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| author | David Hildenbrand (Arm) <david@kernel.org> | 2026-04-27 13:43:14 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-05-28 21:04:56 -0700 |
| commit | 8803f883310a886e701fa282eaae3a6658b10091 (patch) | |
| tree | 5ad398c7b8951dd2c2584300a82f8a691fa7292c /arch/sh | |
| parent | 58996503b631adc6a268a42f4624a34513c16199 (diff) | |
| download | linux-next-8803f883310a886e701fa282eaae3a6658b10091.tar.gz linux-next-8803f883310a886e701fa282eaae3a6658b10091.zip | |
sh: use folio_mapped() instead of page_mapped() in sh4_flush_cache_page()
Patch series "mm: remove page_mapped()".
While preparing my slides for an LSF/MM talk, I realized that I did not
yet remove page_mapped().
So let's do that. In the BPF arena code it's unclear which memdesc we
would want to allocate in the future: certainly something with a refcount,
but likely none with a mapcount. So let's just rely on the page refcount
instead to decide whether we want to try zapping the page from user page
tables.
This patch (of 3):
We already have the folio in our hands, so let's just use folio_mapped().
Link: https://lore.kernel.org/20260427-page_mapped-v1-0-e89c3592c74c@kernel.org
Link: https://lore.kernel.org/20260427-page_mapped-v1-1-e89c3592c74c@kernel.org
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Harry Yoo <harry@kernel.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Martin KaFai Lau <martin.lau@linux.dev>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Song Liu <song@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Yonghong Song <yonghong.song@linux.dev>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/mm/cache-sh4.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c index 83fb34b39ca7..8bc9ce541c14 100644 --- a/arch/sh/mm/cache-sh4.c +++ b/arch/sh/mm/cache-sh4.c @@ -248,7 +248,7 @@ static void sh4_flush_cache_page(void *args) */ map_coherent = (current_cpu_data.dcache.n_aliases && test_bit(PG_dcache_clean, folio_flags(folio, 0)) && - page_mapped(page)); + folio_mapped(folio)); if (map_coherent) vaddr = kmap_coherent(page, address); else |