X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fldlm%2Fl_lock.c;h=124f8349f64859d8f451a52b262d0384d32ae754;hb=682f3e19473b91f6face2567513b25a7b6d3fc24;hp=ac268ecd8320067bb765f959778f6691371f8c32;hpb=6869932b552ac705f411de3362f01bd50c1f6f7d;p=fs%2Flustre-release.git diff --git a/lustre/ldlm/l_lock.c b/lustre/ldlm/l_lock.c index ac268ec..124f834 100644 --- a/lustre/ldlm/l_lock.c +++ b/lustre/ldlm/l_lock.c @@ -1,6 +1,4 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: - * +/* * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. @@ -26,7 +24,7 @@ * GPL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved + * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. */ /* @@ -37,7 +35,7 @@ #define DEBUG_SUBSYSTEM S_LDLM #ifdef __KERNEL__ #include -#else +#else #include #endif @@ -52,30 +50,24 @@ */ struct ldlm_resource * lock_res_and_lock(struct ldlm_lock *lock) { - struct ldlm_resource *res = lock->l_resource; + /* on server-side resource of lock doesn't change */ + if (!lock->l_ns_srv) + cfs_spin_lock(&lock->l_lock); - if (ns_is_server(res->lr_namespace)) { - /* on server-side resource of lock doesn't change */ - lock_res(res); - return res; - } + lock_res(lock->l_resource); - spin_lock(&lock->l_lock); - res = lock->l_resource; - lock_res(res); - return res; + lock->l_res_locked = 1; + return lock->l_resource; } +EXPORT_SYMBOL(lock_res_and_lock); void unlock_res_and_lock(struct ldlm_lock *lock) { - struct ldlm_resource *res = lock->l_resource; - - if (ns_is_server(res->lr_namespace)) { - /* on server-side resource of lock doesn't change */ - unlock_res(res); - return; - } + /* on server-side resource of lock doesn't change */ + lock->l_res_locked = 0; - unlock_res(res); - spin_unlock(&lock->l_lock); + unlock_res(lock->l_resource); + if (!lock->l_ns_srv) + cfs_spin_unlock(&lock->l_lock); } +EXPORT_SYMBOL(unlock_res_and_lock);