diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index a2b3c594379d..d8667c07c4eb 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -548,24 +548,32 @@ static struct btrfs_path *alloc_path_for_send(void)
 
 static int write_buf(struct file *filp, const void *buf, u32 len, loff_t *off)
 {
-	int ret;
+	int ret = 0;
 	u32 pos = 0;
+	unsigned nofs_flag;
 
+	/*
+	 * Pipe writes can allocate pages which can trigger reclaim and cause
+	 * a crash if reclaim triggers inode eviction and that needs to start a
+	 * transaction. So use a NOFS context.
+	 */
+	nofs_flag = memalloc_nofs_save();
 	while (pos < len) {
 		ret = kernel_write(filp, buf + pos, len - pos, off);
 		/* TODO handle that correctly */
 		/*if (ret == -ERESTARTSYS) {
 			continue;
 		}*/
+		if (ret == 0)
+			ret = -EIO;
 		if (ret < 0)
-			return ret;
-		if (ret == 0) {
-			return -EIO;
-		}
+			break;
 		pos += ret;
+		ret = 0;
 	}
+	memalloc_nofs_restore(nofs_flag);
 
-	return 0;
+	return ret;
 }
 
 static int tlv_put(struct send_ctx *sctx, u16 attr, const void *data, int len)