Re: [PATCH -v4 RESEND 6/9] mm, THP, swap: Support to add/delete THP to/from swap cache
From: Hillf Danton <hidden>
Date: 2016-10-28 08:15:24
Also in:
lkml
On Friday, October 28, 2016 1:56 PM Huang, Ying wrote:
quoted hunk ↗ jump to hunk
@@ -109,9 +118,16 @@ int __add_to_swap_cache(struct page *page, swp_entry_t entry) * So add_to_swap_cache() doesn't returns -EEXIST. */ VM_BUG_ON(error == -EEXIST); - set_page_private(page, 0UL); ClearPageSwapCache(page); - put_page(page); + set_page_private(cur_page, 0UL); + while (i--) { + cur_page--; + cur_entry.val--; + set_page_private(cur_page, 0UL); + radix_tree_delete(&address_space->page_tree, + swp_offset(cur_entry)); + }
Pull pages out of radix tree with tree lock held?
+ page_ref_sub(page, nr); } return error;
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