Return-Path: linux-nfs-owner@vger.kernel.org Received: from mail-qg0-f53.google.com ([209.85.192.53]:48189 "EHLO mail-qg0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751723AbaFZTVu (ORCPT ); Thu, 26 Jun 2014 15:21:50 -0400 Received: by mail-qg0-f53.google.com with SMTP id i50so3436255qgf.40 for ; Thu, 26 Jun 2014 12:21:50 -0700 (PDT) From: Jeff Layton To: bfields@fieldses.org Cc: linux-nfs@vger.kernel.org Subject: [PATCH v2 098/117] nfsd: add nfsd_inject_forget_clients Date: Thu, 26 Jun 2014 15:21:06 -0400 Message-Id: <1403810485-16497-15-git-send-email-jlayton@primarydata.com> In-Reply-To: <1403810017-16062-1-git-send-email-jlayton@primarydata.com> References: <1403810017-16062-1-git-send-email-jlayton@primarydata.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: ...which uses the client_lock for protection instead of client_mutex. Also remove nfsd_forget_client as there are no more callers. Signed-off-by: Jeff Layton --- fs/nfsd/fault_inject.c | 3 +-- fs/nfsd/nfs4state.c | 42 ++++++++++++++++++++++++++++-------------- fs/nfsd/state.h | 2 +- 3 files changed, 30 insertions(+), 17 deletions(-) diff --git a/fs/nfsd/fault_inject.c b/fs/nfsd/fault_inject.c index 5f3ead0c72fb..76ecdff37ea2 100644 --- a/fs/nfsd/fault_inject.c +++ b/fs/nfsd/fault_inject.c @@ -135,9 +135,8 @@ static struct nfsd_fault_inject_op inject_ops[] = { { .file = "forget_clients", .get = nfsd_inject_print_clients, - .set_val = nfsd_inject_set, + .set_val = nfsd_inject_forget_clients, .set_clnt = nfsd_inject_forget_client, - .forget = nfsd_forget_client, }, { .file = "forget_locks", diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index b12a36e71fee..9feb219e8699 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -5713,20 +5713,6 @@ nfsd_inject_print_clients(struct nfsd_fault_inject_op *op) return count; } -u64 nfsd_forget_client(struct nfs4_client *clp, u64 max) -{ - __be32 ret; - struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id); - - spin_lock(&nn->client_lock); - ret = mark_client_expired_locked(clp); - spin_unlock(&nn->client_lock); - if (ret != nfs_ok) - return 0; - expire_client(clp); - return 1; -} - u64 nfsd_inject_forget_client(struct nfsd_fault_inject_op *op, struct sockaddr_storage *addr, size_t addr_size) @@ -5755,6 +5741,34 @@ nfsd_inject_forget_client(struct nfsd_fault_inject_op *op, return count; } +u64 +nfsd_inject_forget_clients(struct nfsd_fault_inject_op *op, u64 max) +{ + u64 count = 0; + struct nfs4_client *clp, *next; + struct nfsd_net *nn = net_generic(current->nsproxy->net_ns, + nfsd_net_id); + LIST_HEAD(reaplist); + + if (!nfsd_netns_ready(nn)) + return count; + + spin_lock(&nn->client_lock); + list_for_each_entry_safe(clp, next, &nn->client_lru, cl_lru) { + if (mark_client_expired_locked(clp) == nfs_ok) { + list_add(&clp->cl_lru, &reaplist); + if (max != 0 && ++count >= max) + break; + } + } + spin_unlock(&nn->client_lock); + + list_for_each_entry_safe(clp, next, &reaplist, cl_lru) + expire_client(clp); + + return count; +} + static void nfsd_print_count(struct nfs4_client *clp, unsigned int count, const char *type) { diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index a644a9f628d6..4fe973bbb68f 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -474,9 +474,9 @@ u64 nfsd_for_n_state(u64, u64 (*)(struct nfs4_client *, u64)); struct nfs4_client *nfsd_find_client(struct sockaddr_storage *, size_t); u64 nfsd_inject_print_clients(struct nfsd_fault_inject_op *op); -u64 nfsd_forget_client(struct nfs4_client *, u64); u64 nfsd_inject_forget_client(struct nfsd_fault_inject_op *, struct sockaddr_storage *, size_t); +u64 nfsd_inject_forget_clients(struct nfsd_fault_inject_op *, u64); u64 nfsd_forget_client_locks(struct nfs4_client*, u64); u64 nfsd_forget_client_openowners(struct nfs4_client *, u64); -- 1.9.3