From: "Vishal Moola (Oracle)" <vishal.moola@gmail.com>
To: linux-fsdevel@vger.kernel.org
Cc: linux-cifs@vger.kernel.org, linux-nilfs@vger.kernel.org,
"Vishal Moola \(Oracle\)" <vishal.moola@gmail.com>,
linux-kernel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com,
linux-mm@kvack.org, ceph-devel@vger.kernel.org,
linux-ext4@vger.kernel.org, linux-afs@lists.infradead.org,
linux-btrfs@vger.kernel.org
Subject: [f2fs-dev] [PATCH 01/23] pagemap: Add filemap_grab_folio()
Date: Thu, 1 Sep 2022 15:01:16 -0700 [thread overview]
Message-ID: <20220901220138.182896-2-vishal.moola@gmail.com> (raw)
In-Reply-To: <20220901220138.182896-1-vishal.moola@gmail.com>
Add function filemap_grab_folio() to grab a folio from the page cache.
This function is meant to serve as a folio replacement for
grab_cache_page, and is used to facilitate the removal of
find_get_pages_range_tag().
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
---
include/linux/pagemap.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 0178b2040ea3..4d3092d6b2c0 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -547,6 +547,26 @@ static inline struct folio *filemap_lock_folio(struct address_space *mapping,
return __filemap_get_folio(mapping, index, FGP_LOCK, 0);
}
+/**
+ * filemap_grab_folio - grab a folio from the page cache
+ * @mapping: The address space to search
+ * @index: The page index
+ *
+ * Looks up the page cache entry at @mapping & @index. If no folio is found,
+ * a new folio is created. The folio is locked, marked as accessed, and
+ * returned.
+ *
+ * Return: A found or created folio. NULL if no folio is found and failed to
+ * create a folio.
+ */
+static inline struct folio *filemap_grab_folio(struct address_space *mapping,
+ pgoff_t index)
+{
+ return __filemap_get_folio(mapping, index,
+ FGP_LOCK | FGP_ACCESSED | FGP_CREAT,
+ mapping_gfp_mask(mapping));
+}
+
/**
* find_get_page - find and get a page reference
* @mapping: the address_space to search
--
2.36.1
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next prev parent reply other threads:[~2022-09-01 22:02 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-01 22:01 [f2fs-dev] [PATCH 00/23] Convert to filemap_get_folios_tag() Vishal Moola (Oracle)
2022-09-01 22:01 ` Vishal Moola (Oracle) [this message]
2022-09-01 22:01 ` [f2fs-dev] [PATCH 02/23] filemap: Added filemap_get_folios_tag() Vishal Moola (Oracle)
2022-09-01 22:01 ` [f2fs-dev] [PATCH 03/23] filemap: Convert __filemap_fdatawait_range() to use filemap_get_folios_tag() Vishal Moola (Oracle)
2022-09-01 22:01 ` [f2fs-dev] [PATCH 04/23] page-writeback: Convert write_cache_pages() " Vishal Moola (Oracle)
2022-10-18 21:01 ` Dave Chinner
2022-11-03 22:28 ` Vishal Moola
2022-11-04 0:32 ` Dave Chinner
2022-11-04 2:45 ` Darrick J. Wong
2022-11-04 3:36 ` Dave Chinner
2022-11-04 20:06 ` Matthew Wilcox
2022-11-04 15:27 ` Matthew Wilcox
2022-09-01 22:01 ` [f2fs-dev] [PATCH 05/23] afs: Convert afs_writepages_region() " Vishal Moola (Oracle)
2022-09-01 22:01 ` [f2fs-dev] [PATCH 06/23] btrfs: Convert btree_write_cache_pages() to use filemap_get_folio_tag() Vishal Moola (Oracle)
2022-09-02 12:28 ` David Sterba
2022-09-01 22:01 ` [f2fs-dev] [PATCH 07/23] btrfs: Convert extent_write_cache_pages() to use filemap_get_folios_tag() Vishal Moola (Oracle)
2022-09-02 12:29 ` David Sterba
2022-09-01 22:01 ` [f2fs-dev] [PATCH 08/23] ceph: Convert ceph_writepages_start() " Vishal Moola (Oracle)
2022-09-01 22:01 ` [f2fs-dev] [PATCH 09/23] cifs: Convert wdata_alloc_and_fillpages() " Vishal Moola (Oracle)
2022-09-01 22:01 ` [f2fs-dev] [PATCH 10/23] ext4: Convert mpage_prepare_extent_to_map() " Vishal Moola (Oracle)
2022-09-01 22:01 ` [f2fs-dev] [PATCH 11/23] f2fs: Convert f2fs_fsync_node_pages() " Vishal Moola (Oracle)
2022-09-01 22:01 ` [f2fs-dev] [PATCH 12/23] f2fs: Convert f2fs_flush_inline_data() " Vishal Moola (Oracle)
2022-09-01 22:01 ` [f2fs-dev] [PATCH 13/23] f2fs: Convert f2fs_sync_node_pages() " Vishal Moola (Oracle)
2022-09-01 22:01 ` [f2fs-dev] [PATCH 14/23] f2fs: Convert f2fs_write_cache_pages() " Vishal Moola (Oracle)
2022-09-02 19:57 ` kernel test robot
2022-09-02 21:39 ` kernel test robot
2022-09-01 22:01 ` [f2fs-dev] [PATCH 15/23] f2fs: Convert last_fsync_dnode() " Vishal Moola (Oracle)
2022-09-01 22:01 ` [f2fs-dev] [PATCH 16/23] f2fs: Convert f2fs_sync_meta_pages() " Vishal Moola (Oracle)
2022-09-01 22:01 ` [f2fs-dev] [PATCH 17/23] gfs2: Convert gfs2_write_cache_jdata() " Vishal Moola (Oracle)
2022-09-01 22:01 ` [f2fs-dev] [PATCH 18/23] nilfs2: Convert nilfs_lookup_dirty_data_buffers() " Vishal Moola (Oracle)
2022-09-03 17:38 ` Ryusuke Konishi
2022-09-01 22:01 ` [f2fs-dev] [PATCH 19/23] nilfs2: Convert nilfs_lookup_dirty_node_buffers() " Vishal Moola (Oracle)
2022-09-03 17:37 ` Ryusuke Konishi
2022-09-01 22:01 ` [f2fs-dev] [PATCH 20/23] nilfs2: Convert nilfs_btree_lookup_dirty_buffers() " Vishal Moola (Oracle)
2022-09-03 17:37 ` Ryusuke Konishi
2022-09-01 22:01 ` [f2fs-dev] [PATCH 21/23] nilfs2: Convert nilfs_copy_dirty_pages() " Vishal Moola (Oracle)
2022-09-03 17:37 ` Ryusuke Konishi
2022-09-01 22:01 ` [f2fs-dev] [PATCH 22/23] nilfs2: Convert nilfs_clear_dirty_pages() " Vishal Moola (Oracle)
2022-09-03 17:38 ` Ryusuke Konishi
2022-09-01 22:01 ` [f2fs-dev] [PATCH 23/23] filemap: Remove find_get_pages_range_tag() Vishal Moola (Oracle)
2022-10-14 13:59 ` [f2fs-dev] [PATCH 05/23] afs: Convert afs_writepages_region() to use filemap_get_folios_tag() David Howells
2022-10-18 21:45 ` [f2fs-dev] [PATCH 00/23] Convert to filemap_get_folios_tag() Dave Chinner
2022-11-03 21:59 ` Vishal Moola
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