Commit 31ca72fa authored by Charan Teja Kalla's avatar Charan Teja Kalla Committed by Linus Torvalds

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.comSigned-off-by: default avatarCharan Teja Kalla <quic_charante@quicinc.com>
Reported-by: default avatarkernel test robot <lkp@intel.com>
Acked-by: default avatarVlastimil Babka <vbabka@suse.cz>
Cc: Nitin Gupta <nigupta@nvidia.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent e914d8f0
...@@ -26,6 +26,11 @@ ...@@ -26,6 +26,11 @@
#include "internal.h" #include "internal.h"
#ifdef CONFIG_COMPACTION #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) static inline void count_compact_event(enum vm_event_item item)
{ {
count_vm_event(item); count_vm_event(item);
...@@ -50,11 +55,6 @@ static inline void count_compact_events(enum vm_event_item item, long delta) ...@@ -50,11 +55,6 @@ static inline void count_compact_events(enum vm_event_item item, long delta)
#define pageblock_start_pfn(pfn) block_start_pfn(pfn, pageblock_order) #define pageblock_start_pfn(pfn) block_start_pfn(pfn, pageblock_order)
#define pageblock_end_pfn(pfn) block_end_pfn(pfn, pageblock_order) #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 * Page order with-respect-to which proactive compaction
* calculates external fragmentation, which is used as * calculates external fragmentation, which is used as
......
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