diff options
author | David Howells <dhowells@redhat.com> | 2023-10-19 14:55:11 +0300 |
---|---|---|
committer | David Howells <dhowells@redhat.com> | 2023-12-24 18:22:50 +0300 |
commit | 72904d7b9bfbf2dd146254edea93958bc35bbbfe (patch) | |
tree | a9197b28592603c4805f30965322f6fc6cfd2fb7 /fs/afs/proc.c | |
parent | 07f3502b33a260f873e35708d2fa693eb52225cb (diff) | |
download | linux-72904d7b9bfbf2dd146254edea93958bc35bbbfe.tar.xz |
rxrpc, afs: Allow afs to pin rxrpc_peer objects
Change rxrpc's API such that:
(1) A new function, rxrpc_kernel_lookup_peer(), is provided to look up an
rxrpc_peer record for a remote address and a corresponding function,
rxrpc_kernel_put_peer(), is provided to dispose of it again.
(2) When setting up a call, the rxrpc_peer object used during a call is
now passed in rather than being set up by rxrpc_connect_call(). For
afs, this meenat passing it to rxrpc_kernel_begin_call() rather than
the full address (the service ID then has to be passed in as a
separate parameter).
(3) A new function, rxrpc_kernel_remote_addr(), is added so that afs can
get a pointer to the transport address for display purposed, and
another, rxrpc_kernel_remote_srx(), to gain a pointer to the full
rxrpc address.
(4) The function to retrieve the RTT from a call, rxrpc_kernel_get_srtt(),
is then altered to take a peer. This now returns the RTT or -1 if
there are insufficient samples.
(5) Rename rxrpc_kernel_get_peer() to rxrpc_kernel_call_get_peer().
(6) Provide a new function, rxrpc_kernel_get_peer(), to get a ref on a
peer the caller already has.
This allows the afs filesystem to pin the rxrpc_peer records that it is
using, allowing faster lookups and pointer comparisons rather than
comparing sockaddr_rxrpc contents. It also makes it easier to get hold of
the RTT. The following changes are made to afs:
(1) The addr_list struct's addrs[] elements now hold a peer struct pointer
and a service ID rather than a sockaddr_rxrpc.
(2) When displaying the transport address, rxrpc_kernel_remote_addr() is
used.
(3) The port arg is removed from afs_alloc_addrlist() since it's always
overridden.
(4) afs_merge_fs_addr4() and afs_merge_fs_addr6() do peer lookup and may
now return an error that must be handled.
(5) afs_find_server() now takes a peer pointer to specify the address.
(6) afs_find_server(), afs_compare_fs_alists() and afs_merge_fs_addr[46]{}
now do peer pointer comparison rather than address comparison.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Diffstat (limited to 'fs/afs/proc.c')
-rw-r--r-- | fs/afs/proc.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/afs/proc.c b/fs/afs/proc.c index ab9cd986cfd9..8a65a06908d2 100644 --- a/fs/afs/proc.c +++ b/fs/afs/proc.c @@ -307,7 +307,7 @@ static int afs_proc_cell_vlservers_show(struct seq_file *m, void *v) for (i = 0; i < alist->nr_addrs; i++) seq_printf(m, " %c %pISpc\n", alist->preferred == i ? '>' : '-', - &alist->addrs[i].srx.transport); + rxrpc_kernel_remote_addr(alist->addrs[i].peer)); } seq_printf(m, " info: fl=%lx rtt=%d\n", vlserver->flags, vlserver->rtt); seq_printf(m, " probe: fl=%x e=%d ac=%d out=%d\n", @@ -398,9 +398,10 @@ static int afs_proc_servers_show(struct seq_file *m, void *v) seq_printf(m, " - ALIST v=%u rsp=%lx f=%lx\n", alist->version, alist->responded, alist->failed); for (i = 0; i < alist->nr_addrs; i++) - seq_printf(m, " [%x] %pISpc%s\n", - i, &alist->addrs[i].srx.transport, - alist->preferred == i ? "*" : ""); + seq_printf(m, " [%x] %pISpc%s rtt=%d\n", + i, rxrpc_kernel_remote_addr(alist->addrs[i].peer), + alist->preferred == i ? "*" : "", + rxrpc_kernel_get_srtt(alist->addrs[i].peer)); return 0; } |