diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-09-02 20:46:42 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-10-03 14:02:53 -0700 |
| commit | a160e5377b55bc5c1925a7456b656aabfc07261f (patch) | |
| tree | 63c68b1ff88cabb8114a1ace50e360652e7145d5 | |
| parent | b4e6f66e45b43aed0903731b6c0700573f88282a (diff) | |
mm: convert do_swap_page() to use folio_free_swap()
Also convert should_try_to_free_swap() to use a folio. This removes a few
calls to compound_head().
Link: https://lkml.kernel.org/r/20220902194653.1739778-47-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | mm/memory.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/mm/memory.c b/mm/memory.c index 2f1397b7c77d..b8e4dae18ac1 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3641,14 +3641,14 @@ static vm_fault_t remove_device_exclusive_entry(struct vm_fault *vmf) return 0; } -static inline bool should_try_to_free_swap(struct page *page, +static inline bool should_try_to_free_swap(struct folio *folio, struct vm_area_struct *vma, unsigned int fault_flags) { - if (!PageSwapCache(page)) + if (!folio_test_swapcache(folio)) return false; - if (mem_cgroup_swap_full(page) || (vma->vm_flags & VM_LOCKED) || - PageMlocked(page)) + if (mem_cgroup_swap_full(&folio->page) || (vma->vm_flags & VM_LOCKED) || + folio_test_mlocked(folio)) return true; /* * If we want to map a page that's in the swapcache writable, we @@ -3656,8 +3656,8 @@ static inline bool should_try_to_free_swap(struct page *page, * user. Try freeing the swapcache to get rid of the swapcache * reference only in case it's likely that we'll be the exlusive user. */ - return (fault_flags & FAULT_FLAG_WRITE) && !PageKsm(page) && - page_count(page) == 2; + return (fault_flags & FAULT_FLAG_WRITE) && !folio_test_ksm(folio) && + folio_ref_count(folio) == 2; } static vm_fault_t pte_marker_clear(struct vm_fault *vmf) @@ -3949,8 +3949,8 @@ vm_fault_t do_swap_page(struct vm_fault *vmf) * yet. */ swap_free(entry); - if (should_try_to_free_swap(page, vma, vmf->flags)) - try_to_free_swap(page); + if (should_try_to_free_swap(folio, vma, vmf->flags)) + folio_free_swap(folio); inc_mm_counter_fast(vma->vm_mm, MM_ANONPAGES); dec_mm_counter_fast(vma->vm_mm, MM_SWAPENTS); |