From: Christian Borntraeger <borntraeger@de.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
x86@kernel.org, Christian Borntraeger <borntraeger@de.ibm.com>
Subject: [PATCH/RFC 1/3] mm: provide debug_pagealloc_enabled() without CONFIG_DEBUG_PAGEALLOC
Date: Tue, 26 Jan 2016 10:18:23 +0100 [thread overview]
Message-ID: <1453799905-10941-2-git-send-email-borntraeger@de.ibm.com> (raw)
In-Reply-To: <1453799905-10941-1-git-send-email-borntraeger@de.ibm.com>
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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next prev parent reply other threads:[~2016-01-26 9:18 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-26 9:18 [PATCH/RFC 0/3] Optimize CONFIG_DEBUG_PAGEALLOC Christian Borntraeger
2016-01-26 9:18 ` Christian Borntraeger [this message]
2016-01-26 23:23 ` [PATCH/RFC 1/3] mm: provide debug_pagealloc_enabled() without CONFIG_DEBUG_PAGEALLOC David Rientjes
2016-01-26 9:18 ` [PATCH/RFC 2/3] x86: query dynamic DEBUG_PAGEALLOC setting Christian Borntraeger
2016-01-26 9:18 ` [PATCH/RFC 3/3] s390: " Christian Borntraeger
2016-01-26 18:19 ` Heiko Carstens
2016-01-26 20:38 ` Thomas Gleixner
2016-01-26 23:29 ` David Rientjes
2016-01-27 0:19 ` Joonsoo Kim
2016-01-27 0:36 ` David Rientjes
2016-01-27 0:59 ` Joonsoo Kim
2016-01-27 7:59 ` Christian Borntraeger
2016-01-27 12:41 ` Vlastimil Babka
2016-01-27 12:47 ` Christian Borntraeger
2016-01-27 13:03 ` Vlastimil Babka
2016-01-27 13:09 ` Christian Borntraeger
2016-01-28 4:25 ` Joonsoo Kim
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