[PATCH/RFC 1/3] mm: provide debug_pagealloc_enabled() without CONFIG_DEBUG_PAGEALLOC

From	Christian Borntraeger <borntraeger@de.ibm.com>
Newsgroups	linux.kernel
Subject	[PATCH/RFC 1/3] mm: provide debug_pagealloc_enabled() without CONFIG_DEBUG_PAGEALLOC
Date	2016-01-26 10:20 +0100
Message-ID	<qV7X4-1ZG-21@gated-at.bofh.it> (permalink)
References	<qV7X4-1ZG-13@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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We can provide debug_pagealloc_enabled() also if CONFIG_DEBUG_PAGEALLOC
is not set. It will return false in that case.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
---
 include/linux/mm.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 7783073..fbc5354 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2148,6 +2148,10 @@ kernel_map_pages(struct page *page, int numpages, int enable)
 extern bool kernel_page_present(struct page *page);
 #endif /* CONFIG_HIBERNATION */
 #else
+static inline bool debug_pagealloc_enabled(void)
+{
+	return false;
+}
 static inline void
 kernel_map_pages(struct page *page, int numpages, int enable) {}
 #ifdef CONFIG_HIBERNATION
-- 
2.3.0

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[PATCH/RFC 1/3] mm: provide debug_pagealloc_enabled() without CONFIG_DEBUG_PAGEALLOC Christian Borntraeger <borntraeger@de.ibm.com> - 2016-01-26 10:20 +0100
  Re: [PATCH/RFC 1/3] mm: provide debug_pagealloc_enabled() without  CONFIG_DEBUG_PAGEALLOC David Rientjes <rientjes@google.com> - 2016-01-27 00:30 +0100

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