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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2024-10-05 22:01:12 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-11-07 23:38:07 +0100 |
| commit | f7470591f8db1a72ce9f7ab49cb13c2b21b92002 (patch) | |
| tree | 74216b10aff78c9bcd324f438b9b911f3a9d1a69 /mm/memory-failure.c | |
| parent | mm/zsmalloc: use memcpy_from/to_page whereever possible (diff) | |
| download | linux-f7470591f8db1a72ce9f7ab49cb13c2b21b92002.tar.xz linux-f7470591f8db1a72ce9f7ab49cb13c2b21b92002.zip | |
mm: convert page_to_pgoff() to page_pgoff()
Patch series "page->index removals in mm", v2.
As part of shrinking struct page, we need to stop using page->index. This
patchset gets rid of most of the remaining references to page->index in
mm, as well as increasing the number of functions which take a const
folio/page pointer. It shrinks the text segment of mm by a few hundred
bytes in my test config, probably mostly from removing calls to
compound_head() in page_to_pgoff().
This patch (of 7):
Change the function signature to pass in the folio as all three callers
have it. This removes a reference to page->index, which we're trying to
get rid of. And add kernel-doc.
Link: https://lkml.kernel.org/r/20241005200121.3231142-1-willy@infradead.org
Link: https://lkml.kernel.org/r/20241005200121.3231142-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memory-failure.c')
| -rw-r--r-- | mm/memory-failure.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 96ce31e5a203..58a3d80961a4 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -617,7 +617,7 @@ static void collect_procs_anon(struct folio *folio, struct page *page, if (av == NULL) /* Not actually mapped anymore */ return; - pgoff = page_to_pgoff(page); + pgoff = page_pgoff(folio, page); rcu_read_lock(); for_each_process(tsk) { struct vm_area_struct *vma; @@ -653,7 +653,7 @@ static void collect_procs_file(struct folio *folio, struct page *page, i_mmap_lock_read(mapping); rcu_read_lock(); - pgoff = page_to_pgoff(page); + pgoff = page_pgoff(folio, page); for_each_process(tsk) { struct task_struct *t = task_early_kill(tsk, force_early); unsigned long addr; |