Unify the error handling in nfs4_open_delegation_recall and
nfs4_lock_delegation_recall.
Signed-off-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
---
fs/nfs/delegation.c | 6 ++--
fs/nfs/delegation.h | 2 +-
fs/nfs/nfs4proc.c | 79 +++++++++++++++++------------------------------------
3 files changed, 29 insertions(+), 58 deletions(-)
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 6390a4b..fc8a213 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -64,7 +64,7 @@ int nfs4_have_delegation(struct inode *inode, fmode_t flags)
return ret;
}
-static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_state *state)
+static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid)
{
struct inode *inode = state->inode;
struct file_lock *fl;
@@ -83,7 +83,7 @@ static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_
if (nfs_file_open_context(fl->fl_file) != ctx)
continue;
unlock_flocks();
- status = nfs4_lock_delegation_recall(state, fl);
+ status = nfs4_lock_delegation_recall(fl, state, stateid);
if (status < 0)
goto out;
lock_flocks();
@@ -120,7 +120,7 @@ again:
seq = raw_seqcount_begin(&sp->so_reclaim_seqcount);
err = nfs4_open_delegation_recall(ctx, state, stateid);
if (!err)
- err = nfs_delegation_claim_locks(ctx, state);
+ err = nfs_delegation_claim_locks(ctx, state, stateid);
if (!err && read_seqcount_retry(&sp->so_reclaim_seqcount, seq))
err = -EAGAIN;
mutex_unlock(&sp->so_delegreturn_mutex);
diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h
index d54d4fc..88573d1 100644
--- a/fs/nfs/delegation.h
+++ b/fs/nfs/delegation.h
@@ -53,7 +53,7 @@ void nfs_delegation_reap_unclaimed(struct nfs_client *clp);
/* NFSv4 delegation-related procedures */
int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid, int issync);
int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid);
-int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl);
+int nfs4_lock_delegation_recall(struct file_lock *fl, struct nfs4_state *state, const nfs4_stateid *stateid);
bool nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode, fmode_t flags);
void nfs_mark_delegation_referenced(struct nfs_delegation *delegation);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index b5ebf8c..e3b8848 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1379,19 +1379,8 @@ static int nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *sta
return ret;
}
-int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid)
+static int nfs4_handle_delegation_recall_error(struct nfs_server *server, struct nfs4_state *state, const nfs4_stateid *stateid, int err)
{
- struct nfs_server *server = NFS_SERVER(state->inode);
- struct nfs4_opendata *opendata;
- int err;
-
- opendata = nfs4_open_recoverdata_alloc(ctx, state,
- NFS4_OPEN_CLAIM_DELEG_CUR_FH);
- if (IS_ERR(opendata))
- return PTR_ERR(opendata);
- nfs4_stateid_copy(&opendata->o_arg.u.delegation, stateid);
- err = nfs4_open_recover(opendata, state);
- nfs4_opendata_put(opendata);
switch (err) {
default:
printk(KERN_ERR "NFS: %s: unhandled error "
@@ -1418,20 +1407,40 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
+ case -NFS4ERR_OPENMODE:
nfs_inode_find_state_and_recover(state->inode,
stateid);
nfs4_schedule_stateid_recovery(server, state);
- case -ENOMEM:
return 0;
case -NFS4ERR_DELAY:
case -NFS4ERR_GRACE:
set_bit(NFS_DELEGATED_STATE, &state->flags);
ssleep(1);
return -EAGAIN;
+ case -ENOMEM:
+ case -NFS4ERR_DENIED:
+ /* kill_proc(fl->fl_pid, SIGLOST, 1); */
+ return 0;
}
return err;
}
+int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid)
+{
+ struct nfs_server *server = NFS_SERVER(state->inode);
+ struct nfs4_opendata *opendata;
+ int err;
+
+ opendata = nfs4_open_recoverdata_alloc(ctx, state,
+ NFS4_OPEN_CLAIM_DELEG_CUR_FH);
+ if (IS_ERR(opendata))
+ return PTR_ERR(opendata);
+ nfs4_stateid_copy(&opendata->o_arg.u.delegation, stateid);
+ err = nfs4_open_recover(opendata, state);
+ nfs4_opendata_put(opendata);
+ return nfs4_handle_delegation_recall_error(server, state, stateid, err);
+}
+
static void nfs4_open_confirm_done(struct rpc_task *task, void *calldata)
{
struct nfs4_opendata *data = calldata;
@@ -5147,54 +5156,16 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request)
return status;
}
-int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
+int nfs4_lock_delegation_recall(struct file_lock *fl, struct nfs4_state *state, const nfs4_stateid *stateid)
{
struct nfs_server *server = NFS_SERVER(state->inode);
int err;
err = nfs4_set_lock_state(state, fl);
if (err != 0)
- goto out;
+ return err;
err = _nfs4_do_setlk(state, F_SETLK, fl, NFS_LOCK_NEW);
- switch (err) {
- default:
- printk(KERN_ERR "NFS: %s: unhandled error "
- "%d.\n", __func__, err);
- case 0:
- case -ESTALE:
- goto out;
- case -NFS4ERR_STALE_CLIENTID:
- case -NFS4ERR_STALE_STATEID:
- set_bit(NFS_DELEGATED_STATE, &state->flags);
- case -NFS4ERR_EXPIRED:
- nfs4_schedule_lease_recovery(server->nfs_client);
- return -EAGAIN;
- case -NFS4ERR_BADSESSION:
- case -NFS4ERR_BADSLOT:
- case -NFS4ERR_BAD_HIGH_SLOT:
- case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
- case -NFS4ERR_DEADSESSION:
- set_bit(NFS_DELEGATED_STATE, &state->flags);
- nfs4_schedule_session_recovery(server->nfs_client->cl_session, err);
- return -EAGAIN;
- case -NFS4ERR_DELEG_REVOKED:
- case -NFS4ERR_ADMIN_REVOKED:
- case -NFS4ERR_BAD_STATEID:
- case -NFS4ERR_OPENMODE:
- nfs4_schedule_stateid_recovery(server, state);
- return 0;
- case -NFS4ERR_DELAY:
- case -NFS4ERR_GRACE:
- set_bit(NFS_DELEGATED_STATE, &state->flags);
- ssleep(1);
- return -EAGAIN;
- case -ENOMEM:
- case -NFS4ERR_DENIED:
- /* kill_proc(fl->fl_pid, SIGLOST, 1); */
- return 0;
- }
-out:
- return err;
+ return nfs4_handle_delegation_recall_error(server, state, stateid, err);
}
struct nfs_release_lockowner_data {
--
1.8.1.4
--
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