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Diffstat (limited to 'fs/nfs/nfs4proc.c')
-rw-r--r--fs/nfs/nfs4proc.c65
1 files changed, 42 insertions, 23 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 288be08..45bce9e 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -77,7 +77,7 @@ struct nfs4_opendata;
static int _nfs4_proc_open(struct nfs4_opendata *data);
static int _nfs4_recover_proc_open(struct nfs4_opendata *data);
static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *);
-static int nfs4_async_handle_error(struct rpc_task *, const struct nfs_server *, struct nfs4_state *);
+static int nfs4_async_handle_error(struct rpc_task *, const struct nfs_server *, struct nfs4_state *, long *);
static void nfs_fixup_referral_attributes(struct nfs_fattr *fattr);
static int nfs4_proc_getattr(struct nfs_server *, struct nfs_fh *, struct nfs_fattr *, struct nfs4_label *label);
static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr, struct nfs4_label *label);
@@ -314,20 +314,30 @@ static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dent
kunmap_atomic(start);
}
+static long nfs4_update_delay(long *timeout)
+{
+ long ret;
+ if (!timeout)
+ return NFS4_POLL_RETRY_MAX;
+ if (*timeout <= 0)
+ *timeout = NFS4_POLL_RETRY_MIN;
+ if (*timeout > NFS4_POLL_RETRY_MAX)
+ *timeout = NFS4_POLL_RETRY_MAX;
+ ret = *timeout;
+ *timeout <<= 1;
+ return ret;
+}
+
static int nfs4_delay(struct rpc_clnt *clnt, long *timeout)
{
int res = 0;
might_sleep();
- if (*timeout <= 0)
- *timeout = NFS4_POLL_RETRY_MIN;
- if (*timeout > NFS4_POLL_RETRY_MAX)
- *timeout = NFS4_POLL_RETRY_MAX;
- freezable_schedule_timeout_killable_unsafe(*timeout);
+ freezable_schedule_timeout_killable_unsafe(
+ nfs4_update_delay(timeout));
if (fatal_signal_pending(current))
res = -ERESTARTSYS;
- *timeout <<= 1;
return res;
}
@@ -2583,7 +2593,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
if (calldata->arg.fmode == 0)
break;
default:
- if (nfs4_async_handle_error(task, server, state) == -EAGAIN) {
+ if (nfs4_async_handle_error(task, server, state, NULL) == -EAGAIN) {
rpc_restart_call_prepare(task);
goto out_release;
}
@@ -3572,7 +3582,8 @@ static int nfs4_proc_unlink_done(struct rpc_task *task, struct inode *dir)
if (!nfs4_sequence_done(task, &res->seq_res))
return 0;
- if (nfs4_async_handle_error(task, res->server, NULL) == -EAGAIN)
+ if (nfs4_async_handle_error(task, res->server, NULL,
+ &data->timeout) == -EAGAIN)
return 0;
update_changeattr(dir, &res->cinfo);
return 1;
@@ -3605,7 +3616,7 @@ static int nfs4_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
if (!nfs4_sequence_done(task, &res->seq_res))
return 0;
- if (nfs4_async_handle_error(task, res->server, NULL) == -EAGAIN)
+ if (nfs4_async_handle_error(task, res->server, NULL, &data->timeout) == -EAGAIN)
return 0;
update_changeattr(old_dir, &res->old_cinfo);
@@ -4109,7 +4120,8 @@ static int nfs4_read_done_cb(struct rpc_task *task, struct nfs_pgio_header *hdr)
trace_nfs4_read(hdr, task->tk_status);
if (nfs4_async_handle_error(task, server,
- hdr->args.context->state) == -EAGAIN) {
+ hdr->args.context->state,
+ NULL) == -EAGAIN) {
rpc_restart_call_prepare(task);
return -EAGAIN;
}
@@ -4177,10 +4189,11 @@ static int nfs4_write_done_cb(struct rpc_task *task,
struct nfs_pgio_header *hdr)
{
struct inode *inode = hdr->inode;
-
+
trace_nfs4_write(hdr, task->tk_status);
if (nfs4_async_handle_error(task, NFS_SERVER(inode),
