diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-08-22 21:23:35 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-24 16:20:31 -0700 |
| commit | 8f9ff2deb8b91ad1cba666c7adbe4ca79e2d3225 (patch) | |
| tree | 7ccd50ea802f90c07ca26d685a7104a5f0835da6 /include/linux/secretmem.h | |
| parent | 7db15418d390cf878d7c77ae08a4ad39f1534bc5 (diff) | |
secretmem: convert page_is_secretmem() to folio_is_secretmem()
The only caller already has a folio, so use it to save calling
compound_head() in PageLRU() and remove a use of page->mapping.
Link: https://lkml.kernel.org/r/20230822202335.179081-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/secretmem.h')
| -rw-r--r-- | include/linux/secretmem.h | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/include/linux/secretmem.h b/include/linux/secretmem.h index 988528b5da43..35f3a4a8ceb1 100644 --- a/include/linux/secretmem.h +++ b/include/linux/secretmem.h @@ -6,24 +6,23 @@ extern const struct address_space_operations secretmem_aops; -static inline bool page_is_secretmem(struct page *page) +static inline bool folio_is_secretmem(struct folio *folio) { struct address_space *mapping; /* - * Using page_mapping() is quite slow because of the actual call - * instruction and repeated compound_head(page) inside the - * page_mapping() function. + * Using folio_mapping() is quite slow because of the actual call + * instruction. * We know that secretmem pages are not compound and LRU so we can * save a couple of cycles here. */ - if (PageCompound(page) || !PageLRU(page)) + if (folio_test_large(folio) || !folio_test_lru(folio)) return false; mapping = (struct address_space *) - ((unsigned long)page->mapping & ~PAGE_MAPPING_FLAGS); + ((unsigned long)folio->mapping & ~PAGE_MAPPING_FLAGS); - if (!mapping || mapping != page->mapping) + if (!mapping || mapping != folio->mapping) return false; return mapping->a_ops == &secretmem_aops; @@ -39,7 +38,7 @@ static inline bool vma_is_secretmem(struct vm_area_struct *vma) return false; } -static inline bool page_is_secretmem(struct page *page) +static inline bool folio_is_secretmem(struct folio *folio) { return false; } |