diff options
Diffstat (limited to 'fs/ocfs2/dlm/dlmast.c')
| -rw-r--r-- | fs/ocfs2/dlm/dlmast.c | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/fs/ocfs2/dlm/dlmast.c b/fs/ocfs2/dlm/dlmast.c index 355593dd8ef..681046d5139 100644 --- a/fs/ocfs2/dlm/dlmast.c +++ b/fs/ocfs2/dlm/dlmast.c @@ -197,12 +197,14 @@ static void dlm_update_lvb(struct dlm_ctxt *dlm, struct dlm_lock_resource *res, lock->ml.node == dlm->node_num ? "master" : "remote"); memcpy(lksb->lvb, res->lvb, DLM_LVB_LEN); - } else if (lksb->flags & DLM_LKSB_PUT_LVB) { - mlog(0, "setting lvb from lockres for %s node\n", - lock->ml.node == dlm->node_num ? "master" : - "remote"); - memcpy(res->lvb, lksb->lvb, DLM_LVB_LEN); } + /* Do nothing for lvb put requests - they should be done in + * place when the lock is downconverted - otherwise we risk + * racing gets and puts which could result in old lvb data + * being propagated. We leave the put flag set and clear it + * here. In the future we might want to clear it at the time + * the put is actually done. + */ spin_unlock(&res->spinlock); } @@ -318,8 +320,8 @@ int dlm_proxy_ast_handler(struct o2net_msg *msg, u32 len, void *data) res = dlm_lookup_lockres(dlm, name, locklen); if (!res) { - mlog(ML_ERROR, "got %sast for unknown lockres! " - "cookie=%u:%llu, name=%.*s, namelen=%u\n", + mlog(0, "got %sast for unknown lockres! " + "cookie=%u:%llu, name=%.*s, namelen=%u\n", past->type == DLM_AST ? "" : "b", dlm_get_lock_cookie_node(cookie), dlm_get_lock_cookie_seq(cookie), @@ -365,12 +367,10 @@ int dlm_proxy_ast_handler(struct o2net_msg *msg, u32 len, void *data) goto do_ast; } - mlog(ML_ERROR, "got %sast for unknown lock! cookie=%u:%llu, " - "name=%.*s, namelen=%u\n", - past->type == DLM_AST ? "" : "b", - dlm_get_lock_cookie_node(cookie), - dlm_get_lock_cookie_seq(cookie), - locklen, name, locklen); + mlog(0, "got %sast for unknown lock! cookie=%u:%llu, " + "name=%.*s, namelen=%u\n", past->type == DLM_AST ? "" : "b", + dlm_get_lock_cookie_node(cookie), dlm_get_lock_cookie_seq(cookie), + locklen, name, locklen); ret = DLM_NORMAL; unlock_out: @@ -381,8 +381,7 @@ do_ast: ret = DLM_NORMAL; if (past->type == DLM_AST) { /* do not alter lock refcount. switching lists. */ - list_del_init(&lock->list); - list_add_tail(&lock->list, &res->granted); + list_move_tail(&lock->list, &res->granted); mlog(0, "ast: adding to granted list... type=%d, " "convert_type=%d\n", lock->ml.type, lock->ml.convert_type); if (lock->ml.convert_type != LKM_IVMODE) { @@ -463,7 +462,7 @@ int dlm_send_proxy_ast_msg(struct dlm_ctxt *dlm, struct dlm_lock_resource *res, mlog(ML_ERROR, "sent AST to node %u, it returned " "DLM_MIGRATING!\n", lock->ml.node); BUG(); - } else if (status != DLM_NORMAL) { + } else if (status != DLM_NORMAL && status != DLM_IVLOCKID) { mlog(ML_ERROR, "AST to node %u returned %d!\n", lock->ml.node, status); /* ignore it */ |