Messages in this thread Patch in this message | | | From | Mathieu Desnoyers <> | Subject | [RFC PATCH 6/9] mm: export-GPL get_pageblock_migratetype | Date | Thu, 9 Apr 2020 15:35:40 -0400 |
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The macro include/linux/mmzone.h:get_pageblock_migratetype() uses the symbol get_pfnblock_flags_mask, which is not exported. That macro is used within the kmem and page_ref trace events to trace the migrate type of the target page.
Exporting this symbol to GPL modules allows GPL kernel tracers to be implemented as modules.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-mm@kvack.org --- mm/page_alloc.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 114c56c3685d..390febb028a0 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -501,6 +501,7 @@ unsigned long get_pfnblock_flags_mask(struct page *page, unsigned long pfn, { return __get_pfnblock_flags_mask(page, pfn, end_bitidx, mask); } +EXPORT_SYMBOL_GPL(get_pfnblock_flags_mask); static __always_inline int get_pfnblock_migratetype(struct page *page, unsigned long pfn) { -- 2.17.1
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