- hdr->args.context->state) == -EAGAIN) {
+ hdr->args.context->state,
+ NULL) == -EAGAIN) {
rpc_restart_call_prepare(task);
return -EAGAIN;
}
@@ -4260,7 +4273,8 @@ static int nfs4_commit_done_cb(struct rpc_task *task, struct nfs_commit_data *da
struct inode *inode = data->inode;
trace_nfs4_commit(data, task->tk_status);
- if (nfs4_async_handle_error(task, NFS_SERVER(inode), NULL) == -EAGAIN) {
+ if (nfs4_async_handle_error(task, NFS_SERVER(inode),
+ NULL, NULL) == -EAGAIN) {
rpc_restart_call_prepare(task);
return -EAGAIN;
}
@@ -4813,7 +4827,8 @@ out:
static int
-nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs4_state *state)
+nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
+ struct nfs4_state *state, long *timeout)
{
struct nfs_client *clp = server->nfs_client;
@@ -4863,6 +4878,8 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
#endif /* CONFIG_NFS_V4_1 */
case -NFS4ERR_DELAY:
nfs_inc_server_stats(server, NFSIOS_DELAY);
+ rpc_delay(task, nfs4_update_delay(timeout));
+ goto restart_call;
case -NFS4ERR_GRACE:
rpc_delay(task, NFS4_POLL_RETRY_MAX);
case -NFS4ERR_RETRY_UNCACHED_REP:
@@ -5103,8 +5120,8 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata)
pnfs_roc_set_barrier(data->inode, data->roc_barrier);
break;
default:
- if (nfs4_async_handle_error(task, data->res.server, NULL) ==
- -EAGAIN) {
+ if (nfs4_async_handle_error(task, data->res.server,
+ NULL, NULL) == -EAGAIN) {
rpc_restart_call_prepare(task);
return;
}
@@ -5368,7 +5385,8 @@ static void nfs4_locku_done(struct rpc_task *task, void *data)
case -NFS4ERR_EXPIRED:
break;
default:
- if (nfs4_async_handle_error(task, calldata->server, NULL) == -EAGAIN)
+ if (nfs4_async_handle_error(task, calldata->server,
+ NULL, NULL) == -EAGAIN)
rpc_restart_call_prepare(task);
}
nfs_release_seqid(calldata->arg.seqid);
@@ -5974,7 +5992,8 @@ static void nfs4_release_lockowner_done(struct rpc_task *task, void *calldata)
break;
case -NFS4ERR_LEASE_MOVED:
case -NFS4ERR_DELAY:
- if (nfs4_async_handle_error(task, server, NULL) == -EAGAIN)
+ if (nfs4_async_handle_error(task, server,
+ NULL, NULL) == -EAGAIN)
rpc_restart_call_prepare(task);
}
}
@@ -7591,7 +7610,7 @@ static void nfs4_layoutget_done(struct rpc_task *task, void *calldata)
rpc_restart_call_prepare(task);
}
}
- if (nfs4_async_handle_error(task, server, state) == -EAGAIN)
+ if (nfs4_async_handle_error(task, server, state, NULL) == -EAGAIN)
rpc_restart_call_prepare(task);
out:
dprintk("<-- %s\n", __func__);
@@ -7751,7 +7770,7 @@ static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata)
case 0:
break;
case -NFS4ERR_DELAY:
- if (nfs4_async_handle_error(task, server, NULL) != -EAGAIN)
+ if (nfs4_async_handle_error(task, server, NULL, NULL) != -EAGAIN)
break;
rpc_restart_call_prepare(task);
return;
@@ -7882,7 +7901,7 @@ nfs4_layoutcommit_done(struct rpc_task *task, void *calldata)
case 0:
break;
default:
- if (nfs4_async_handle_error(task, server, NULL) == -EAGAIN) {
+ if (nfs4_async_handle_error(task, server, NULL, NULL) == -EAGAIN) {
rpc_restart_call_prepare(task);
return;
}
@@ -8178,7 +8197,7 @@ static void nfs41_free_stateid_done(struct rpc_task *task, void *calldata)
switch (task->tk_status) {
case -NFS4ERR_DELAY:
- if (nfs4_async_handle_error(task, data->server, NULL) == -EAGAIN)
+ if (nfs4_async_handle_error(task, data->server, NULL, NULL) == -EAGAIN)
rpc_restart_call_prepare(task);
}
}
generated by cgit v0.10.2 at 2024-11-15 08:34:12 (GMT)