diff options
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/netns.h | 1 | ||||
| -rw-r--r-- | fs/nfsd/nfs4proc.c | 4 | ||||
| -rw-r--r-- | fs/nfsd/nfs4state.c | 31 | ||||
| -rw-r--r-- | fs/nfsd/nfsctl.c | 1 |
4 files changed, 36 insertions, 1 deletions
diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h index 36358d435cb0..426f55005697 100644 --- a/fs/nfsd/netns.h +++ b/fs/nfsd/netns.h @@ -102,6 +102,7 @@ struct nfsd_net { time_t nfsd4_lease; time_t nfsd4_grace; + bool somebody_reclaimed; bool nfsd_net_up; bool lockd_up; diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 5d99e8810b85..1929f85b8269 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -354,6 +354,7 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct svc_fh *resfh = NULL; struct net *net = SVC_NET(rqstp); struct nfsd_net *nn = net_generic(net, nfsd_net_id); + bool reclaim = false; dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n", (int)open->op_fname.len, open->op_fname.data, @@ -424,6 +425,7 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, if (status) goto out; open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; + reclaim = true; case NFS4_OPEN_CLAIM_FH: case NFS4_OPEN_CLAIM_DELEG_CUR_FH: status = do_open_fhandle(rqstp, cstate, open); @@ -452,6 +454,8 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, WARN(status && open->op_created, "nfsd4_process_open2 failed to open newly-created file! status=%u\n", be32_to_cpu(status)); + if (reclaim && !status) + nn->somebody_reclaimed = true; out: if (resfh && resfh != &cstate->current_fh) { fh_dup2(&cstate->current_fh, resfh); diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 857141446d6b..9b2ce80abee0 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -4693,6 +4693,28 @@ nfsd4_end_grace(struct nfsd_net *nn) */ } +/* + * If we've waited a lease period but there are still clients trying to + * reclaim, wait a little longer to give them a chance to finish. + */ +static bool clients_still_reclaiming(struct nfsd_net *nn) +{ + unsigned long now = get_seconds(); + unsigned long double_grace_period_end = nn->boot_time + + 2 * nn->nfsd4_lease; + + if (!nn->somebody_reclaimed) + return false; + nn->somebody_reclaimed = false; + /* + * If we've given them *two* lease times to reclaim, and they're + * still not done, give up: + */ + if (time_after(now, double_grace_period_end)) + return false; + return true; +} + static time_t nfs4_laundromat(struct nfsd_net *nn) { @@ -4706,6 +4728,11 @@ nfs4_laundromat(struct nfsd_net *nn) time_t t, new_timeo = nn->nfsd4_lease; dprintk("NFSD: laundromat service - starting\n"); + + if (clients_still_reclaiming(nn)) { + new_timeo = 0; + goto out; + } nfsd4_end_grace(nn); INIT_LIST_HEAD(&reaplist); spin_lock(&nn->client_lock); @@ -4803,7 +4830,7 @@ nfs4_laundromat(struct nfsd_net *nn) posix_unblock_lock(&nbl->nbl_lock); free_blocked_lock(nbl); } - +out: new_timeo = max_t(time_t, new_timeo, NFSD_LAUNDROMAT_MINTIMEOUT); return new_timeo; } @@ -6053,6 +6080,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, case 0: /* success! */ nfs4_inc_and_copy_stateid(&lock->lk_resp_stateid, &lock_stp->st_stid); status = 0; + if (lock->lk_reclaim) + nn->somebody_reclaimed = true; break; case FILE_LOCK_DEFERRED: nbl = NULL; diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index d107b4426f7e..5f22476cf371 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -1239,6 +1239,7 @@ static __net_init int nfsd_init_net(struct net *net) goto out_idmap_error; nn->nfsd4_lease = 90; /* default lease time */ nn->nfsd4_grace = 90; + nn->somebody_reclaimed = false; nn->clverifier_counter = prandom_u32(); nn->clientid_counter = prandom_u32(); |