From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: linux-mm@kvack.org
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
John Hubbard <jhubbard@nvidia.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH 06/17] mm: Remove page_cache_add_speculative() and page_cache_get_speculative()
Date: Sun, 2 Jan 2022 21:57:18 +0000 [thread overview]
Message-ID: <20220102215729.2943705-7-willy@infradead.org> (raw)
In-Reply-To: <20220102215729.2943705-1-willy@infradead.org>
These wrappers have no more callers, so delete them.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
include/linux/mm.h | 7 +++----
include/linux/pagemap.h | 11 -----------
2 files changed, 3 insertions(+), 15 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 00dcea53bb96..602de23482ef 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1298,10 +1298,9 @@ static inline void put_page(struct page *page)
* applications that don't have huge page reference counts, this won't be an
* issue.
*
- * Locking: the lockless algorithm described in page_cache_get_speculative()
- * and page_cache_gup_pin_speculative() provides safe operation for
- * get_user_pages and page_mkclean and other calls that race to set up page
- * table entries.
+ * Locking: the lockless algorithm described in folio_try_get_rcu()
+ * provides safe operation for get_user_pages(), page_mkclean() and
+ * other calls that race to set up page table entries.
*/
#define GUP_PIN_COUNTING_BIAS (1U << 10)
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 704cb1b4b15d..4a63176b6417 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -283,17 +283,6 @@ static inline struct inode *folio_inode(struct folio *folio)
return folio->mapping->host;
}
-static inline bool page_cache_add_speculative(struct page *page, int count)
-{
- VM_BUG_ON_PAGE(PageTail(page), page);
- return folio_ref_try_add_rcu((struct folio *)page, count);
-}
-
-static inline bool page_cache_get_speculative(struct page *page)
-{
- return page_cache_add_speculative(page, 1);
-}
-
/**
* folio_attach_private - Attach private data to a folio.
* @folio: Folio to attach data to.
--
2.33.0
next prev parent reply other threads:[~2022-01-02 21:58 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-02 21:57 [PATCH 00/17] Convert GUP to folios Matthew Wilcox (Oracle)
2022-01-02 21:57 ` [PATCH 01/17] mm: Add folio_put_refs() Matthew Wilcox (Oracle)
2022-01-04 8:00 ` Christoph Hellwig
2022-01-04 21:15 ` John Hubbard
2022-01-02 21:57 ` [PATCH 02/17] mm: Add folio_pincount_available() Matthew Wilcox (Oracle)
2022-01-04 8:01 ` Christoph Hellwig
2022-01-04 18:25 ` Matthew Wilcox
2022-01-04 21:40 ` John Hubbard
2022-01-05 5:04 ` Matthew Wilcox
2022-01-05 6:24 ` John Hubbard
2022-01-02 21:57 ` [PATCH 03/17] mm: Add folio_pincount_ptr() Matthew Wilcox (Oracle)
2022-01-04 8:02 ` Christoph Hellwig
2022-01-04 21:43 ` John Hubbard
2022-01-06 21:57 ` William Kucharski
2022-01-02 21:57 ` [PATCH 04/17] mm: Convert page_maybe_dma_pinned() to use a folio Matthew Wilcox (Oracle)
2022-01-04 8:03 ` Christoph Hellwig
2022-01-04 22:01 ` John Hubbard
2022-01-02 21:57 ` [PATCH 05/17] gup: Add try_get_folio() Matthew Wilcox (Oracle)
2022-01-04 8:18 ` Christoph Hellwig
2022-01-05 1:25 ` John Hubbard
2022-01-05 7:00 ` John Hubbard
2022-01-07 18:23 ` Jason Gunthorpe
2022-01-08 1:37 ` Matthew Wilcox
2022-01-08 2:36 ` John Hubbard
2022-01-10 15:01 ` Jason Gunthorpe
2022-01-02 21:57 ` Matthew Wilcox (Oracle) [this message]
2022-01-04 8:18 ` [PATCH 06/17] mm: Remove page_cache_add_speculative() and page_cache_get_speculative() Christoph Hellwig
2022-01-05 1:29 ` John Hubbard
2022-01-02 21:57 ` [PATCH 07/17] gup: Add gup_put_folio() Matthew Wilcox (Oracle)
2022-01-04 8:22 ` Christoph Hellwig
2022-01-05 6:52 ` John Hubbard
2022-01-06 22:05 ` William Kucharski
2022-01-02 21:57 ` [PATCH 08/17] gup: Add try_grab_folio() Matthew Wilcox (Oracle)
2022-01-04 8:24 ` Christoph Hellwig
2022-01-05 7:06 ` John Hubbard
2022-01-02 21:57 ` [PATCH 09/17] gup: Convert gup_pte_range() to use a folio Matthew Wilcox (Oracle)
2022-01-04 8:25 ` Christoph Hellwig
2022-01-05 7:36 ` John Hubbard
2022-01-05 7:52 ` Matthew Wilcox
2022-01-05 7:57 ` John Hubbard
2022-01-02 21:57 ` [PATCH 10/17] gup: Convert gup_hugepte() " Matthew Wilcox (Oracle)
2022-01-04 8:26 ` Christoph Hellwig
2022-01-05 7:46 ` John Hubbard
2022-01-02 21:57 ` [PATCH 11/17] gup: Convert gup_huge_pmd() " Matthew Wilcox (Oracle)
2022-01-04 8:26 ` Christoph Hellwig
2022-01-05 7:50 ` John Hubbard
2022-01-02 21:57 ` [PATCH 12/17] gup: Convert gup_huge_pud() " Matthew Wilcox (Oracle)
2022-01-05 7:58 ` John Hubbard
2022-01-02 21:57 ` [PATCH 13/17] gup: Convert gup_huge_pgd() " Matthew Wilcox (Oracle)
2022-01-05 7:58 ` John Hubbard
2022-01-02 21:57 ` [PATCH 14/17] gup: Convert for_each_compound_head() to gup_for_each_folio() Matthew Wilcox (Oracle)
2022-01-04 8:32 ` Christoph Hellwig
2022-01-05 8:17 ` John Hubbard
2022-01-09 4:39 ` Matthew Wilcox
2022-01-09 8:01 ` John Hubbard
2022-01-10 15:22 ` Jan Kara
2022-01-10 15:52 ` Matthew Wilcox
2022-01-10 20:36 ` Jan Kara
2022-01-10 21:10 ` Matthew Wilcox
2022-01-17 12:07 ` Jan Kara
2022-01-02 21:57 ` [PATCH 15/17] gup: Convert for_each_compound_range() to gup_for_each_folio_range() Matthew Wilcox (Oracle)
2022-01-04 8:35 ` Christoph Hellwig
2022-01-05 8:30 ` John Hubbard
2022-01-02 21:57 ` [PATCH 16/17] mm: Add isolate_lru_folio() Matthew Wilcox (Oracle)
2022-01-04 8:36 ` Christoph Hellwig
2022-01-05 8:44 ` John Hubbard
2022-01-06 0:34 ` Matthew Wilcox
2022-01-02 21:57 ` [PATCH 17/17] gup: Convert check_and_migrate_movable_pages() to use a folio Matthew Wilcox (Oracle)
2022-01-04 8:37 ` Christoph Hellwig
2022-01-05 9:00 ` John Hubbard
2022-01-06 22:12 ` [PATCH 00/17] Convert GUP to folios William Kucharski
2022-01-07 18:54 ` Jason Gunthorpe
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