From: David Howells <dhowells@redhat.com>
To: Jens Axboe <axboe@kernel.dk>, Al Viro <viro@zeniv.linux.org.uk>,
Christoph Hellwig <hch@infradead.org>
Cc: David Howells <dhowells@redhat.com>,
Matthew Wilcox <willy@infradead.org>, Jan Kara <jack@suse.cz>,
Jeff Layton <jlayton@kernel.org>,
David Hildenbrand <david@redhat.com>,
Jason Gunthorpe <jgg@nvidia.com>,
Logan Gunthorpe <logang@deltatee.com>,
Hillf Danton <hdanton@sina.com>,
linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
John Hubbard <jhubbard@nvidia.com>
Subject: [PATCH v13 07/12] iomap: Don't get an reference on ZERO_PAGE for direct I/O block zeroing
Date: Thu, 9 Feb 2023 10:29:49 +0000 [thread overview]
Message-ID: <20230209102954.528942-8-dhowells@redhat.com> (raw)
In-Reply-To: <20230209102954.528942-1-dhowells@redhat.com>
ZERO_PAGE can't go away, no need to hold an extra reference.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
cc: Al Viro <viro@zeniv.linux.org.uk>
cc: David Hildenbrand <david@redhat.com>
cc: linux-fsdevel@vger.kernel.org
---
fs/iomap/direct-io.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c
index 9804714b1751..47db4ead1e74 100644
--- a/fs/iomap/direct-io.c
+++ b/fs/iomap/direct-io.c
@@ -202,7 +202,7 @@ static void iomap_dio_zero(const struct iomap_iter *iter, struct iomap_dio *dio,
bio->bi_private = dio;
bio->bi_end_io = iomap_dio_bio_end_io;
- get_page(page);
+ bio_set_flag(bio, BIO_NO_PAGE_REF);
__bio_add_page(bio, page, len, 0);
iomap_dio_submit_bio(iter, dio, bio, pos);
}
next prev parent reply other threads:[~2023-02-09 10:32 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-09 10:29 [PATCH v13 00/12] iov_iter: Improve page extraction (pin or just list) David Howells
2023-02-09 10:29 ` [PATCH v13 01/12] splice: Fix O_DIRECT file read splice to avoid reversion of ITER_PIPE David Howells
2023-02-09 14:53 ` Matthew Wilcox
2023-02-09 15:06 ` David Howells
2023-02-09 16:15 ` [PATCH v14 " David Howells
2023-02-13 8:22 ` Christoph Hellwig
2023-02-15 13:17 ` David Howells
2023-02-15 14:24 ` Christoph Hellwig
2023-02-15 15:56 ` David Howells
2023-02-15 13:42 ` [PATCH] splice: Clean up direct_splice_read() a bit David Howells
2023-02-15 13:47 ` David Howells
2023-02-09 10:29 ` [PATCH v13 02/12] mm: Pass info, not iter, into filemap_get_pages() and unstatic it David Howells
2023-02-13 8:22 ` Christoph Hellwig
2023-02-09 10:29 ` [PATCH v13 03/12] splice: Do splice read from a buffered file without using ITER_PIPE David Howells
2023-02-13 8:28 ` Christoph Hellwig
2023-02-13 10:11 ` David Howells
2023-02-13 10:18 ` Christoph Hellwig
2023-02-13 11:15 ` David Howells
2023-02-13 14:44 ` Christoph Hellwig
2023-02-13 18:06 ` Guenter Roeck
2023-02-13 22:43 ` David Howells
2023-02-13 22:51 ` Guenter Roeck
2023-02-13 23:12 ` David Howells
2023-02-13 23:25 ` Guenter Roeck
2023-02-09 10:29 ` [PATCH v13 04/12] iov_iter: Kill ITER_PIPE David Howells
2023-02-13 8:28 ` Christoph Hellwig
2023-02-09 10:29 ` [PATCH v13 05/12] iov_iter: Define flags to qualify page extraction David Howells
2023-02-09 10:29 ` [PATCH v13 06/12] iov_iter: Add a function to extract a page list from an iterator David Howells
2023-02-09 10:29 ` David Howells [this message]
2023-02-09 10:29 ` [PATCH v13 08/12] block: Fix bio_flagged() so that gcc can better optimise it David Howells
2023-02-09 10:29 ` [PATCH v13 09/12] block: Replace BIO_NO_PAGE_REF with BIO_PAGE_REFFED with inverted logic David Howells
2023-02-09 10:29 ` [PATCH v13 10/12] block: Add BIO_PAGE_PINNED and associated infrastructure David Howells
2023-02-09 10:29 ` [PATCH v13 11/12] block: Convert bio_iov_iter_get_pages to use iov_iter_extract_pages David Howells
2023-02-09 10:29 ` [PATCH v13 12/12] block: convert bio_map_user_iov " David Howells
2023-02-10 22:31 ` [PATCH v13 00/12] iov_iter: Improve page extraction (pin or just list) Jens Axboe
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