diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-02-02 07:33:08 +0300 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-03-21 20:01:35 +0300 |
| commit | 9595d76942b8714627d670a7e7ae543812c731ae (patch) | |
| tree | febd0a334505f4e11fcd427b96e740ab0548a3cc /mm/memory-failure.c | |
| parent | c8423186078312d344474bcb9e2b1ce0a78dbde4 (diff) | |
| download | linux-9595d76942b8714627d670a7e7ae543812c731ae.tar.xz | |
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 'mm/memory-failure.c')
| -rw-r--r-- | mm/memory-failure.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 258913d5e036..aa8236848949 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -487,12 +487,13 @@ static struct task_struct *task_early_kill(struct task_struct *tsk, static void collect_procs_anon(struct page *page, struct list_head *to_kill, int force_early) { + struct folio *folio = page_folio(page); struct vm_area_struct *vma; struct task_struct *tsk; struct anon_vma *av; pgoff_t pgoff; - av = page_lock_anon_vma_read(page); + av = folio_lock_anon_vma_read(folio); if (av == NULL) /* Not actually mapped anymore */ return; |