projects / lttng-modules.git / blame
| Commit | Line | Data |
|---|---|---|
| b7cdc182 | 1 | /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) |
| 9f36eaed | 2 | * |
| 389d7070 MD |
3 | * wrapper/page_alloc.h |
| 4 | * | |
| 5 | * wrapper around get_pfnblock_flags_mask. Using KALLSYMS to get its address | |
| 6 | * when available, else we need to have a kernel that exports this function to | |
| 7 | * GPL modules. | |
| 8 | * | |
| 9 | * Copyright (C) 2015 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
| 389d7070 MD |
10 | */ |
| 11 | ||
| 9f36eaed MJ |
12 | #ifndef _LTTNG_WRAPPER_PAGE_ALLOC_H |
| 13 | #define _LTTNG_WRAPPER_PAGE_ALLOC_H | |
| 14 | ||
| 5a90857e | 15 | #include <linux/mm_types.h> |
| 389d7070 MD |
16 | |
| 17 | /* | |
| 18 | * We need to redefine get_pfnblock_flags_mask to our wrapper, because | |
| 19 | * the get_pageblock_migratetype() macro uses it. | |
| 20 | */ | |
| 5a90857e | 21 | #ifdef CONFIG_KALLSYMS |
| 389d7070 MD |
22 | |
| 23 | #define get_pfnblock_flags_mask wrapper_get_pfnblock_flags_mask | |
| 24 | ||
| 389d7070 MD |
25 | int wrapper_get_pfnblock_flags_mask_init(void); |
| 26 | ||
| 0e14d6e7 | 27 | #else |
| 389d7070 | 28 | |
| 389d7070 MD |
29 | static inline |
| 30 | int wrapper_get_pfnblock_flags_mask_init(void) | |
| 31 | { | |
| 32 | return 0; | |
| 33 | } | |
| 34 | ||
| 0e14d6e7 MD |
35 | #endif |
| 36 | ||
| 389d7070 | 37 | #endif /* _LTTNG_WRAPPER_PAGE_ALLOC_H */ |