The Linux Kernel Mailing List
 help / color / mirror / Atom feed
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: "Darrick J. Wong" <djwong@kernel.org>, Jan Kara <jack@suse.cz>,
	Christoph Hellwig <hch@lst.de>,
	Christian Brauner <brauner@kernel.org>,
	Sasha Levin <sashal@kernel.org>,
	viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org
Subject: [PATCH AUTOSEL 5.16 22/42] vfs: make sync_filesystem return errors from ->sync_fs
Date: Wed,  9 Feb 2022 13:32:54 -0500	[thread overview]
Message-ID: <20220209183335.46545-22-sashal@kernel.org> (raw)
In-Reply-To: <20220209183335.46545-1-sashal@kernel.org>

From: "Darrick J. Wong" <djwong@kernel.org>

[ Upstream commit 5679897eb104cec9e99609c3f045a0c20603da4c ]

Strangely, sync_filesystem ignores the return code from the ->sync_fs
call, which means that syscalls like syncfs(2) never see the error.
This doesn't seem right, so fix that.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/sync.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/fs/sync.c b/fs/sync.c
index 3ce8e2137f310..c7690016453e4 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -29,7 +29,7 @@
  */
 int sync_filesystem(struct super_block *sb)
 {
-	int ret;
+	int ret = 0;
 
 	/*
 	 * We need to be protected against the filesystem going from
@@ -52,15 +52,21 @@ int sync_filesystem(struct super_block *sb)
 	 * at a time.
 	 */
 	writeback_inodes_sb(sb, WB_REASON_SYNC);
-	if (sb->s_op->sync_fs)
-		sb->s_op->sync_fs(sb, 0);
+	if (sb->s_op->sync_fs) {
+		ret = sb->s_op->sync_fs(sb, 0);
+		if (ret)
+			return ret;
+	}
 	ret = sync_blockdev_nowait(sb->s_bdev);
-	if (ret < 0)
+	if (ret)
 		return ret;
 
 	sync_inodes_sb(sb);
-	if (sb->s_op->sync_fs)
-		sb->s_op->sync_fs(sb, 1);
+	if (sb->s_op->sync_fs) {
+		ret = sb->s_op->sync_fs(sb, 1);
+		if (ret)
+			return ret;
+	}
 	return sync_blockdev(sb->s_bdev);
 }
 EXPORT_SYMBOL(sync_filesystem);
-- 
2.34.1


  parent reply	other threads:[~2022-02-09 18:37 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-09 18:32 [PATCH AUTOSEL 5.16 01/42] ASoC: mediatek: fix unmet dependency on GPIOLIB for SND_SOC_DMIC Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 02/42] platform/x86: touchscreen_dmi: Add info for the RWC NANOTE P8 AY07J 2-in-1 Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 03/42] platform/x86: ISST: Fix possible circular locking dependency detected Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 04/42] platform/x86: amd-pmc: Correct usage of SMU version Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 05/42] kunit: tool: Import missing importlib.abc Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 06/42] selftests: rtc: Increase test timeout so that all tests run Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 07/42] kselftest: signal all child processes Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 08/42] selftests: netfilter: reduce zone stress test running time Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 09/42] selftests: netfilter: check stateless nat udp checksum fixup Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 10/42] net: ieee802154: at86rf230: Stop leaking skb's Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 11/42] selftests/zram: Skip max_comp_streams interface on newer kernel Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 12/42] selftests/zram01.sh: Fix compression ratio calculation Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 13/42] selftests/zram: Adapt the situation that /dev/zram0 is being used Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 14/42] selftests: openat2: Print also errno in failure messages Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 15/42] selftests: openat2: Add missing dependency in Makefile Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 16/42] selftests: openat2: Skip testcases that fail with EOPNOTSUPP Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 17/42] selftests: skip mincore.check_file_mmap when fs lacks needed support Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 18/42] ax25: improve the incomplete fix to avoid UAF and NPD bugs Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 19/42] cifs: unlock chan_lock before calling cifs_put_tcp_session Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 20/42] pinctrl: bcm63xx: fix unmet dependency on REGMAP for GPIO_REGMAP Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 21/42] vfs: make freeze_super abort when sync_filesystem returns error Sasha Levin
2022-02-09 18:32 ` Sasha Levin [this message]
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 23/42] quota: make dquot_quota_sync return errors from ->sync_fs Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 24/42] iommu: Fix potential use-after-free during probe Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 25/42] scsi: pm80xx: Fix double completion for SATA devices Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 26/42] kselftest: Fix vdso_test_abi return status Sasha Levin
2022-02-09 18:32 ` [PATCH AUTOSEL 5.16 27/42] scsi: core: Reallocate device's budget map on queue depth change Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 28/42] scsi: pm8001: Fix use-after-free for aborted TMF sas_task Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 29/42] scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 30/42] drm/amd: Warn users about potential s0ix problems Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 31/42] mailmap: update Christian Brauner's email address Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 32/42] nvme: fix a possible use-after-free in controller reset during load Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 33/42] nvme-tcp: fix possible use-after-free in transport error_recovery work Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 34/42] nvme-rdma: " Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 35/42] net: sparx5: do not refer to skb after passing it on Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 36/42] drm/amd: add support to check whether the system is set to s3 Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 37/42] drm/amd: Only run s3 or s0ix if system is configured properly Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 38/42] drm/amdgpu: fix logic inversion in check Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 39/42] x86/Xen: streamline (and fix) PV CPU enumeration Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 40/42] Revert "module, async: async_synchronize_full() on module init iff async is used" Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 41/42] gcc-plugins/stackleak: Use noinstr in favor of notrace Sasha Levin
2022-02-09 18:33 ` [PATCH AUTOSEL 5.16 42/42] random: wake up /dev/random writers after zap Sasha Levin

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220209183335.46545-22-sashal@kernel.org \
    --to=sashal@kernel.org \
    --cc=brauner@kernel.org \
    --cc=djwong@kernel.org \
    --cc=hch@lst.de \
    --cc=jack@suse.cz \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=stable@vger.kernel.org \
    --cc=viro@zeniv.linux.org.uk \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox