[PATCH v7 18/20] block: add bio_add_folio_nofail
From: Johannes Thumshirn <hidden>
Date: 2023-05-31 11:54:09
Also in:
dm-devel, linux-block, linux-fsdevel, linux-mm
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
Just like for bio_add_pages() add a no-fail variant for bio_add_folio(). Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Johannes Thumshirn <redacted> --- block/bio.c | 8 ++++++++ include/linux/bio.h | 2 ++ 2 files changed, 10 insertions(+)
diff --git a/block/bio.c b/block/bio.c
index 043944fd46eb..07bc5139f9db 100644
--- a/block/bio.c
+++ b/block/bio.c@@ -1138,6 +1138,14 @@ int bio_add_page(struct bio *bio, struct page *page, } EXPORT_SYMBOL(bio_add_page); +void bio_add_folio_nofail(struct bio *bio, struct folio *folio, size_t len, + size_t off) +{ + WARN_ON_ONCE(len > UINT_MAX); + WARN_ON_ONCE(off > UINT_MAX); + __bio_add_page(bio, &folio->page, len, off); +} + /** * bio_add_folio - Attempt to add part of a folio to a bio. * @bio: BIO to add to.
diff --git a/include/linux/bio.h b/include/linux/bio.h
index ea2d937d3cba..f907d75af205 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h@@ -474,6 +474,8 @@ int bio_add_zone_append_page(struct bio *bio, struct page *page, unsigned int len, unsigned int offset); void __bio_add_page(struct bio *bio, struct page *page, unsigned int len, unsigned int off); +void bio_add_folio_nofail(struct bio *bio, struct folio *folio, size_t len, + size_t off); int bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter); void bio_iov_bvec_set(struct bio *bio, struct iov_iter *iter); void __bio_release_pages(struct bio *bio, bool mark_dirty);
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2.40.1