debian/notmuch
1
0
Fork 0
mirror of https://git.notmuchmail.org/git/notmuch synced 2024-11-22 02:48:08 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions
notmuch/test/corpora/lkml/cur/1382298587.001734:2,
David Bremner 126347b694 Import notmuch_0.38.2.orig.tar.xz 
[dgit import orig notmuch_0.38.2.orig.tar.xz]
2023-12-01 07:51:09 -04:00

223 lines
7.9 KiB
Text
Raw Blame History

From: Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org>
Subject: [RFC][PATCH 04/10] cifs: define server-level cache index objects and register them with FS-Cache
Date: Tue, 22 Jun 2010 20:53:18 +0530
Lines: 186
Message-ID: <1277220198-3522-1-git-send-email-sjayaraman@suse.de>
References: <yes>
Cc: linux-cifs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Steve French <smfrench-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
X-From: linux-cifs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Tue Jun 22 17:44:26 2010
Return-path: <linux-cifs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Envelope-to: glkc-linux-cifs-1dZseelyfdZg9hUCZPvPmw@public.gmane.org
Received: from vger.kernel.org ([209.132.180.67])
by lo.gmane.org with esmtp (Exim 4.69)
(envelope-from <linux-cifs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>)
id 1OR5eD-0008G7-KP
for glkc-linux-cifs-1dZseelyfdZg9hUCZPvPmw@public.gmane.org; Tue, 22 Jun 2010 17:44:26 +0200
Received: (majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org) by vger.kernel.org via listexpand
id S1753942Ab0FVPoC (ORCPT <rfc822;glkc-linux-cifs@m.gmane.org>);
Tue, 22 Jun 2010 11:44:02 -0400
Received: from victor.provo.novell.com ([137.65.250.26]:58783 "EHLO
victor.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
with ESMTP id S1751265Ab0FVPoA (ORCPT
<rfc822;groupwise-SJayaraman-Et1tbQHTxzrQT0dZR+AlfA@public.gmane.org:0:0>);
Tue, 22 Jun 2010 11:44:00 -0400
Received: from localhost (prv-ext-foundry1int.gns.novell.com [137.65.251.240])
by victor.provo.novell.com with ESMTP; Tue, 22 Jun 2010 09:23:20 -0600
X-Mailer: git-send-email 1.6.4.2
In-Reply-To: <yes>
Sender: linux-cifs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Precedence: bulk
List-ID: <linux-cifs.vger.kernel.org>
X-Mailing-List: linux-cifs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1001760>
Define server-level cache index objects (as managed by TCP_ServerInfo structs).
Each server object is created in the CIFS top-level index object and is itself
an index into which superblock-level objects are inserted.
Currently, the server objects are keyed by hostname.
Signed-off-by: Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org>
---
fs/cifs/Makefile | 2 +-
fs/cifs/cache.c | 25 +++++++++++++++++++++++++
fs/cifs/cifsglob.h | 3 +++
fs/cifs/connect.c | 4 ++++
fs/cifs/fscache.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
fs/cifs/fscache.h | 12 ++++++++++++
6 files changed, 92 insertions(+), 1 deletion(-)
create mode 100644 fs/cifs/fscache.c
Index: cifs-2.6/fs/cifs/Makefile
===================================================================
--- cifs-2.6.orig/fs/cifs/Makefile
+++ cifs-2.6/fs/cifs/Makefile
@@ -12,4 +12,4 @@ cifs-$(CONFIG_CIFS_UPCALL) += cifs_spneg
cifs-$(CONFIG_CIFS_DFS_UPCALL) += dns_resolve.o cifs_dfs_ref.o
-cifs-$(CONFIG_CIFS_FSCACHE) += cache.o
+cifs-$(CONFIG_CIFS_FSCACHE) += fscache.o cache.o
Index: cifs-2.6/fs/cifs/cache.c
===================================================================
--- cifs-2.6.orig/fs/cifs/cache.c
+++ cifs-2.6/fs/cifs/cache.c
@@ -51,3 +51,28 @@ void cifs_fscache_unregister(void)
fscache_unregister_netfs(&cifs_fscache_netfs);
}
+/*
+ * Server object currently keyed by hostname
+ */
+static uint16_t cifs_server_get_key(const void *cookie_netfs_data,
+ void *buffer, uint16_t maxbuf)
