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From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
	akpm@linux-foundation.org, hughd@google.com, hch@lst.de,
	hannes@cmpxchg.org, yang.shi@linux.alibaba.com,
	dchinner@redhat.com, linux-kernel@vger.kernel.org,
	Jan Kara <jack@suse.cz>,
	William Kucharski <william.kucharski@oracle.com>
Subject: [PATCH v4 14/16] mm: Remove pagevec_lookup_entries
Date: Thu, 12 Nov 2020 21:26:39 +0000
Message-ID: <20201112212641.27837-15-willy@infradead.org> (raw)
In-Reply-To: <20201112212641.27837-1-willy@infradead.org>

pagevec_lookup_entries() is now just a wrapper around find_get_entries()
so remove it and convert all its callers.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
---
 include/linux/pagevec.h |  3 ---
 mm/swap.c               | 36 ++----------------------------------
 mm/truncate.c           |  4 ++--
 3 files changed, 4 insertions(+), 39 deletions(-)

diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h
index ce77724a2ab7..a45bea4b4d08 100644
--- a/include/linux/pagevec.h
+++ b/include/linux/pagevec.h
@@ -25,9 +25,6 @@ struct pagevec {
 
 void __pagevec_release(struct pagevec *pvec);
 void __pagevec_lru_add(struct pagevec *pvec);
-unsigned pagevec_lookup_entries(struct pagevec *pvec,
-		struct address_space *mapping, pgoff_t start, pgoff_t end,
-		pgoff_t *indices);
 void pagevec_remove_exceptionals(struct pagevec *pvec);
 unsigned pagevec_lookup_range(struct pagevec *pvec,
 			      struct address_space *mapping,
diff --git a/mm/swap.c b/mm/swap.c
index 7cf585223566..14c3bac607a6 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -1073,44 +1073,12 @@ void __pagevec_lru_add(struct pagevec *pvec)
 	pagevec_lru_move_fn(pvec, __pagevec_lru_add_fn, NULL);
 }
 
-/**
- * pagevec_lookup_entries - gang pagecache lookup
- * @pvec:	Where the resulting entries are placed
- * @mapping:	The address_space to search
- * @start:	The starting entry index
- * @end:	The highest index to return (inclusive).
- * @nr_entries:	The maximum number of pages
- * @indices:	The cache indices corresponding to the entries in @pvec
- *
- * pagevec_lookup_entries() will search for and return a group of up
- * to @nr_pages pages and shadow entries in the mapping.  All
- * entries are placed in @pvec.  pagevec_lookup_entries() takes a
- * reference against actual pages in @pvec.
- *
- * The search returns a group of mapping-contiguous entries with
- * ascending indexes.  There may be holes in the indices due to
- * not-present entries.
- *
- * Only one subpage of a Transparent Huge Page is returned in one call:
- * allowing truncate_inode_pages_range() to evict the whole THP without
- * cycling through a pagevec of extra references.
- *
- * pagevec_lookup_entries() returns the number of entries which were
- * found.
- */
-unsigned pagevec_lookup_entries(struct pagevec *pvec,
-		struct address_space *mapping, pgoff_t start, pgoff_t end,
-		pgoff_t *indices)
-{
-	return find_get_entries(mapping, start, end, pvec, indices);
-}
-
 /**
  * pagevec_remove_exceptionals - pagevec exceptionals pruning
  * @pvec:	The pagevec to prune
  *
- * pagevec_lookup_entries() fills both pages and exceptional radix
- * tree entries into the pagevec.  This function prunes all
+ * find_get_entries() fills both pages and XArray value entries (aka
+ * exceptional entries) into the pagevec.  This function prunes all
  * exceptionals from @pvec without leaving holes, so that it can be
  * passed on to page-only pagevec operations.
  */
diff --git a/mm/truncate.c b/mm/truncate.c
index 50d160700b7d..68b7630e1fc4 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -376,7 +376,7 @@ void truncate_inode_pages_range(struct address_space *mapping,
 	index = start;
 	for ( ; ; ) {
 		cond_resched();
-		if (!pagevec_lookup_entries(&pvec, mapping, index, end - 1,
+		if (!find_get_entries(mapping, index, end - 1, &pvec,
 				indices)) {
 			/* If all gone from start onwards, we're done */
 			if (index == start)
@@ -632,7 +632,7 @@ int invalidate_inode_pages2_range(struct address_space *mapping,
 
 	pagevec_init(&pvec);
 	index = start;
-	while (pagevec_lookup_entries(&pvec, mapping, index, end, indices)) {
+	while (find_get_entries(mapping, index, end, &pvec, indices)) {
 		for (i = 0; i < pagevec_count(&pvec); i++) {
 			struct page *page = pvec.pages[i];
 
