diff options
| author | ZhangPeng <zhangpeng362@huawei.com> | 2023-07-21 06:44:44 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-18 20:12:45 +0300 |
| commit | 6d2790d95d7cffaf0def36270032ce5228dd43a5 (patch) | |
| tree | 95a469581c57ba5be84fafdbe65298970aea60cc | |
| parent | 9962ed64bd2154863ab3b63b15a2b55e39dc7117 (diff) | |
| download | linux-6d2790d95d7cffaf0def36270032ce5228dd43a5.tar.xz | |
mm/page_io: introduce bio_first_folio_all()
Introduce bio_first_folio_all() to return a folio, which makes it easier
to use.
Link: https://lkml.kernel.org/r/20230721034451.16412-4-zhangpeng362@huawei.com
Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
Suggested-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | Documentation/block/biovecs.rst | 1 | ||||
| -rw-r--r-- | include/linux/bio.h | 5 |
2 files changed, 6 insertions, 0 deletions
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)); |