Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760752AbXIUOtq (ORCPT ); Fri, 21 Sep 2007 10:49:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758854AbXIUOtS (ORCPT ); Fri, 21 Sep 2007 10:49:18 -0400 Received: from mx1.redhat.com ([66.187.233.31]:51190 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758641AbXIUOtO (ORCPT ); Fri, 21 Sep 2007 10:49:14 -0400 Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells Subject: [PATCH 16/22] NFS: Display local caching state To: viro@ftp.linux.org.uk, hch@infradead.org, Trond.Myklebust@netapp.com, sds@tycho.nsa.gov, casey@schaufler-ca.com Cc: linux-kernel@vger.kernel.org, selinux@tycho.nsa.gov, linux-security-module@vger.kernel.org, dhowells@redhat.com Date: Fri, 21 Sep 2007 15:48:25 +0100 Message-ID: <20070921144825.8323.59284.stgit@warthog.procyon.org.uk> In-Reply-To: <20070921144703.8323.50492.stgit@warthog.procyon.org.uk> References: <20070921144703.8323.50492.stgit@warthog.procyon.org.uk> User-Agent: StGIT/0.13 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2644 Lines: 74 Display the local caching state in /proc/fs/nfsfs/volumes. Signed-off-by: David Howells --- fs/nfs/client.c | 7 ++++--- fs/nfs/fscache.h | 12 ++++++++++++ 2 files changed, 16 insertions(+), 3 deletions(-) diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 0de4db4..d350668 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -1319,7 +1319,7 @@ static int nfs_volume_list_show(struct seq_file *m, void *v) /* display header on line 1 */ if (v == &nfs_volume_list) { - seq_puts(m, "NV SERVER PORT DEV FSID\n"); + seq_puts(m, "NV SERVER PORT DEV FSID FSC\n"); return 0; } /* display one transport per line on subsequent lines */ @@ -1333,12 +1333,13 @@ static int nfs_volume_list_show(struct seq_file *m, void *v) (unsigned long long) server->fsid.major, (unsigned long long) server->fsid.minor); - seq_printf(m, "v%d %02x%02x%02x%02x %4hx %-7s %-17s\n", + seq_printf(m, "v%d %02x%02x%02x%02x %4hx %-7s %-17s %s\n", clp->cl_nfsversion, NIPQUAD(clp->cl_addr.sin_addr), ntohs(clp->cl_addr.sin_port), dev, - fsid); + fsid, + nfs_server_fscache_state(server)); return 0; } diff --git a/fs/nfs/fscache.h b/fs/nfs/fscache.h index 44bb0d1..77f3450 100644 --- a/fs/nfs/fscache.h +++ b/fs/nfs/fscache.h @@ -56,6 +56,17 @@ extern void __nfs_fscache_invalidate_page(struct page *, struct inode *); extern int nfs_fscache_release_page(struct page *, gfp_t); /* + * indicate the client caching state as readable text + */ +static inline const char *nfs_server_fscache_state(struct nfs_server *server) +{ + if (server->nfs_client->fscache && + (server->options & NFS_OPTION_FSCACHE)) + return "yes"; + return "no "; +} + +/* * release the caching state associated with a page if undergoing complete page * invalidation */ @@ -110,6 +121,7 @@ static inline void nfs_fscache_unregister(void) {} static inline void nfs_fscache_get_client_cookie(struct nfs_client *clp) {} static inline void nfs4_fscache_get_client_cookie(struct nfs_client *clp) {} static inline void nfs_fscache_release_client_cookie(struct nfs_client *clp) {} +static inline const char *nfs_server_fscache_state(struct nfs_server *server) { return "no "; } static inline void nfs_fscache_init_fh_cookie(struct inode *inode) {} static inline void nfs_fscache_enable_fh_cookie(struct inode *inode) {} - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/