3 files changed, 0 insertions, 9 deletions
diff --git a/src/core/ngx_buf.c b/src/core/ngx_buf.c
index 31d990315..2f2c43721 100644
--- a/src/core/ngx_buf.c
+++ b/src/core/ngx_buf.c
@@ -201,12 +201,6 @@ ngx_chain_update_chains(ngx_chain_t **free, ngx_chain_t **busy,
             break;
         }
 
-#if (NGX_HAVE_WRITE_ZEROCOPY)
-        if ((*busy)->buf->zerocopy_busy) {
-            break;
-        }
-#endif
-
         if ((*busy)->buf->tag != tag) {
             *busy = (*busy)->next;
             continue;
diff --git a/src/core/ngx_buf.h b/src/core/ngx_buf.h
index ce26c630e..8649bdb9e 100644
--- a/src/core/ngx_buf.h
+++ b/src/core/ngx_buf.h
@@ -51,8 +51,6 @@ struct ngx_buf_s {
     unsigned         last_shadow:1;
     unsigned         temp_file:1;
 
-    unsigned         zerocopy_busy:1;
-
     /* STUB */ int   num;
 };
 
diff --git a/src/core/ngx_palloc.h b/src/core/ngx_palloc.h
index 434f9728b..c31db932c 100644
--- a/src/core/ngx_palloc.h
+++ b/src/core/ngx_palloc.h
@@ -14,7 +14,6 @@
 
 /*
  * NGX_MAX_ALLOC_FROM_POOL should be (ngx_pagesize - 1), i.e. 4095 on x86.
- * On FreeBSD 5.x it allows to use the zero copy sending.
  * On Windows NT it decreases a number of locked pages in a kernel.
  */
 #define NGX_MAX_ALLOC_FROM_POOL  (ngx_pagesize - 1)