that we mark locks for reclaiming, and that we bump the pseudo NSM state. 148 * that we mark locks for reclaiming, and that we bump the pseudo NSM state.
180 */ 149 */
@@ -186,7 +155,12 @@ void nlmclnt_prepare_reclaim(struct nlm_host *host, u32 newstate)
186 host->h_state++; 155 host->h_state++;
187 host->h_nextrebind = 0; 156 host->h_nextrebind = 0;
188 nlm_rebind_host(host); 157 nlm_rebind_host(host);
189 nlmclnt_mark_reclaim(host); 158
159 /*
160 * Mark the locks for reclaiming.
161 */
162 list_splice_init(&host->h_granted, &host->h_reclaim);
163
190 dprintk("NLM: reclaiming locks for host %s", host->h_name); 164 dprintk("NLM: reclaiming locks for host %s", host->h_name);
191} 165}
192 166
@@ -215,9 +189,7 @@ reclaimer(void *ptr)
215{ 189{
216 struct nlm_host *host = (struct nlm_host *) ptr; 190 struct nlm_host *host = (struct nlm_host *) ptr;
217 struct nlm_wait *block; 191 struct nlm_wait *block;
218 struct list_head *tmp; 192 struct file_lock *fl, *next;
219 struct file_lock *fl;
220 struct inode *inode;
221 193
222 daemonize("%s-reclaim", host->h_name); 194 daemonize("%s-reclaim", host->h_name);
223 allow_signal(SIGKILL); 195 allow_signal(SIGKILL);
@@ -229,23 +201,13 @@ reclaimer(void *ptr)
229 201
230 /* First, reclaim all locks that have been marked. */ 202 /* First, reclaim all locks that have been marked. */
231restart: 203restart:
232 list_for_each(tmp, &file_lock_list) { 204 list_for_each_entry_safe(fl, next, &host->h_reclaim, fl_u.nfs_fl.list) {
233 fl = list_entry(tmp, struct file_lock, fl_link); 205 list_del_init(&fl->fl_u.nfs_fl.list);
234 206
235 inode = fl->fl_file->f_dentry->d_inode;
236 if (inode->i_sb->s_magic != NFS_SUPER_MAGIC)
237 continue;
238 if (fl->fl_u.nfs_fl.owner == NULL)
239 continue;
240 if (fl->fl_u.nfs_fl.owner->host != host)
241 continue;
242 if (!(fl->fl_u.nfs_fl.flags & NFS_LCK_RECLAIM))
243 continue;
244
245 fl->fl_u.nfs_fl.flags &= ~NFS_LCK_RECLAIM;
246 nlmclnt_reclaim(host, fl);
247 if (signalled()) 207 if (signalled())
248 break; 208 continue;
209 if (nlmclnt_reclaim(host, fl) == 0)
210 list_add_tail(&fl->fl_u.nfs_fl.list, &host->h_granted);
249 goto restart; 211 goto restart;
250 } 212 }
251 213
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index 970b6a6aa337..f96e38155b5c 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -132,59 +132,18 @@ static void nlmclnt_setlockargs(struct nlm_rqst *req, struct file_lock *fl)
132 memcpy(&lock->fh, NFS_FH(fl->fl_file->f_dentry->d_inode), sizeof(struct nfs_fh)); 132 memcpy(&lock->fh, NFS_FH(fl->fl_file->f_dentry->d_inode), sizeof(struct nfs_fh));
133 lock->caller = system_utsname.nodename; 133 lock->caller = system_utsname.nodename;
134 lock->oh.data = req->a_owner; 134 lock->oh.data = req->a_owner;
135 lock->oh.len = sprintf(req->a_owner, "%d@%s", 135 lock->oh.len = snprintf(req->a_owner, sizeof(req->a_owner), "%u@%s",
136 current->pid, system_utsname.nodename); 136 (unsigned int)fl->fl_u.nfs_fl.owner->pid,
137 locks_copy_lock(&lock->fl, fl); 137 system_utsname.nodename);
138 lock->svid = fl->fl_u.nfs_fl.owner->pid;
139 lock->fl.fl_start = fl->fl_start;
140 lock->fl.fl_end = fl->fl_end;
141 lock->fl.fl_type = fl->fl_type;
138} 142}
139 143
140static void nlmclnt_release_lockargs(struct nlm_rqst *req) 144static void nlmclnt_release_lockargs(struct nlm_rqst *req)
141{ 145{
142 struct file_lock *fl = &req->a_args.lock.fl; 146 BUG_ON(req->a_args.lock.fl.fl_ops != NULL);
143
144 if (fl->fl_ops && fl->fl_ops->fl_release_private)
145 fl->fl_ops->fl_release_private(fl);
146}
147
148/*
149 * Initialize arguments for GRANTED call. The nlm_rqst structure
150 * has been cleared already.
151 */
152int
153nlmclnt_setgrantargs(struct nlm_rqst *call, struct nlm_lock *lock)
154{
155 locks_copy_lock(&call->a_args.lock.fl, &lock->fl);
156 memcpy(&call->a_args.lock.fh, &lock->fh, sizeof(call->a_args.lock.fh));
157 call->a_args.lock.caller = system_utsname.nodename;
158 call->a_args.lock.oh.len = lock->oh.len;
159
160 /* set default data area */
161 call->a_args.lock.oh.data = call->a_owner;
162
163 if (lock->oh.len > NLMCLNT_OHSIZE) {
164 void *data = kmalloc(lock->oh.len, GFP_KERNEL);
165 if (!data) {
166 nlmclnt_freegrantargs(call);
167 return 0;
168 }
169 call->a_args.lock.oh.data = (u8 *) data;
170 }
171
172 memcpy(call->a_args.lock.oh.data, lock->oh.data, lock->oh.len);
173 return 1;
174}
175
176void
177nlmclnt_freegrantargs(struct nlm_rqst *call)
178{
179 struct file_lock *fl = &call->a_args.lock.fl;
180 /*
181 * Check whether we allocated memory for the owner.
182 */
183 if (call->a_args.lock.oh.data != (u8 *) call->a_owner) {
184 kfree(call->a_args.lock.oh.data);
185 }
186 if (fl->fl_ops && fl->fl_ops->fl_release_private)
187 fl->fl_ops->fl_release_private(fl);
188} 147}
189 148
190/* 149/*
@@ -193,9 +152,8 @@ nlmclnt_freegrantargs(struct nlm_rqst *call)
193int 152int
194nlmclnt_proc(struct inode *inode, int cmd, struct file_lock *fl) 153nlmclnt_proc(struct inode *inode, int cmd, struct file_lock *fl)
195{ 154{
196 struct nfs_server *nfssrv = NFS_SERVER(inode);
197 struct nlm_host *host; 155 struct nlm_host *host;
198 struct nlm_rqst reqst, *call = &reqst; 156 struct nlm_rqst *call;
199 sigset_t oldset; 157 sigset_t oldset;
200 unsigned long flags; 158 unsigned long flags;
201 int status, proto, vers; 159 int status, proto, vers;
@@ -209,23 +167,17 @@ nlmclnt_proc(struct inode *inode, int cmd, struct file_lock *fl)
209 /* Retrieve transport protocol from NFS client */ 167 /* Retrieve transport protocol from NFS client */
210 proto = NFS_CLIENT(inode)->cl_xprt->prot; 168 proto = NFS_CLIENT(inode)->cl_xprt->prot;
211 169
212 if (!(host = nlmclnt_lookup_host(NFS_ADDR(inode), proto, vers))) 170 host = nlmclnt_lookup_host(NFS_ADDR(inode), proto, vers);
171 if (host == NULL)
213 return -ENOLCK; 172 return -ENOLCK;
214 173
215 /* Create RPC client handle if not there, and copy soft 174 call = nlm_alloc_call(host);
216 * and intr flags from NFS client. */ 175 if (call == NULL)
217 if (host->h_rpcclnt == NULL) { 176 return -ENOMEM;
218 struct rpc_clnt *clnt;
219 177
220 /* Bind an rpc client to this host handle (does not 178 nlmclnt_locks_init_private(fl, host);
221 * perform a portmapper lookup) */ 179 /* Set up the argument struct */
222 if (!(clnt = nlm_bind_host(host))) { 180 nlmclnt_setlockargs(call, fl);
223 status = -ENOLCK;
224 goto done;
225 }
226 clnt->cl_softrtry = nfssrv->client->cl_softrtry;
227 clnt->cl_intr = nfssrv->client->cl_intr;
228 }
229 181
230 /* Keep the old signal mask */ 182 /* Keep the old signal mask */
231 spin_lock_irqsave(&current->sighand->siglock, flags); 183 spin_lock_irqsave(&current->sighand->siglock, flags);
@@ -238,26 +190,10 @@ nlmclnt_proc(struct inode *inode, int cmd, struct file_lock *fl)
238 && (current->flags & PF_EXITING)) { 190 && (current->flags & PF_EXITING)) {
239 sigfillset(&current->blocked); /* Mask all signals */ 191 sigfillset(&current->blocked); /* Mask all signals */
240 recalc_sigpending(); 192 recalc_sigpending();
241 spin_unlock_irqrestore(&current->sighand->siglock, flags);
242 193
243 call = nlmclnt_alloc_call();
244 if (!call) {
245 status = -ENOMEM;
246 goto out_restore;
247 }
248 call->a_flags = RPC_TASK_ASYNC; 194 call->a_flags = RPC_TASK_ASYNC;
249 } else {
250 spin_unlock_irqrestore(&current->sighand->siglock, flags);
251 memset(call, 0, sizeof(*call));
252 locks_init_lock(&call->a_args.lock.fl);
253 locks_init_lock(&call->a_res.lock.fl);
254 } 195 }
255 call->a_host = host; 196 spin_unlock_irqrestore(&current->sighand->siglock, flags);
256
257 nlmclnt_locks_init_private(fl, host);
258
259 /* Set up the argument struct */
260 nlmclnt_setlockargs(call, fl);
261 197
262 if (IS_SETLK(cmd) || IS_SETLKW(cmd)) { 198 if (IS_SETLK(cmd) || IS_SETLKW(cmd)) {
263 if (fl->fl_type != F_UNLCK) { 199 if (fl->fl_type != F_UNLCK) {
@@ -270,41 +206,58 @@ nlmclnt_proc(struct inode *inode, int cmd, struct file_lock *fl)
270 else 206 else
271 status = -EINVAL; 207 status = -EINVAL;
272 208
273 out_restore: 209 fl->fl_ops->fl_release_private(fl);
210 fl->fl_ops = NULL;
211
274 spin_lock_irqsave(&current->sighand->siglock, flags); 212 spin_lock_irqsave(&current->sighand->siglock, flags);
275 current->blocked = oldset; 213 current->blocked = oldset;
276 recalc_sigpending(); 214 recalc_sigpending();
277 spin_unlock_irqrestore(&current->sighand->siglock, flags); 215 spin_unlock_irqrestore(&current->sighand->siglock, flags);
278 216
279done:
280 dprintk("lockd: clnt proc returns %d\n", status); 217 dprintk("lockd: clnt proc returns %d\n", status);
281 nlm_release_host(host);
282 return status; 218 return status;
283} 219}
284EXPORT_SYMBOL(nlmclnt_proc); 220EXPORT_SYMBOL(nlmclnt_proc);
285 221
286/* 222/*
287 * Allocate an NLM RPC call struct 223 * Allocate an NLM RPC call struct
224 *
225 * Note: the caller must hold a reference to host. In case of failure,
226 * this reference will be released.
288 */ 227 */
289struct nlm_rqst * 228struct nlm_rqst *nlm_alloc_call(struct nlm_host *host)
290nlmclnt_alloc_call(void)
291{ 229{
292 struct nlm_rqst *call; 230 struct nlm_rqst *call;
293 231
294 while (!signalled()) { 232 for(;;) {
295 call = (struct nlm_rqst *) kmalloc(sizeof(struct nlm_rqst), GFP_KERNEL); 233 call = kzalloc(sizeof(*call), GFP_KERNEL);
296 if (call) { 234 if (call != NULL) {
297 memset(call, 0, sizeof(*call));
298 locks_init_lock(&call->a_args.lock.fl); 235 locks_init_lock(&call->a_args.lock.fl);
299 locks_init_lock(&call->a_res.lock.fl); 236 locks_init_lock(&call->a_res.lock.fl);
237 call->a_host = host;
300 return call; 238 return call;
301 } 239 }
302 printk("nlmclnt_alloc_call: failed, waiting for memory\n"); 240 if (signalled())
241 break;
242 printk("nlm_alloc_call: failed, waiting for memory\n");
303 schedule_timeout_interruptible(5*HZ); 243 schedule_timeout_interruptible(5*HZ);
304 } 244 }
245 nlm_release_host(host);
305 return NULL; 246 return NULL;
306} 247}
307 248
249void nlm_release_call(struct nlm_rqst *call)
250{
251 nlm_release_host(call->a_host);
252 nlmclnt_release_lockargs(call);
253 kfree(call);
254}
255
256static void nlmclnt_rpc_release(void *data)
257{
258 return nlm_release_call(data);
259}
260
308static int nlm_wait_on_grace(wait_queue_head_t *queue) 261static int nlm_wait_on_grace(wait_queue_head_t *queue)
309{ 262{
310 DEFINE_WAIT(wait); 263 DEFINE_WAIT(wait);
@@ -401,57 +354,45 @@ in_grace_period:
401/* 354/*
402 * Generic NLM call, async version. 355 * Generic NLM call, async version.
