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Commit b7972092 authored by Long Li's avatar Long Li Committed by Steve French
Browse files

cifs: smbd: Retry on memory registration failure 



Memory registration failure doesn't mean this I/O has failed, it means the
transport is hitting I/O error or needs reconnect. This error is not from
the server.

Indicate this error to upper layer, and let upper layer decide how to
reconnect and proceed with this I/O.

Signed-off-by: default avatarLong Li <longli@microsoft.com>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 62fdf670

fs/cifs/smb2pdu.c

+2 −2
Original line number Diff line number Diff line
@@ -3223,7 +3223,7 @@ smb2_new_read_req(void **buf, unsigned int *total_len, 
				rdata->nr_pages, rdata->page_offset,

				rdata->tailsz, true, need_invalidate);

		if (!rdata->mr)

			return -ENOBUFS;

			return -EAGAIN;



		req->Channel = SMB2_CHANNEL_RDMA_V1_INVALIDATE;

		if (need_invalidate)
@@ -3628,7 +3628,7 @@ smb2_async_writev(struct cifs_writedata *wdata, 
				wdata->nr_pages, wdata->page_offset,

				wdata->tailsz, false, need_invalidate);

		if (!wdata->mr) {

			rc = -ENOBUFS;

			rc = -EAGAIN;

			goto async_writev_out;

		}

		req->Length = 0;