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authorDavid Howells <dhowells@redhat.com>2023-05-22 21:57:42 +0100
committerJens Axboe <axboe@kernel.dk>2023-05-24 08:42:44 -0600
commitfd363244e883323e1ac9412d96fd22b51e255b0c (patch)
treea4ab29760b6dac530b091b7d8bb0ba6d79cc6f2c /block/bio.c
parente51bab4e20586fb3afc30536b776a97ed8ffb681 (diff)
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block: Add BIO_PAGE_PINNED and associated infrastructure
Add BIO_PAGE_PINNED to indicate that the pages in a bio are pinned (FOLL_PIN) and that the pin will need removing. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: John Hubbard <jhubbard@nvidia.com> cc: Al Viro <viro@zeniv.linux.org.uk> cc: Jens Axboe <axboe@kernel.dk> cc: Jan Kara <jack@suse.cz> cc: Matthew Wilcox <willy@infradead.org> cc: Logan Gunthorpe <logang@deltatee.com> cc: linux-block@vger.kernel.org Reviewed-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20230522205744.2825689-5-dhowells@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bio.c')
-rw-r--r--block/bio.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/block/bio.c b/block/bio.c
index 8516adeaea26..17bd01ecde36 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1169,7 +1169,7 @@ void __bio_release_pages(struct bio *bio, bool mark_dirty)
bio_for_each_segment_all(bvec, bio, iter_all) {
if (mark_dirty && !PageCompound(bvec->bv_page))
set_page_dirty_lock(bvec->bv_page);
- put_page(bvec->bv_page);
+ bio_release_page(bio, bvec->bv_page);
}
}
EXPORT_SYMBOL_GPL(__bio_release_pages);
@@ -1489,8 +1489,8 @@ void bio_set_pages_dirty(struct bio *bio)
* the BIO and re-dirty the pages in process context.
*
* It is expected that bio_check_pages_dirty() will wholly own the BIO from
- * here on. It will run one put_page() against each page and will run one
- * bio_put() against the BIO.
+ * here on. It will unpin each page and will run one bio_put() against the
+ * BIO.
*/
static void bio_dirty_fn(struct work_struct *work);