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| author | Mel Gorman <mgorman@suse.de> | 2012-12-05 09:32:56 +0000 |
|---|---|---|
| committer | Mel Gorman <mgorman@suse.de> | 2012-12-11 14:42:58 +0000 |
| commit | 220018d388b8ab1fca1c5f0c6474bab47ad2c9c0 (patch) | |
| tree | 46c6a2784fb5dc0e35110b7cc7455add77eaf056 /mm/migrate.c | |
| parent | b32967ff101a7508f70be8de59b278d4df92fa00 (diff) | |
| download | lwn-220018d388b8ab1fca1c5f0c6474bab47ad2c9c0.tar.gz lwn-220018d388b8ab1fca1c5f0c6474bab47ad2c9c0.zip | |
mm: numa: Add THP migration for the NUMA working set scanning fault case build fix
Commit "Add THP migration for the NUMA working set scanning fault case"
breaks the build because HPAGE_PMD_SHIFT and HPAGE_PMD_MASK defined to
explode without CONFIG_TRANSPARENT_HUGEPAGE:
mm/migrate.c: In function 'migrate_misplaced_transhuge_page_put':
mm/migrate.c:1549: error: call to '__build_bug_failed' declared with attribute error: BUILD_BUG failed
mm/migrate.c:1564: error: call to '__build_bug_failed' declared with attribute error: BUILD_BUG failed
mm/migrate.c:1566: error: call to '__build_bug_failed' declared with attribute error: BUILD_BUG failed
mm/migrate.c:1573: error: call to '__build_bug_failed' declared with attribute error: BUILD_BUG failed
mm/migrate.c:1606: error: call to '__build_bug_failed' declared with attribute error: BUILD_BUG failed
mm/migrate.c:1648: error: call to '__build_bug_failed' declared with attribute error: BUILD_BUG failed
CONFIG_NUMA_BALANCING allows compilation without enabling transparent
hugepages, so define the dummy function for such a configuration and only
define migrate_misplaced_transhuge_page_put() when transparent hugepages
are enabled.
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Diffstat (limited to 'mm/migrate.c')
| -rw-r--r-- | mm/migrate.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index c9400960fd52..9341a501d168 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1602,7 +1602,9 @@ int migrate_misplaced_page(struct page *page, int node) out: return isolated; } +#endif /* CONFIG_NUMA_BALANCING */ +#if defined(CONFIG_NUMA_BALANCING) && defined(CONFIG_TRANSPARENT_HUGEPAGE) int migrate_misplaced_transhuge_page(struct mm_struct *mm, struct vm_area_struct *vma, pmd_t *pmd, pmd_t entry, |