From e38f299ececc6b63a47074cc922ce8bbd3350c58 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 26 Oct 2023 18:13:13 +0100 Subject: [PATCH] afs: Use peer + service_id as call address Use the rxrpc_peer plus the service ID as the call address instead of passing in a sockaddr_srx down to rxrpc. The peer record is obtained by using rxrpc_kernel_get_peer(). This avoids the need to repeatedly look up the peer and allows rxrpc to hold on to resources for it. Signed-off-by: David Howells cc: Marc Dionne cc: linux-afs@lists.infradead.org --- fs/afs/addr_list.c | 10 +++------- fs/afs/fs_probe.c | 4 ++-- fs/afs/fsclient.c | 14 +++++++++----- fs/afs/internal.h | 18 +++++++++++------- fs/afs/rxrpc.c | 12 ++++++------ fs/afs/server.c | 1 + fs/afs/vl_list.c | 3 ++- fs/afs/vl_probe.c | 4 ++-- fs/afs/vlclient.c | 14 ++++++++++++-- 9 files changed, 48 insertions(+), 32 deletions(-) diff --git a/fs/afs/addr_list.c b/fs/afs/addr_list.c index 41ef0c879239..032e6963c5d8 100644 --- a/fs/afs/addr_list.c +++ b/fs/afs/addr_list.c @@ -56,13 +56,12 @@ struct afs_addr_list *afs_get_addrlist(struct afs_addr_list *alist, enum afs_ali /* * Allocate an address list. */ -struct afs_addr_list *afs_alloc_addrlist(unsigned int nr, u16 service_id) +struct afs_addr_list *afs_alloc_addrlist(unsigned int nr) { struct afs_addr_list *alist; - unsigned int i; static atomic_t debug_id; - _enter("%u,%u", nr, service_id); + _enter("%u", nr); if (nr > AFS_MAX_ADDRESSES) nr = AFS_MAX_ADDRESSES; @@ -74,9 +73,6 @@ struct afs_addr_list *afs_alloc_addrlist(unsigned int nr, u16 service_id) refcount_set(&alist->usage, 1); alist->max_addrs = nr; alist->debug_id = atomic_inc_return(&debug_id); - - for (i = 0; i < nr; i++) - alist->addrs[i].service_id = service_id; trace_afs_alist(alist->debug_id, 1, afs_alist_trace_alloc); return alist; } @@ -150,7 +146,7 @@ struct afs_vlserver_list *afs_parse_text_addrs(struct afs_net *net, if (!vllist->servers[0].server) goto error_vl; - alist = afs_alloc_addrlist(nr, service); + alist = afs_alloc_addrlist(nr); if (!alist) goto error; diff --git a/fs/afs/fs_probe.c b/fs/afs/fs_probe.c index 18891492c0b4..337673e65f87 100644 --- a/fs/afs/fs_probe.c +++ b/fs/afs/fs_probe.c @@ -154,12 +154,12 @@ responded: if (call->service_id == YFS_FS_SERVICE) { server->probe.is_yfs = true; set_bit(AFS_SERVER_FL_IS_YFS, &server->flags); - addr->service_id = call->service_id; + server->service_id = call->service_id; } else { server->probe.not_yfs = true; if (!server->probe.is_yfs) { clear_bit(AFS_SERVER_FL_IS_YFS, &server->flags); - addr->service_id = call->service_id; + server->service_id = call->service_id; } cap0 = ntohl(call->tmp); if (cap0 & AFS3_VICED_CAPABILITY_64BITFILES) diff --git a/fs/afs/fsclient.c b/fs/afs/fsclient.c index 2a56dea22519..2b64641b20a4 100644 --- a/fs/afs/fsclient.c +++ b/fs/afs/fsclient.c @@ -1620,7 +1620,9 @@ int afs_fs_give_up_all_callbacks(struct afs_net *net, if (!call) return -ENOMEM; - call->key = key; + call->key = key; + call->peer = rxrpc_kernel_get_peer(ac->alist->addrs[ac->index].peer); + call->service_id = server->service_id; /* marshall the parameters */ bp = call->request; @@ -1722,10 +1724,12 @@ bool afs_fs_get_capabilities(struct afs_net *net, struct afs_server *server, if (!call) return false; - call->key = key; - call->server = afs_use_server(server, afs_server_trace_get_caps); - call->upgrade = true; - call->async = true; + call->key = key; + call->server = afs_use_server(server, afs_server_trace_get_caps); + call->peer = rxrpc_kernel_get_peer(ac->alist->addrs[ac->index].peer); + call->service_id = server->service_id; + call->upgrade = true; + call->async = true; call->max_lifespan = AFS_PROBE_MAX_LIFESPAN; /* marshall the parameters */ diff --git a/fs/afs/internal.h b/fs/afs/internal.h index a321fb83aba1..3a2aa2af072a 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -74,7 +74,6 @@ enum afs_call_state { struct afs_address { struct rxrpc_peer *peer; - u16 service_id; short last_error; /* Last error from this address */ }; @@ -108,6 +107,7 @@ struct afs_call { struct work_struct async_work; /* async I/O processor */ struct work_struct work; /* actual work processor */ struct rxrpc_call *rxcall; /* RxRPC call handle */ + struct rxrpc_peer *peer; /* Remote endpoint */ struct key *key; /* security for this call */ struct afs_net *net; /* The network namespace */ struct afs_server *server; /* The fileserver record if fs op (pins ref) */ @@ -435,6 +435,7 @@ struct afs_vlserver { #define AFS_VLSERVER_PROBE_LOCAL_FAILURE 0x08 /* A local failure prevented a probe */ } probe; + u16 service_id; /* Service ID we're using */ u16 port; u16 name_len; /* Length of name */ char name[]; /* Server name, case-flattened */ @@ -527,6 +528,7 @@ struct afs_server { refcount_t ref; /* Object refcount */ atomic_t active; /* Active user count */ u32 addr_version; /* Address list version */ + u16 service_id; /* Service ID we're using. */ unsigned int rtt; /* Server's current RTT in uS */ unsigned int debug_id; /* Debugging ID for traces */ @@ -971,7 +973,7 @@ static inline bool afs_is_folio_dirty_mmapped(unsigned long priv) * addr_list.c */ struct afs_addr_list *afs_get_addrlist(struct afs_addr_list *alist, enum afs_alist_trace reason); -extern struct afs_addr_list *afs_alloc_addrlist(unsigned int nr, u16 service_id); +extern struct afs_addr_list *afs_alloc_addrlist(unsigned int nr); extern void afs_put_addrlist(struct afs_addr_list *alist, enum afs_alist_trace reason); extern struct afs_vlserver_list *afs_parse_text_addrs(struct afs_net *, const char *, size_t, char, @@ -1318,11 +1320,13 @@ extern int afs_protocol_error(struct afs_call *, enum afs_eproto_cause); static inline void afs_make_op_call(struct afs_operation *op, struct afs_call *call, gfp_t gfp) { - op->call = call; - op->type = call->type; - call->op = op; - call->key = op->key; - call->intr = !(op->flags & AFS_OPERATION_UNINTR); + op->call = call; + op->type = call->type; + call->op = op; + call->key = op->key; + call->intr = !