403 */ 356 */
404int nlmsvc_async_call(struct nlm_rqst *req, u32 proc, const struct rpc_call_ops *tk_ops) 357static int __nlm_async_call(struct nlm_rqst *req, u32 proc, struct rpc_message *msg, const struct rpc_call_ops *tk_ops)
405{ 358{
406 struct nlm_host *host = req->a_host; 359 struct nlm_host *host = req->a_host;
407 struct rpc_clnt *clnt; 360 struct rpc_clnt *clnt;
408 struct rpc_message msg = { 361 int status = -ENOLCK;
409 .rpc_argp = &req->a_args,
410 .rpc_resp = &req->a_res,
411 };
412 int status;
413 362
414 dprintk("lockd: call procedure %d on %s (async)\n", 363 dprintk("lockd: call procedure %d on %s (async)\n",
415 (int)proc, host->h_name); 364 (int)proc, host->h_name);
416 365
417 /* If we have no RPC client yet, create one. */ 366 /* If we have no RPC client yet, create one. */
418 if ((clnt = nlm_bind_host(host)) == NULL) 367 clnt = nlm_bind_host(host);
419 return -ENOLCK; 368 if (clnt == NULL)
420 msg.rpc_proc = &clnt->cl_procinfo[proc]; 369 goto out_err;
370 msg->rpc_proc = &clnt->cl_procinfo[proc];
421 371
422 /* bootstrap and kick off the async RPC call */ 372 /* bootstrap and kick off the async RPC call */
423 status = rpc_call_async(clnt, &msg, RPC_TASK_ASYNC, tk_ops, req); 373 status = rpc_call_async(clnt, msg, RPC_TASK_ASYNC, tk_ops, req);
424 374 if (status == 0)
375 return 0;
376out_err:
377 nlm_release_call(req);
425 return status; 378 return status;
426} 379}
427 380
428static int nlmclnt_async_call(struct nlm_rqst *req, u32 proc, const struct rpc_call_ops *tk_ops) 381int nlm_async_call(struct nlm_rqst *req, u32 proc, const struct rpc_call_ops *tk_ops)
429{ 382{
430 struct nlm_host *host = req->a_host;
431 struct rpc_clnt *clnt;
432 struct nlm_args *argp = &req->a_args;
433 struct nlm_res *resp = &req->a_res;
434 struct rpc_message msg = { 383 struct rpc_message msg = {
435 .rpc_argp = argp, 384 .rpc_argp = &req->a_args,
436 .rpc_resp = resp, 385 .rpc_resp = &req->a_res,
437 }; 386 };
438 int status; 387 return __nlm_async_call(req, proc, &msg, tk_ops);
439 388}
440 dprintk("lockd: call procedure %d on %s (async)\n",
441 (int)proc, host->h_name);
442
443 /* If we have no RPC client yet, create one. */
444 if ((clnt = nlm_bind_host(host)) == NULL)
445 return -ENOLCK;
446 msg.rpc_proc = &clnt->cl_procinfo[proc];
447 389
448 /* Increment host refcount */ 390int nlm_async_reply(struct nlm_rqst *req, u32 proc, const struct rpc_call_ops *tk_ops)
449 nlm_get_host(host); 391{
450 /* bootstrap and kick off the async RPC call */ 392 struct rpc_message msg = {
451 status = rpc_call_async(clnt, &msg, RPC_TASK_ASYNC, tk_ops, req); 393 .rpc_argp = &req->a_res,
452 if (status < 0) 394 };
453 nlm_release_host(host); 395 return __nlm_async_call(req, proc, &msg, tk_ops);
454 return status;
455} 396}
456 397
457/* 398/*
@@ -463,36 +404,41 @@ nlmclnt_test(struct nlm_rqst *req, struct file_lock *fl)
463 int status; 404 int status;
464 405
465 status = nlmclnt_call(req, NLMPROC_TEST); 406 status = nlmclnt_call(req, NLMPROC_TEST);
466 nlmclnt_release_lockargs(req);
467 if (status < 0) 407 if (status < 0)
468 return status; 408 goto out;
469 409
470 status = req->a_res.status; 410 switch (req->a_res.status) {
471 if (status == NLM_LCK_GRANTED) { 411 case NLM_LCK_GRANTED:
472 fl->fl_type = F_UNLCK; 412 fl->fl_type = F_UNLCK;
473 } if (status == NLM_LCK_DENIED) { 413 break;
474 /* 414 case NLM_LCK_DENIED:
475 * Report the conflicting lock back to the application. 415 /*
476 */ 416 * Report the conflicting lock back to the application.
477 locks_copy_lock(fl, &req->a_res.lock.fl); 417 */
478 fl->fl_pid = 0; 418 fl->fl_start = req->a_res.lock.fl.fl_start;
479 } else { 419 fl->fl_end = req->a_res.lock.fl.fl_start;
480 return nlm_stat_to_errno(req->a_res.status); 420 fl->fl_type = req->a_res.lock.fl.fl_type;
421 fl->fl_pid = 0;
422 break;
423 default:
424 status = nlm_stat_to_errno(req->a_res.status);
481 } 425 }
482 426out:
483 return 0; 427 nlm_release_call(req);
428 return status;
484} 429}
485 430
486static void nlmclnt_locks_copy_lock(struct file_lock *new, struct file_lock *fl) 431static void nlmclnt_locks_copy_lock(struct file_lock *new, struct file_lock *fl)
487{ 432{
488 memcpy(&new->fl_u.nfs_fl, &fl->fl_u.nfs_fl, sizeof(new->fl_u.nfs_fl)); 433 new->fl_u.nfs_fl.state = fl->fl_u.nfs_fl.state;
489 nlm_get_lockowner(new->fl_u.nfs_fl.owner); 434 new->fl_u.nfs_fl.owner = nlm_get_lockowner(fl->fl_u.nfs_fl.owner);
435 list_add_tail(&new->fl_u.nfs_fl.list, &fl->fl_u.nfs_fl.owner->host->h_granted);
490} 436}
491 437
492static void nlmclnt_locks_release_private(struct file_lock *fl) 438static void nlmclnt_locks_release_private(struct file_lock *fl)
493{ 439{
440 list_del(&fl->fl_u.nfs_fl.list);
494 nlm_put_lockowner(fl->fl_u.nfs_fl.owner); 441 nlm_put_lockowner(fl->fl_u.nfs_fl.owner);
495 fl->fl_ops = NULL;
496} 442}
497 443
498static struct file_lock_operations nlmclnt_lock_ops = { 444static struct file_lock_operations nlmclnt_lock_ops = {
@@ -504,8 +450,8 @@ static void nlmclnt_locks_init_private(struct file_lock *fl, struct nlm_host *ho
504{ 450{
505 BUG_ON(fl->fl_ops != NULL); 451 BUG_ON(fl->fl_ops != NULL);
506 fl->fl_u.nfs_fl.state = 0; 452 fl->fl_u.nfs_fl.state = 0;
507 fl->fl_u.nfs_fl.flags = 0;
508 fl->fl_u.nfs_fl.owner = nlm_find_lockowner(host, fl->fl_owner); 453 fl->fl_u.nfs_fl.owner = nlm_find_lockowner(host, fl->fl_owner);
454 INIT_LIST_HEAD(&fl->fl_u.nfs_fl.list);
509 fl->fl_ops = &nlmclnt_lock_ops; 455 fl->fl_ops = &nlmclnt_lock_ops;
510} 456}
511 457
@@ -552,57 +498,52 @@ nlmclnt_lock(struct nlm_rqst *req, struct file_lock *fl)
552{ 498{
553 struct nlm_host *host = req->a_host; 499 struct nlm_host *host = req->a_host;
554 struct nlm_res *resp = &req->a_res; 500 struct nlm_res *resp = &req->a_res;
555 long timeout; 501 struct nlm_wait *block = NULL;
556 int status; 502 int status = -ENOLCK;
557 503
558 if (!host->h_monitored && nsm_monitor(host) < 0) { 504 if (!host->h_monitored && nsm_monitor(host) < 0) {
559 printk(KERN_NOTICE "lockd: failed to monitor %s\n", 505 printk(KERN_NOTICE "lockd: failed to monitor %s\n",
560 host->h_name); 506 host->h_name);
561 status = -ENOLCK;
562 goto out; 507 goto out;
563 } 508 }
564 509
565 if (req->a_args.block) { 510 block = nlmclnt_prepare_block(host, fl);
566 status = nlmclnt_prepare_block(req, host, fl);
567 if (status < 0)
568 goto out;
569 }
570 for(;;) { 511 for(;;) {
571 status = nlmclnt_call(req, NLMPROC_LOCK); 512 status = nlmclnt_call(req, NLMPROC_LOCK);
572 if (status < 0) 513 if (status < 0)
573 goto out_unblock; 514 goto out_unblock;
574 if (resp->status != NLM_LCK_BLOCKED) 515 if (!req->a_args.block)
575 break; 516 break;
576 /* Wait on an NLM blocking lock */
577 timeout = nlmclnt_block(req, NLMCLNT_POLL_TIMEOUT);
578 /* Did a reclaimer thread notify us of a server reboot? */ 517 /* Did a reclaimer thread notify us of a server reboot? */
579 if (resp->status == NLM_LCK_DENIED_GRACE_PERIOD) 518 if (resp->status == NLM_LCK_DENIED_GRACE_PERIOD)
580 continue; 519 continue;
581 if (resp->status != NLM_LCK_BLOCKED) 520 if (resp->status != NLM_LCK_BLOCKED)
582 break; 521 break;
583 if (timeout >= 0) 522 /* Wait on an NLM blocking lock */
584 continue; 523 status = nlmclnt_block(block, req, NLMCLNT_POLL_TIMEOUT);
585 /* We were interrupted. Send a CANCEL request to the server 524 /* if we were interrupted. Send a CANCEL request to the server
586 * and exit 525 * and exit
587 */ 526 */
588 status = (int)timeout; 527 if (status < 0)
589 goto out_unblock; 528 goto out_unblock;
529 if (resp->status != NLM_LCK_BLOCKED)
530 break;
590 } 531 }
591 532
592 if (resp->status == NLM_LCK_GRANTED) { 533 if (resp->status == NLM_LCK_GRANTED) {
593 fl->fl_u.nfs_fl.state = host->h_state; 534 fl->fl_u.nfs_fl.state = host->h_state;
594 fl->fl_u.nfs_fl.flags |= NFS_LCK_GRANTED;
595 fl->fl_flags |= FL_SLEEP; 535 fl->fl_flags |= FL_SLEEP;
536 /* Ensure the resulting lock will get added to granted list */
596 do_vfs_lock(fl); 537 do_vfs_lock(fl);
597 } 538 }
598 status = nlm_stat_to_errno(resp->status); 539 status = nlm_stat_to_errno(resp->status);
599out_unblock: 540out_unblock:
600 nlmclnt_finish_block(req); 541 nlmclnt_finish_block(block);
601 /* Cancel the blocked request if it is still pending */ 542 /* Cancel the blocked request if it is still pending */
602 if (resp->status == NLM_LCK_BLOCKED) 543 if (resp->status == NLM_LCK_BLOCKED)
603 nlmclnt_cancel(host, req->a_args.block, fl); 544 nlmclnt_cancel(host, req->a_args.block, fl);
604out: 545out:
605 nlmclnt_release_lockargs(req); 546 nlm_release_call(req);
606 return status; 547 return status;
607} 548}
608 549
@@ -658,10 +599,6 @@ nlmclnt_unlock(struct nlm_rqst *req, struct file_lock *fl)
658 struct nlm_res *resp = &req->a_res; 599 struct nlm_res *resp = &req->a_res;
659 int status; 600 int status;
660 601
661 /* Clean the GRANTED flag now so the lock doesn't get
662 * reclaimed while we're stuck in the unlock call. */
663 fl->fl_u.nfs_fl.flags &= ~NFS_LCK_GRANTED;
664
665 /* 602 /*
666 * Note: the server is supposed to either grant us the unlock 603 * Note: the server is supposed to either grant us the unlock
667 * request, or to deny it with NLM_LCK_DENIED_GRACE_PERIOD. In either 604 * request, or to deny it with NLM_LCK_DENIED_GRACE_PERIOD. In either
@@ -669,32 +606,24 @@ nlmclnt_unlock(struct nlm_rqst *req, struct file_lock *fl)
669 */ 606 */
670 do_vfs_lock(fl); 607 do_vfs_lock(fl);
671 608
672 if (req->a_flags & RPC_TASK_ASYNC) { 609 if (req->a_flags & RPC_TASK_ASYNC)
673 status = nlmclnt_async_call(req, NLMPROC_UNLOCK, 610 return nlm_async_call(req, NLMPROC_UNLOCK, &nlmclnt_unlock_ops);
674 &nlmclnt_unlock_ops);
675 /* Hrmf... Do the unlock early since locks_remove_posix()
676 * really expects us to free the lock synchronously */
677 if (status < 0) {
