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From: Stefan Roesch <[email protected]>
To: <[email protected]>, <[email protected]>,
	<[email protected]>, <[email protected]>,
	<[email protected]>
Cc: <[email protected]>, <[email protected]>, <[email protected]>,
	<[email protected]>, <[email protected]>, <[email protected]>
Subject: [RESEND PATCH v9 06/14] iomap: Return -EAGAIN from iomap_write_iter()
Date: Thu, 23 Jun 2022 10:51:49 -0700	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

If iomap_write_iter() encounters -EAGAIN, return -EAGAIN to the caller.

Signed-off-by: Stefan Roesch <[email protected]>
---
 fs/iomap/buffered-io.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 83cf093fcb92..f2e36240079f 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -830,7 +830,13 @@ static loff_t iomap_write_iter(struct iomap_iter *iter, struct iov_iter *i)
 		length -= status;
 	} while (iov_iter_count(i) && length);
 
-	return written ? written : status;
+	if (status == -EAGAIN) {
+		iov_iter_revert(i, written);
+		return -EAGAIN;
+	}
+	if (written)
+		return written;
+	return status;
 }
 
 ssize_t
-- 
2.30.2


  parent reply	other threads:[~2022-06-23 19:02 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-23 17:51 [RESEND PATCH v9 00/14] io-uring/xfs: support async buffered writes Stefan Roesch
2022-06-23 17:51 ` [RESEND PATCH v9 01/14] mm: Move starting of background writeback into the main balancing loop Stefan Roesch
2022-06-23 17:51 ` [RESEND PATCH v9 02/14] mm: Move updates of dirty_exceeded into one place Stefan Roesch
2022-06-23 17:51 ` [RESEND PATCH v9 03/14] mm: Add balance_dirty_pages_ratelimited_flags() function Stefan Roesch
2022-06-23 17:51 ` [RESEND PATCH v9 05/14] iomap: Add async buffered write support Stefan Roesch
2022-06-23 17:51 ` Stefan Roesch [this message]
2022-06-23 20:18   ` [RESEND PATCH v9 06/14] iomap: Return -EAGAIN from iomap_write_iter() Darrick J. Wong
2022-06-23 20:23     ` Stefan Roesch
2022-06-23 20:32       ` Darrick J. Wong
2022-06-24  5:19   ` Christoph Hellwig
2022-06-23 17:51 ` [RESEND PATCH v9 09/14] fs: Split off inode_needs_update_time and __file_update_time Stefan Roesch
2022-06-23 17:51 ` [RESEND PATCH v9 11/14] io_uring: Add support for async buffered writes Stefan Roesch
2022-06-23 17:51 ` [RESEND PATCH v9 12/14] io_uring: Add tracepoint for short writes Stefan Roesch
2022-06-23 17:51 ` [RESEND PATCH v9 14/14] xfs: Add async buffered write support Stefan Roesch
2022-06-23 20:31 ` [RESEND PATCH v9 00/14] io-uring/xfs: support async buffered writes Darrick J. Wong
2022-06-23 22:06   ` Jens Axboe
2022-06-24  5:14   ` Christoph Hellwig
2022-06-24 14:49     ` Jens Axboe
2022-06-24 15:27       ` Ammar Faizi
2022-06-24 15:29         ` Jens Axboe
     [not found] ` <[email protected]>
2022-06-24  5:21   ` [RESEND PATCH v9 07/14] fs: Add check for async buffered writes to generic_write_checks Christoph Hellwig
2022-06-24 14:48     ` Jens Axboe
2022-06-24 17:06     ` Jens Axboe
2022-06-25 12:48 ` (subset) [RESEND PATCH v9 00/14] io-uring/xfs: support async buffered writes Jens Axboe
     [not found] ` <[email protected]>
2023-03-03  4:51   ` [RESEND PATCH v9 04/14] iomap: Add flags parameter to iomap_page_create() Matthew Wilcox
2023-03-03 16:53     ` Darrick J. Wong
2023-03-03 17:29       ` Stefan Roesch
2023-03-06 13:03         ` Christoph Hellwig

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