Drop support for kernels < 4.4 from 'wrapper/page_alloc.h'

[lttng-modules.git] / src / wrapper / page_alloc.c

diff --git a/src/wrapper/page_alloc.c b/src/wrapper/page_alloc.c
index 81835cb2a04191fbd1aef3f45eae20cbc0a12cd6..a03838fad4f2b2d2f3ced26f80068305a0ba786f 100644 (file)
--- a/src/wrapper/page_alloc.c
+++ b/src/wrapper/page_alloc.c
@@ -9,14 +9,7 @@
  * Copyright (C) 2015 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  */
 
-#include <lttng/kernel-version.h>
-
-#if (defined(CONFIG_KALLSYMS) \
-       && (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,19,2)    \
-               || LTTNG_KERNEL_RANGE(3,14,36, 3,15,0)          \
-               || LTTNG_KERNEL_RANGE(3,18,10, 3,19,0)          \
-               || LTTNG_DEBIAN_KERNEL_RANGE(3,16,7,9,0,0, 3,17,0,0,0,0) \
-               || LTTNG_UBUNTU_KERNEL_RANGE(3,16,7,34, 3,17,0,0)))
+#ifdef CONFIG_KALLSYMS
 
 #include <linux/kallsyms.h>
 #include <linux/mm_types.h>
@@ -78,46 +71,3 @@ unsigned long __canary__get_pfnblock_flags_mask(struct page *page,
 #include <linux/pageblock-flags.h>
 
 #endif
-
-#if (defined(CONFIG_KALLSYMS) \
-       && LTTNG_UBUNTU_KERNEL_RANGE(3,13,11,50, 3,14,0,0))
-
-#include <linux/kallsyms.h>
-#include <linux/mm_types.h>
-#include <linux/module.h>
-#include <wrapper/kallsyms.h>
-#include <wrapper/page_alloc.h>
-
-static
-unsigned long (*get_pageblock_flags_mask_sym)(struct page *page,
-               unsigned long end_bitidx,
-               unsigned long mask);
-
-unsigned long wrapper_get_pageblock_flags_mask(struct page *page,
-               unsigned long end_bitidx,
-               unsigned long mask)
-{
-       WARN_ON_ONCE(!get_pageblock_flags_mask_sym);
-       if (get_pageblock_flags_mask_sym) {
-               return get_pageblock_flags_mask_sym(page, end_bitidx, mask);
-       } else {
-               return -ENOSYS;
-       }
-}
-EXPORT_SYMBOL_GPL(wrapper_get_pageblock_flags_mask);
-
-int wrapper_get_pageblock_flags_mask_init(void)
-{
-       get_pageblock_flags_mask_sym =
-               (void *) kallsyms_lookup_funcptr("get_pageblock_flags_mask");
-       if (!get_pageblock_flags_mask_sym)
-               return -1;
-       return 0;
-}
-EXPORT_SYMBOL_GPL(wrapper_get_pfnblock_flags_mask_init);
-
-#else
-
-#include <linux/pageblock-flags.h>
-
-#endif