From: <gregkh@linuxfoundation.org>
To: jwi@linux.vnet.ibm.com, davem@davemloft.net, gregkh@linuxfoundation.org
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "s390/qeth: lock IP table while applying takeover changes" has been added to the 4.14-stable tree
Date: Sun, 31 Dec 2017 11:14:37 +0100 [thread overview]
Message-ID: <15147152771535@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
s390/qeth: lock IP table while applying takeover changes
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
s390-qeth-lock-ip-table-while-applying-takeover-changes.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From foo@baz Sun Dec 31 11:12:48 CET 2017
From: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Date: Wed, 13 Dec 2017 18:56:31 +0100
Subject: s390/qeth: lock IP table while applying takeover changes
From: Julian Wiedmann <jwi@linux.vnet.ibm.com>
[ Upstream commit 8a03a3692b100d84785ee7a834e9215e304c9e00 ]
Modifying the flags of an IP addr object needs to be protected against
eg. concurrent removal of the same object from the IP table.
Fixes: 5f78e29ceebf ("qeth: optimize IP handling in rx_mode callback")
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/s390/net/qeth_l3_sys.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/s390/net/qeth_l3_sys.c
+++ b/drivers/s390/net/qeth_l3_sys.c
@@ -395,6 +395,7 @@ static ssize_t qeth_l3_dev_ipato_enable_
goto out;
card->ipato.enabled = enable;
+ spin_lock_bh(&card->ip_lock);
hash_for_each(card->ip_htable, i, addr, hnode) {
if (addr->type != QETH_IP_TYPE_NORMAL)
continue;
@@ -403,6 +404,7 @@ static ssize_t qeth_l3_dev_ipato_enable_
else if (qeth_l3_is_addr_covered_by_ipato(card, addr))
addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
}
+ spin_unlock_bh(&card->ip_lock);
out:
mutex_unlock(&card->conf_mutex);
return rc ? rc : count;
Patches currently in stable-queue which might be from jwi@linux.vnet.ibm.com are
queue-4.14/s390-qeth-lock-ip-table-while-applying-takeover-changes.patch
queue-4.14/s390-qeth-fix-error-handling-in-checksum-cmd-callback.patch
queue-4.14/s390-qeth-apply-takeover-changes-when-mode-is-toggled.patch
queue-4.14/s390-qeth-update-takeover-ips-after-configuration-change.patch
queue-4.14/s390-qeth-don-t-apply-takeover-changes-to-rxip.patch
reply other threads:[~2017-12-31 10:15 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=15147152771535@kroah.com \
--to=gregkh@linuxfoundation.org \
--cc=davem@davemloft.net \
--cc=jwi@linux.vnet.ibm.com \
--cc=stable-commits@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).