678 nlmclnt_release_lockargs(req);
679 kfree(req);
680 }
681 return status;
682 }
683 611
684 status = nlmclnt_call(req, NLMPROC_UNLOCK); 612 status = nlmclnt_call(req, NLMPROC_UNLOCK);
685 nlmclnt_release_lockargs(req);
686 if (status < 0) 613 if (status < 0)
687 return status; 614 goto out;
688 615
616 status = 0;
689 if (resp->status == NLM_LCK_GRANTED) 617 if (resp->status == NLM_LCK_GRANTED)
690 return 0; 618 goto out;
691 619
692 if (resp->status != NLM_LCK_DENIED_NOLOCKS) 620 if (resp->status != NLM_LCK_DENIED_NOLOCKS)
693 printk("lockd: unexpected unlock status: %d\n", resp->status); 621 printk("lockd: unexpected unlock status: %d\n", resp->status);
694
695 /* What to do now? I'm out of my depth... */ 622 /* What to do now? I'm out of my depth... */
696 623 status = -ENOLCK;
697 return -ENOLCK; 624out:
625 nlm_release_call(req);
626 return status;
698} 627}
699 628
700static void nlmclnt_unlock_callback(struct rpc_task *task, void *data) 629static void nlmclnt_unlock_callback(struct rpc_task *task, void *data)
@@ -716,9 +645,6 @@ static void nlmclnt_unlock_callback(struct rpc_task *task, void *data)
716 if (status != NLM_LCK_GRANTED) 645 if (status != NLM_LCK_GRANTED)
717 printk(KERN_WARNING "lockd: unexpected unlock status: %d\n", status); 646 printk(KERN_WARNING "lockd: unexpected unlock status: %d\n", status);
718die: 647die:
719 nlm_release_host(req->a_host);
720 nlmclnt_release_lockargs(req);
721 kfree(req);
722 return; 648 return;
723 retry_rebind: 649 retry_rebind:
724 nlm_rebind_host(req->a_host); 650 nlm_rebind_host(req->a_host);
@@ -728,6 +654,7 @@ die:
728 654
729static const struct rpc_call_ops nlmclnt_unlock_ops = { 655static const struct rpc_call_ops nlmclnt_unlock_ops = {
730 .rpc_call_done = nlmclnt_unlock_callback, 656 .rpc_call_done = nlmclnt_unlock_callback,
657 .rpc_release = nlmclnt_rpc_release,
731}; 658};
732 659
733/* 660/*
@@ -749,20 +676,15 @@ static int nlmclnt_cancel(struct nlm_host *host, int block, struct file_lock *fl
749 recalc_sigpending(); 676 recalc_sigpending();
750 spin_unlock_irqrestore(&current->sighand->siglock, flags); 677 spin_unlock_irqrestore(&current->sighand->siglock, flags);
751 678
752 req = nlmclnt_alloc_call(); 679 req = nlm_alloc_call(nlm_get_host(host));
753 if (!req) 680 if (!req)
754 return -ENOMEM; 681 return -ENOMEM;
755 req->a_host = host;
756 req->a_flags = RPC_TASK_ASYNC; 682 req->a_flags = RPC_TASK_ASYNC;
757 683
758 nlmclnt_setlockargs(req, fl); 684 nlmclnt_setlockargs(req, fl);
759 req->a_args.block = block; 685 req->a_args.block = block;
760 686
761 status = nlmclnt_async_call(req, NLMPROC_CANCEL, &nlmclnt_cancel_ops); 687 status = nlm_async_call(req, NLMPROC_CANCEL, &nlmclnt_cancel_ops);
762 if (status < 0) {
763 nlmclnt_release_lockargs(req);
764 kfree(req);
765 }
766 688
767 spin_lock_irqsave(&current->sighand->siglock, flags); 689 spin_lock_irqsave(&current->sighand->siglock, flags);
768 current->blocked = oldset; 690 current->blocked = oldset;
@@ -791,6 +713,7 @@ static void nlmclnt_cancel_callback(struct rpc_task *task, void *data)
791 switch (req->a_res.status) { 713 switch (req->a_res.status) {
792 case NLM_LCK_GRANTED: 714 case NLM_LCK_GRANTED:
793 case NLM_LCK_DENIED_GRACE_PERIOD: 715 case NLM_LCK_DENIED_GRACE_PERIOD:
716 case NLM_LCK_DENIED:
794 /* Everything's good */ 717 /* Everything's good */
795 break; 718 break;
796 case NLM_LCK_DENIED_NOLOCKS: 719 case NLM_LCK_DENIED_NOLOCKS:
@@ -802,9 +725,6 @@ static void nlmclnt_cancel_callback(struct rpc_task *task, void *data)
802 } 725 }
803 726
804die: 727die:
805 nlm_release_host(req->a_host);
806 nlmclnt_release_lockargs(req);
807 kfree(req);
808 return; 728 return;
809 729
810retry_cancel: 730retry_cancel:
@@ -818,6 +738,7 @@ retry_cancel:
818 738
819static const struct rpc_call_ops nlmclnt_cancel_ops = { 739static const struct rpc_call_ops nlmclnt_cancel_ops = {
820 .rpc_call_done = nlmclnt_cancel_callback, 740 .rpc_call_done = nlmclnt_cancel_callback,
741 .rpc_release = nlmclnt_rpc_release,
821}; 742};
822 743
823/* 744/*
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index 82f7a0b1d8ae..112ebf8b8dfe 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -123,6 +123,8 @@ nlm_lookup_host(int server, struct sockaddr_in *sin,
123 nlm_hosts[hash] = host; 123 nlm_hosts[hash] = host;
124 INIT_LIST_HEAD(&host->h_lockowners); 124 INIT_LIST_HEAD(&host->h_lockowners);
125 spin_lock_init(&host->h_lock); 125 spin_lock_init(&host->h_lock);
126 INIT_LIST_HEAD(&host->h_granted);
127 INIT_LIST_HEAD(&host->h_reclaim);
126 128
127 if (++nrhosts > NLM_HOST_MAX) 129 if (++nrhosts > NLM_HOST_MAX)
128 next_gc = 0; 130 next_gc = 0;
@@ -191,11 +193,12 @@ nlm_bind_host(struct nlm_host *host)
191 xprt->resvport = 1; /* NLM requires a reserved port */ 193 xprt->resvport = 1; /* NLM requires a reserved port */
192 194
193 /* Existing NLM servers accept AUTH_UNIX only */ 195 /* Existing NLM servers accept AUTH_UNIX only */
194 clnt = rpc_create_client(xprt, host->h_name, &nlm_program, 196 clnt = rpc_new_client(xprt, host->h_name, &nlm_program,
195 host->h_version, RPC_AUTH_UNIX); 197 host->h_version, RPC_AUTH_UNIX);
196 if (IS_ERR(clnt)) 198 if (IS_ERR(clnt))
197 goto forgetit; 199 goto forgetit;
198 clnt->cl_autobind = 1; /* turn on pmap queries */ 200 clnt->cl_autobind = 1; /* turn on pmap queries */
201 clnt->cl_softrtry = 1; /* All queries are soft */
199 202
200 host->h_rpcclnt = clnt; 203 host->h_rpcclnt = clnt;
201 } 204 }
@@ -242,8 +245,12 @@ void nlm_release_host(struct nlm_host *host)
242{ 245{
243 if (host != NULL) { 246 if (host != NULL) {
244 dprintk("lockd: release host %s\n", host->h_name); 247 dprintk("lockd: release host %s\n", host->h_name);
245 atomic_dec(&host->h_count);
246 BUG_ON(atomic_read(&host->h_count) < 0); 248 BUG_ON(atomic_read(&host->h_count) < 0);
249 if (atomic_dec_and_test(&host->h_count)) {
250 BUG_ON(!list_empty(&host->h_lockowners));
251 BUG_ON(!list_empty(&host->h_granted));
252 BUG_ON(!list_empty(&host->h_reclaim));
253 }
247 } 254 }
248} 255}
249 256
@@ -331,7 +338,6 @@ nlm_gc_hosts(void)
331 rpc_destroy_client(host->h_rpcclnt); 338 rpc_destroy_client(host->h_rpcclnt);
332 } 339 }
333 } 340 }
334 BUG_ON(!list_empty(&host->h_lockowners));
335 kfree(host); 341 kfree(host);
336 nrhosts--; 342 nrhosts--;
337 } 343 }
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index a89cb8aa2c88..3fc683f46b3e 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -35,6 +35,10 @@ nsm_mon_unmon(struct nlm_host *host, u32 proc, struct nsm_res *res)
35 struct rpc_clnt *clnt; 35 struct rpc_clnt *clnt;
36 int status; 36 int status;
37 struct nsm_args args; 37 struct nsm_args args;
38 struct rpc_message msg = {
39 .rpc_argp = &args,
40 .rpc_resp = res,
41 };
38 42
39 clnt = nsm_create(); 43 clnt = nsm_create();
40 if (IS_ERR(clnt)) { 44 if (IS_ERR(clnt)) {
@@ -49,7 +53,8 @@ nsm_mon_unmon(struct nlm_host *host, u32 proc, struct nsm_res *res)
49 args.proc = NLMPROC_NSM_NOTIFY; 53 args.proc = NLMPROC_NSM_NOTIFY;
50 memset(res, 0, sizeof(*res)); 54 memset(res, 0, sizeof(*res));
51 55
52 status = rpc_call(clnt, proc, &args, res, 0); 56 msg.rpc_proc = &clnt->cl_procinfo[proc];
57 status = rpc_call_sync(clnt, &msg, 0);
53 if (status < 0) 58 if (status < 0)
54 printk(KERN_DEBUG "nsm_mon_unmon: rpc failed, status=%d\n", 59 printk(KERN_DEBUG "nsm_mon_unmon: rpc failed, status=%d\n",
55 status); 60 status);
@@ -214,12 +219,16 @@ static struct rpc_procinfo nsm_procedures[] = {
214 .p_encode = (kxdrproc_t) xdr_encode_mon, 219 .p_encode = (kxdrproc_t) xdr_encode_mon,
215 .p_decode = (kxdrproc_t) xdr_decode_stat_res, 220 .p_decode = (kxdrproc_t) xdr_decode_stat_res,
216 .p_bufsiz = MAX(SM_mon_sz, SM_monres_sz) << 2, 221 .p_bufsiz = MAX(SM_mon_sz, SM_monres_sz) << 2,
222 .p_statidx = SM_MON,
223 .p_name = "MONITOR",
217 }, 224 },
218[SM_UNMON] = { 225[SM_UNMON] = {
219 .p_proc = SM_UNMON, 226 .p_proc = SM_UNMON,
220 .p_encode = (kxdrproc_t) xdr_encode_unmon, 227 .p_encode = (kxdrproc_t) xdr_encode_unmon,
221 .p_decode = (kxdrproc_t) xdr_decode_stat, 228 .p_decode = (kxdrproc_t) xdr_decode_stat,
222 .p_bufsiz = MAX(SM_mon_id_sz, SM_unmonres_sz) << 2, 229 .p_bufsiz = MAX(SM_mon_id_sz, SM_unmonres_sz) << 2,
230 .p_statidx = SM_UNMON,
231 .p_name = "UNMONITOR",
223 }, 232 },
224}; 233};
225 234
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index b10f913aa06a..a2dd9ccb9b32 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -21,10 +21,6 @@
21 21
22#define NLMDBG_FACILITY NLMDBG_CLIENT 22#define NLMDBG_FACILITY NLMDBG_CLIENT
23 23
24static u32 nlm4svc_callback(struct svc_rqst *, u32, struct nlm_res *);
25
26static const struct rpc_call_ops nlm4svc_callback_ops;
27
28/* 24/*
29 * Obtain client and file from arguments 25 * Obtain client and file from arguments
30 */ 26 */
@@ -234,83 +230,89 @@ nlm4svc_proc_granted(struct svc_rqst *rqstp, struct nlm_args *argp,
234} 230}
235 231
236/* 232/*
233 * This is the generic lockd callback for async RPC calls
234 */
235static void nlm4svc_callback_exit(struct rpc_task *task, void *data)
236{
237 dprintk("lockd: %4d callback returned %d\n", task->tk_pid,
238 -task->tk_status);
239}
240
241static void nlm4svc_callback_release(void *data)
242{
243 nlm_release_call(data);
244}
245
246static const struct rpc_call_ops nlm4svc_callback_ops = {
247 .rpc_call_done = nlm4svc_callback_exit,
248 .rpc_release = nlm4svc_callback_release,
249};
250
251/*
237 * `Async' versions of the above service routines. They aren't really, 252 * `Async' versions of the above service routines. They aren't really,
238 * because we send the callback before the reply proper. I hope this 253 * because we send the callback before the reply proper. I hope this
239 * doesn't break any clients. 254 * doesn't break any clients.
