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NFSv4.1: Don't decrease the value of seq_nr_highest_sent

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commit f07a5d2427 upstream.

When we're trying to figure out what the server may or may not have seen
in terms of request numbers, do not assume that requests with a larger
number were missed, just because we saw a reply to a request with a
smaller number.

Fixes: 3453d5708b ("NFSv4.1: Avoid false retries when RPC calls are interrupted")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Trond Myklebust 2022-07-12 09:16:04 -04:00 committed by Greg Kroah-Hartman
parent 2c8477600c
commit 68a84001f7
1 changed files with 2 additions and 3 deletions
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5
fs/nfs/nfs4proc.c
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@ -779,10 +779,9 @@ static void nfs4_slot_sequence_record_sent(struct nfs4_slot *slot,
if ((s32)(seqnr - slot->seq_nr_highest_sent) > 0)
slot->seq_nr_highest_sent = seqnr;
}
static void nfs4_slot_sequence_acked(struct nfs4_slot *slot,
u32 seqnr)
static void nfs4_slot_sequence_acked(struct nfs4_slot *slot, u32 seqnr)
{
slot->seq_nr_highest_sent = seqnr;
nfs4_slot_sequence_record_sent(slot, seqnr);
slot->seq_nr_last_acked = seqnr;
}