mm/debug_page_ref.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/mm_types.h>
   3 #include <linux/tracepoint.h>
   4
   5 #define CREATE_TRACE_POINTS
   6 #include <trace/events/page_ref.h>
   7
   8 void __page_ref_set(struct page *page, int v)
   9 {
  10         trace_page_ref_set(page, v);
  11 }
  12 EXPORT_SYMBOL(__page_ref_set);
  13 EXPORT_TRACEPOINT_SYMBOL(page_ref_set);
  14
  15 void __page_ref_mod(struct page *page, int v)
  16 {
  17         trace_page_ref_mod(page, v);
  18 }
  19 EXPORT_SYMBOL(__page_ref_mod);
  20 EXPORT_TRACEPOINT_SYMBOL(page_ref_mod);
  21
  22 void __page_ref_mod_and_test(struct page *page, int v, int ret)
  23 {
  24         trace_page_ref_mod_and_test(page, v, ret);
  25 }
  26 EXPORT_SYMBOL(__page_ref_mod_and_test);
  27 EXPORT_TRACEPOINT_SYMBOL(page_ref_mod_and_test);
  28
  29 void __page_ref_mod_and_return(struct page *page, int v, int ret)
  30 {
  31         trace_page_ref_mod_and_return(page, v, ret);
  32 }
  33 EXPORT_SYMBOL(__page_ref_mod_and_return);
  34 EXPORT_TRACEPOINT_SYMBOL(page_ref_mod_and_return);
  35
  36 void __page_ref_mod_unless(struct page *page, int v, int u)
  37 {
  38         trace_page_ref_mod_unless(page, v, u);
  39 }
  40 EXPORT_SYMBOL(__page_ref_mod_unless);
  41 EXPORT_TRACEPOINT_SYMBOL(page_ref_mod_unless);
  42
  43 void __page_ref_freeze(struct page *page, int v, int ret)
  44 {
  45         trace_page_ref_freeze(page, v, ret);
  46 }
  47 EXPORT_SYMBOL(__page_ref_freeze);
  48 EXPORT_TRACEPOINT_SYMBOL(page_ref_freeze);
  49
  50 void __page_ref_unfreeze(struct page *page, int v)
  51 {
  52         trace_page_ref_unfreeze(page, v);
  53 }
  54 EXPORT_SYMBOL(__page_ref_unfreeze);
  55 EXPORT_TRACEPOINT_SYMBOL(page_ref_unfreeze);