From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-block@vger.kernel.org,
Jens Axboe <axboe@kernel.dk>,
Christoph Hellwig <hch@infradead.org>
Subject: [PATCH 04/21] iomap: Convert to_iomap_page to take a folio
Date: Mon, 1 Nov 2021 20:39:12 +0000 [thread overview]
Message-ID: <20211101203929.954622-5-willy@infradead.org> (raw)
In-Reply-To: <20211101203929.954622-1-willy@infradead.org>
The big comment about only using a head page can go away now that
it takes a folio argument.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
---
fs/iomap/buffered-io.c | 32 +++++++++++++++-----------------
1 file changed, 15 insertions(+), 17 deletions(-)
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 9cc5798423d1..24a2aa69c467 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -22,8 +22,8 @@
#include "../internal.h"
/*
- * Structure allocated for each page or THP when block size < page size
- * to track sub-page uptodate status and I/O completions.
+ * Structure allocated for each folio when block size < folio size
+ * to track sub-folio uptodate status and I/O completions.
*/
struct iomap_page {
atomic_t read_bytes_pending;
@@ -32,17 +32,10 @@ struct iomap_page {
unsigned long uptodate[];
};
-static inline struct iomap_page *to_iomap_page(struct page *page)
+static inline struct iomap_page *to_iomap_page(struct folio *folio)
{
- /*
- * per-block data is stored in the head page. Callers should
- * not be dealing with tail pages, and if they are, they can
- * call thp_head() first.
- */
- VM_BUG_ON_PGFLAGS(PageTail(page), page);
-
- if (page_has_private(page))
- return (struct iomap_page *)page_private(page);
+ if (folio_test_private(folio))
+ return folio_get_private(folio);
return NULL;
}
@@ -51,7 +44,8 @@ static struct bio_set iomap_ioend_bioset;
static struct iomap_page *
iomap_page_create(struct inode *inode, struct page *page)
{
- struct iomap_page *iop = to_iomap_page(page);
+ struct folio *folio = page_folio(page);
+ struct iomap_page *iop = to_iomap_page(folio);
unsigned int nr_blocks = i_blocks_per_page(inode, page);
if (iop || nr_blocks <= 1)
@@ -144,7 +138,8 @@ iomap_adjust_read_range(struct inode *inode, struct iomap_page *iop,
static void
iomap_iop_set_range_uptodate(struct page *page, unsigned off, unsigned len)
{
- struct iomap_page *iop = to_iomap_page(page);
+ struct folio *folio = page_folio(page);
+ struct iomap_page *iop = to_iomap_page(folio);
struct inode *inode = page->mapping->host;
unsigned first = off >> inode->i_blkbits;
unsigned last = (off + len - 1) >> inode->i_blkbits;
@@ -173,7 +168,8 @@ static void
iomap_read_page_end_io(struct bio_vec *bvec, int error)
{
struct page *page = bvec->bv_page;
- struct iomap_page *iop = to_iomap_page(page);
+ struct folio *folio = page_folio(page);
+ struct iomap_page *iop = to_iomap_page(folio);
if (unlikely(error)) {
ClearPageUptodate(page);
@@ -427,7 +423,8 @@ int
iomap_is_partially_uptodate(struct page *page, unsigned long from,
unsigned long count)
{
- struct iomap_page *iop = to_iomap_page(page);
+ struct folio *folio = page_folio(page);
+ struct iomap_page *iop = to_iomap_page(folio);
struct inode *inode = page->mapping->host;
unsigned len, first, last;
unsigned i;
@@ -1003,7 +1000,8 @@ static void
iomap_finish_page_writeback(struct inode *inode, struct page *page,
int error, unsigned int len)
{
- struct iomap_page *iop = to_iomap_page(page);
+ struct folio *folio = page_folio(page);
+ struct iomap_page *iop = to_iomap_page(folio);
if (error) {
SetPageError(page);
--
2.33.0
next prev parent reply other threads:[~2021-11-01 20:49 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-01 20:39 [PATCH 00/21] iomap/xfs folio patches Matthew Wilcox (Oracle)
2021-11-01 20:39 ` [PATCH 01/21] fs: Remove FS_THP_SUPPORT Matthew Wilcox (Oracle)
