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-rw-r--r--fs/afs/main.c262
1 files changed, 79 insertions, 183 deletions
diff --git a/fs/afs/main.c b/fs/afs/main.c
index f2704ba5385..40c2704e755 100644
--- a/fs/afs/main.c
+++ b/fs/afs/main.c
@@ -1,4 +1,4 @@
-/* main.c: AFS client file system
+/* AFS client file system
*
* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
@@ -13,43 +13,21 @@
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/completion.h>
-#include <rxrpc/rxrpc.h>
-#include <rxrpc/transport.h>
-#include <rxrpc/call.h>
-#include <rxrpc/peer.h>
-#include "cache.h"
-#include "cell.h"
-#include "server.h"
-#include "fsclient.h"
-#include "cmservice.h"
-#include "kafstimod.h"
-#include "kafsasyncd.h"
#include "internal.h"
-struct rxrpc_transport *afs_transport;
-
-static int afs_adding_peer(struct rxrpc_peer *peer);
-static void afs_discarding_peer(struct rxrpc_peer *peer);
-
-
MODULE_DESCRIPTION("AFS Client File System");
MODULE_AUTHOR("Red Hat, Inc.");
MODULE_LICENSE("GPL");
+unsigned afs_debug;
+module_param_named(debug, afs_debug, uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(afs_debug, "AFS debugging mask");
+
static char *rootcell;
module_param(rootcell, charp, 0);
MODULE_PARM_DESC(rootcell, "root AFS cell name and VL server IP addr list");
-
-static struct rxrpc_peer_ops afs_peer_ops = {
- .adding = afs_adding_peer,
- .discarding = afs_discarding_peer,
-};
-
-struct list_head afs_cb_hash_tbl[AFS_CB_HASH_COUNT];
-DEFINE_SPINLOCK(afs_cb_hash_lock);
-
#ifdef AFS_CACHING_SUPPORT
static struct cachefs_netfs_operations afs_cache_ops = {
.get_page_cookie = afs_cache_get_page_cookie,
@@ -62,20 +40,63 @@ struct cachefs_netfs afs_cache_netfs = {
};
#endif
-/*****************************************************************************/
+struct afs_uuid afs_uuid;
+
+/*
+ * get a client UUID
+ */
+static int __init afs_get_client_UUID(void)
+{
+ struct timespec ts;
+ u64 uuidtime;
+ u16 clockseq;
+ int ret;
+
+ /* read the MAC address of one of the external interfaces and construct
+ * a UUID from it */
+ ret = afs_get_MAC_address(afs_uuid.node);
+ if (ret < 0)
+ return ret;
+
+ getnstimeofday(&ts);
+ uuidtime = (u64) ts.tv_sec * 1000 * 1000 * 10;
+ uuidtime += ts.tv_nsec / 100;
+ uuidtime += AFS_UUID_TO_UNIX_TIME;
+ afs_uuid.time_low = uuidtime;
+ afs_uuid.time_mid = uuidtime >> 32;
+ afs_uuid.time_hi_and_version = (uuidtime >> 48) & AFS_UUID_TIMEHI_MASK;
+ afs_uuid.time_hi_and_version = AFS_UUID_VERSION_TIME;
+
+ get_random_bytes(&clockseq, 2);
+ afs_uuid.clock_seq_low = clockseq;
+ afs_uuid.clock_seq_hi_and_reserved =
+ (clockseq >> 8) & AFS_UUID_CLOCKHI_MASK;
+ afs_uuid.clock_seq_hi_and_reserved = AFS_UUID_VARIANT_STD;
