Return-Path: linux-nfs-owner@vger.kernel.org Received: from mail-qg0-f43.google.com ([209.85.192.43]:41469 "EHLO mail-qg0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753880AbaG3M2M (ORCPT ); Wed, 30 Jul 2014 08:28:12 -0400 Received: by mail-qg0-f43.google.com with SMTP id a108so1285120qge.2 for ; Wed, 30 Jul 2014 05:28:11 -0700 (PDT) From: Jeff Layton To: bfields@fieldses.org Cc: linux-nfs@vger.kernel.org, hch@infradead.org Subject: [PATCH 19/37] nfsd: add a list_head arg to nfsd_foreach_client_lock Date: Wed, 30 Jul 2014 08:27:20 -0400 Message-Id: <1406723258-8512-20-git-send-email-jlayton@primarydata.com> In-Reply-To: <1406723258-8512-1-git-send-email-jlayton@primarydata.com> References: <1406723258-8512-1-git-send-email-jlayton@primarydata.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: In a later patch, we'll want to collect the locks onto a list for later destruction. If "func" is defined and "collect" is defined, then we'll add the lock stateid to the list. Signed-off-by: Jeff Layton --- fs/nfsd/nfs4state.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 8cc3a8c1c2a9..b6020e4a2102 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -5807,6 +5807,7 @@ static void nfsd_print_count(struct nfs4_client *clp, unsigned int count, } static u64 nfsd_foreach_client_lock(struct nfs4_client *clp, u64 max, + struct list_head *collect, void (*func)(struct nfs4_ol_stateid *)) { struct nfs4_openowner *oop; @@ -5819,8 +5820,12 @@ static u64 nfsd_foreach_client_lock(struct nfs4_client *clp, u64 max, &oop->oo_owner.so_stateids, st_perstateowner) { list_for_each_entry_safe(lst, lst_next, &stp->st_locks, st_locks) { - if (func) + if (func) { func(lst); + if (collect) + list_add(&lst->st_locks, + collect); + } if (++count == max) return count; } @@ -5832,12 +5837,12 @@ static u64 nfsd_foreach_client_lock(struct nfs4_client *clp, u64 max, u64 nfsd_forget_client_locks(struct nfs4_client *clp, u64 max) { - return nfsd_foreach_client_lock(clp, max, release_lock_stateid); + return nfsd_foreach_client_lock(clp, max, NULL, release_lock_stateid); } u64 nfsd_print_client_locks(struct nfs4_client *clp, u64 max) { - u64 count = nfsd_foreach_client_lock(clp, max, NULL); + u64 count = nfsd_foreach_client_lock(clp, max, NULL, NULL); nfsd_print_count(clp, count, "locked files"); return count; } -- 1.9.3