tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 9506597de2cde02d48c11d5c250250b9143f59f7 commit: d09f2c6cf3b86788749d16df93080476244030d3 [9146/9596] ocfs2: re-queue AST or BAST if sending is failed to improve the reliability config: x86_64-randconfig-b0-08242253 (attached as .config) compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7 reproduce: git checkout d09f2c6cf3b86788749d16df93080476244030d3 # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): fs/ocfs2/dlm/dlmrecovery.c: In function 'dlm_free_dead_locks': >> fs/ocfs2/dlm/dlmrecovery.c:2306: warning: unused variable 'i' >> fs/ocfs2/dlm/dlmrecovery.c:2305: warning: unused variable 'queue' vim +/i +2306 fs/ocfs2/dlm/dlmrecovery.c 2297 2298 static void dlm_free_dead_locks(struct dlm_ctxt *dlm, 2299 struct dlm_lock_resource *res, u8 dead_node, 2300 int *reserved) 2301 { 2302 struct dlm_lock *lock, *next; 2303 unsigned int freed = 0; 2304 int reserved_tmp = 0; > 2305 struct list_head *queue = NULL; > 2306 int i; 2307 2308 /* this node is the lockres master: 2309 * 1) remove any stale locks for the dead node 2310 * 2) if the dead node had an EX when he died, blank out the lvb 2311 */ 2312 assert_spin_locked(&dlm->spinlock); 2313 assert_spin_locked(&res->spinlock); 2314 2315 /* We do two dlm_lock_put(). One for removing from list and the other is 2316 * to force the DLM_UNLOCK_FREE_LOCK action so as to free the locks */ 2317 2318 /* TODO: check pending_asts, pending_basts here */ 2319 list_for_each_entry_safe(lock, next, &res->granted, list) { 2320 if (lock->ml.node == dead_node) { 2321 list_del_init(&lock->list); 2322 dlm_lock_put(lock); 2323 2324 reserved_tmp += dlm_drop_pending_ast_bast(dlm, lock); 2325 2326 /* Can't schedule DLM_UNLOCK_FREE_LOCK - do manually */ 2327 dlm_lock_put(lock); 2328 freed++; 2329 } 2330 } 2331 list_for_each_entry_safe(lock, next, &res->converting, list) { 2332 if (lock->ml.node == dead_node) { 2333 list_del_init(&lock->list); 2334 dlm_lock_put(lock); 2335 2336 reserved_tmp += dlm_drop_pending_ast_bast(dlm, lock); 2337 2338 /* Can't schedule DLM_UNLOCK_FREE_LOCK - do manually */ 2339 dlm_lock_put(lock); 2340 freed++; 2341 } 2342 } 2343 list_for_each_entry_safe(lock, next, &res->blocked, list) { 2344 if (lock->ml.node == dead_node) { 2345 list_del_init(&lock->list); 2346 dlm_lock_put(lock); 2347 /* Can't schedule DLM_UNLOCK_FREE_LOCK - do manually */ 2348 dlm_lock_put(lock); 2349 freed++; 2350 } 2351 } 2352 2353 *reserved = reserved_tmp; 2354 2355 if (freed) { 2356 mlog(0, "%s:%.*s: freed %u locks for dead node %u, " 2357 "dropping ref from lockres\n", dlm->name, 2358 res->lockname.len, res->lockname.name, freed, dead_node); 2359 if(!test_bit(dead_node, res->refmap)) { 2360 mlog(ML_ERROR, "%s:%.*s: freed %u locks for dead node %u, " 2361 "but ref was not set\n", dlm->name, 2362 res->lockname.len, res->lockname.name, freed, dead_node); 2363 __dlm_print_one_lock_resource(res); 2364 } 2365 res->state |= DLM_LOCK_RES_RECOVERY_WAITING; 2366 dlm_lockres_clear_refmap_bit(dlm, res, dead_node); 2367 } else if (test_bit(dead_node, res->refmap)) { 2368 mlog(0, "%s:%.*s: dead node %u had a ref, but had " 2369 "no locks and had not purged before dying\n", dlm->name, 2370 res->lockname.len, res->lockname.name, dead_node); 2371 dlm_lockres_clear_refmap_bit(dlm, res, dead_node); 2372 } 2373 2374 /* do not kick thread yet */ 2375 __dlm_dirty_lockres(dlm, res); 2376 } 2377 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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