The patch titled
Subject: mm, compaction: fix build errors with kcompactd
has been added to the -mm tree. Its filename is
mm-compaction-introduce-kcompactd-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-compaction-introduce-kcompactd-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-compaction-introduce-kcompactd-fix.patch
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------------------------------------------------------
From: Arnd Bergmann <arnd@xxxxxxxx>
Subject: mm, compaction: fix build errors with kcompactd
The newly added kcompactd code introduces multiple build errors:
include/linux/compaction.h:91:12: error: 'kcompactd_run' defined but not used [-Werror=unused-function]
mm/compaction.c:1953:2: error: implicit declaration of function 'hotcpu_notifier' [-Werror=implicit-function-declaration]
This marks the new empty wrapper functions as 'inline' to avoid unused-function warnings,
and includes linux/cpu.h to get the hotcpu_notifier declaration.
Fixes: 8364acdfa45a ("mm, compaction: introduce kcompactd")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/compaction.h | 6 +++---
mm/compaction.c | 1 +
2 files changed, 4 insertions(+), 3 deletions(-)
diff -puN include/linux/compaction.h~mm-compaction-introduce-kcompactd-fix include/linux/compaction.h
--- a/include/linux/compaction.h~mm-compaction-introduce-kcompactd-fix
+++ a/include/linux/compaction.h
@@ -88,15 +88,15 @@ static inline bool compaction_deferred(s
return true;
}
-static int kcompactd_run(int nid)
+static inline int kcompactd_run(int nid)
{
return 0;
}
-static void kcompactd_stop(int nid)
+static inline void kcompactd_stop(int nid)
{
}
-static void wakeup_kcompactd(pg_data_t *pgdat, int order, int classzone_idx)
+static inline void wakeup_kcompactd(pg_data_t *pgdat, int order, int classzone_idx)
{
}
diff -puN mm/compaction.c~mm-compaction-introduce-kcompactd-fix mm/compaction.c
--- a/mm/compaction.c~mm-compaction-introduce-kcompactd-fix
+++ a/mm/compaction.c
@@ -7,6 +7,7 @@
*
* Copyright IBM Corp. 2007-2010 Mel Gorman <mel@xxxxxxxxx>
*/
+#include <linux/cpu.h>
#include <linux/swap.h>
#include <linux/migrate.h>
#include <linux/compaction.h>
_
Patches currently in -mm which might be from arnd@xxxxxxxx are
mm-compaction-introduce-kcompactd-fix.patch
profile-hide-unused-functions-when-config_proc_fs.patch
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