diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-05-13 06:23:02 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-05-13 17:20:15 +0300 |
| commit | e2e3fdc7d4afdb8e7ba981eba7827993f2d390a8 (patch) | |
| tree | f747a326065eb01d0e328a79751b06f464dd5292 /mm/memcontrol.c | |
| parent | d33e4e1412c8b618f5f2f251ab9ddcfdf9f4adf3 (diff) | |
| download | linux-e2e3fdc7d4afdb8e7ba981eba7827993f2d390a8.tar.xz | |
swap: turn get_swap_page() into folio_alloc_swap()
This removes an assumption that a large folio is HPAGE_PMD_NR pages
in size.
Link: https://lkml.kernel.org/r/20220504182857.4013401-8-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 6e74ca98c862..e1b5823ac060 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -7162,17 +7162,17 @@ void mem_cgroup_swapout(struct folio *folio, swp_entry_t entry) } /** - * __mem_cgroup_try_charge_swap - try charging swap space for a page - * @page: page being added to swap + * __mem_cgroup_try_charge_swap - try charging swap space for a folio + * @folio: folio being added to swap * @entry: swap entry to charge * - * Try to charge @page's memcg for the swap space at @entry. + * Try to charge @folio's memcg for the swap space at @entry. * * Returns 0 on success, -ENOMEM on failure. */ -int __mem_cgroup_try_charge_swap(struct page *page, swp_entry_t entry) +int __mem_cgroup_try_charge_swap(struct folio *folio, swp_entry_t entry) { - unsigned int nr_pages = thp_nr_pages(page); + unsigned int nr_pages = folio_nr_pages(folio); struct page_counter *counter; struct mem_cgroup *memcg; unsigned short oldid; @@ -7180,9 +7180,9 @@ int __mem_cgroup_try_charge_swap(struct page *page, swp_entry_t entry) if (!cgroup_subsys_on_dfl(memory_cgrp_subsys)) return 0; - memcg = page_memcg(page); + memcg = folio_memcg(folio); - VM_WARN_ON_ONCE_PAGE(!memcg, page); + VM_WARN_ON_ONCE_FOLIO(!memcg, folio); if (!memcg) return 0; @@ -7205,7 +7205,7 @@ int __mem_cgroup_try_charge_swap(struct page *page, swp_entry_t entry) if (nr_pages > 1) mem_cgroup_id_get_many(memcg, nr_pages - 1); oldid = swap_cgroup_record(entry, mem_cgroup_id(memcg), nr_pages); - VM_BUG_ON_PAGE(oldid, page); + VM_BUG_ON_FOLIO(oldid, folio); mod_memcg_state(memcg, MEMCG_SWAP, nr_pages); return 0; |