240 */ 255 */
241static int 256static int nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args *argp,
242nlm4svc_proc_test_msg(struct svc_rqst *rqstp, struct nlm_args *argp, 257 int (*func)(struct svc_rqst *, struct nlm_args *, struct nlm_res *))
243 void *resp)
244{ 258{
245 struct nlm_res res; 259 struct nlm_host *host;
246 u32 stat; 260 struct nlm_rqst *call;
261 int stat;
247 262
248 dprintk("lockd: TEST_MSG called\n"); 263 host = nlmsvc_lookup_host(rqstp);
249 memset(&res, 0, sizeof(res)); 264 if (host == NULL)
265 return rpc_system_err;
266
267 call = nlm_alloc_call(host);
268 if (call == NULL)
269 return rpc_system_err;
250 270
251 if ((stat = nlm4svc_proc_test(rqstp, argp, &res)) == 0) 271 stat = func(rqstp, argp, &call->a_res);
252 stat = nlm4svc_callback(rqstp, NLMPROC_TEST_RES, &res); 272 if (stat != 0) {
253 return stat; 273 nlm_release_call(call);
274 return stat;
275 }
276
277 call->a_flags = RPC_TASK_ASYNC;
278 if (nlm_async_reply(call, proc, &nlm4svc_callback_ops) < 0)
279 return rpc_system_err;
280 return rpc_success;
254} 281}
255 282
256static int 283static int nlm4svc_proc_test_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
257nlm4svc_proc_lock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
258 void *resp) 284 void *resp)
259{ 285{
260 struct nlm_res res; 286 dprintk("lockd: TEST_MSG called\n");
261 u32 stat; 287 return nlm4svc_callback(rqstp, NLMPROC_TEST_RES, argp, nlm4svc_proc_test);
288}
262 289
290static int nlm4svc_proc_lock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
291 void *resp)
292{
263 dprintk("lockd: LOCK_MSG called\n"); 293 dprintk("lockd: LOCK_MSG called\n");
264 memset(&res, 0, sizeof(res)); 294 return nlm4svc_callback(rqstp, NLMPROC_LOCK_RES, argp, nlm4svc_proc_lock);
265
266 if ((stat = nlm4svc_proc_lock(rqstp, argp, &res)) == 0)
267 stat = nlm4svc_callback(rqstp, NLMPROC_LOCK_RES, &res);
268 return stat;
269} 295}
270 296
271static int 297static int nlm4svc_proc_cancel_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
272nlm4svc_proc_cancel_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
273 void *resp) 298 void *resp)
274{ 299{
275 struct nlm_res res;
276 u32 stat;
277
278 dprintk("lockd: CANCEL_MSG called\n"); 300 dprintk("lockd: CANCEL_MSG called\n");
279 memset(&res, 0, sizeof(res)); 301 return nlm4svc_callback(rqstp, NLMPROC_CANCEL_RES, argp, nlm4svc_proc_cancel);
280
281 if ((stat = nlm4svc_proc_cancel(rqstp, argp, &res)) == 0)
282 stat = nlm4svc_callback(rqstp, NLMPROC_CANCEL_RES, &res);
283 return stat;
284} 302}
285 303
286static int 304static int nlm4svc_proc_unlock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
287nlm4svc_proc_unlock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
288 void *resp) 305 void *resp)
289{ 306{
290 struct nlm_res res;
291 u32 stat;
292
293 dprintk("lockd: UNLOCK_MSG called\n"); 307 dprintk("lockd: UNLOCK_MSG called\n");
294 memset(&res, 0, sizeof(res)); 308 return nlm4svc_callback(rqstp, NLMPROC_UNLOCK_RES, argp, nlm4svc_proc_unlock);
295
296 if ((stat = nlm4svc_proc_unlock(rqstp, argp, &res)) == 0)
297 stat = nlm4svc_callback(rqstp, NLMPROC_UNLOCK_RES, &res);
298 return stat;
299} 309}
300 310
301static int 311static int nlm4svc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
302nlm4svc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
303 void *resp) 312 void *resp)
304{ 313{
305 struct nlm_res res;
306 u32 stat;
307
308 dprintk("lockd: GRANTED_MSG called\n"); 314 dprintk("lockd: GRANTED_MSG called\n");
309 memset(&res, 0, sizeof(res)); 315 return nlm4svc_callback(rqstp, NLMPROC_GRANTED_RES, argp, nlm4svc_proc_granted);
310
311 if ((stat = nlm4svc_proc_granted(rqstp, argp, &res)) == 0)
312 stat = nlm4svc_callback(rqstp, NLMPROC_GRANTED_RES, &res);
313 return stat;
314} 316}
315 317
316/* 318/*
@@ -472,55 +474,6 @@ nlm4svc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res *argp,
472 474
473 475
474/* 476/*
475 * This is the generic lockd callback for async RPC calls
476 */
477static u32
478nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_res *resp)
479{
480 struct nlm_host *host;
481 struct nlm_rqst *call;
482
483 if (!(call = nlmclnt_alloc_call()))
484 return rpc_system_err;
485
486 host = nlmclnt_lookup_host(&rqstp->rq_addr,
487 rqstp->rq_prot, rqstp->rq_vers);
488 if (!host) {
489 kfree(call);
490 return rpc_system_err;
491 }
492
493 call->a_flags = RPC_TASK_ASYNC;
494 call->a_host = host;
495 memcpy(&call->a_args, resp, sizeof(*resp));
496
497 if (nlmsvc_async_call(call, proc, &nlm4svc_callback_ops) < 0)
498 goto error;
499
500 return rpc_success;
501 error:
502 kfree(call);
503 nlm_release_host(host);
504 return rpc_system_err;
505}
506
507static void nlm4svc_callback_exit(struct rpc_task *task, void *data)
508{
509 struct nlm_rqst *call = data;
510
511 if (task->tk_status < 0) {
512 dprintk("lockd: %4d callback failed (errno = %d)\n",
513 task->tk_pid, -task->tk_status);
514 }
515 nlm_release_host(call->a_host);
516 kfree(call);
517}
518
519static const struct rpc_call_ops nlm4svc_callback_ops = {
520 .rpc_call_done = nlm4svc_callback_exit,
521};
522
523/*
524 * NLM Server procedures. 477 * NLM Server procedures.
525 */ 478 */
526 479
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index 9cfced65d4a2..d2b66bad7d50 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -39,9 +39,12 @@
39#define nlm_deadlock nlm_lck_denied 39#define nlm_deadlock nlm_lck_denied
40#endif 40#endif
41 41
42static void nlmsvc_release_block(struct nlm_block *block);
42static void nlmsvc_insert_block(struct nlm_block *block, unsigned long); 43static void nlmsvc_insert_block(struct nlm_block *block, unsigned long);
43static int nlmsvc_remove_block(struct nlm_block *block); 44static int nlmsvc_remove_block(struct nlm_block *block);
44 45
46static int nlmsvc_setgrantargs(struct nlm_rqst *call, struct nlm_lock *lock);
47static void nlmsvc_freegrantargs(struct nlm_rqst *call);
45static const struct rpc_call_ops nlmsvc_grant_ops; 48static const struct rpc_call_ops nlmsvc_grant_ops;
46 49
47/* 50/*
@@ -58,6 +61,7 @@ nlmsvc_insert_block(struct nlm_block *block, unsigned long when)
58 struct nlm_block **bp, *b; 61 struct nlm_block **bp, *b;
59 62
60 dprintk("lockd: nlmsvc_insert_block(%p, %ld)\n", block, when); 63 dprintk("lockd: nlmsvc_insert_block(%p, %ld)\n", block, when);
64 kref_get(&block->b_count);
61 if (block->b_queued) 65 if (block->b_queued)
62 nlmsvc_remove_block(block); 66 nlmsvc_remove_block(block);
63 bp = &nlm_blocked; 67 bp = &nlm_blocked;
@@ -90,6 +94,7 @@ nlmsvc_remove_block(struct nlm_block *block)
90 if (b == block) { 94 if (b == block) {
91 *bp = block->b_next; 95 *bp = block->b_next;
92 block->b_queued = 0; 96 block->b_queued = 0;
97 nlmsvc_release_block(block);
93 return 1; 98 return 1;
94 } 99 }
95 } 100 }
@@ -98,11 +103,10 @@ nlmsvc_remove_block(struct nlm_block *block)
98} 103}
99 104
100/* 105/*
101 * Find a block for a given lock and optionally remove it from 106 * Find a block for a given lock
102 * the list.
