NFS Client Bugfixes for Linux 6.18-rc

Bugfixes:
  * Fix for FlexFiles mirror->dss allocation
  * Apply delay_retrans to async operations
  * Check if suid/sgid is cleared after a write when needed
  * Fix setting the state renewal timer for early mounts after a reboot
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Merge tag 'nfs-for-6.18-2' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client fixes from Anna Schumaker:

 - Fix for FlexFiles mirror->dss allocation

 - Apply delay_retrans to async operations

 - Check if suid/sgid is cleared after a write when needed

 - Fix setting the state renewal timer for early mounts after a reboot

* tag 'nfs-for-6.18-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  NFS4: Fix state renewals missing after boot
  NFS: check if suid/sgid was cleared after a write as needed
  NFS4: Apply delay_retrans to async operations
  NFSv4/flexfiles: fix to allocate mirror->dss before use

fs/nfs/flexfilelayout/flexfilelayout.c

@@ -270,19 +270,31 @@ ff_layout_remove_mirror(struct nfs4_ff_layout_mirror *mirror)
 	mirror->layout = NULL;
 }
 
-static struct nfs4_ff_layout_mirror *ff_layout_alloc_mirror(gfp_t gfp_flags)
+static struct nfs4_ff_layout_mirror *ff_layout_alloc_mirror(u32 dss_count,
+							    gfp_t gfp_flags)
 {
 	struct nfs4_ff_layout_mirror *mirror;
-	u32 dss_id;
 
 	mirror = kzalloc(sizeof(*mirror), gfp_flags);
-	if (mirror != NULL) {
-		spin_lock_init(&mirror->lock);
-		refcount_set(&mirror->ref, 1);
-		INIT_LIST_HEAD(&mirror->mirrors);
-		for (dss_id = 0; dss_id < mirror->dss_count; dss_id++)
-			nfs_localio_file_init(&mirror->dss[dss_id].nfl);
+	if (mirror == NULL)
+		return NULL;
+
+	spin_lock_init(&mirror->lock);
+	refcount_set(&mirror->ref, 1);
+	INIT_LIST_HEAD(&mirror->mirrors);
+
+	mirror->dss_count = dss_count;
+	mirror->dss =
+		kcalloc(dss_count, sizeof(struct nfs4_ff_layout_ds_stripe),
+			gfp_flags);
+	if (mirror->dss == NULL) {
+		kfree(mirror);
+		return NULL;
 	}
+
+	for (u32 dss_id = 0; dss_id < mirror->dss_count; dss_id++)
+		nfs_localio_file_init(&mirror->dss[dss_id].nfl);
+
 	return mirror;
 }
 
@@ -507,17 +519,12 @@ ff_layout_alloc_lseg(struct pnfs_layout_hdr *lh,
 		if (dss_count > 1 && stripe_unit == 0)
 			goto out_err_free;
 
-		fls->mirror_array[i] = ff_layout_alloc_mirror(gfp_flags);
+		fls->mirror_array[i] = ff_layout_alloc_mirror(dss_count, gfp_flags);
 		if (fls->mirror_array[i] == NULL) {
 			rc = -ENOMEM;
 			goto out_err_free;
 		}
 
-		fls->mirror_array[i]->dss_count = dss_count;
-		fls->mirror_array[i]->dss =
-		    kcalloc(dss_count, sizeof(struct nfs4_ff_layout_ds_stripe),
-			    gfp_flags);
-
 		for (dss_id = 0; dss_id < dss_count; dss_id++) {
 			dss_info = &fls->mirror_array[i]->dss[dss_id];
 			dss_info->mirror = fls->mirror_array[i];

fs/nfs/nfs4client.c

@@ -222,6 +222,7 @@ struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init)
 	clp->cl_state = 1 << NFS4CLNT_LEASE_EXPIRED;
 	clp->cl_mvops = nfs_v4_minor_ops[cl_init->minorversion];
 	clp->cl_mig_gen = 1;
+	clp->cl_last_renewal = jiffies;
 #if IS_ENABLED(CONFIG_NFS_V4_1)
 	init_waitqueue_head(&clp->cl_lock_waitq);
 #endif

fs/nfs/nfs4proc.c

@@ -3636,6 +3636,7 @@ struct nfs4_closedata {
 	} lr;
 	struct nfs_fattr fattr;
 	unsigned long timestamp;
+	unsigned short retrans;
 };
 
 static void nfs4_free_closedata(void *data)
@@ -3664,6 +3665,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
 		.state = state,
 		.inode = calldata->inode,
 		.stateid = &calldata->arg.stateid,
+		.retrans = calldata->retrans,
 	};
 
