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authorCharan Teja Kalla <quic_charante@quicinc.com>2022-04-14 19:13:49 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-04-15 14:49:55 -0700
commit31ca72fa7540bb654b55c56adaf99305847376e0 (patch)
treeed046944fb0d382f8d24d09a81e595e4430fb986 /mm
parente914d8f00391520ecc4495dd0ca0124538ab7119 (diff)
downloadlinux-31ca72fa7540bb654b55c56adaf99305847376e0.tar.bz2
mm: compaction: fix compiler warning when CONFIG_COMPACTION=n
The below warning is reported when CONFIG_COMPACTION=n: mm/compaction.c:56:27: warning: 'HPAGE_FRAG_CHECK_INTERVAL_MSEC' defined but not used [-Wunused-const-variable=] 56 | static const unsigned int HPAGE_FRAG_CHECK_INTERVAL_MSEC = 500; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix it by moving 'HPAGE_FRAG_CHECK_INTERVAL_MSEC' under CONFIG_COMPACTION defconfig. Also since this is just a 'static const int' type, use #define for it. Link: https://lkml.kernel.org/r/1647608518-20924-1-git-send-email-quic_charante@quicinc.com Signed-off-by: Charan Teja Kalla <quic_charante@quicinc.com> Reported-by: kernel test robot <lkp@intel.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Nitin Gupta <nigupta@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/compaction.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index c3e37aa9ff9e..fe915db6149b 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -26,6 +26,11 @@
#include "internal.h"
#ifdef CONFIG_COMPACTION
+/*
+ * Fragmentation score check interval for proactive compaction purposes.
+ */
+#define HPAGE_FRAG_CHECK_INTERVAL_MSEC (500)
+
static inline void count_compact_event(enum vm_event_item item)
{
count_vm_event(item);
@@ -51,11 +56,6 @@ static inline void count_compact_events(enum vm_event_item item, long delta)
#define pageblock_end_pfn(pfn) block_end_pfn(pfn, pageblock_order)
/*
- * Fragmentation score check interval for proactive compaction purposes.
- */
-static const unsigned int HPAGE_FRAG_CHECK_INTERVAL_MSEC = 500;
-
-/*
* Page order with-respect-to which proactive compaction
* calculates external fragmentation, which is used as
* the "fragmentation score" of a node/zone.