diff options
| author | Andy Adamson <andros@netapp.com> | 2013-06-19 16:39:44 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-06-20 10:19:21 -0400 |
| commit | 62f288a02f97bd9f6b2361a6fff709729fe9e110 (patch) | |
| tree | e31c125128ac6353e1a755e1a01999f5084d8393 /fs/nfs/nfs4state.c | |
| parent | 7dc0ac70f89d4281094aaa82cab1cb995f298287 (diff) | |
NFSv4.1 end back channel session draining
We need to ensure that we clear NFS4_SLOT_TBL_DRAINING on the back
channel when we're done recovering the session.
Regression introduced by commit 774d5f14e (NFSv4.1 Fix a pNFS session
draining deadlock)
Signed-off-by: Andy Adamson <andros@netapp.com>
[Trond: Changed order to start back-channel first. Minor code cleanup]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org [>=3.10]
Diffstat (limited to 'fs/nfs/nfs4state.c')
| -rw-r--r-- | fs/nfs/nfs4state.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 5244ffd304e8..b0e42d7a19a1 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -228,19 +228,8 @@ static int nfs41_setup_state_renewal(struct nfs_client *clp) return status; } -/* - * Back channel returns NFS4ERR_DELAY for new requests when - * NFS4_SESSION_DRAINING is set so there is no work to be done when draining - * is ended. - */ -static void nfs4_end_drain_session(struct nfs_client *clp) +static void nfs4_end_drain_slot_table(struct nfs4_slot_table *tbl) { - struct nfs4_session *ses = clp->cl_session; - struct nfs4_slot_table *tbl; - - if (ses == NULL) - return; - tbl = &ses->fc_slot_table; if (test_and_clear_bit(NFS4_SLOT_TBL_DRAINING, &tbl->slot_tbl_state)) { spin_lock(&tbl->slot_tbl_lock); nfs41_wake_slot_table(tbl); @@ -248,6 +237,16 @@ static void nfs4_end_drain_session(struct nfs_client *clp) } } +static void nfs4_end_drain_session(struct nfs_client *clp) +{ + struct nfs4_session *ses = clp->cl_session; + + if (ses != NULL) { + nfs4_end_drain_slot_table(&ses->bc_slot_table); + nfs4_end_drain_slot_table(&ses->fc_slot_table); + } +} + /* * Signal state manager thread if session fore channel is drained */ |