summaryrefslogtreecommitdiffstats
path: root/fs/nfsd/nfs4proc.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/nfsd/nfs4proc.c')
-rw-r--r--fs/nfsd/nfs4proc.c84
1 files changed, 69 insertions, 15 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 2927b1263f..2e39cf2e50 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1737,7 +1737,7 @@ static void cleanup_async_copy(struct nfsd4_copy *copy)
nfs4_put_copy(copy);
}
-static void nfsd4_send_cb_offload(struct nfsd4_copy *copy, __be32 nfserr)
+static void nfsd4_send_cb_offload(struct nfsd4_copy *copy)
{
struct nfsd4_cb_offload *cbo;
@@ -1747,12 +1747,12 @@ static void nfsd4_send_cb_offload(struct nfsd4_copy *copy, __be32 nfserr)
memcpy(&cbo->co_res, &copy->cp_res, sizeof(copy->cp_res));
memcpy(&cbo->co_fh, &copy->fh, sizeof(copy->fh));
- cbo->co_nfserr = nfserr;
+ cbo->co_nfserr = copy->nfserr;
nfsd4_init_cb(&cbo->co_cb, copy->cp_clp, &nfsd4_cb_offload_ops,
NFSPROC4_CLNT_CB_OFFLOAD);
trace_nfsd_cb_offload(copy->cp_clp, &cbo->co_res.cb_stateid,
- &cbo->co_fh, copy->cp_count, nfserr);
+ &cbo->co_fh, copy->cp_count, copy->nfserr);
nfsd4_run_cb(&cbo->co_cb);
}
@@ -1766,7 +1766,6 @@ static void nfsd4_send_cb_offload(struct nfsd4_copy *copy, __be32 nfserr)
static int nfsd4_do_async_copy(void *data)
{
struct nfsd4_copy *copy = (struct nfsd4_copy *)data;
- __be32 nfserr;
trace_nfsd_copy_do_async(copy);
if (nfsd4_ssc_is_inter(copy)) {
@@ -1777,24 +1776,25 @@ static int nfsd4_do_async_copy(void *data)
if (IS_ERR(filp)) {
switch (PTR_ERR(filp)) {
case -EBADF:
- nfserr = nfserr_wrong_type;
+ copy->nfserr = nfserr_wrong_type;
break;
default:
- nfserr = nfserr_offload_denied;
+ copy->nfserr = nfserr_offload_denied;
}
/* ss_mnt will be unmounted by the laundromat */
goto do_callback;
}
- nfserr = nfsd4_do_copy(copy, filp, copy->nf_dst->nf_file,
- false);
+ copy->nfserr = nfsd4_do_copy(copy, filp, copy->nf_dst->nf_file,
+ false);
nfsd4_cleanup_inter_ssc(copy->ss_nsui, filp, copy->nf_dst);
} else {
- nfserr = nfsd4_do_copy(copy, copy->nf_src->nf_file,
- copy->nf_dst->nf_file, false);
+ copy->nfserr = nfsd4_do_copy(copy, copy->nf_src->nf_file,
+ copy->nf_dst->nf_file, false);
}
do_callback:
- nfsd4_send_cb_offload(copy, nfserr);
+ set_bit(NFSD4_COPY_F_COMPLETED, &copy->cp_flags);
+ nfsd4_send_cb_offload(copy);
cleanup_async_copy(copy);
return 0;
}
@@ -1807,6 +1807,13 @@ nfsd4_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
__be32 status;
struct nfsd4_copy *async_copy = NULL;
+ /*
+ * Currently, async COPY is not reliable. Force all COPY
+ * requests to be synchronous to avoid client application
+ * hangs waiting for COPY completion.
