afs: Eliminate the address pointer from the address list cursor

Eliminate the address pointer from the address list cursor as it's
redundant (ac->addrs[ac->index] can be used to find the same address) and
address lists must be replaced rather than being rearranged, so is of
limited value.

Signed-off-by: David Howells <dhowells@redhat.com>

6 files changed, 5 insertions, 10 deletions

diff --git a/fs/afs/addr_list.c b/fs/afs/addr_list.c
index bc5ce31a4ae4..1536d1d21c33 100644
--- a/fs/afs/addr_list.c
+++ b/fs/afs/addr_list.c
@@ -371,7 +371,6 @@ bool afs_iterate_addresses(struct afs_addr_cursor *ac)
 
         ac->begun = true;
         ac->responded = false;
-        ac->addr = &ac->alist->addrs[ac->index];
         return true;
 }
 
@@ -389,7 +388,6 @@ int afs_end_cursor(struct afs_addr_cursor *ac)
                 afs_put_addrlist(alist);
         }
 
-        ac->addr = NULL;
         ac->alist = NULL;
         ac->begun = false;
         return ac->error;
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index ac9da1e4050e..e5b596bd8acf 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -653,7 +653,6 @@ struct afs_interface {
  */
 struct afs_addr_cursor {
         struct afs_addr_list    *alist;         /* Current address list (pins ref) */
-        struct sockaddr_rxrpc   *addr;
         u32                     abort_code;
         unsigned short          start;          /* Starting point in alist->addrs[] */
         unsigned short          index;          /* Wrapping offset from start to current addr */
diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index 444ba0d511ef..42e1ea7372e9 100644
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -359,7 +359,7 @@ static int afs_send_pages(struct afs_call *call, struct msghdr *msg)
 long afs_make_call(struct afs_addr_cursor *ac, struct afs_call *call,
                    gfp_t gfp, bool async)
 {
-        struct sockaddr_rxrpc *srx = ac->addr;
+        struct sockaddr_rxrpc *srx = &ac->alist->addrs[ac->index];
         struct rxrpc_call *rxcall;
         struct msghdr msg;
         struct kvec iov[1];
diff --git a/fs/afs/server.c b/fs/afs/server.c
index aa35cfae5440..7c1be8b4dc9a 100644
--- a/fs/afs/server.c
+++ b/fs/afs/server.c
@@ -367,7 +367,6 @@ static void afs_destroy_server(struct afs_net *net, struct afs_server *server)
                 .alist  = alist,
                 .start  = alist->index,
                 .index  = 0,
-                .addr   = &alist->addrs[alist->index],
                 .error  = 0,
         };
         _enter("%p", server);
@@ -518,7 +517,6 @@ static bool afs_do_probe_fileserver(struct afs_fs_cursor *fc)
 
         _enter("");
 
-        fc->ac.addr = NULL;
         fc->ac.start = READ_ONCE(fc->ac.alist->index);
         fc->ac.index = fc->ac.start;
         fc->ac.error = 0;
diff --git a/fs/afs/vl_rotate.c b/fs/afs/vl_rotate.c
index 5b99ea7be194..ead6dedbb561 100644
--- a/fs/afs/vl_rotate.c
+++ b/fs/afs/vl_rotate.c
@@ -209,7 +209,7 @@ iterate_address:
         if (!afs_iterate_addresses(&vc->ac))
                 goto next_server;
 
-        _leave(" = t %pISpc", &vc->ac.addr->transport);
+        _leave(" = t %pISpc", &vc->ac.alist->addrs[vc->ac.index].transport);
         return true;
 
 next_server:
diff --git a/fs/afs/volume.c b/fs/afs/volume.c
index f0020e35bf6f..7527c081726e 100644
--- a/fs/afs/volume.c
+++ b/fs/afs/volume.c
@@ -88,16 +88,16 @@ static struct afs_vldb_entry *afs_vl_lookup_vldb(struct afs_cell *cell,
                         case VL_SERVICE:
                                 clear_bit(vc.ac.index, &vc.ac.alist->yfs);
                                 set_bit(vc.ac.index, &vc.ac.alist->probed);
-                                vc.ac.addr->srx_service = ret;
+                                vc.ac.alist->addrs[vc.ac.index].srx_service = ret;
                                 break;
                         case YFS_VL_SERVICE:
                                 set_bit(vc.ac.index, &vc.ac.alist->yfs);
                                 set_bit(vc.ac.index, &vc.ac.alist->probed);
-                                vc.ac.addr->srx_service = ret;
+                                vc.ac.alist->addrs[vc.ac.index].srx_service = ret;
                                 break;
                         }
                 }
-                
+
                 vldb = afs_vl_get_entry_by_name_u(&vc, volname, volnamesz);
         }