2021-11-02 7:12 ` Christoph Hellwig
2021-11-01 20:39 ` [PATCH 02/21] block: Add bio_add_folio() Matthew Wilcox (Oracle)
2021-11-01 20:51 ` Jens Axboe
2021-11-02 14:15 ` Matthew Wilcox
2021-11-02 7:12 ` Christoph Hellwig
2021-11-03 1:25 ` wangjianjian (C)
2021-11-03 2:22 ` Matthew Wilcox
2021-11-01 20:39 ` [PATCH 03/21] block: Add bio_for_each_folio_all() Matthew Wilcox (Oracle)
2021-11-01 20:51 ` Jens Axboe
2021-11-02 7:13 ` Christoph Hellwig
2021-11-02 20:24 ` Matthew Wilcox
2021-11-02 22:24 ` Darrick J. Wong
2021-11-02 22:33 ` Jens Axboe
2021-11-02 22:37 ` Darrick J. Wong
2021-11-01 20:39 ` Matthew Wilcox (Oracle) [this message]
2021-11-02 7:13 ` [PATCH 04/21] iomap: Convert to_iomap_page to take a folio Christoph Hellwig
2021-11-01 20:39 ` [PATCH 05/21] iomap: Convert iomap_page_create " Matthew Wilcox (Oracle)
2021-11-02 7:14 ` Christoph Hellwig
2021-11-01 20:39 ` [PATCH 06/21] iomap: Convert iomap_page_release " Matthew Wilcox (Oracle)
2021-11-01 20:39 ` [PATCH 07/21] iomap: Convert iomap_releasepage to use " Matthew Wilcox (Oracle)
2021-11-02 7:14 ` Christoph Hellwig
2021-11-02 22:39 ` Darrick J. Wong
2021-11-01 20:39 ` [PATCH 08/21] iomap: Add iomap_invalidate_folio Matthew Wilcox (Oracle)
2021-11-02 7:15 ` Christoph Hellwig
2021-11-02 22:36 ` Darrick J. Wong
2021-11-01 20:39 ` [PATCH 09/21] iomap: Pass the iomap_page into iomap_set_range_uptodate Matthew Wilcox (Oracle)
2021-11-02 7:16 ` Christoph Hellwig
2021-11-01 20:39 ` [PATCH 10/21] iomap: Convert bio completions to use folios Matthew Wilcox (Oracle)
2021-11-02 7:17 ` Christoph Hellwig
2021-11-01 20:39 ` [PATCH 11/21] iomap: Use folio offsets instead of page offsets Matthew Wilcox (Oracle)
2021-11-02 7:18 ` Christoph Hellwig
2021-11-01 20:39 ` [PATCH 12/21] iomap: Convert iomap_read_inline_data to take a folio Matthew Wilcox (Oracle)
2021-11-02 7:18 ` Christoph Hellwig
2021-11-01 20:39 ` [PATCH 13/21] iomap: Convert readahead and readpage to use " Matthew Wilcox (Oracle)
2021-11-02 7:20 ` Christoph Hellwig
2021-11-02 12:28 ` Matthew Wilcox
2021-11-01 20:39 ` [PATCH 14/21] iomap: Convert iomap_page_mkwrite " Matthew Wilcox (Oracle)
2021-11-02 7:21 ` Christoph Hellwig
2021-11-01 20:39 ` [PATCH 15/21] iomap: Convert iomap_write_begin and iomap_write_end to folios Matthew Wilcox (Oracle)
2021-11-02 0:25 ` kernel test robot
2021-11-02 7:22 ` Christoph Hellwig
2021-11-02 23:22 ` Darrick J. Wong
2021-11-03 3:15 ` Matthew Wilcox
2021-11-03 12:47 ` Matthew Wilcox
2021-11-01 20:39 ` [PATCH 16/21] iomap: Convert iomap_write_end_inline to take a folio Matthew Wilcox (Oracle)
2021-11-02 7:22 ` Christoph Hellwig
2021-11-01 20:39 ` [PATCH 17/21] iomap,xfs: Convert ->discard_page to ->discard_folio Matthew Wilcox (Oracle)
2021-11-02 7:23 ` Christoph Hellwig
2021-11-03 15:43 ` Darrick J. Wong
2021-11-01 20:39 ` [PATCH 18/21] iomap: Convert iomap_add_to_ioend to take a folio Matthew Wilcox (Oracle)
2021-11-02 7:26 ` Christoph Hellwig
2021-11-02 20:28 ` Matthew Wilcox
2021-11-03 15:54 ` Christoph Hellwig
2021-11-04 3:33 ` Matthew Wilcox
2021-11-04 8:38 ` Christoph Hellwig
2021-11-04 8:40 ` Christoph Hellwig
2021-11-03 16:00 ` Darrick J. Wong
2021-11-04 3:42 ` Matthew Wilcox
2021-11-01 20:39 ` [PATCH 19/21] iomap: Convert iomap_migrate_page to use folios Matthew Wilcox (Oracle)
2021-11-02 7:27 ` Christoph Hellwig
2021-11-03 16:02 ` Darrick J. Wong
2021-11-06 3:44 ` Matthew Wilcox
2021-11-01 20:39 ` [PATCH 20/21] iomap: Support multi-page folios in invalidatepage Matthew Wilcox (Oracle)
2021-11-02 7:27 ` Christoph Hellwig
2021-11-03 16:03 ` Darrick J. Wong
2021-11-01 20:39 ` [PATCH 21/21] xfs: Support multi-page folios Matthew Wilcox (Oracle)
2021-11-02 7:27 ` Christoph Hellwig
2021-11-03 16:07 ` Darrick J. Wong
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