Source of workingset.c - linux-imx - PHYTEC BitBucket (Stash)

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    entry >>= MEM_CGROUP_ID_SHIFT;
​
    *memcgidp = memcgid;
    *pgdat = NODE_DATA(nid);
    *evictionp = entry << bucket_order;
    *workingsetp = workingset;
}
​
/**
 * workingset_eviction - note the eviction of a page from memory
 * @mapping: address space the page was backing
 * @page: the page being evicted
 *
 * Returns a shadow entry to be stored in @mapping->i_pages in place
 * Returns a shadow entry to be stored in @page->mapping->i_pages in place
 * of the evicted @page so that a later refault can be detected.
 */
void *workingset_eviction(struct address_space *mapping, struct page *page)
void *workingset_eviction(struct page *page)
{
    struct pglist_data *pgdat = page_pgdat(page);
    struct mem_cgroup *memcg = page_memcg(page);
    int memcgid = mem_cgroup_id(memcg);
    unsigned long eviction;
    struct lruvec *lruvec;
​
    /* Page is fully exclusive and pins page->mem_cgroup */
    VM_BUG_ON_PAGE(PageLRU(page), page);
    VM_BUG_ON_PAGE(page_count(page), page);