 	if (!nfs4_sequence_done(task, &calldata->res.seq_res))
@@ -3711,6 +3713,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
 		default:
 			task->tk_status = nfs4_async_handle_exception(task,
 					server, task->tk_status, &exception);
+			calldata->retrans = exception.retrans;
 			if (exception.retry)
 				goto out_restart;
 	}
@@ -5593,9 +5596,11 @@ static int nfs4_read_done_cb(struct rpc_task *task, struct nfs_pgio_header *hdr)
 			.inode = hdr->inode,
 			.state = hdr->args.context->state,
 			.stateid = &hdr->args.stateid,
+			.retrans = hdr->retrans,
 		};
 		task->tk_status = nfs4_async_handle_exception(task,
 				server, task->tk_status, &exception);
+		hdr->retrans = exception.retrans;
 		if (exception.retry) {
 			rpc_restart_call_prepare(task);
 			return -EAGAIN;
@@ -5709,10 +5714,12 @@ static int nfs4_write_done_cb(struct rpc_task *task,
 			.inode = hdr->inode,
 			.state = hdr->args.context->state,
 			.stateid = &hdr->args.stateid,
+			.retrans = hdr->retrans,
 		};
 		task->tk_status = nfs4_async_handle_exception(task,
 				NFS_SERVER(inode), task->tk_status,
 				&exception);
+		hdr->retrans = exception.retrans;
 		if (exception.retry) {
 			rpc_restart_call_prepare(task);
 			return -EAGAIN;
@@ -6726,6 +6733,7 @@ struct nfs4_delegreturndata {
 	struct nfs_fh fh;
 	nfs4_stateid stateid;
 	unsigned long timestamp;
+	unsigned short retrans;
 	struct {
 		struct nfs4_layoutreturn_args arg;
 		struct nfs4_layoutreturn_res res;
@@ -6746,6 +6754,7 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata)
 		.inode = data->inode,
 		.stateid = &data->stateid,
 		.task_is_privileged = data->args.seq_args.sa_privileged,
+		.retrans = data->retrans,
 	};
 
 	if (!nfs4_sequence_done(task, &data->res.seq_res))
@@ -6817,6 +6826,7 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata)
 		task->tk_status = nfs4_async_handle_exception(task,
 				data->res.server, task->tk_status,
 				&exception);
+		data->retrans = exception.retrans;
 		if (exception.retry)
 			goto out_restart;
 	}
@@ -7093,6 +7103,7 @@ struct nfs4_unlockdata {
 	struct file_lock fl;
 	struct nfs_server *server;
 	unsigned long timestamp;
+	unsigned short retrans;
 };
 
 static struct nfs4_unlockdata *nfs4_alloc_unlockdata(struct file_lock *fl,
@@ -7147,6 +7158,7 @@ static void nfs4_locku_done(struct rpc_task *task, void *data)
 	struct nfs4_exception exception = {
 		.inode = calldata->lsp->ls_state->inode,
 		.stateid = &calldata->arg.stateid,
+		.retrans = calldata->retrans,
 	};
 
 	if (!nfs4_sequence_done(task, &calldata->res.seq_res))
@@ -7180,6 +7192,7 @@ static void nfs4_locku_done(struct rpc_task *task, void *data)
 			task->tk_status = nfs4_async_handle_exception(task,
 					calldata->server, task->tk_status,
 					&exception);
+			calldata->retrans = exception.retrans;
 			if (exception.retry)
 				rpc_restart_call_prepare(task);
 	}

fs/nfs/write.c

@@ -1535,7 +1535,8 @@ static int nfs_writeback_done(struct rpc_task *task,
 	/* Deal with the suid/sgid bit corner case */
 	if (nfs_should_remove_suid(inode)) {
 		spin_lock(&inode->i_lock);
-		nfs_set_cache_invalid(inode, NFS_INO_INVALID_MODE);
+		nfs_set_cache_invalid(inode, NFS_INO_INVALID_MODE
+				| NFS_INO_REVAL_FORCED);
 		spin_unlock(&inode->i_lock);
 	}
 	return 0;

include/linux/nfs_xdr.h

@@ -1659,6 +1659,7 @@ struct nfs_pgio_header {
 	void			*netfs;
 #endif
 
+	unsigned short		retrans;
 	int			pnfs_error;
 	int			error;		/* merge with pnfs_error */
 	unsigned int		good_bytes;	/* boundary of good data */