-- 
2.28.0


  parent reply index

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-12 21:26 [PATCH v4 00/16] Overhaul multi-page lookups for THP Matthew Wilcox (Oracle)
2020-11-12 21:26 ` [PATCH v4 01/16] mm: Make pagecache tagged lookups return only head pages Matthew Wilcox (Oracle)
2020-11-14  9:53   ` Christoph Hellwig
2020-11-12 21:26 ` [PATCH v4 02/16] mm/shmem: Use pagevec_lookup in shmem_unlock_mapping Matthew Wilcox (Oracle)
2020-11-14  9:53   ` Christoph Hellwig
2020-11-12 21:26 ` [PATCH v4 03/16] mm/swap: Optimise get_shadow_from_swap_cache Matthew Wilcox (Oracle)
2020-11-14  9:53   ` Christoph Hellwig
2020-11-12 21:26 ` [PATCH v4 04/16] mm: Add FGP_ENTRY Matthew Wilcox (Oracle)
2020-11-14 10:00   ` Christoph Hellwig
2020-11-12 21:26 ` [PATCH v4 05/16] mm/filemap: Rename find_get_entry to mapping_get_entry Matthew Wilcox (Oracle)
2020-11-14 10:01   ` Christoph Hellwig
2020-11-12 21:26 ` [PATCH v4 06/16] mm/filemap: Add helper for finding pages Matthew Wilcox (Oracle)
2020-11-14 10:03   ` Christoph Hellwig
2020-11-14 15:15     ` Matthew Wilcox
2020-11-12 21:26 ` [PATCH v4 07/16] mm/filemap: Add mapping_seek_hole_data Matthew Wilcox (Oracle)
2020-11-14 10:04   ` Christoph Hellwig
2020-11-12 21:26 ` [PATCH v4 08/16] iomap: Use mapping_seek_hole_data Matthew Wilcox (Oracle)
2020-11-14 10:06   ` Christoph Hellwig
2020-11-12 21:26 ` [PATCH v4 09/16] mm: Add and use find_lock_entries Matthew Wilcox (Oracle)
2020-11-14 10:07   ` Christoph Hellwig
2020-11-12 21:26 ` [PATCH v4 10/16] mm: Add an 'end' parameter to find_get_entries Matthew Wilcox (Oracle)
2020-11-14 10:08   ` Christoph Hellwig
2020-11-12 21:26 ` [PATCH v4 11/16] mm: Add an 'end' parameter to pagevec_lookup_entries Matthew Wilcox (Oracle)
2020-11-14 10:19   ` Christoph Hellwig
2020-11-12 21:26 ` [PATCH v4 12/16] mm: Remove nr_entries parameter from pagevec_lookup_entries Matthew Wilcox (Oracle)
2020-11-14 10:19   ` Christoph Hellwig
2020-11-12 21:26 ` [PATCH v4 13/16] mm: Pass pvec directly to find_get_entries Matthew Wilcox (Oracle)
2020-11-14 10:21   ` Christoph Hellwig
2020-11-14 15:22     ` Matthew Wilcox
2020-11-12 21:26 ` Matthew Wilcox (Oracle) [this message]
2020-11-14 10:22   ` [PATCH v4 14/16] mm: Remove pagevec_lookup_entries Christoph Hellwig
2020-11-12 21:26 ` [PATCH v4 15/16] mm/truncate,shmem: Handle truncates that split THPs Matthew Wilcox (Oracle)
2020-11-12 21:26 ` [PATCH v4 16/16] mm/filemap: Return only head pages from find_get_entries Matthew Wilcox (Oracle)
2020-11-14 10:23   ` Christoph Hellwig
2020-11-16 10:34 ` [PATCH v4 00/16] Overhaul multi-page lookups for THP Hugh Dickins
2020-11-16 15:14   ` Matthew Wilcox
2020-11-16 21:27     ` Hugh Dickins
2020-11-17 15:39   ` Matthew Wilcox
2020-11-17 16:26     ` Hugh Dickins
2020-11-17 19:15       ` Matthew Wilcox
2020-11-17 23:43         ` Matthew Wilcox
2020-11-25  2:32           ` Matthew Wilcox
2020-11-25  2:50             ` Hugh Dickins
2020-11-25  2:56               ` Hugh Dickins
2020-11-25 23:08             ` Andrew Morton
2020-11-26  0:11               ` Hugh Dickins
2020-11-26 12:15                 ` Matthew Wilcox
2020-11-26 19:24                   ` Hugh Dickins
2020-11-26 20:07                     ` Matthew Wilcox
2020-11-30 19:45                       ` Hugh Dickins
2020-12-01  4:52                         ` Hugh Dickins
     [not found]             ` <CGME20201203154604eucas1p200d001d25dd344a1dd1c7da34f35aad0@eucas1p2.samsung.com>
2020-12-03 15:46               ` Marek Szyprowski
     [not found]                 ` <CGME20201203172725eucas1p2fddec1d269c55095859d490942b78b93@eucas1p2.samsung.com>
2020-12-03 17:27                   ` Marek Szyprowski
2020-12-03 21:27                     ` Qian Cai
2020-12-03 22:19                       ` Hugh Dickins
2020-12-03 21:45                     ` Hugh Dickins
2021-02-23 22:58 ` Andrew Morton
2021-02-23 23:27   ` Matthew Wilcox

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