(op->flags & AFS_OPERATION_UNINTR); + call->peer = rxrpc_kernel_get_peer(op->ac.alist->addrs[op->ac.index].peer); + call->service_id = op->server->service_id; afs_make_call(&op->ac, call, gfp); } diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c index 5bbf5a23af85..e8490b3e9d37 100644 --- a/fs/afs/rxrpc.c +++ b/fs/afs/rxrpc.c @@ -178,6 +178,8 @@ void afs_put_call(struct afs_call *call) ASSERT(!work_pending(&call->async_work)); ASSERT(call->type->name != NULL); + rxrpc_kernel_put_peer(call->peer); + if (call->rxcall) { rxrpc_kernel_shutdown_call(net->socket, call->rxcall); rxrpc_kernel_put_call(net->socket, call->rxcall); @@ -296,8 +298,6 @@ static void afs_notify_end_request_tx(struct sock *sock, */ void afs_make_call(struct afs_addr_cursor *ac, struct afs_call *call, gfp_t gfp) { - struct afs_address *addr = &ac->alist->addrs[ac->index]; - struct rxrpc_peer *peer = addr->peer; struct rxrpc_call *rxcall; struct msghdr msg; struct kvec iov[1]; @@ -305,7 +305,7 @@ void afs_make_call(struct afs_addr_cursor *ac, struct afs_call *call, gfp_t gfp) s64 tx_total_len; int ret; - _enter(",{%pISp},", rxrpc_kernel_remote_addr(addr->peer)); + _enter(",{%pISp+%u},", rxrpc_kernel_remote_addr(call->peer), call->service_id); ASSERT(call->type != NULL); ASSERT(call->type->name != NULL); @@ -334,7 +334,7 @@ void afs_make_call(struct afs_addr_cursor *ac, struct afs_call *call, gfp_t gfp) } /* create a call */ - rxcall = rxrpc_kernel_begin_call(call->net->socket, peer, call->key, + rxcall = rxrpc_kernel_begin_call(call->net->socket, call->peer, call->key, (unsigned long)call, tx_total_len, call->max_lifespan, @@ -342,7 +342,7 @@ void afs_make_call(struct afs_addr_cursor *ac, struct afs_call *call, gfp_t gfp) (call->async ? afs_wake_up_async_call : afs_wake_up_call_waiter), - addr->service_id, + call->service_id, call->upgrade, (call->intr ? RXRPC_PREINTERRUPTIBLE : RXRPC_UNINTERRUPTIBLE), @@ -462,7 +462,7 @@ static void afs_log_error(struct afs_call *call, s32 remote_abort) max = m + 1; pr_notice("kAFS: Peer reported %s failure on %s [%pISp]\n", msg, call->type->name, - rxrpc_kernel_remote_addr(call->alist->addrs[call->addr_ix].peer)); + rxrpc_kernel_remote_addr(call->peer)); } } diff --git a/fs/afs/server.c b/fs/afs/server.c index 6c13f00b10d8..e2c7f65eea33 100644 --- a/fs/afs/server.c +++ b/fs/afs/server.c @@ -215,6 +215,7 @@ static struct afs_server *afs_alloc_server(struct afs_cell *cell, spin_lock_init(&server->probe_lock); server->cell = cell; server->rtt = UINT_MAX; + server->service_id = FS_SERVICE; afs_inc_servers_outstanding(net); trace_afs_server(server->debug_id, 1, 1, afs_server_trace_alloc); diff --git a/fs/afs/vl_list.c b/fs/afs/vl_list.c index 3a2875933261..5c4cd71caccf 100644 --- a/fs/afs/vl_list.c +++ b/fs/afs/vl_list.c @@ -23,6 +23,7 @@ struct afs_vlserver *afs_alloc_vlserver(const char *name, size_t name_len, spin_lock_init(&vlserver->probe_lock); vlserver->rtt = UINT_MAX; vlserver->name_len = name_len; + vlserver->service_id = VL_SERVICE; vlserver->port = port; memcpy(vlserver->name, name, name_len); } @@ -92,7 +93,7 @@ static struct afs_addr_list *afs_extract_vl_addrs(struct afs_net *net, const u8 *b = *_b; int ret = -EINVAL; - alist = afs_alloc_addrlist(nr_addrs, VL_SERVICE); + alist = afs_alloc_addrlist(nr_addrs); if (!alist) return ERR_PTR(-ENOMEM); if (nr_addrs == 0) diff --git a/fs/afs/vl_probe.c b/fs/afs/vl_probe.c index 138f5715619d..d9a99ba9fc78 100644 --- a/fs/afs/vl_probe.c +++ b/fs/afs/vl_probe.c @@ -107,12 +107,12 @@ responded: if (call->service_id == YFS_VL_SERVICE) { server->probe.flags |= AFS_VLSERVER_PROBE_IS_YFS; set_bit(AFS_VLSERVER_FL_IS_YFS, &server->flags); - addr->service_id = call->service_id; + server->service_id = call->service_id; } else { server->probe.flags |= AFS_VLSERVER_PROBE_NOT_YFS; if (!