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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-09-22 13:38:56 -0400 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2016-09-27 14:32:59 -0400 |
| commit | 43912bbbae26ed258cc1d5c39b9727cd8ae60783 (patch) | |
| tree | 76bcfafb1b8c1a3eb76e321aa7811cea0717d877 /fs/nfs | |
| parent | 4c8e5447465c9cf92ff1c5e36e8f316b69d46aa8 (diff) | |
| download | linux-43912bbbae26ed258cc1d5c39b9727cd8ae60783.tar.gz linux-43912bbbae26ed258cc1d5c39b9727cd8ae60783.tar.bz2 linux-43912bbbae26ed258cc1d5c39b9727cd8ae60783.zip | |
NFSv4.1: Allow test_stateid to handle session errors without waiting
If the server crashes while we're testing stateids for validity, then
we want to initiate session recovery. Usually, we will be calling from
a state manager thread, though, so we don't really want to wait.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Tested-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/nfs4proc.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 6bbcd2f24e22..7f4d0ad27ddc 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -8797,6 +8797,23 @@ static int _nfs41_test_stateid(struct nfs_server *server, return -res.status; } +static void nfs4_handle_delay_or_session_error(struct nfs_server *server, + int err, struct nfs4_exception *exception) +{ + exception->retry = 0; + switch(err) { + case -NFS4ERR_DELAY: + nfs4_handle_exception(server, err, exception); + break; + case -NFS4ERR_BADSESSION: + case -NFS4ERR_BADSLOT: + case -NFS4ERR_BAD_HIGH_SLOT: + case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION: + case -NFS4ERR_DEADSESSION: + nfs4_do_handle_exception(server, err, exception); + } +} + /** * nfs41_test_stateid - perform a TEST_STATEID operation * @@ -8816,9 +8833,7 @@ static int nfs41_test_stateid(struct nfs_server *server, int err; do { err = _nfs41_test_stateid(server, stateid, cred); - if (err != -NFS4ERR_DELAY) - break; - nfs4_handle_exception(server, err, &exception); + nfs4_handle_delay_or_session_error(server, err, &exception); } while (exception.retry); return err; } |