+ */
+ nfsd4_copy_set_sync(copy, true);
+
copy->cp_clp = cstate->clp;
if (nfsd4_ssc_is_inter(copy)) {
trace_nfsd_copy_inter(copy);
@@ -2003,11 +2010,16 @@ nfsd4_offload_status(struct svc_rqst *rqstp,
struct nfsd4_copy *copy;
struct nfs4_client *clp = cstate->clp;
+ os->completed = false;
spin_lock(&clp->async_lock);
copy = find_async_copy_locked(clp, &os->stateid);
- if (copy)
+ if (copy) {
os->count = copy->cp_res.wr_bytes_written;
- else
+ if (test_bit(NFSD4_COPY_F_COMPLETED, &copy->cp_flags)) {
+ os->completed = true;
+ os->status = copy->nfserr;
+ }
+ } else
status = nfserr_bad_stateid;
spin_unlock(&clp->async_lock);
@@ -2154,6 +2166,29 @@ nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
return status == nfserr_same ? nfs_ok : status;
}
+static __be32
+nfsd4_get_dir_delegation(struct svc_rqst *rqstp,
+ struct nfsd4_compound_state *cstate,
+ union nfsd4_op_u *u)
+{
+ struct nfsd4_get_dir_delegation *gdd = &u->get_dir_delegation;
+
+ /*
+ * RFC 8881, section 18.39.3 says:
+ *
+ * "The server may refuse to grant the delegation. In that case, the
+ * server will return NFS4ERR_DIRDELEG_UNAVAIL."
+ *
+ * This is sub-optimal, since it means that the server would need to
+ * abort compound processing just because the delegation wasn't
+ * available. RFC8881bis should change this to allow the server to
+ * return NFS4_OK with a non-fatal status of GDD4_UNAVAIL in this
+ * situation.
+ */
+ gdd->gddrnf_status = GDD4_UNAVAIL;
+ return nfs_ok;
+}
+
#ifdef CONFIG_NFSD_PNFS
static const struct nfsd4_layout_ops *
nfsd4_layout_verify(struct svc_export *exp, unsigned int layout_type)
@@ -2234,7 +2269,7 @@ nfsd4_layoutget(struct svc_rqst *rqstp,
const struct nfsd4_layout_ops *ops;
struct nfs4_layout_stateid *ls;
__be32 nfserr;
- int accmode = NFSD_MAY_READ_IF_EXEC;
+ int accmode = NFSD_MAY_READ_IF_EXEC | NFSD_MAY_OWNER_OVERRIDE;
switch (lgp->lg_seg.iomode) {
case IOMODE_READ:
@@ -2324,7 +2359,8 @@ nfsd4_layoutcommit(struct svc_rqst *rqstp,
struct nfs4_layout_stateid *ls;
__be32 nfserr;
- nfserr = fh_verify(rqstp, current_fh, 0, NFSD_MAY_WRITE);
+ nfserr = fh_verify(rqstp, current_fh, 0,
+ NFSD_MAY_WRITE | NFSD_MAY_OWNER_OVERRIDE);
if (nfserr)
goto out;
@@ -3082,6 +3118,18 @@ static u32 nfsd4_copy_notify_rsize(const struct svc_rqst *rqstp,
* sizeof(__be32);
}
+static u32 nfsd4_get_dir_delegation_rsize(const struct svc_rqst *rqstp,
+ const struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size +
+ 1 /* gddr_status */ +
+ op_encode_verifier_maxsz +
+ op_encode_stateid_maxsz +
+ 2 /* gddr_notification */ +
+ 2 /* gddr_child_attributes */ +
+ 2 /* gddr_dir_attributes */);
+}
+
#ifdef CONFIG_NFSD_PNFS
static u32 nfsd4_getdeviceinfo_rsize(const struct svc_rqst *rqstp,
const struct nfsd4_op *op)
@@ -3470,6 +3518,12 @@ static const struct nfsd4_operation nfsd4_ops[] = {
.op_get_currentstateid = nfsd4_get_freestateid,
.op_rsize_bop = nfsd4_only_status_rsize,
},
+ [OP_GET_DIR_DELEGATION] = {
+ .op_func = nfsd4_get_dir_delegation,
+ .op_flags = OP_MODIFIES_SOMETHING,
+ .op_name = "OP_GET_DIR_DELEGATION",
+ .op_rsize_bop = nfsd4_get_dir_delegation_rsize,
+ },
#ifdef CONFIG_NFSD_PNFS
[OP_GETDEVICEINFO] = {
.op_func = nfsd4_getdeviceinfo,
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-20 09:59:55 +0000