vlib: mmap process stacks

[vpp.git] / src / vlib / node.h

diff --git a/src/vlib/node.h b/src/vlib/node.h
index b9961f5..1bdb3bb 100644 (file)
--- a/src/vlib/node.h
+++ b/src/vlib/node.h
@@ -552,6 +552,7 @@ typedef struct
 
 typedef struct
 {
+  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
   /* Node runtime for this process. */
   vlib_node_runtime_t node_runtime;
 
@@ -613,32 +614,10 @@ typedef struct
   vlib_cli_output_function_t *output_function;
   uword output_function_arg;
 
-#ifdef CLIB_UNIX
-  /* Pad to a multiple of the page size so we can mprotect process stacks */
-#define PAGE_SIZE_MULTIPLE 0x1000
-#define ALIGN_ON_MULTIPLE_PAGE_BOUNDARY_FOR_MPROTECT  __attribute__ ((aligned (PAGE_SIZE_MULTIPLE)))
-#else
-#define ALIGN_ON_MULTIPLE_PAGE_BOUNDARY_FOR_MPROTECT
-#endif
-
-  /* Process stack.  Starts here and extends 2^log2_n_stack_bytes
-     bytes. */
-
+  /* Process stack */
 #define VLIB_PROCESS_STACK_MAGIC (0xdead7ead)
-  u32 stack[0] ALIGN_ON_MULTIPLE_PAGE_BOUNDARY_FOR_MPROTECT;
-} vlib_process_t __attribute__ ((aligned (CLIB_CACHE_LINE_BYTES)));
-
-#ifdef CLIB_UNIX
-  /* Ensure that the stack is aligned on the multiple of the page size */
-typedef char
-  assert_process_stack_must_be_aligned_exactly_to_page_size_multiple[(sizeof
-                                                                     (vlib_process_t)
-                                                                     -
-                                                                     PAGE_SIZE_MULTIPLE)
-                                                                    ==
-                                                                    0 ? 0 :
-                                                                    -1];
-#endif
+  u32 *stack;
+} vlib_process_t;
 
 typedef struct
 {