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From: Peng Zhang <zhangpeng362@huawei.com>
To: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
	<willy@infradead.org>
Cc: <hch@infradead.org>, <sidhartha.kumar@oracle.com>,
	<akpm@linux-foundation.org>, <wangkefeng.wang@huawei.com>,
	<sunnanyong@huawei.com>, ZhangPeng <zhangpeng362@huawei.com>
Subject: [PATCH v3 03/10] mm/page_io: introduce bio_first_folio_all()
Date: Thu, 20 Jul 2023 21:01:40 +0800	[thread overview]
Message-ID: <20230720130147.4071649-4-zhangpeng362@huawei.com> (raw)
In-Reply-To: <20230720130147.4071649-1-zhangpeng362@huawei.com>

From: ZhangPeng <zhangpeng362@huawei.com>

Introduce bio_first_folio_all() to return a folio, which makes it easier
to use.

Suggested-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
---
 Documentation/block/biovecs.rst | 1 +
 include/linux/bio.h             | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/Documentation/block/biovecs.rst b/Documentation/block/biovecs.rst
index ddb867e0185b..b9dc0c9dbee4 100644
--- a/Documentation/block/biovecs.rst
+++ b/Documentation/block/biovecs.rst
@@ -134,6 +134,7 @@ Usage of helpers:
 	bio_for_each_bvec_all()
 	bio_first_bvec_all()
 	bio_first_page_all()
+	bio_first_folio_all()
 	bio_last_bvec_all()
 
 * The following helpers iterate over single-page segment. The passed 'struct
diff --git a/include/linux/bio.h b/include/linux/bio.h
index c4f5b5228105..027ff9ab5d12 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -253,6 +253,11 @@ static inline struct page *bio_first_page_all(struct bio *bio)
 	return bio_first_bvec_all(bio)->bv_page;
 }
 
+static inline struct folio *bio_first_folio_all(struct bio *bio)
+{
+	return page_folio(bio_first_page_all(bio));
+}
+
 static inline struct bio_vec *bio_last_bvec_all(struct bio *bio)
 {
 	WARN_ON_ONCE(bio_flagged(bio, BIO_CLONED));
-- 
2.25.1



  parent reply	other threads:[~2023-07-20 13:02 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-20 13:01 [PATCH v3 00/10] Convert several functions in page_io.c to use a folio Peng Zhang
2023-07-20 13:01 ` [PATCH v3 01/10] mm/page_io: remove unneeded ClearPageUptodate() Peng Zhang
2023-07-20 13:01 ` [PATCH v3 02/10] mm/page_io: remove unneeded SetPageError() Peng Zhang
2023-07-20 13:01 ` Peng Zhang [this message]
2023-07-20 13:01 ` [PATCH v3 04/10] mm/page_io: use a folio in __end_swap_bio_write() Peng Zhang
2023-07-20 13:01 ` [PATCH v3 05/10] mm/page_io: use a folio in __end_swap_bio_read() Peng Zhang
2023-07-20 13:01 ` [PATCH v3 06/10] mm/page_io: use a folio in sio_read_complete() Peng Zhang
2023-07-20 13:01 ` [PATCH v3 07/10] mm/page_io: use a folio in swap_writepage_bdev_sync() Peng Zhang
2023-07-20 13:01 ` [PATCH v3 08/10] mm/page_io: use a folio in swap_writepage_bdev_async() Peng Zhang
2023-07-20 13:01 ` [PATCH v3 09/10] mm/page_io: convert count_swpout_vm_event() to take in a folio Peng Zhang
2023-07-21  1:31   ` kernel test robot
2023-07-21  2:30     ` zhangpeng (AS)
2023-07-21  2:02   ` kernel test robot
2023-07-20 13:01 ` [PATCH v3 10/10] mm/page_io: convert bio_associate_blkg_from_page() " Peng Zhang

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