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-rw-r--r--mm/compaction.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index 139f00c0308a..ca71fd3c3181 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -981,13 +981,13 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
}
if (PageHuge(page)) {
+ const unsigned int order = compound_order(page);
/*
* skip hugetlbfs if we are not compacting for pages
* bigger than its order. THPs and other compound pages
* are handled below.
*/
if (!cc->alloc_contig) {
- const unsigned int order = compound_order(page);
if (order <= MAX_PAGE_ORDER) {
low_pfn += (1UL << order) - 1;
@@ -1011,8 +1011,8 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
/* Do not report -EBUSY down the chain */
if (ret == -EBUSY)
ret = 0;
- low_pfn += compound_nr(page) - 1;
- nr_scanned += compound_nr(page) - 1;
+ low_pfn += (1UL << order) - 1;
+ nr_scanned += (1UL << order) - 1;
goto isolate_fail;
}