+
+ _debug("AFS UUID: %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+ afs_uuid.time_low,
+ afs_uuid.time_mid,
+ afs_uuid.time_hi_and_version,
+ afs_uuid.clock_seq_hi_and_reserved,
+ afs_uuid.clock_seq_low,
+ afs_uuid.node[0], afs_uuid.node[1], afs_uuid.node[2],
+ afs_uuid.node[3], afs_uuid.node[4], afs_uuid.node[5]);
+
+ return 0;
+}
+
/*
* initialise the AFS client FS module
*/
static int __init afs_init(void)
{
- int loop, ret;
+ int ret;
printk(KERN_INFO "kAFS: Red Hat AFS client v0.1 registering.\n");
- /* initialise the callback hash table */
- spin_lock_init(&afs_cb_hash_lock);
- for (loop = AFS_CB_HASH_COUNT - 1; loop >= 0; loop--)
- INIT_LIST_HEAD(&afs_cb_hash_tbl[loop]);
+ ret = afs_get_client_UUID();
+ if (ret < 0)
+ return ret;
/* register the /proc stuff */
ret = afs_proc_init();
@@ -87,70 +108,56 @@ static int __init afs_init(void)
ret = cachefs_register_netfs(&afs_cache_netfs,
&afs_cache_cell_index_def);
if (ret < 0)
- goto error;
-#endif
-
-#ifdef CONFIG_KEYS_TURNED_OFF
- ret = afs_key_register();
- if (ret < 0)
goto error_cache;
#endif
/* initialise the cell DB */
ret = afs_cell_init(rootcell);
if (ret < 0)
- goto error_keys;
+ goto error_cell_init;
- /* start the timeout daemon */
- ret = afs_kafstimod_start();
+ /* initialise the VL update process */
+ ret = afs_vlocation_update_init();
if (ret < 0)
- goto error_keys;
+ goto error_vl_update_init;
- /* start the async operation daemon */
- ret = afs_kafsasyncd_start();
- if (ret < 0)
- goto error_kafstimod;
+ /* initialise the callback update process */
+ ret = afs_callback_update_init();
/* create the RxRPC transport */
- ret = rxrpc_create_transport(7001, &afs_transport);
+ ret = afs_open_socket();
if (ret < 0)
- goto error_kafsasyncd;
-
- afs_transport->peer_ops = &afs_peer_ops;
+ goto error_open_socket;
/* register the filesystems */
ret = afs_fs_init();
if (ret < 0)
- goto error_transport;
+ goto error_fs;
return ret;
- error_transport:
- rxrpc_put_transport(afs_transport);
- error_kafsasyncd:
- afs_kafsasyncd_stop();
- error_kafstimod:
- afs_kafstimod_stop();
- error_keys:
-#ifdef CONFIG_KEYS_TURNED_OFF
- afs_key_unregister();
- error_cache:
-#endif
+error_fs:
+ afs_close_socket();
+error_open_socket:
+error_vl_update_init:
+error_cell_init:
#ifdef AFS_CACHING_SUPPORT
cachefs_unregister_netfs(&afs_cache_netfs);
- error:
+error_cache:
#endif
+ afs_callback_update_kill();
+ afs_vlocation_purge();
afs_cell_purge();
afs_proc_cleanup();
printk(KERN_ERR "kAFS: failed to register: %d\n", ret);
return ret;
-} /* end afs_init() */
+}
/* XXX late_initcall is kludgy, but the only alternative seems to create
* a transport upon the first mount, which is worse. Or is it?
