From: Keith Busch <kbusch@fb.com>
To: <linux-fsdevel@vger.kernel.org>, <linux-block@vger.kernel.org>,
<linux-nvme@lists.infradead.org>
Cc: <axboe@kernel.dk>, Kernel Team <Kernel-team@fb.com>, <hch@lst.de>,
<bvanassche@acm.org>, <damien.lemoal@opensource.wdc.com>,
<ebiggers@kernel.org>, <pankydev8@gmail.com>,
Keith Busch <kbusch@kernel.org>
Subject: [PATCHv5 09/11] block: introduce bdev_iter_is_aligned helper
Date: Tue, 31 May 2022 12:11:35 -0700 [thread overview]
Message-ID: <20220531191137.2291467-10-kbusch@fb.com> (raw)
In-Reply-To: <20220531191137.2291467-1-kbusch@fb.com>
From: Keith Busch <kbusch@kernel.org>
Provide a convenient function for this repeatable coding pattern.
Signed-off-by: Keith Busch <kbusch@kernel.org>
---
include/linux/blkdev.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 834b981ef01b..583cdeb8895d 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1370,6 +1370,13 @@ static inline unsigned int bdev_dma_alignment(struct block_device *bdev)
return queue_dma_alignment(bdev_get_queue(bdev));
}
+static inline bool bvev_iter_is_aligned(struct block_device *bdev,
+ struct iov_iter *iter)
+{
+ return iov_iter_is_aligned(iter, bdev_dma_alignment(bdev),
+ bdev_logical_block_size(bdev) - 1);
+}
+
static inline int blk_rq_aligned(struct request_queue *q, unsigned long addr,
unsigned int len)
{
--
2.30.2
next prev parent reply other threads:[~2022-05-31 19:16 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-31 19:11 [PATCHv5 00/11] direct-io dma alignment Keith Busch
2022-05-31 19:11 ` [PATCHv5 01/11] block: fix infinite loop for invalid zone append Keith Busch
2022-06-01 8:03 ` Johannes Thumshirn
2022-05-31 19:11 ` [PATCHv5 02/11] block/bio: remove duplicate append pages code Keith Busch
2022-05-31 19:11 ` [PATCHv5 03/11] block: export dma_alignment attribute Keith Busch
2022-05-31 19:11 ` [PATCHv5 04/11] block: introduce bdev_dma_alignment helper Keith Busch
2022-05-31 19:11 ` [PATCHv5 05/11] block: add a helper function for dio alignment Keith Busch
2022-06-01 5:29 ` Christoph Hellwig
2022-06-01 8:04 ` Johannes Thumshirn
2022-05-31 19:11 ` [PATCHv5 06/11] block/merge: count bytes instead of sectors Keith Busch
2022-06-01 8:05 ` Johannes Thumshirn
2022-05-31 19:11 ` [PATCHv5 08/11] iov: introduce iov_iter_aligned Keith Busch
2022-06-01 5:30 ` Christoph Hellwig
2022-05-31 19:11 ` Keith Busch [this message]
2022-05-31 21:46 ` [PATCHv5 09/11] block: introduce bdev_iter_is_aligned helper Eric Biggers
2022-06-01 5:31 ` Christoph Hellwig
2022-05-31 19:11 ` [PATCHv5 10/11] block: relax direct io memory alignment Keith Busch
2022-06-01 5:31 ` Christoph Hellwig
2022-05-31 19:11 ` [PATCHv5 11/11] fs: add support for dma aligned direct-io Keith Busch
2022-06-01 5:32 ` Christoph Hellwig
[not found] ` <20220531191137.2291467-8-kbusch@fb.com>
2022-06-01 7:04 ` [PATCHv5 07/11] block/bounce: count bytes instead of sectors Eric Biggers
2022-06-01 7:11 ` [PATCHv5 00/11] direct-io dma alignment Eric Biggers
2022-06-01 14:28 ` Keith Busch
2022-06-01 16:12 ` Keith Busch
2022-06-06 16:24 ` Keith Busch
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