From: Jens Axboe <axboe@kernel.dk>
To: io-uring@vger.kernel.org, linux-xfs@vger.kernel.org
Cc: hch@lst.de, andres@anarazel.de, david@fromorbit.com,
Jens Axboe <axboe@kernel.dk>
Subject: [PATCH 3/6] iomap: treat a write through cache the same as FUA
Date: Wed, 19 Jul 2023 13:54:14 -0600 [thread overview]
Message-ID: <20230719195417.1704513-4-axboe@kernel.dk> (raw)
In-Reply-To: <20230719195417.1704513-1-axboe@kernel.dk>
Whether we have a write back cache and are using FUA or don't have
a write back cache at all is the same situation. Treat them the same.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
fs/iomap/direct-io.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c
index 6b302bf8790b..b30c3edf2ef3 100644
--- a/fs/iomap/direct-io.c
+++ b/fs/iomap/direct-io.c
@@ -280,7 +280,8 @@ static loff_t iomap_dio_bio_iter(const struct iomap_iter *iter,
* cache flushes on IO completion.
*/
if (!(iomap->flags & (IOMAP_F_SHARED|IOMAP_F_DIRTY)) &&
- (dio->flags & IOMAP_DIO_WRITE_FUA) && bdev_fua(iomap->bdev))
+ (dio->flags & IOMAP_DIO_WRITE_FUA) &&
+ (bdev_fua(iomap->bdev) || !bdev_write_cache(iomap->bdev)))
use_fua = true;
}
--
2.40.1
next prev parent reply other threads:[~2023-07-19 19:54 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-19 19:54 [PATCHSET v3 0/6] Improve async iomap DIO performance Jens Axboe
2023-07-19 19:54 ` [PATCH 1/6] iomap: cleanup up iomap_dio_bio_end_io() Jens Axboe
2023-07-20 4:50 ` Christoph Hellwig
2023-07-20 16:13 ` Jens Axboe
2023-07-19 19:54 ` [PATCH 2/6] iomap: add IOMAP_DIO_INLINE_COMP Jens Axboe
2023-07-20 4:51 ` Christoph Hellwig
2023-07-20 16:19 ` Jens Axboe
2023-07-19 19:54 ` Jens Axboe [this message]
2023-07-20 4:54 ` [PATCH 3/6] iomap: treat a write through cache the same as FUA Christoph Hellwig
2023-07-20 16:23 ` Jens Axboe
2023-07-19 19:54 ` [PATCH 4/6] fs: add IOCB flags related to passing back dio completions Jens Axboe
2023-07-20 5:01 ` Christoph Hellwig
2023-07-20 16:25 ` Jens Axboe
2023-07-19 19:54 ` [PATCH 5/6] io_uring/rw: add write support for IOCB_DIO_DEFER Jens Axboe
2023-07-19 19:54 ` [PATCH 6/6] iomap: support IOCB_DIO_DEFER Jens Axboe
2023-07-20 4:59 ` Christoph Hellwig
2023-07-20 16:27 ` Jens Axboe
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