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| author |   Olga Kornievskaia <kolga@netapp.com> | 2017-03-30 13:49:03 -0400 |
|---|---|---|
| committer |   Anna Schumaker <Anna.Schumaker@Netapp.com> | 2017-03-31 13:30:21 -0400 |
| commit | 0e3d3e5df07dcf8a50d96e0ecd6ab9a888f55dfc (patch) | |
| tree | d10cf2a0cc9032cbeb4aae28e01a61fbfa4f2f21 /fs | |
| parent | PNFS fix fallback to MDS if got error on commit to DS (diff) | |
| download | linux-dev-0e3d3e5df07dcf8a50d96e0ecd6ab9a888f55dfc.tar.xz linux-dev-0e3d3e5df07dcf8a50d96e0ecd6ab9a888f55dfc.zip | |
NFSv4.1 fix infinite loop on IO BAD_STATEID error
Commit 63d63cbf5e03 "NFSv4.1: Don't recheck delegations that
have already been checked" introduced a regression where when a
client received BAD_STATEID error it would not send any TEST_STATEID
and instead go into an infinite loop of resending the IO that caused
the BAD_STATEID.
Fixes: 63d63cbf5e03 ("NFSv4.1: Don't recheck delegations that have already been checked")
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Cc: stable@vger.kernel.org # 4.9+
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfs/nfs4proc.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index c780d98035cc..201ca3f2c4ba 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -2442,17 +2442,14 @@ static void nfs41_check_delegation_stateid(struct nfs4_state *state) } nfs4_stateid_copy(&stateid, &delegation->stateid); - if (test_bit(NFS_DELEGATION_REVOKED, &delegation->flags)) { + if (test_bit(NFS_DELEGATION_REVOKED, &delegation->flags) || + !test_and_clear_bit(NFS_DELEGATION_TEST_EXPIRED, + &delegation->flags)) { rcu_read_unlock(); nfs_finish_clear_delegation_stateid(state, &stateid); return; } - if (!test_and_clear_bit(NFS_DELEGATION_TEST_EXPIRED, &delegation->flags)) { - rcu_read_unlock(); - return; - } - cred = get_rpccred(delegation->cred); rcu_read_unlock(); status = nfs41_test_and_free_expired_stateid(server, &stateid, cred); |