103 */ 107 */
104static struct nlm_block * 108static struct nlm_block *
105nlmsvc_lookup_block(struct nlm_file *file, struct nlm_lock *lock, int remove) 109nlmsvc_lookup_block(struct nlm_file *file, struct nlm_lock *lock)
106{ 110{
107 struct nlm_block **head, *block; 111 struct nlm_block **head, *block;
108 struct file_lock *fl; 112 struct file_lock *fl;
@@ -112,17 +116,14 @@ nlmsvc_lookup_block(struct nlm_file *file, struct nlm_lock *lock, int remove)
112 (long long)lock->fl.fl_start, 116 (long long)lock->fl.fl_start,
113 (long long)lock->fl.fl_end, lock->fl.fl_type); 117 (long long)lock->fl.fl_end, lock->fl.fl_type);
114 for (head = &nlm_blocked; (block = *head) != 0; head = &block->b_next) { 118 for (head = &nlm_blocked; (block = *head) != 0; head = &block->b_next) {
115 fl = &block->b_call.a_args.lock.fl; 119 fl = &block->b_call->a_args.lock.fl;
116 dprintk("lockd: check f=%p pd=%d %Ld-%Ld ty=%d cookie=%s\n", 120 dprintk("lockd: check f=%p pd=%d %Ld-%Ld ty=%d cookie=%s\n",
117 block->b_file, fl->fl_pid, 121 block->b_file, fl->fl_pid,
118 (long long)fl->fl_start, 122 (long long)fl->fl_start,
119 (long long)fl->fl_end, fl->fl_type, 123 (long long)fl->fl_end, fl->fl_type,
120 nlmdbg_cookie2a(&block->b_call.a_args.cookie)); 124 nlmdbg_cookie2a(&block->b_call->a_args.cookie));
121 if (block->b_file == file && nlm_compare_locks(fl, &lock->fl)) { 125 if (block->b_file == file && nlm_compare_locks(fl, &lock->fl)) {
122 if (remove) { 126 kref_get(&block->b_count);
123 *head = block->b_next;
124 block->b_queued = 0;
125 }
126 return block; 127 return block;
127 } 128 }
128 } 129 }
@@ -150,11 +151,13 @@ nlmsvc_find_block(struct nlm_cookie *cookie, struct sockaddr_in *sin)
150 for (block = nlm_blocked; block; block = block->b_next) { 151 for (block = nlm_blocked; block; block = block->b_next) {
151 dprintk("cookie: head of blocked queue %p, block %p\n", 152 dprintk("cookie: head of blocked queue %p, block %p\n",
152 nlm_blocked, block); 153 nlm_blocked, block);
153 if (nlm_cookie_match(&block->b_call.a_args.cookie,cookie) 154 if (nlm_cookie_match(&block->b_call->a_args.cookie,cookie)
154 && nlm_cmp_addr(sin, &block->b_host->h_addr)) 155 && nlm_cmp_addr(sin, &block->b_host->h_addr))
155 break; 156 break;
156 } 157 }
157 158
159 if (block != NULL)
160 kref_get(&block->b_count);
158 return block; 161 return block;
159} 162}
160 163
@@ -174,27 +177,30 @@ nlmsvc_create_block(struct svc_rqst *rqstp, struct nlm_file *file,
174{ 177{
175 struct nlm_block *block; 178 struct nlm_block *block;
176 struct nlm_host *host; 179 struct nlm_host *host;
177 struct nlm_rqst *call; 180 struct nlm_rqst *call = NULL;
178 181
179 /* Create host handle for callback */ 182 /* Create host handle for callback */
180 host = nlmclnt_lookup_host(&rqstp->rq_addr, 183 host = nlmsvc_lookup_host(rqstp);
181 rqstp->rq_prot, rqstp->rq_vers);
182 if (host == NULL) 184 if (host == NULL)
183 return NULL; 185 return NULL;
184 186
187 call = nlm_alloc_call(host);
188 if (call == NULL)
189 return NULL;
190
185 /* Allocate memory for block, and initialize arguments */ 191 /* Allocate memory for block, and initialize arguments */
186 if (!(block = (struct nlm_block *) kmalloc(sizeof(*block), GFP_KERNEL))) 192 block = kzalloc(sizeof(*block), GFP_KERNEL);
193 if (block == NULL)
187 goto failed; 194 goto failed;
188 memset(block, 0, sizeof(*block)); 195 kref_init(&block->b_count);
189 locks_init_lock(&block->b_call.a_args.lock.fl);
190 locks_init_lock(&block->b_call.a_res.lock.fl);
191 196
192 if (!nlmclnt_setgrantargs(&block->b_call, lock)) 197 if (!nlmsvc_setgrantargs(call, lock))
193 goto failed_free; 198 goto failed_free;
194 199
195 /* Set notifier function for VFS, and init args */ 200 /* Set notifier function for VFS, and init args */
196 block->b_call.a_args.lock.fl.fl_lmops = &nlmsvc_lock_operations; 201 call->a_args.lock.fl.fl_flags |= FL_SLEEP;
197 block->b_call.a_args.cookie = *cookie; /* see above */ 202 call->a_args.lock.fl.fl_lmops = &nlmsvc_lock_operations;
203 call->a_args.cookie = *cookie; /* see above */
198 204
199 dprintk("lockd: created block %p...\n", block); 205 dprintk("lockd: created block %p...\n", block);
200 206
@@ -202,22 +208,23 @@ nlmsvc_create_block(struct svc_rqst *rqstp, struct nlm_file *file,
202 block->b_daemon = rqstp->rq_server; 208 block->b_daemon = rqstp->rq_server;
203 block->b_host = host; 209 block->b_host = host;
204 block->b_file = file; 210 block->b_file = file;
211 file->f_count++;
205 212
206 /* Add to file's list of blocks */ 213 /* Add to file's list of blocks */
207 block->b_fnext = file->f_blocks; 214 block->b_fnext = file->f_blocks;
208 file->f_blocks = block; 215 file->f_blocks = block;
209 216
210 /* Set up RPC arguments for callback */ 217 /* Set up RPC arguments for callback */
211 call = &block->b_call; 218 block->b_call = call;
212 call->a_host = host;
213 call->a_flags = RPC_TASK_ASYNC; 219 call->a_flags = RPC_TASK_ASYNC;
220 call->a_block = block;
214 221
215 return block; 222 return block;
216 223
217failed_free: 224failed_free:
218 kfree(block); 225 kfree(block);
219failed: 226failed:
220 nlm_release_host(host); 227 nlm_release_call(call);
221 return NULL; 228 return NULL;
222} 229}
223 230
@@ -227,29 +234,26 @@ failed:
227 * It is the caller's responsibility to check whether the file 234 * It is the caller's responsibility to check whether the file
228 * can be closed hereafter. 235 * can be closed hereafter.
229 */ 236 */
230static int 237static int nlmsvc_unlink_block(struct nlm_block *block)
231nlmsvc_delete_block(struct nlm_block *block, int unlock)
232{ 238{
233 struct file_lock *fl = &block->b_call.a_args.lock.fl; 239 int status;
234 struct nlm_file *file = block->b_file; 240 dprintk("lockd: unlinking block %p...\n", block);
235 struct nlm_block **bp;
236 int status = 0;
237
238 dprintk("lockd: deleting block %p...\n", block);
239 241
240 /* Remove block from list */ 242 /* Remove block from list */
243 status = posix_unblock_lock(block->b_file->f_file, &block->b_call->a_args.lock.fl);
241 nlmsvc_remove_block(block); 244 nlmsvc_remove_block(block);
242 if (unlock) 245 return status;
243 status = posix_unblock_lock(file->f_file, fl); 246}
244 247
245 /* If the block is in the middle of a GRANT callback, 248static void nlmsvc_free_block(struct kref *kref)
246 * don't kill it yet. */ 249{
247 if (block->b_incall) { 250 struct nlm_block *block = container_of(kref, struct nlm_block, b_count);
248 nlmsvc_insert_block(block, NLM_NEVER); 251 struct nlm_file *file = block->b_file;
249 block->b_done = 1; 252 struct nlm_block **bp;
250 return status;
251 }
252 253
254 dprintk("lockd: freeing block %p...\n", block);
255
256 down(&file->f_sema);
253 /* Remove block from file's list of blocks */ 257 /* Remove block from file's list of blocks */
254 for (bp = &file->f_blocks; *bp; bp = &(*bp)->b_fnext) { 258 for (bp = &file->f_blocks; *bp; bp = &(*bp)->b_fnext) {
255 if (*bp == block) { 259 if (*bp == block) {
@@ -257,36 +261,93 @@ nlmsvc_delete_block(struct nlm_block *block, int unlock)
257 break; 261 break;
258 } 262 }
259 } 263 }
264 up(&file->f_sema);
260 265
261 if (block->b_host) 266 nlmsvc_freegrantargs(block->b_call);
262 nlm_release_host(block->b_host); 267 nlm_release_call(block->b_call);
263 nlmclnt_freegrantargs(&block->b_call); 268 nlm_release_file(block->b_file);
264 kfree(block); 269 kfree(block);
265 return status; 270}
271
272static void nlmsvc_release_block(struct nlm_block *block)
273{
274 if (block != NULL)
275 kref_put(&block->b_count, nlmsvc_free_block);
276}
277
278static void nlmsvc_act_mark(struct nlm_host *host, struct nlm_file *file)
279{
280 struct nlm_block *block;
281
282 down(&file->f_sema);
283 for (block = file->f_blocks; block != NULL; block = block->b_fnext)
284 block->b_host->h_inuse = 1;
285 up(&file->f_sema);
286}
287
288static void nlmsvc_act_unlock(struct nlm_host *host, struct nlm_file *file)
289{
290 struct nlm_block *block;
291
292restart:
293 down(&file->f_sema);
294 for (block = file->f_blocks; block != NULL; block = block->b_fnext) {
295 if (host != NULL && host != block->b_host)
296 continue;
297 if (!block->b_queued)
298 continue;
299 kref_get(&block->b_count);
300 up(&file->f_sema);
301 nlmsvc_unlink_block(block);
302 nlmsvc_release_block(block);
303 goto restart;
304 }
305 up(&file->f_sema);
266} 306}
267 307
268/* 308/*
269 * Loop over all blocks and perform the action specified. 309 * Loop over all blocks and perform the action specified.
270 * (NLM_ACT_CHECK handled by nlmsvc_inspect_file). 310 * (NLM_ACT_CHECK handled by nlmsvc_inspect_file).
271 */ 311 */
272int 312void
273nlmsvc_traverse_blocks(struct nlm_host *host, struct nlm_file *file, int action) 313nlmsvc_traverse_blocks(struct nlm_host *host, struct nlm_file *file, int action)
274{ 314{
275 struct nlm_block *block, *next; 315 if (action == NLM_ACT_MARK)
276 /* XXX: Will everything get cleaned up if we don't unlock here? */ 316 nlmsvc_act_mark(host, file);
317 else
318 nlmsvc_act_unlock(host, file);
319}
277 320
278 down(&file->f_sema); 321/*
279 for (block = file->f_blocks; block; block = next) { 322 * Initialize arguments for GRANTED call. The nlm_rqst structure
280 next = block->b_fnext; 323 * has been cleared already.
