mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-17 01:34:00 +08:00
d03382ce9a
Define superblock-level cache index objects (managed by cifsTconInfo structs). Each superblock object is created in a server-level index object and in itself an index into which inode-level objects are inserted. The superblock object is keyed by sharename. The UniqueId/IndexNumber is used to validate that the exported share is the same since we accessed it last time. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
59 lines
2.0 KiB
C
59 lines
2.0 KiB
C
/*
|
|
* fs/cifs/fscache.c - CIFS filesystem cache interface
|
|
*
|
|
* Copyright (c) 2010 Novell, Inc.
|
|
* Author(s): Suresh Jayaraman (sjayaraman@suse.de>
|
|
*
|
|
* 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 "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)", server,
|
|
server->fscache);
|
|
}
|
|
|
|
void cifs_fscache_release_client_cookie(struct TCP_Server_Info *server)
|
|
{
|
|
cFYI(1, "CIFS: release client cookie (0x%p/0x%p)", server,
|
|
server->fscache);
|
|
fscache_relinquish_cookie(server->fscache, 0);
|
|
server->fscache = NULL;
|
|
}
|
|
|
|
void cifs_fscache_get_super_cookie(struct cifsTconInfo *tcon)
|
|
{
|
|
struct TCP_Server_Info *server = tcon->ses->server;
|
|
|
|
tcon->fscache =
|
|
fscache_acquire_cookie(server->fscache,
|
|
&cifs_fscache_super_index_def, tcon);
|
|
cFYI(1, "CIFS: get superblock cookie (0x%p/0x%p)",
|
|
server->fscache, tcon->fscache);
|
|
}
|
|
|
|
void cifs_fscache_release_super_cookie(struct cifsTconInfo *tcon)
|
|
{
|
|
cFYI(1, "CIFS: releasing superblock cookie (0x%p)", tcon->fscache);
|
|
fscache_relinquish_cookie(tcon->fscache, 0);
|
|
tcon->fscache = NULL;
|
|
}
|