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afs: Don't use VL probe running state to make decisions outside probe code

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Don't use the running state for VL server probes to make decisions about
which server to use as the state is cleared at the start of a probe and
intermediate values might also be misleading.

Instead, add a separate 'latest known' rtt in the afs_vlserver struct and a
flag to indicate if the server is known to be responding and update these
as and when we know what to change them to.

Fixes: 3bf0fb6f33 ("afs: Probe multiple fileservers simultaneously")
Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2020-08-19 15:27:17 +01:00
parent fb72cd3d48
commit b95b30940e
5 changed files with 47 additions and 21 deletions
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2
fs/afs/proc.c
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@@ -310,7 +310,7 @@ static int afs_proc_cell_vlservers_show(struct seq_file *m, void *v)
alist->preferred == i ? '>' : '-',
&alist->addrs[i].transport);
}
seq_printf(m, " info: fl=%lx rtt=%d\n", vlserver->flags, vlserver->probe.rtt);
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",
vlserver->probe.flags, vlserver->probe.error,
vlserver->probe.abort_code,