From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Jack Morgenstein <jackm@dev.mellanox.co.il>,
Leon Romanovsky <leonro@mellanox.com>,
Jason Gunthorpe <jgg@mellanox.com>,
Sasha Levin <sashal@kernel.org>,
linux-rdma@vger.kernel.org
Subject: [PATCH AUTOSEL 4.4 06/21] IB/mlx4: Fix race condition between catas error reset and aliasguid flows
Date: Fri, 29 Mar 2019 20:56:34 -0400 [thread overview]
Message-ID: <20190330005649.28475-6-sashal@kernel.org> (raw)
In-Reply-To: <20190330005649.28475-1-sashal@kernel.org>
From: Jack Morgenstein <jackm@dev.mellanox.co.il>
[ Upstream commit 587443e7773e150ae29e643ee8f41a1eed226565 ]
Code review revealed a race condition which could allow the catas error
flow to interrupt the alias guid query post mechanism at random points.
Thiis is fixed by doing cancel_delayed_work_sync() instead of
cancel_delayed_work() during the alias guid mechanism destroy flow.
Fixes: a0c64a17aba8 ("mlx4: Add alias_guid mechanism")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/hw/mlx4/alias_GUID.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/mlx4/alias_GUID.c b/drivers/infiniband/hw/mlx4/alias_GUID.c
index 21cb41a60fe8..3a70b418d913 100644
--- a/drivers/infiniband/hw/mlx4/alias_GUID.c
+++ b/drivers/infiniband/hw/mlx4/alias_GUID.c
@@ -805,8 +805,8 @@ void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev)
unsigned long flags;
for (i = 0 ; i < dev->num_ports; i++) {
- cancel_delayed_work(&dev->sriov.alias_guid.ports_guid[i].alias_guid_work);
det = &sriov->alias_guid.ports_guid[i];
+ cancel_delayed_work_sync(&det->alias_guid_work);
spin_lock_irqsave(&sriov->alias_guid.ag_work_lock, flags);
while (!list_empty(&det->cb_list)) {
cb_ctx = list_entry(det->cb_list.next,
--
2.19.1
next prev parent reply other threads:[~2019-03-30 1:00 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-30 0:56 [PATCH AUTOSEL 4.4 01/21] perf/core: Restore mmap record type correctly Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 02/21] ext4: add missing brelse() in add_new_gdb_meta_bg() Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 03/21] ext4: report real fs size after failed resize Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 04/21] ALSA: echoaudio: add a check for ioremap_nocache Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 05/21] ALSA: sb8: add a check for request_region Sasha Levin
2019-03-30 0:56 ` Sasha Levin [this message]
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 07/21] mmc: davinci: remove extraneous __init annotation Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 08/21] ALSA: opl3: fix mismatch between snd_opl3_drum_switch definition and declaration Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 09/21] thermal/int340x_thermal: Add additional UUIDs Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 10/21] thermal/int340x_thermal: fix mode setting Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 11/21] tools/power turbostat: return the exit status of a command Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 12/21] perf top: Fix error handling in cmd_top() Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 13/21] perf evsel: Free evsel->counts in perf_evsel__exit() Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 14/21] perf tests: Fix a memory leak of cpu_map object in the openat_syscall_event_on_all_cpus test Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 15/21] perf tests: Fix a memory leak in test__perf_evsel__tp_sched_test() Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 16/21] x86/hpet: Prevent potential NULL pointer dereference Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 17/21] x86/cpu/cyrix: Use correct macros for Cyrix calls on Geode processors Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 18/21] iommu/vt-d: Check capability before disabling protected memory Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 19/21] x86/hw_breakpoints: Make default case in hw_breakpoint_arch_parse() return an error Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 20/21] fix incorrect error code mapping for OBJECTID_NOT_FOUND Sasha Levin
2019-03-30 0:56 ` [PATCH AUTOSEL 4.4 21/21] ext4: prohibit fstrim in norecovery mode 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=20190330005649.28475-6-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=jackm@dev.mellanox.co.il \
--cc=jgg@mellanox.com \
--cc=leonro@mellanox.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rdma@vger.kernel.org \
--cc=stable@vger.kernel.org \
/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;
as well as URLs for NNTP newsgroup(s).