The patch titled
From: Hillf Danton <dhillf@xxxxxxxxx>
has been added to the -mm tree. Its filename is
rmap-recompute-pgoff-for-unmapping-huge-page.patch
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------------------------------------------------------
From: Hillf Danton <dhillf@xxxxxxxxx>
Subject: rmap: recompute pgoff for unmapping huge page
We have to recompute pgoff if the given page is huge, since result based
on HPAGE_SIZE is not approapriate for scanning the vma interval tree, as
shown by commit 36e4f20af833 ("hugetlb: do not use vma_hugecache_offset()
for vma_prio_tree_foreach").
Signed-off-by: Hillf Danton <dhillf@xxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxx>
Cc: Michel Lespinasse <walken@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/rmap.c | 3 +++
1 file changed, 3 insertions(+)
diff -puN mm/rmap.c~rmap-recompute-pgoff-for-unmapping-huge-page mm/rmap.c
--- a/mm/rmap.c~rmap-recompute-pgoff-for-unmapping-huge-page
+++ a/mm/rmap.c
@@ -1513,6 +1513,9 @@ static int try_to_unmap_file(struct page
unsigned long max_nl_size = 0;
unsigned int mapcount;
+ if (PageHuge(page))
+ pgoff = page->index << compound_order(page);
+
mutex_lock(&mapping->i_mmap_mutex);
vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) {
unsigned long address = vma_address(page, vma);
_
Patches currently in -mm which might be from dhillf@xxxxxxxxx are
mm-mempolicyc-fix-wrong-sp_node-insertion.patch
mm-mempolicyc-fix-sp_node_init-argument-ordering.patch
rmap-recompute-pgoff-for-unmapping-huge-page.patch
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