1 files changed, 26 insertions, 11 deletions

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 90b4f9f7de66..a894bf809ff7 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1396,11 +1396,10 @@ openRetry:
  * current bigbuf.
  */
 static int
-cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
+discard_remaining_data(struct TCP_Server_Info *server)
 {
 	unsigned int rfclen = get_rfc1002_length(server->smallbuf);
 	int remaining = rfclen + 4 - server->total_read;
-	struct cifs_readdata *rdata = mid->callback_data;
 
 	while (remaining > 0) {
 		int length;
@@ -1414,10 +1413,20 @@ cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
 		remaining -= length;
 	}
 
-	dequeue_mid(mid, rdata->result);
 	return 0;
 }
 
+static int
+cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
+{
+	int length;
+	struct cifs_readdata *rdata = mid->callback_data;
+
+	length = discard_remaining_data(server);
+	dequeue_mid(mid, rdata->result);
+	return length;
+}
+
 int
 cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
 {
@@ -1446,6 +1455,12 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
 		return length;
 	server->total_read += length;
 
+	if (server->ops->is_status_pending &&
+	    server->ops->is_status_pending(buf, server, 0)) {
+		discard_remaining_data(server);
+		return -1;
+	}
+
 	/* Was the SMB read successful? */
 	rdata->result = server->ops->map_error(buf, false);
 	if (rdata->result != 0) {
@@ -1914,17 +1929,17 @@ cifs_writev_requeue(struct cifs_writedata *wdata)
 
 		wsize = server->ops->wp_retry_size(inode);
 		if (wsize < rest_len) {
-			nr_pages = wsize / PAGE_CACHE_SIZE;
+			nr_pages = wsize / PAGE_SIZE;
 			if (!nr_pages) {
 				rc = -ENOTSUPP;
 				break;
 			}
-			cur_len = nr_pages * PAGE_CACHE_SIZE;
-			tailsz = PAGE_CACHE_SIZE;
+			cur_len = nr_pages * PAGE_SIZE;
+			tailsz = PAGE_SIZE;
 		} else {
-			nr_pages = DIV_ROUND_UP(rest_len, PAGE_CACHE_SIZE);
+			nr_pages = DIV_ROUND_UP(rest_len, PAGE_SIZE);
 			cur_len = rest_len;
-			tailsz = rest_len - (nr_pages - 1) * PAGE_CACHE_SIZE;
+			tailsz = rest_len - (nr_pages - 1) * PAGE_SIZE;
 		}
 
 		wdata2 = cifs_writedata_alloc(nr_pages, cifs_writev_complete);
@@ -1942,7 +1957,7 @@ cifs_writev_requeue(struct cifs_writedata *wdata)
 		wdata2->sync_mode = wdata->sync_mode;
 		wdata2->nr_pages = nr_pages;
 		wdata2->offset = page_offset(wdata2->pages[0]);
-		wdata2->pagesz = PAGE_CACHE_SIZE;
+		wdata2->pagesz = PAGE_SIZE;
 		wdata2->tailsz = tailsz;
 		wdata2->bytes = cur_len;
 
@@ -1960,7 +1975,7 @@ cifs_writev_requeue(struct cifs_writedata *wdata)
 			if (rc != 0 && rc != -EAGAIN) {
 				SetPageError(wdata2->pages[j]);
 				end_page_writeback(wdata2->pages[j]);
-				page_cache_release(wdata2->pages[j]);
+				put_page(wdata2->pages[j]);
 			}
 		}
 
@@ -2003,7 +2018,7 @@ cifs_writev_complete(struct work_struct *work)
 		else if (wdata->result < 0)
 			SetPageError(page);
 		end_page_writeback(page);
-		page_cache_release(page);
+		put_page(page);
 	}
 	if (wdata->result != -EAGAIN)
 		mapping_set_error(inode->i_mapping, wdata->result);