Re: [PATCH/RFC 1/3] mm: provide debug_pagealloc_enabled() without CONFIG_DEBUG_PAGEALLOC
From: David Rientjes <rientjes@google.com>
Date: 2016-01-26 23:23:30
Also in:
linux-arch, linux-s390, lkml
On Tue, 26 Jan 2016, Christian Borntraeger wrote:
quoted hunk ↗ jump to hunk
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 <redacted> --- 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
Since the patchset needs to be refreshed based on Heiko and Thomas's comments, please add some /* CONFIG_DEBUG_PAGEALLOC */ annotation to the #else and #endif lines so this block is easier to read. After that, feel free to add Acked-by: David Rientjes [off-list ref] -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>