281 if (action == NLM_ACT_MARK) 324 */
282 block->b_host->h_inuse = 1; 325static int nlmsvc_setgrantargs(struct nlm_rqst *call, struct nlm_lock *lock)
283 else if (action == NLM_ACT_UNLOCK) { 326{
284 if (host == NULL || host == block->b_host) 327 locks_copy_lock(&call->a_args.lock.fl, &lock->fl);
285 nlmsvc_delete_block(block, 1); 328 memcpy(&call->a_args.lock.fh, &lock->fh, sizeof(call->a_args.lock.fh));
286 } 329 call->a_args.lock.caller = system_utsname.nodename;
330 call->a_args.lock.oh.len = lock->oh.len;
331
332 /* set default data area */
333 call->a_args.lock.oh.data = call->a_owner;
334 call->a_args.lock.svid = lock->fl.fl_pid;
335
336 if (lock->oh.len > NLMCLNT_OHSIZE) {
337 void *data = kmalloc(lock->oh.len, GFP_KERNEL);
338 if (!data)
339 return 0;
340 call->a_args.lock.oh.data = (u8 *) data;
287 } 341 }
288 up(&file->f_sema); 342
289 return 0; 343 memcpy(call->a_args.lock.oh.data, lock->oh.data, lock->oh.len);
344 return 1;
345}
346
347static void nlmsvc_freegrantargs(struct nlm_rqst *call)
348{
349 if (call->a_args.lock.oh.data != call->a_owner)
350 kfree(call->a_args.lock.oh.data);
290} 351}
291 352
292/* 353/*
@@ -297,9 +358,9 @@ u32
297nlmsvc_lock(struct svc_rqst *rqstp, struct nlm_file *file, 358nlmsvc_lock(struct svc_rqst *rqstp, struct nlm_file *file,
298 struct nlm_lock *lock, int wait, struct nlm_cookie *cookie) 359 struct nlm_lock *lock, int wait, struct nlm_cookie *cookie)
299{ 360{
300 struct file_lock *conflock; 361 struct nlm_block *block, *newblock = NULL;
301 struct nlm_block *block;
302 int error; 362 int error;
363 u32 ret;
303 364
304 dprintk("lockd: nlmsvc_lock(%s/%ld, ty=%d, pi=%d, %Ld-%Ld, bl=%d)\n", 365 dprintk("lockd: nlmsvc_lock(%s/%ld, ty=%d, pi=%d, %Ld-%Ld, bl=%d)\n",
305 file->f_file->f_dentry->d_inode->i_sb->s_id, 366 file->f_file->f_dentry->d_inode->i_sb->s_id,
@@ -310,69 +371,65 @@ nlmsvc_lock(struct svc_rqst *rqstp, struct nlm_file *file,
310 wait); 371 wait);
311 372
312 373
313 /* Get existing block (in case client is busy-waiting) */ 374 lock->fl.fl_flags &= ~FL_SLEEP;
314 block = nlmsvc_lookup_block(file, lock, 0);
315
316 lock->fl.fl_flags |= FL_LOCKD;
317
318again: 375again:
319 /* Lock file against concurrent access */ 376 /* Lock file against concurrent access */
320 down(&file->f_sema); 377 down(&file->f_sema);
378 /* Get existing block (in case client is busy-waiting) */
379 block = nlmsvc_lookup_block(file, lock);
380 if (block == NULL) {
381 if (newblock != NULL)
382 lock = &newblock->b_call->a_args.lock;
383 } else
384 lock = &block->b_call->a_args.lock;
321 385
322 if (!(conflock = posix_test_lock(file->f_file, &lock->fl))) { 386 error = posix_lock_file(file->f_file, &lock->fl);
323 error = posix_lock_file(file->f_file, &lock->fl); 387 lock->fl.fl_flags &= ~FL_SLEEP;
324 388
325 if (block) 389 dprintk("lockd: posix_lock_file returned %d\n", error);
326 nlmsvc_delete_block(block, 0);
327 up(&file->f_sema);
328 390
329 dprintk("lockd: posix_lock_file returned %d\n", -error); 391 switch(error) {
330 switch(-error) {
331 case 0: 392 case 0:
332 return nlm_granted; 393 ret = nlm_granted;
333 case EDEADLK: 394 goto out;
334 return nlm_deadlock; 395 case -EAGAIN:
335 case EAGAIN: 396 break;
336 return nlm_lck_denied; 397 case -EDEADLK:
398 ret = nlm_deadlock;
399 goto out;
337 default: /* includes ENOLCK */ 400 default: /* includes ENOLCK */
338 return nlm_lck_denied_nolocks; 401 ret = nlm_lck_denied_nolocks;
339 } 402 goto out;
340 } 403 }
341 404
342 if (!wait) { 405 ret = nlm_lck_denied;
343 up(&file->f_sema); 406 if (!wait)
344 return nlm_lck_denied; 407 goto out;
345 }
346 408
347 if (posix_locks_deadlock(&lock->fl, conflock)) { 409 ret = nlm_lck_blocked;
348 up(&file->f_sema); 410 if (block != NULL)
349 return nlm_deadlock; 411 goto out;
350 }
351 412
352 /* If we don't have a block, create and initialize it. Then 413 /* If we don't have a block, create and initialize it. Then
353 * retry because we may have slept in kmalloc. */ 414 * retry because we may have slept in kmalloc. */
354 /* We have to release f_sema as nlmsvc_create_block may try to 415 /* We have to release f_sema as nlmsvc_create_block may try to
355 * to claim it while doing host garbage collection */ 416 * to claim it while doing host garbage collection */
356 if (block == NULL) { 417 if (newblock == NULL) {
357 up(&file->f_sema); 418 up(&file->f_sema);
358 dprintk("lockd: blocking on this lock (allocating).\n"); 419 dprintk("lockd: blocking on this lock (allocating).\n");
359 if (!(block = nlmsvc_create_block(rqstp, file, lock, cookie))) 420 if (!(newblock = nlmsvc_create_block(rqstp, file, lock, cookie)))
360 return nlm_lck_denied_nolocks; 421 return nlm_lck_denied_nolocks;
361 goto again; 422 goto again;
362 } 423 }
363 424
364 /* Append to list of blocked */ 425 /* Append to list of blocked */
365 nlmsvc_insert_block(block, NLM_NEVER); 426 nlmsvc_insert_block(newblock, NLM_NEVER);
366 427out:
367 if (list_empty(&block->b_call.a_args.lock.fl.fl_block)) {
368 /* Now add block to block list of the conflicting lock
369 if we haven't done so. */
370 dprintk("lockd: blocking on this lock.\n");
371 posix_block_lock(conflock, &block->b_call.a_args.lock.fl);
372 }
373
374 up(&file->f_sema); 428 up(&file->f_sema);
375 return nlm_lck_blocked; 429 nlmsvc_release_block(newblock);
430 nlmsvc_release_block(block);
431 dprintk("lockd: nlmsvc_lock returned %u\n", ret);
432 return ret;
376} 433}
377 434
378/* 435/*
@@ -382,8 +439,6 @@ u32
382nlmsvc_testlock(struct nlm_file *file, struct nlm_lock *lock, 439nlmsvc_testlock(struct nlm_file *file, struct nlm_lock *lock,
383 struct nlm_lock *conflock) 440 struct nlm_lock *conflock)
384{ 441{
385 struct file_lock *fl;
386
387 dprintk("lockd: nlmsvc_testlock(%s/%ld, ty=%d, %Ld-%Ld)\n", 442 dprintk("lockd: nlmsvc_testlock(%s/%ld, ty=%d, %Ld-%Ld)\n",
388 file->f_file->f_dentry->d_inode->i_sb->s_id, 443 file->f_file->f_dentry->d_inode->i_sb->s_id,
389 file->f_file->f_dentry->d_inode->i_ino, 444 file->f_file->f_dentry->d_inode->i_ino,
@@ -391,13 +446,14 @@ nlmsvc_testlock(struct nlm_file *file, struct nlm_lock *lock,
391 (long long)lock->fl.fl_start, 446 (long long)lock->fl.fl_start,
392 (long long)lock->fl.fl_end); 447 (long long)lock->fl.fl_end);
393 448
394 if ((fl = posix_test_lock(file->f_file, &lock->fl)) != NULL) { 449 if (posix_test_lock(file->f_file, &lock->fl, &conflock->fl)) {
395 dprintk("lockd: conflicting lock(ty=%d, %Ld-%Ld)\n", 450 dprintk("lockd: conflicting lock(ty=%d, %Ld-%Ld)\n",
396 fl->fl_type, (long long)fl->fl_start, 451 conflock->fl.fl_type,
397 (long long)fl->fl_end); 452 (long long)conflock->fl.fl_start,
453 (long long)conflock->fl.fl_end);
398 conflock->caller = "somehost"; /* FIXME */ 454 conflock->caller = "somehost"; /* FIXME */
399 conflock->oh.len = 0; /* don't return OH info */ 455 conflock->oh.len = 0; /* don't return OH info */
400 conflock->fl = *fl; 456 conflock->svid = conflock->fl.fl_pid;
401 return nlm_lck_denied; 457 return nlm_lck_denied;
402 } 458 }
403 459
@@ -453,9 +509,12 @@ nlmsvc_cancel_blocked(struct nlm_file *file, struct nlm_lock *lock)
453 (long long)lock->fl.fl_end); 509 (long long)lock->fl.fl_end);
454 510
455 down(&file->f_sema); 511 down(&file->f_sema);
456 if ((block = nlmsvc_lookup_block(file, lock, 1)) != NULL) 512 block = nlmsvc_lookup_block(file, lock);
457 status = nlmsvc_delete_block(block, 1);
458 up(&file->f_sema); 513 up(&file->f_sema);
514 if (block != NULL) {
515 status = nlmsvc_unlink_block(block);
516 nlmsvc_release_block(block);
517 }
459 return status ? nlm_lck_denied : nlm_granted; 518 return status ? nlm_lck_denied : nlm_granted;
460} 519}
461 520
@@ -473,7 +532,7 @@ nlmsvc_notify_blocked(struct file_lock *fl)
473 532
474 dprintk("lockd: VFS unblock notification for block %p\n", fl); 533 dprintk("lockd: VFS unblock notification for block %p\n", fl);
475 for (bp = &nlm_blocked; (block = *bp) != 0; bp = &block->b_next) { 534 for (bp = &nlm_blocked; (block = *bp) != 0; bp = &block->b_next) {
476 if (nlm_compare_locks(&block->b_call.a_args.lock.fl, fl)) { 535 if (nlm_compare_locks(&block->b_call->a_args.lock.fl, fl)) {
477 nlmsvc_insert_block(block, 0); 536 nlmsvc_insert_block(block, 0);
478 svc_wake_up(block->b_daemon); 537 svc_wake_up(block->b_daemon);
479 return; 538 return;
@@ -508,17 +567,13 @@ static void
508nlmsvc_grant_blocked(struct nlm_block *block) 567nlmsvc_grant_blocked(struct nlm_block *block)
509{ 568{
510 struct nlm_file *file = block->b_file; 569 struct nlm_file *file = block->b_file;
511 struct nlm_lock *lock = &block->b_call.a_args.lock; 570 struct nlm_lock *lock = &block->b_call->a_args.lock;
512 struct file_lock *conflock;
513 int error; 571 int error;
514 572
515 dprintk("lockd: grant blocked lock %p\n", block); 573 dprintk("lockd: grant blocked lock %p\n", block);
516 574
517 /* First thing is lock the file */
518 down(&file->f_sema);
519
520 /* Unlink block request from list */ 575 /* Unlink block request from list */
521 nlmsvc_remove_block(block); 576 nlmsvc_unlink_block(block);
522 577
523 /* If b_granted is true this means we've been here before. 578 /* If b_granted is true this means we've been here before.
524 * Just retry the grant callback, possibly refreshing the RPC 579 * Just retry the grant callback, possibly refreshing the RPC
@@ -529,24 +584,21 @@ nlmsvc_grant_blocked(struct nlm_block *block)
529 } 584 }
530 585
531 /* Try the lock operation again */ 586 /* Try the lock operation again */
532 if ((conflock = posix_test_lock(file->f_file, &lock->fl)) != NULL) { 587 lock->fl.fl_flags |= FL_SLEEP;
533 /* Bummer, we blocked again */ 588 error = posix_lock_file(file->f_file, &lock->fl);
589 lock->fl.fl_flags &= ~FL_SLEEP;
590
591 switch (error) {
592 case 0:
593 break;
594 case -EAGAIN:
534 dprintk("lockd: lock still blocked\n"); 595 dprintk("lockd: lock still blocked\n");
535 nlmsvc_insert_block(block, NLM_NEVER); 596 nlmsvc_insert_block(block, NLM_NEVER);
536 posix_block_lock(conflock, &lock->fl);
537 up(&file->f_sema);
538 return; 597 return;
539 } 598 default:
540
541 /* Alright, no conflicting lock. Now lock it for real. If the
542 * following yields an error, this is most probably due to low
543 * memory. Retry the lock in a few seconds.
544 */
545 if ((error = posix_lock_file(file->f_file, &lock->fl)) < 0) {
546 printk(KERN_WARNING "lockd: unexpected error %d in %s!\n", 599 printk(KERN_WARNING "lockd: unexpected error %d in %s!\n",
547 -error, __FUNCTION__); 600 -error, __FUNCTION__);
548 nlmsvc_insert_block(block, 10 * HZ); 601 nlmsvc_insert_block(block, 10 * HZ);
549 up(&file->f_sema);
550 return; 602 return;
551 } 603 }
552 604
@@ -554,17 +606,15 @@ callback:
554 /* Lock was granted by VFS. */ 606 /* Lock was granted by VFS. */
555 dprintk("lockd: GRANTing blocked lock.\n"); 607 dprintk("lockd: GRANTing blocked lock.\n");
556 block->b_granted = 1; 608 block->b_granted = 1;
557 block->b_incall = 1;
558 609
559 /* Schedule next grant callback in 30 seconds */ 610 /* Schedule next grant callback in 30 seconds */
560 nlmsvc_insert_block(block, 30 * HZ); 611 nlmsvc_insert_block(block, 30 * HZ);
561 612
562 /* Call the client */ 613 /* Call the client */
563 nlm_get_host(block->b_call.a_host); 614 kref_get(&block->b_count);
564 if (nlmsvc_async_call(&block->b_call, NLMPROC_GRANTED_MSG, 615 if (nlm_async_call(block->b_call, NLMPROC_GRANTED_MSG,
565 &nlmsvc_grant_ops) < 0) 616 &nlmsvc_grant_ops) < 0)
566 nlm_release_host(block->b_call.a_host); 617 nlmsvc_release_block(block);
567 up(&file->f_sema);
568} 618}
569 619
570/* 620/*
@@ -578,20 +628,10 @@ callback:
578static void nlmsvc_grant_callback(struct rpc_task *task, void *data) 628static void nlmsvc_grant_callback(struct rpc_task *task, void *data)
579{ 629{
580 struct nlm_rqst *call = data; 630 struct nlm_rqst *call = data;
581 struct nlm_block *block; 631 struct nlm_block *block = call->a_block;
582 unsigned long timeout; 632 unsigned long timeout;
583 struct sockaddr_in *peer_addr = RPC_PEERADDR(task->tk_client);
584 633
585 dprintk("lockd: GRANT_MSG RPC callback\n"); 634 dprintk("lockd: GRANT_MSG RPC callback\n");
586 dprintk("callback: looking for cookie %s, host (%u.%u.%u.%u)\n",
587 nlmdbg_cookie2a(&call->a_args.cookie),
588 NIPQUAD(peer_addr->sin_addr.s_addr));
589 if (!(block = nlmsvc_find_block(&call->a_args.cookie, peer_addr))) {
590 dprintk("lockd: no block for cookie %s, host (%u.%u.%u.%u)\n",
591 nlmdbg_cookie2a(&call->a_args.cookie),
592 NIPQUAD(peer_addr->sin_addr.s_addr));
593 return;
594 }
595 635
596 /* Technically, we should down the file semaphore here. Since we 636 /* Technically, we should down the file semaphore here. Since we
597 * move the block towards the head of the queue only, no harm 637 * move the block towards the head of the queue only, no harm
@@ -608,13 +648,18 @@ static void nlmsvc_grant_callback(struct rpc_task *task, void *data)
608 } 648 }
609 nlmsvc_insert_block(block, timeout); 649 nlmsvc_insert_block(block, timeout);
610 svc_wake_up(block->b_daemon); 650 svc_wake_up(block->b_daemon);
611 block->b_incall = 0; 651}
612 652
613 nlm_release_host(call->a_host); 653void nlmsvc_grant_release(void *data)
654{
655 struct nlm_rqst *call = data;
656
657 nlmsvc_release_block(call->a_block);
614} 658}
615 659
616static const struct rpc_call_ops nlmsvc_grant_ops = { 660static const struct rpc_call_ops nlmsvc_grant_ops = {
617 .rpc_call_done = nlmsvc_grant_callback, 661 .rpc_call_done = nlmsvc_grant_callback,
662 .rpc_release = nlmsvc_grant_release,
618}; 663};
619 664
620/* 665/*
@@ -634,25 +679,17 @@ nlmsvc_grant_reply(struct svc_rqst *rqstp, struct nlm_cookie *cookie, u32 status
634 return; 679 return;
635 file = block->b_file; 680 file = block->b_file;
636 681
637 file->f_count++;
638 down(&file->f_sema);
639 block = nlmsvc_find_block(cookie, &rqstp->rq_addr);
640 if (block) { 682 if (block) {
641 if (status == NLM_LCK_DENIED_GRACE_PERIOD) { 683 if (status == NLM_LCK_DENIED_GRACE_PERIOD) {
642 /* Try again in a couple of seconds */ 684 /* Try again in a couple of seconds */
643 nlmsvc_insert_block(block, 10 * HZ); 685 nlmsvc_insert_block(block, 10 * HZ);
644 up(&file->f_sema);
645 } else { 686 } else {
646 /* Lock is now held by client, or has been rejected. 687 /* Lock is now held by client, or has been rejected.