*/
late_initcall(afs_init); /* must be called after net/ to create socket */
-/*****************************************************************************/
+
/*
* clean up on module removal
*/
@@ -159,127 +166,16 @@ static void __exit afs_exit(void)
printk(KERN_INFO "kAFS: Red Hat AFS client v0.1 unregistering.\n");
afs_fs_exit();
- rxrpc_put_transport(afs_transport);
- afs_kafstimod_stop();
- afs_kafsasyncd_stop();
+ afs_close_socket();
+ afs_purge_servers();
+ afs_callback_update_kill();
+ afs_vlocation_purge();
+ flush_scheduled_work();
afs_cell_purge();
-#ifdef CONFIG_KEYS_TURNED_OFF
- afs_key_unregister();
-#endif
#ifdef AFS_CACHING_SUPPORT
cachefs_unregister_netfs(&afs_cache_netfs);
#endif
afs_proc_cleanup();
-
-} /* end afs_exit() */
-
-module_exit(afs_exit);
-
-/*****************************************************************************/
-/*
- * notification that new peer record is being added
- * - called from krxsecd
- * - return an error to induce an abort
- * - mustn't sleep (caller holds an rwlock)
- */
-static int afs_adding_peer(struct rxrpc_peer *peer)
-{
- struct afs_server *server;
- int ret;
-
- _debug("kAFS: Adding new peer %08x\n", ntohl(peer->addr.s_addr));
-
- /* determine which server the peer resides in (if any) */
- ret = afs_server_find_by_peer(peer, &server);
- if (ret < 0)
- return ret; /* none that we recognise, so abort */
-
- _debug("Server %p{u=%d}\n", server, atomic_read(&server->usage));
-
- _debug("Cell %p{u=%d}\n",
- server->cell, atomic_read(&server->cell->usage));
-
- /* cross-point the structs under a global lock */
- spin_lock(&afs_server_peer_lock);
- peer->user = server;
- server->peer = peer;
- spin_unlock(&afs_server_peer_lock);
-
- afs_put_server(server);
-
- return 0;
-} /* end afs_adding_peer() */
-
-/*****************************************************************************/
-/*
- * notification that a peer record is being discarded
- * - called from krxiod or krxsecd
- */
-static void afs_discarding_peer(struct rxrpc_peer *peer)
-{
- struct afs_server *server;
-
- _enter("%p",peer);
-
- _debug("Discarding peer %08x (rtt=%lu.%lumS)\n",
- ntohl(peer->addr.s_addr),
- (long) (peer->rtt / 1000),
- (long) (peer->rtt % 1000));
-
- /* uncross-point the structs under a global lock */
- spin_lock(&afs_server_peer_lock);
- server = peer->user;
- if (server) {
- peer->user = NULL;
- server->peer = NULL;
- }
- spin_unlock(&afs_server_peer_lock);
-
- _leave("");
-
-} /* end afs_discarding_peer() */
-
-/*****************************************************************************/
-/*
- * clear the dead space between task_struct and kernel stack
- * - called by supplying -finstrument-functions to gcc
- */
-#if 0
-void __cyg_profile_func_enter (void *this_fn, void *call_site)
-__attribute__((no_instrument_function));
-
-void __cyg_profile_func_enter (void *this_fn, void *call_site)
-{
- asm volatile(" movl %%esp,%%edi \n"
- " andl %0,%%edi \n"
- " addl %1,%%edi \n"
- " movl %%esp,%%ecx \n"
- " subl %%edi,%%ecx \n"
- " shrl $2,%%ecx \n"
- " movl $0xedededed,%%eax \n"
- " rep stosl \n"
- :
- : "i"(~(THREAD_SIZE - 1)), "i"(sizeof(struct thread_info))
- : "eax", "ecx", "edi", "memory", "cc"
- );
}
-void __cyg_profile_func_exit(void *this_fn, void *call_site)
-__attribute__((no_instrument_function));
-
-void __cyg_profile_func_exit(void *this_fn, void *call_site)
-{
- asm volatile(" movl %%esp,%%edi \n"
- " andl %0,%%edi \n"
- " addl %1,%%edi \n"
- " movl %%esp,%%ecx \n"
- " subl %%edi,%%ecx \n"
- " shrl $2,%%ecx \n"
- " movl $0xdadadada,%%eax \n"
- " rep stosl \n"
- :
- : "i"(~(THREAD_SIZE - 1)), "i"(sizeof(struct thread_info))
- : "eax", "ecx", "edi", "memory", "cc"
- );
-}
-#endif
+module_exit(afs_exit);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-24 20:11:57 +0000