diff options
| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2024-06-18 17:12:39 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-07-03 19:30:20 -0700 |
| commit | 78fefd04c123493bbf28434768fa577b2153c79b (patch) | |
| tree | 3c53f2c78b94554cbda1394c3ec0f90729491e79 /include | |
| parent | 08af2c12e3ef379de94ba5653f2f9ae9a588ecd9 (diff) | |
mm: memory: convert clear_huge_page() to folio_zero_user()
Patch series "mm: improve clear and copy user folio", v2.
Some folio conversions. An improvement is to move address alignment into
the caller as it is only needed if we don't know which address will be
accessed when clearing/copying user folios.
This patch (of 4):
Replace clear_huge_page() with folio_zero_user(), and take a folio
instead of a page. Directly get number of pages by folio_nr_pages()
to remove pages_per_huge_page argument, furthermore, move the address
alignment from folio_zero_user() to the callers since the alignment
is only needed when we don't know which address will be accessed.
Link: https://lkml.kernel.org/r/20240618091242.2140164-1-wangkefeng.wang@huawei.com
Link: https://lkml.kernel.org/r/20240618091242.2140164-2-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Muchun Song <muchun.song@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mm.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 101945baffc7..e2140ea6ae98 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -4067,9 +4067,7 @@ enum mf_action_page_type { }; #if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLBFS) -extern void clear_huge_page(struct page *page, - unsigned long addr_hint, - unsigned int pages_per_huge_page); +void folio_zero_user(struct folio *folio, unsigned long addr_hint); int copy_user_large_folio(struct folio *dst, struct folio *src, unsigned long addr_hint, struct vm_area_struct *vma); |