647 * In both cases, the block should be removed. */ 688 * In both cases, the block should be removed. */
648 up(&file->f_sema); 689 nlmsvc_unlink_block(block);
649 if (status == NLM_LCK_GRANTED)
650 nlmsvc_delete_block(block, 0);
651 else
652 nlmsvc_delete_block(block, 1);
653 } 690 }
654 } 691 }
655 nlm_release_file(file); 692 nlmsvc_release_block(block);
656} 693}
657 694
658/* 695/*
@@ -675,10 +712,12 @@ nlmsvc_retry_blocked(void)
675 break; 712 break;
676 dprintk("nlmsvc_retry_blocked(%p, when=%ld, done=%d)\n", 713 dprintk("nlmsvc_retry_blocked(%p, when=%ld, done=%d)\n",
677 block, block->b_when, block->b_done); 714 block, block->b_when, block->b_done);
715 kref_get(&block->b_count);
678 if (block->b_done) 716 if (block->b_done)
679 nlmsvc_delete_block(block, 0); 717 nlmsvc_unlink_block(block);
680 else 718 else
681 nlmsvc_grant_blocked(block); 719 nlmsvc_grant_blocked(block);
720 nlmsvc_release_block(block);
682 } 721 }
683 722
684 if ((block = nlm_blocked) && block->b_when != NLM_NEVER) 723 if ((block = nlm_blocked) && block->b_when != NLM_NEVER)
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index 35681d9cf1fc..d210cf304e92 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -22,10 +22,6 @@
22 22
23#define NLMDBG_FACILITY NLMDBG_CLIENT 23#define NLMDBG_FACILITY NLMDBG_CLIENT
24 24
25static u32 nlmsvc_callback(struct svc_rqst *, u32, struct nlm_res *);
26
27static const struct rpc_call_ops nlmsvc_callback_ops;
28
29#ifdef CONFIG_LOCKD_V4 25#ifdef CONFIG_LOCKD_V4
30static u32 26static u32
31cast_to_nlm(u32 status, u32 vers) 27cast_to_nlm(u32 status, u32 vers)
@@ -262,83 +258,91 @@ nlmsvc_proc_granted(struct svc_rqst *rqstp, struct nlm_args *argp,
262} 258}
263 259
264/* 260/*
261 * This is the generic lockd callback for async RPC calls
262 */
263static void nlmsvc_callback_exit(struct rpc_task *task, void *data)
264{
265 dprintk("lockd: %4d callback returned %d\n", task->tk_pid,
266 -task->tk_status);
267}
268
269static void nlmsvc_callback_release(void *data)
270{
271 nlm_release_call(data);
272}
273
274static const struct rpc_call_ops nlmsvc_callback_ops = {
275 .rpc_call_done = nlmsvc_callback_exit,
276 .rpc_release = nlmsvc_callback_release,
277};
278
279/*
265 * `Async' versions of the above service routines. They aren't really, 280 * `Async' versions of the above service routines. They aren't really,
266 * because we send the callback before the reply proper. I hope this 281 * because we send the callback before the reply proper. I hope this
267 * doesn't break any clients. 282 * doesn't break any clients.
268 */ 283 */
269static int 284static int nlmsvc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args *argp,
270nlmsvc_proc_test_msg(struct svc_rqst *rqstp, struct nlm_args *argp, 285 int (*func)(struct svc_rqst *, struct nlm_args *, struct nlm_res *))
271 void *resp)
272{ 286{
273 struct nlm_res res; 287 struct nlm_host *host;
274 u32 stat; 288 struct nlm_rqst *call;
289 int stat;
275 290
276 dprintk("lockd: TEST_MSG called\n"); 291 host = nlmsvc_lookup_host(rqstp);
277 memset(&res, 0, sizeof(res)); 292 if (host == NULL)
293 return rpc_system_err;
278 294
279 if ((stat = nlmsvc_proc_test(rqstp, argp, &res)) == 0) 295 call = nlm_alloc_call(host);
280 stat = nlmsvc_callback(rqstp, NLMPROC_TEST_RES, &res); 296 if (call == NULL)
281 return stat; 297 return rpc_system_err;
298
299 stat = func(rqstp, argp, &call->a_res);
300 if (stat != 0) {
301 nlm_release_call(call);
302 return stat;
303 }
304
305 call->a_flags = RPC_TASK_ASYNC;
306 if (nlm_async_reply(call, proc, &nlmsvc_callback_ops) < 0)
307 return rpc_system_err;
308 return rpc_success;
282} 309}
283 310
284static int 311static int nlmsvc_proc_test_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
285nlmsvc_proc_lock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
286 void *resp) 312 void *resp)
287{ 313{
288 struct nlm_res res; 314 dprintk("lockd: TEST_MSG called\n");
289 u32 stat; 315 return nlmsvc_callback(rqstp, NLMPROC_TEST_RES, argp, nlmsvc_proc_test);
316}
290 317
318static int nlmsvc_proc_lock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
319 void *resp)
320{
291 dprintk("lockd: LOCK_MSG called\n"); 321 dprintk("lockd: LOCK_MSG called\n");
292 memset(&res, 0, sizeof(res)); 322 return nlmsvc_callback(rqstp, NLMPROC_LOCK_RES, argp, nlmsvc_proc_lock);
293
294 if ((stat = nlmsvc_proc_lock(rqstp, argp, &res)) == 0)
295 stat = nlmsvc_callback(rqstp, NLMPROC_LOCK_RES, &res);
296 return stat;
297} 323}
298 324
299static int 325static int nlmsvc_proc_cancel_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
300nlmsvc_proc_cancel_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
301 void *resp) 326 void *resp)
302{ 327{
303 struct nlm_res res;
304 u32 stat;
305
306 dprintk("lockd: CANCEL_MSG called\n"); 328 dprintk("lockd: CANCEL_MSG called\n");
307 memset(&res, 0, sizeof(res)); 329 return nlmsvc_callback(rqstp, NLMPROC_CANCEL_RES, argp, nlmsvc_proc_cancel);
308
309 if ((stat = nlmsvc_proc_cancel(rqstp, argp, &res)) == 0)
310 stat = nlmsvc_callback(rqstp, NLMPROC_CANCEL_RES, &res);
311 return stat;
312} 330}
313 331
314static int 332static int
315nlmsvc_proc_unlock_msg(struct svc_rqst *rqstp, struct nlm_args *argp, 333nlmsvc_proc_unlock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
316 void *resp) 334 void *resp)
317{ 335{
318 struct nlm_res res;
319 u32 stat;
320
321 dprintk("lockd: UNLOCK_MSG called\n"); 336 dprintk("lockd: UNLOCK_MSG called\n");
322 memset(&res, 0, sizeof(res)); 337 return nlmsvc_callback(rqstp, NLMPROC_UNLOCK_RES, argp, nlmsvc_proc_unlock);
323
324 if ((stat = nlmsvc_proc_unlock(rqstp, argp, &res)) == 0)
325 stat = nlmsvc_callback(rqstp, NLMPROC_UNLOCK_RES, &res);
326 return stat;
327} 338}
328 339
329static int 340static int
330nlmsvc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp, 341nlmsvc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
331 void *resp) 342 void *resp)
332{ 343{
333 struct nlm_res res;
334 u32 stat;
335
336 dprintk("lockd: GRANTED_MSG called\n"); 344 dprintk("lockd: GRANTED_MSG called\n");
337 memset(&res, 0, sizeof(res)); 345 return nlmsvc_callback(rqstp, NLMPROC_GRANTED_RES, argp, nlmsvc_proc_granted);
338
339 if ((stat = nlmsvc_proc_granted(rqstp, argp, &res)) == 0)
340 stat = nlmsvc_callback(rqstp, NLMPROC_GRANTED_RES, &res);
341 return stat;
342} 346}
343 347
344/* 348/*
@@ -497,55 +501,6 @@ nlmsvc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res *argp,
497} 501}
498 502
499/* 503/*
500 * This is the generic lockd callback for async RPC calls
501 */
502static u32
503nlmsvc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_res *resp)
504{
505 struct nlm_host *host;
506 struct nlm_rqst *call;
507
508 if (!(call = nlmclnt_alloc_call()))
509 return rpc_system_err;
510
511 host = nlmclnt_lookup_host(&rqstp->rq_addr,
512 rqstp->rq_prot, rqstp->rq_vers);
513 if (!host) {
514 kfree(call);
515 return rpc_system_err;
516 }
517
518 call->a_flags = RPC_TASK_ASYNC;
519 call->a_host = host;
520 memcpy(&call->a_args, resp, sizeof(*resp));
521
522 if (nlmsvc_async_call(call, proc, &nlmsvc_callback_ops) < 0)
523 goto error;
524
525 return rpc_success;
526 error:
527 nlm_release_host(host);
528 kfree(call);
529 return rpc_system_err;
530}
531
532static void nlmsvc_callback_exit(struct rpc_task *task, void *data)
533{
534 struct nlm_rqst *call = data;
535
536 if (task->tk_status < 0) {
537 dprintk("lockd: %4d callback failed (errno = %d)\n",
538 task->tk_pid, -task->tk_status);
539 }
540 nlm_release_host(call->a_host);
541 kfree(call);
542}
543
544static const struct rpc_call_ops nlmsvc_callback_ops = {
545 .rpc_call_done = nlmsvc_callback_exit,
546};
547
548/*
549 * NLM Server procedures. 504 * NLM Server procedures.
550 */ 505 */
551 506
diff --git a/fs/lockd/svcshare.c b/fs/lockd/svcshare.c
index 4943fb7836ce..27288c83da96 100644
--- a/fs/lockd/svcshare.c
+++ b/fs/lockd/svcshare.c
@@ -88,7 +88,7 @@ nlmsvc_unshare_file(struct nlm_host *host, struct nlm_file *file,
88 * Traverse all shares for a given file (and host). 88 * Traverse all shares for a given file (and host).
89 * NLM_ACT_CHECK is handled by nlmsvc_inspect_file. 89 * NLM_ACT_CHECK is handled by nlmsvc_inspect_file.
