Remove duplicate handling of TTU_MIGRATE case for
anonymous and filesystem pages.
Signed-off-by: Nitin Gupta <ngupta@xxxxxxxxxx>
---
mm/rmap.c | 17 ++++-------------
1 files changed, 4 insertions(+), 13 deletions(-)
diff --git a/mm/rmap.c b/mm/rmap.c
index 07fc947..8ccfe4a 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -946,6 +946,10 @@ int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
dec_mm_counter(mm, MM_FILEPAGES);
set_pte_at(mm, address, pte,
swp_entry_to_pte(make_hwpoison_entry(page)));
+ } else if (PAGE_MIGRATION && (TTU_ACTION(flags) == TTU_MIGRATION)) {
+ swp_entry_t entry;
+ entry = make_migration_entry(page, pte_write(pteval));
+ set_pte_at(mm, address, pte, swp_entry_to_pte(entry));
} else if (PageAnon(page)) {
swp_entry_t entry = { .val = page_private(page) };
@@ -967,22 +971,9 @@ int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
}
dec_mm_counter(mm, MM_ANONPAGES);
inc_mm_counter(mm, MM_SWAPENTS);
- } else if (PAGE_MIGRATION) {
- /*
- * Store the pfn of the page in a special migration
- * pte. do_swap_page() will wait until the migration
- * pte is removed and then restart fault handling.
- */
- BUG_ON(TTU_ACTION(flags) != TTU_MIGRATION);
- entry = make_migration_entry(page, pte_write(pteval));
}
set_pte_at(mm, address, pte, swp_entry_to_pte(entry));
BUG_ON(pte_file(*pte));
- } else if (PAGE_MIGRATION && (TTU_ACTION(flags) == TTU_MIGRATION)) {
- /* Establish migration entry for a file page */
- swp_entry_t entry;
- entry = make_migration_entry(page, pte_write(pteval));
- set_pte_at(mm, address, pte, swp_entry_to_pte(entry));
} else
dec_mm_counter(mm, MM_FILEPAGES);
--
1.6.6.1
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