diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-02-01 23:33:08 -0500 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-03-21 13:01:35 -0400 |
| commit | 9595d76942b8714627d670a7e7ae543812c731ae (patch) | |
| tree | febd0a334505f4e11fcd427b96e740ab0548a3cc /include | |
| parent | c8423186078312d344474bcb9e2b1ce0a78dbde4 (diff) | |
mm/rmap: Turn page_lock_anon_vma_read() into folio_lock_anon_vma_read()
Add back page_lock_anon_vma_read() as a wrapper. This saves a few calls
to compound_head(). If any callers were passing a tail page before,
this would have failed to lock the anon VMA as page->mapping is not
valid for tail pages.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/rmap.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/rmap.h b/include/linux/rmap.h index 21af80d5b711..be020d38b0a5 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -267,6 +267,7 @@ void remove_migration_ptes(struct folio *src, struct folio *dst, bool locked); * Called by memory-failure.c to kill processes. */ struct anon_vma *page_lock_anon_vma_read(struct page *page); +struct anon_vma *folio_lock_anon_vma_read(struct folio *folio); void page_unlock_anon_vma_read(struct anon_vma *anon_vma); int page_mapped_in_vma(struct page *page, struct vm_area_struct *vma); |