From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Jeff Moyer <jmoyer@redhat.com>, Christoph Hellwig <hch@lst.de>,
Jan Kara <jack@suse.cz>, Dan Williams <dan.j.williams@intel.com>,
Sasha Levin <sashal@kernel.org>,
linux-fsdevel@vger.kernel.org, linux-nvdimm@lists.01.org
Subject: [PATCH AUTOSEL 4.14 03/21] dax: pass NOWAIT flag to iomap_apply
Date: Sat, 22 Feb 2020 21:23:53 -0500 [thread overview]
Message-ID: <20200223022411.2159-3-sashal@kernel.org> (raw)
In-Reply-To: <20200223022411.2159-1-sashal@kernel.org>
From: Jeff Moyer <jmoyer@redhat.com>
[ Upstream commit 96222d53842dfe54869ec4e1b9d4856daf9105a2 ]
fstests generic/471 reports a failure when run with MOUNT_OPTIONS="-o
dax". The reason is that the initial pwrite to an empty file with the
RWF_NOWAIT flag set does not return -EAGAIN. It turns out that
dax_iomap_rw doesn't pass that flag through to iomap_apply.
With this patch applied, generic/471 passes for me.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/x49r1z86e1d.fsf@segfault.boston.devel.redhat.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/dax.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/dax.c b/fs/dax.c
index ddb4981ae32eb..34a55754164f4 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1057,6 +1057,9 @@ dax_iomap_rw(struct kiocb *iocb, struct iov_iter *iter,
lockdep_assert_held(&inode->i_rwsem);
}
+ if (iocb->ki_flags & IOCB_NOWAIT)
+ flags |= IOMAP_NOWAIT;
+
while (iov_iter_count(iter)) {
ret = iomap_apply(inode, pos, iov_iter_count(iter), flags, ops,
iter, dax_iomap_actor);
--
2.20.1
next prev parent reply other threads:[~2020-02-23 2:28 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-23 2:23 [PATCH AUTOSEL 4.14 01/21] ipmi:ssif: Handle a possible NULL pointer reference Sasha Levin
2020-02-23 2:23 ` [PATCH AUTOSEL 4.14 02/21] drm/msm: Set dma maximum segment size for mdss Sasha Levin
2020-02-23 2:23 ` Sasha Levin [this message]
2020-02-23 2:23 ` [PATCH AUTOSEL 4.14 04/21] mac80211: consider more elements in parsing CRC Sasha Levin
2020-02-23 2:23 ` [PATCH AUTOSEL 4.14 05/21] cfg80211: check wiphy driver existence for drvinfo report Sasha Levin
2020-02-23 2:23 ` [PATCH AUTOSEL 4.14 06/21] qmi_wwan: re-add DW5821e pre-production variant Sasha Levin
2020-02-23 2:23 ` [PATCH AUTOSEL 4.14 07/21] qmi_wwan: unconditionally reject 2 ep interfaces Sasha Levin
2020-02-23 2:23 ` [PATCH AUTOSEL 4.14 08/21] arm/ftrace: Fix BE text poking Sasha Levin
2020-02-23 2:23 ` [PATCH AUTOSEL 4.14 09/21] net: ena: fix potential crash when rxfh key is NULL Sasha Levin
2020-02-23 2:24 ` [PATCH AUTOSEL 4.14 10/21] net: ena: fix uses of round_jiffies() Sasha Levin
2020-02-23 2:24 ` [PATCH AUTOSEL 4.14 11/21] net: ena: add missing ethtool TX timestamping indication Sasha Levin
2020-02-23 2:24 ` [PATCH AUTOSEL 4.14 12/21] net: ena: fix incorrect default RSS key Sasha Levin
2020-02-23 2:24 ` [PATCH AUTOSEL 4.14 13/21] net: ena: rss: fix failure to get indirection table Sasha Levin
2020-02-23 2:24 ` [PATCH AUTOSEL 4.14 14/21] net: ena: rss: store hash function as values and not bits Sasha Levin
2020-02-23 2:24 ` [PATCH AUTOSEL 4.14 15/21] net: ena: fix incorrectly saving queue numbers when setting RSS indirection table Sasha Levin
2020-02-23 2:24 ` [PATCH AUTOSEL 4.14 16/21] net: ena: ethtool: use correct value for crc32 hash Sasha Levin
2020-02-23 2:24 ` [PATCH AUTOSEL 4.14 17/21] net: ena: ena-com.c: prevent NULL pointer dereference Sasha Levin
2020-02-23 2:24 ` [PATCH AUTOSEL 4.14 18/21] enic: prevent waking up stopped tx queues over watchdog reset Sasha Levin
2020-02-23 2:24 ` [PATCH AUTOSEL 4.14 19/21] cifs: Fix mode output in debugging statements Sasha Levin
2020-02-23 2:24 ` [PATCH AUTOSEL 4.14 20/21] bcache: ignore pending signals when creating gc and allocator thread Sasha Levin
2020-02-23 2:24 ` [PATCH AUTOSEL 4.14 21/21] cfg80211: add missing policy for NL80211_ATTR_STATUS_CODE Sasha Levin
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