(server->probe.flags & AFS_VLSERVER_PROBE_IS_YFS)) { clear_bit(AFS_VLSERVER_FL_IS_YFS, &server->flags); - addr->service_id = call->service_id; + server->service_id = call->service_id; } } diff --git a/fs/afs/vlclient.c b/fs/afs/vlclient.c index 8dea7b56b75a..4bf98a38c3a1 100644 --- a/fs/afs/vlclient.c +++ b/fs/afs/vlclient.c @@ -149,6 +149,8 @@ struct afs_vldb_entry *afs_vl_get_entry_by_name_u(struct afs_vl_cursor *vc, call->key = vc->key; call->ret_vldb = entry; call->max_lifespan = AFS_VL_MAX_LIFESPAN; + call->peer = rxrpc_kernel_get_peer(vc->ac.alist->addrs[vc->ac.index].peer); + call->service_id = vc->server->service_id; /* Marshall the parameters */ bp = call->request; @@ -211,7 +213,7 @@ static int afs_deliver_vl_get_addrs_u(struct afs_call *call) count = ntohl(*bp); nentries = min(nentries, count); - alist = afs_alloc_addrlist(nentries, FS_SERVICE); + alist = afs_alloc_addrlist(nentries); if (!alist) return -ENOMEM; alist->version = uniquifier; @@ -288,6 +290,8 @@ struct afs_addr_list *afs_vl_get_addrs_u(struct afs_vl_cursor *vc, call->key = vc->key; call->ret_alist = NULL; call->max_lifespan = AFS_VL_MAX_LIFESPAN; + call->peer = rxrpc_kernel_get_peer(vc->ac.alist->addrs[vc->ac.index].peer); + call->service_id = vc->server->service_id; /* Marshall the parameters */ bp = call->request; @@ -407,6 +411,8 @@ struct afs_call *afs_vl_get_capabilities(struct afs_net *net, call->key = key; call->vlserver = afs_get_vlserver(server); call->server_index = server_index; + call->peer = rxrpc_kernel_get_peer(ac->alist->addrs[ac->index].peer); + call->service_id = server->service_id; call->upgrade = true; call->async = true; call->max_lifespan = AFS_PROBE_MAX_LIFESPAN; @@ -462,7 +468,7 @@ static int afs_deliver_yfsvl_get_endpoints(struct afs_call *call) if (call->count > YFS_MAXENDPOINTS) return afs_protocol_error(call, afs_eproto_yvl_fsendpt_num); - alist = afs_alloc_addrlist(call->count, FS_SERVICE); + alist = afs_alloc_addrlist(call->count); if (!alist) return -ENOMEM; alist->version = uniquifier; @@ -652,6 +658,8 @@ struct afs_addr_list *afs_yfsvl_get_endpoints(struct afs_vl_cursor *vc, call->key = vc->key; call->ret_alist = NULL; call->max_lifespan = AFS_VL_MAX_LIFESPAN; + call->peer = rxrpc_kernel_get_peer(vc->ac.alist->addrs[vc->ac.index].peer); + call->service_id = vc->server->service_id; /* Marshall the parameters */ bp = call->request; @@ -769,6 +777,8 @@ char *afs_yfsvl_get_cell_name(struct afs_vl_cursor *vc) call->key = vc->key; call->ret_str = NULL; call->max_lifespan = AFS_VL_MAX_LIFESPAN; + call->peer = rxrpc_kernel_get_peer(vc->ac.alist->addrs[vc->ac.index].peer); + call->service_id = vc->server->service_id; /* marshall the parameters */ bp = call->request;