From: Trond Myklebust <trond.myklebust@primarydata.com>
To: linux-nfs@vger.kernel.org
Cc: Fred Isaman <fred.isaman@gmail.com>
Subject: [PATCH] NFSv4.1: Fix regression in callback retry handling
Date: Thu, 1 Dec 2016 17:07:53 -0500 [thread overview]
Message-ID: <20161201220753.12854-1-trond.myklebust@primarydata.com> (raw)
From: Fred Isaman <fred.isaman@gmail.com>
When initializing a freshly created slot for the calllback channel,
the seq_nr needs to be 0, not 1. Otherwise validate_seqid
and nfs4_slot_wait_on_seqid get confused and believe that the
mpty slot corresponds to a previously sent reply.
Signed-off-by: Fred Isaman <fred.isaman@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
fs/nfs/nfs4session.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/nfs/nfs4session.c b/fs/nfs/nfs4session.c
index a61350f75c74..769b85655c4b 100644
--- a/fs/nfs/nfs4session.c
+++ b/fs/nfs/nfs4session.c
@@ -169,7 +169,7 @@ bool nfs4_try_to_lock_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot)
struct nfs4_slot *nfs4_lookup_slot(struct nfs4_slot_table *tbl, u32 slotid)
{
if (slotid <= tbl->max_slotid)
- return nfs4_find_or_create_slot(tbl, slotid, 1, GFP_NOWAIT);
+ return nfs4_find_or_create_slot(tbl, slotid, 0, GFP_NOWAIT);
return ERR_PTR(-E2BIG);
}
--
2.9.3
reply other threads:[~2016-12-01 22:07 UTC|newest]
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