+{
+ const struct TCP_Server_Info *server = cookie_netfs_data;
+ uint16_t len = strnlen(server->hostname, sizeof(server->hostname));
+
+ if (len > maxbuf)
+ return 0;
+
+ memcpy(buffer, server->hostname, len);
+
+ return len;
+}
+
+/*
+ * Server object for FS-Cache
+ */
+const struct fscache_cookie_def cifs_fscache_server_index_def = {
+ .name = "CIFS.server",
+ .type = FSCACHE_COOKIE_TYPE_INDEX,
+ .get_key = cifs_server_get_key,
+};
Index: cifs-2.6/fs/cifs/cifsglob.h
===================================================================
--- cifs-2.6.orig/fs/cifs/cifsglob.h
+++ cifs-2.6/fs/cifs/cifsglob.h
@@ -193,6 +193,9 @@ struct TCP_Server_Info {
bool sec_mskerberos; /* supports legacy MS Kerberos */
bool sec_kerberosu2u; /* supports U2U Kerberos */
bool sec_ntlmssp; /* supports NTLMSSP */
+#ifdef CONFIG_CIFS_FSCACHE
+ struct fscache_cookie *fscache; /* client index cache cookie */
+#endif
};
/*
Index: cifs-2.6/fs/cifs/connect.c
===================================================================
--- cifs-2.6.orig/fs/cifs/connect.c
+++ cifs-2.6/fs/cifs/connect.c
@@ -48,6 +48,7 @@
#include "nterr.h"
#include "rfc1002pdu.h"
#include "cn_cifs.h"
+#include "fscache.h"
#define CIFS_PORT 445
#define RFC1001_PORT 139
@@ -1453,6 +1454,8 @@ cifs_put_tcp_session(struct TCP_Server_I
return;
}
+ cifs_fscache_release_client_cookie(server);
+
list_del_init(&server->tcp_ses_list);
write_unlock(&cifs_tcp_ses_lock);
@@ -1572,6 +1575,7 @@ cifs_get_tcp_session(struct smb_vol *vol
goto out_err;
}
+ cifs_fscache_get_client_cookie(tcp_ses);
/* thread spawned, put it on the list */
write_lock(&cifs_tcp_ses_lock);
list_add(&tcp_ses->tcp_ses_list, &cifs_tcp_ses_list);
Index: cifs-2.6/fs/cifs/fscache.c
===================================================================
--- /dev/null
+++ cifs-2.6/fs/cifs/fscache.c
@@ -0,0 +1,47 @@
+/*
+ * fs/cifs/fscache.c - CIFS filesystem cache interface
+ *
+ * Copyright (c) 2010 Novell, Inc.
+ * Authors(s): Suresh Jayaraman (sjayaraman-l3A5Bk7waGM@public.gmane.org>
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/in6.h>
+
+#include "fscache.h"
+#include "cifsglob.h"
+#include "cifs_debug.h"
+
+void cifs_fscache_get_client_cookie(struct TCP_Server_Info *server)
+{
+ server->fscache =
+ fscache_acquire_cookie(cifs_fscache_netfs.primary_index,
+ &cifs_fscache_server_index_def, server);
+ cFYI(1, "CIFS: get client cookie (0x%p/0x%p)\n",
+ server, server->fscache);
+}
+
+void cifs_fscache_release_client_cookie(struct TCP_Server_Info *server)
+{
+ cFYI(1, "CIFS: release client cookie (0x%p/0x%p)\n",
+ server, server->fscache);
+ fscache_relinquish_cookie(server->fscache, 0);
+ server->fscache = NULL;
+}
+
Index: cifs-2.6/fs/cifs/fscache.h
===================================================================
--- cifs-2.6.orig/fs/cifs/fscache.h
+++ cifs-2.6/fs/cifs/fscache.h
@@ -27,14 +27,26 @@
#ifdef CONFIG_CIFS_FSCACHE
extern struct fscache_netfs cifs_fscache_netfs;
+extern const struct fscache_cookie_def cifs_fscache_server_index_def;
extern int cifs_fscache_register(void);
extern void cifs_fscache_unregister(void);
+/*
+ * fscache.c
+ */
+extern void cifs_fscache_get_client_cookie(struct TCP_Server_Info *);
+extern void cifs_fscache_release_client_cookie(struct TCP_Server_Info *);
+
#else /* CONFIG_CIFS_FSCACHE */
static inline int cifs_fscache_register(void) { return 0; }
static inline void cifs_fscache_unregister(void) {}
+static inline void
+cifs_fscache_get_client_cookie(struct TCP_Server_Info *server) {}
+static inline void
+cifs_fscache_get_client_cookie(struct TCP_Server_Info *server); {}
+
#endif /* CONFIG_CIFS_FSCACHE */
#endif /* _CIFS_FSCACHE_H */
Reference in a new issue View git blame Copy permalink