90 */ 90 */
91int 91void
92nlmsvc_traverse_shares(struct nlm_host *host, struct nlm_file *file, int action) 92nlmsvc_traverse_shares(struct nlm_host *host, struct nlm_file *file, int action)
93{ 93{
94 struct nlm_share *share, **shpp; 94 struct nlm_share *share, **shpp;
@@ -106,6 +106,4 @@ nlmsvc_traverse_shares(struct nlm_host *host, struct nlm_file *file, int action)
106 } 106 }
107 shpp = &share->s_next; 107 shpp = &share->s_next;
108 } 108 }
109
110 return 0;
111} 109}
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index 62f4a385177f..c7a6e3ae44d6 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -182,7 +182,7 @@ nlm_traverse_locks(struct nlm_host *host, struct nlm_file *file, int action)
182again: 182again:
183 file->f_locks = 0; 183 file->f_locks = 0;
184 for (fl = inode->i_flock; fl; fl = fl->fl_next) { 184 for (fl = inode->i_flock; fl; fl = fl->fl_next) {
185 if (!(fl->fl_flags & FL_LOCKD)) 185 if (fl->fl_lmops != &nlmsvc_lock_operations)
186 continue; 186 continue;
187 187
188 /* update current lock count */ 188 /* update current lock count */
@@ -224,9 +224,8 @@ nlm_inspect_file(struct nlm_host *host, struct nlm_file *file, int action)
224 if (file->f_count || file->f_blocks || file->f_shares) 224 if (file->f_count || file->f_blocks || file->f_shares)
225 return 1; 225 return 1;
226 } else { 226 } else {
227 if (nlmsvc_traverse_blocks(host, file, action) 227 nlmsvc_traverse_blocks(host, file, action);
228 || nlmsvc_traverse_shares(host, file, action)) 228 nlmsvc_traverse_shares(host, file, action);
229 return 1;
230 } 229 }
231 return nlm_traverse_locks(host, file, action); 230 return nlm_traverse_locks(host, file, action);
232} 231}
diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c
index 1d700a4dd0b5..f22a3764461a 100644
--- a/fs/lockd/xdr.c
+++ b/fs/lockd/xdr.c
@@ -131,10 +131,11 @@ nlm_decode_lock(u32 *p, struct nlm_lock *lock)
131 || !(p = nlm_decode_fh(p, &lock->fh)) 131 || !(p = nlm_decode_fh(p, &lock->fh))
132 || !(p = nlm_decode_oh(p, &lock->oh))) 132 || !(p = nlm_decode_oh(p, &lock->oh)))
133 return NULL; 133 return NULL;
134 lock->svid = ntohl(*p++);
134 135
135 locks_init_lock(fl); 136 locks_init_lock(fl);
136 fl->fl_owner = current->files; 137 fl->fl_owner = current->files;
137 fl->fl_pid = ntohl(*p++); 138 fl->fl_pid = (pid_t)lock->svid;
138 fl->fl_flags = FL_POSIX; 139 fl->fl_flags = FL_POSIX;
139 fl->fl_type = F_RDLCK; /* as good as anything else */ 140 fl->fl_type = F_RDLCK; /* as good as anything else */
140 start = ntohl(*p++); 141 start = ntohl(*p++);
@@ -174,7 +175,7 @@ nlm_encode_lock(u32 *p, struct nlm_lock *lock)
174 else 175 else
175 len = loff_t_to_s32(fl->fl_end - fl->fl_start + 1); 176 len = loff_t_to_s32(fl->fl_end - fl->fl_start + 1);
176 177
177 *p++ = htonl(fl->fl_pid); 178 *p++ = htonl(lock->svid);
178 *p++ = htonl(start); 179 *p++ = htonl(start);
179 *p++ = htonl(len); 180 *p++ = htonl(len);
180 181
@@ -197,7 +198,7 @@ nlm_encode_testres(u32 *p, struct nlm_res *resp)
197 struct file_lock *fl = &resp->lock.fl; 198 struct file_lock *fl = &resp->lock.fl;
198 199
199 *p++ = (fl->fl_type == F_RDLCK)? xdr_zero : xdr_one; 200 *p++ = (fl->fl_type == F_RDLCK)? xdr_zero : xdr_one;
200 *p++ = htonl(fl->fl_pid); 201 *p++ = htonl(resp->lock.svid);
201 202
202 /* Encode owner handle. */ 203 /* Encode owner handle. */
203 if (!(p = xdr_encode_netobj(p, &resp->lock.oh))) 204 if (!(p = xdr_encode_netobj(p, &resp->lock.oh)))
@@ -298,7 +299,8 @@ nlmsvc_decode_shareargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
298 299
299 memset(lock, 0, sizeof(*lock)); 300 memset(lock, 0, sizeof(*lock));
300 locks_init_lock(&lock->fl); 301 locks_init_lock(&lock->fl);
301 lock->fl.fl_pid = ~(u32) 0; 302 lock->svid = ~(u32) 0;
303 lock->fl.fl_pid = (pid_t)lock->svid;
302 304
303 if (!(p = nlm_decode_cookie(p, &argp->cookie)) 305 if (!(p = nlm_decode_cookie(p, &argp->cookie))
304 || !(p = xdr_decode_string_inplace(p, &lock->caller, 306 || !(p = xdr_decode_string_inplace(p, &lock->caller,
@@ -415,7 +417,8 @@ nlmclt_decode_testres(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
415 memset(&resp->lock, 0, sizeof(resp->lock)); 417 memset(&resp->lock, 0, sizeof(resp->lock));
416 locks_init_lock(fl); 418 locks_init_lock(fl);
417 excl = ntohl(*p++); 419 excl = ntohl(*p++);
418 fl->fl_pid = ntohl(*p++); 420 resp->lock.svid = ntohl(*p++);
421 fl->fl_pid = (pid_t)resp->lock.svid;
419 if (!(p = nlm_decode_oh(p, &resp->lock.oh))) 422 if (!(p = nlm_decode_oh(p, &resp->lock.oh)))
420 return -EIO; 423 return -EIO;
421 424
@@ -543,7 +546,9 @@ nlmclt_decode_res(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
543 .p_proc = NLMPROC_##proc, \ 546 .p_proc = NLMPROC_##proc, \
544 .p_encode = (kxdrproc_t) nlmclt_encode_##argtype, \ 547 .p_encode = (kxdrproc_t) nlmclt_encode_##argtype, \
545 .p_decode = (kxdrproc_t) nlmclt_decode_##restype, \ 548 .p_decode = (kxdrproc_t) nlmclt_decode_##restype, \
546 .p_bufsiz = MAX(NLM_##argtype##_sz, NLM_##restype##_sz) << 2 \ 549 .p_bufsiz = MAX(NLM_##argtype##_sz, NLM_##restype##_sz) << 2, \
550 .p_statidx = NLMPROC_##proc, \
551 .p_name = #proc, \
547 } 552 }
548 553
549static struct rpc_procinfo nlm_procedures[] = { 554static struct rpc_procinfo nlm_procedures[] = {
diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c
index fdcf105a5303..36eb175ec335 100644
--- a/fs/lockd/xdr4.c
+++ b/fs/lockd/xdr4.c
@@ -130,10 +130,11 @@ nlm4_decode_lock(u32 *p, struct nlm_lock *lock)
130 || !(p = nlm4_decode_fh(p, &lock->fh)) 130 || !(p = nlm4_decode_fh(p, &lock->fh))
131 || !(p = nlm4_decode_oh(p, &lock->oh))) 131 || !(p = nlm4_decode_oh(p, &lock->oh)))
132 return NULL; 132 return NULL;
133 lock->svid = ntohl(*p++);
133 134
134 locks_init_lock(fl); 135 locks_init_lock(fl);
135 fl->fl_owner = current->files; 136 fl->fl_owner = current->files;
136 fl->fl_pid = ntohl(*p++); 137 fl->fl_pid = (pid_t)lock->svid;
137 fl->fl_flags = FL_POSIX; 138 fl->fl_flags = FL_POSIX;
138 fl->fl_type = F_RDLCK; /* as good as anything else */ 139 fl->fl_type = F_RDLCK; /* as good as anything else */
139 p = xdr_decode_hyper(p, &start); 140 p = xdr_decode_hyper(p, &start);
@@ -167,7 +168,7 @@ nlm4_encode_lock(u32 *p, struct nlm_lock *lock)
167 || (fl->fl_end > NLM4_OFFSET_MAX && fl->fl_end != OFFSET_MAX)) 168 || (fl->fl_end > NLM4_OFFSET_MAX && fl->fl_end != OFFSET_MAX))
168 return NULL; 169 return NULL;
169 170
170 *p++ = htonl(fl->fl_pid); 171 *p++ = htonl(lock->svid);
171 172
172 start = loff_t_to_s64(fl->fl_start); 173 start = loff_t_to_s64(fl->fl_start);
173 if (fl->fl_end == OFFSET_MAX) 174 if (fl->fl_end == OFFSET_MAX)
@@ -198,7 +199,7 @@ nlm4_encode_testres(u32 *p, struct nlm_res *resp)
198 struct file_lock *fl = &resp->lock.fl; 199 struct file_lock *fl = &resp->lock.fl;
199 200
200 *p++ = (fl->fl_type == F_RDLCK)? xdr_zero : xdr_one; 201 *p++ = (fl->fl_type == F_RDLCK)? xdr_zero : xdr_one;
201 *p++ = htonl(fl->fl_pid); 202 *p++ = htonl(resp->lock.svid);
202 203
203 /* Encode owner handle. */ 204 /* Encode owner handle. */
204 if (!(p = xdr_encode_netobj(p, &resp->lock.oh))) 205 if (!(p = xdr_encode_netobj(p, &resp->lock.oh)))
@@ -212,8 +213,8 @@ nlm4_encode_testres(u32 *p, struct nlm_res *resp)
212 213
213 p = xdr_encode_hyper(p, start); 214 p = xdr_encode_hyper(p, start);
214 p = xdr_encode_hyper(p, len); 215 p = xdr_encode_hyper(p, len);
215 dprintk("xdr: encode_testres (status %d pid %d type %d start %Ld end %Ld)\n", 216 dprintk("xdr: encode_testres (status %u pid %d type %d start %Ld end %Ld)\n",
216 resp->status, fl->fl_pid, fl->fl_type, 217 resp->status, (int)resp->lock.svid, fl->fl_type,
217 (long long)fl->fl_start, (long long)fl->fl_end); 218 (long long)fl->fl_start, (long long)fl->fl_end);
218 } 219 }
219 220
@@ -303,7 +304,8 @@ nlm4svc_decode_shareargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
303 304
304 memset(lock, 0, sizeof(*lock)); 305 memset(lock, 0, sizeof(*lock));
305 locks_init_lock(&lock->fl); 306 locks_init_lock(&lock->fl);
306 lock->fl.fl_pid = ~(u32) 0; 307 lock->svid = ~(u32) 0;
308 lock->fl.fl_pid = (pid_t)lock->svid;
307 309
308 if (!(p = nlm4_decode_cookie(p, &argp->cookie)) 310 if (!(p = nlm4_decode_cookie(p, &argp->cookie))
309 || !(p = xdr_decode_string_inplace(p, &lock->caller, 311 || !(p = xdr_decode_string_inplace(p, &lock->caller,
@@ -420,7 +422,8 @@ nlm4clt_decode_testres(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
420 memset(&resp->lock, 0, sizeof(resp->lock)); 422 memset(&resp->lock, 0, sizeof(resp->lock));
421 locks_init_lock(fl); 423 locks_init_lock(fl);
422 excl = ntohl(*p++); 424 excl = ntohl(*p++);
423 fl->fl_pid = ntohl(*p++); 425 resp->lock.svid = ntohl(*p++);
426 fl->fl_pid = (pid_t)resp->lock.svid;
424 if (!(p = nlm4_decode_oh(p, &resp->lock.oh))) 427 if (!(p = nlm4_decode_oh(p, &resp->lock.oh)))
425 return -EIO; 428 return -EIO;
426 429
@@ -548,7 +551,9 @@ nlm4clt_decode_res(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
548 .p_proc = NLMPROC_##proc, \ 551 .p_proc = NLMPROC_##proc, \
549 .p_encode = (kxdrproc_t) nlm4clt_encode_##argtype, \ 552 .p_encode = (kxdrproc_t) nlm4clt_encode_##argtype, \
550 .p_decode = (kxdrproc_t) nlm4clt_decode_##restype, \ 553 .p_decode = (kxdrproc_t) nlm4clt_decode_##restype, \
551 .p_bufsiz = MAX(NLM4_##argtype##_sz, NLM4_##restype##_sz) << 2 \ 554 .p_bufsiz = MAX(NLM4_##argtype##_sz, NLM4_##restype##_sz) << 2, \
555 .p_statidx = NLMPROC_##proc, \
556 .p_name = #proc, \
552 } 557 }
553 558
554static struct rpc_procinfo nlm4_procedures[] = { 559static struct rpc_procinfo nlm4_procedures[] = {
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-20 16:20:53 -0400