<feed xmlns='http://www.w3.org/2005/Atom'>
<title>litmus-rt-ext-res.git/drivers/net/bonding, branch EXT-RES</title>
<subtitle>LITMUS^RT with extended reservations for Forbidden Zones paper @ RTAS'20</subtitle>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt-ext-res.git/'/>
<entry>
<title>Merge branch 'work.uaccess2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs</title>
<updated>2016-10-12T06:38:39+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2016-10-12T06:38:39+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt-ext-res.git/commit/?id=4cdf8dbe2d4b3891a9abd9f9ec32acbe58de0cf6'/>
<id>4cdf8dbe2d4b3891a9abd9f9ec32acbe58de0cf6</id>
<content type='text'>
Pull uaccess.h prepwork from Al Viro:
 "Preparations to tree-wide switch to use of linux/uaccess.h (which,
  obviously, will allow to start unifying stuff for real). The last step
  there, ie

    PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*&lt;asm/uaccess.h&gt;'
    sed -i -e "s!$PATT!#include &lt;linux/uaccess.h&gt;!" \
            `git grep -l "$PATT"|grep -v ^include/linux/uaccess.h`

  is not taken here - I would prefer to do it once just before or just
  after -rc1.  However, everything should be ready for it"

* 'work.uaccess2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  remove a stray reference to asm/uaccess.h in docs
  sparc64: separate extable_64.h, switch elf_64.h to it
  score: separate extable.h, switch module.h to it
  mips: separate extable.h, switch module.h to it
  x86: separate extable.h, switch sections.h to it
  remove stray include of asm/uaccess.h from cacheflush.h
  mn10300: remove a bogus processor.h-&gt;uaccess.h include
  xtensa: split uaccess.h into C and asm sides
  bonding: quit messing with IOCTL
  kill __kernel_ds_p off
  mn10300: finish verify_area() off
  frv: move HAVE_ARCH_UNMAPPED_AREA to pgtable.h
  exceptions: detritus removal
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull uaccess.h prepwork from Al Viro:
 "Preparations to tree-wide switch to use of linux/uaccess.h (which,
  obviously, will allow to start unifying stuff for real). The last step
  there, ie

    PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*&lt;asm/uaccess.h&gt;'
    sed -i -e "s!$PATT!#include &lt;linux/uaccess.h&gt;!" \
            `git grep -l "$PATT"|grep -v ^include/linux/uaccess.h`

  is not taken here - I would prefer to do it once just before or just
  after -rc1.  However, everything should be ready for it"

* 'work.uaccess2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  remove a stray reference to asm/uaccess.h in docs
  sparc64: separate extable_64.h, switch elf_64.h to it
  score: separate extable.h, switch module.h to it
  mips: separate extable.h, switch module.h to it
  x86: separate extable.h, switch sections.h to it
  remove stray include of asm/uaccess.h from cacheflush.h
  mn10300: remove a bogus processor.h-&gt;uaccess.h include
  xtensa: split uaccess.h into C and asm sides
  bonding: quit messing with IOCTL
  kill __kernel_ds_p off
  mn10300: finish verify_area() off
  frv: move HAVE_ARCH_UNMAPPED_AREA to pgtable.h
  exceptions: detritus removal
</pre>
</div>
</content>
</entry>
<entry>
<title>bonding: quit messing with IOCTL</title>
<updated>2016-09-28T01:15:21+00:00</updated>
<author>
<name>Al Viro</name>
<email>viro@zeniv.linux.org.uk</email>
</author>
<published>2016-09-03T23:37:25+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt-ext-res.git/commit/?id=4ad41c1e2616a64c9e789d7069b1cb3402d2af3a'/>
<id>4ad41c1e2616a64c9e789d7069b1cb3402d2af3a</id>
<content type='text'>
The only remaining users are issuing SIOCGMIIPHY and SIOCGMIIREG,
neither of which deals with userland pointers.  Simply calling
-&gt;ndo_do_ioctl() is fine; no messing with set_fs() is needed.
It used to mess with SIOCETHTOOL, which would've needed set_fs(),
but that has been killed in "[NET] ethtool ops are the only way"
9 years ago...

Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The only remaining users are issuing SIOCGMIIPHY and SIOCGMIIREG,
neither of which deals with userland pointers.  Simply calling
-&gt;ndo_do_ioctl() is fine; no messing with set_fs() is needed.
It used to mess with SIOCETHTOOL, which would've needed set_fs(),
but that has been killed in "[NET] ethtool ops are the only way"
9 years ago...

Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net</title>
<updated>2016-09-12T22:52:44+00:00</updated>
<author>
<name>David S. Miller</name>
<email>davem@davemloft.net</email>
</author>
<published>2016-09-12T22:52:44+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt-ext-res.git/commit/?id=b20b378d49926b82c0a131492fa8842156e0e8a9'/>
<id>b20b378d49926b82c0a131492fa8842156e0e8a9</id>
<content type='text'>
Conflicts:
	drivers/net/ethernet/mediatek/mtk_eth_soc.c
	drivers/net/ethernet/qlogic/qed/qed_dcbx.c
	drivers/net/phy/Kconfig

All conflicts were cases of overlapping commits.

Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Conflicts:
	drivers/net/ethernet/mediatek/mtk_eth_soc.c
	drivers/net/ethernet/qlogic/qed/qed_dcbx.c
	drivers/net/phy/Kconfig

All conflicts were cases of overlapping commits.

Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>bonding: Fix bonding crash</title>
<updated>2016-09-04T18:41:12+00:00</updated>
<author>
<name>Mahesh Bandewar</name>
<email>maheshb@google.com</email>
</author>
<published>2016-09-02T05:18:34+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt-ext-res.git/commit/?id=24b27fc4cdf9e10c5e79e5923b6b7c2c5c95096c'/>
<id>24b27fc4cdf9e10c5e79e5923b6b7c2c5c95096c</id>
<content type='text'>
Following few steps will crash kernel -

  (a) Create bonding master
      &gt; modprobe bonding miimon=50
  (b) Create macvlan bridge on eth2
      &gt; ip link add link eth2 dev mvl0 address aa:0:0:0:0:01 \
	   type macvlan
  (c) Now try adding eth2 into the bond
      &gt; echo +eth2 &gt; /sys/class/net/bond0/bonding/slaves
      &lt;crash&gt;

Bonding does lots of things before checking if the device enslaved is
busy or not.

In this case when the notifier call-chain sends notifications, the
bond_netdev_event() assumes that the rx_handler /rx_handler_data is
registered while the bond_enslave() hasn't progressed far enough to
register rx_handler for the new slave.

This patch adds a rx_handler check that can be performed right at the
beginning of the enslave code to avoid getting into this situation.

Signed-off-by: Mahesh Bandewar &lt;maheshb@google.com&gt;
Acked-by: Eric Dumazet &lt;edumazet@google.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Following few steps will crash kernel -

  (a) Create bonding master
      &gt; modprobe bonding miimon=50
  (b) Create macvlan bridge on eth2
      &gt; ip link add link eth2 dev mvl0 address aa:0:0:0:0:01 \
	   type macvlan
  (c) Now try adding eth2 into the bond
      &gt; echo +eth2 &gt; /sys/class/net/bond0/bonding/slaves
      &lt;crash&gt;

Bonding does lots of things before checking if the device enslaved is
busy or not.

In this case when the notifier call-chain sends notifications, the
bond_netdev_event() assumes that the rx_handler /rx_handler_data is
registered while the bond_enslave() hasn't progressed far enough to
register rx_handler for the new slave.

This patch adds a rx_handler check that can be performed right at the
beginning of the enslave code to avoid getting into this situation.

Signed-off-by: Mahesh Bandewar &lt;maheshb@google.com&gt;
Acked-by: Eric Dumazet &lt;edumazet@google.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>bonding: Remove deprecated create_singlethread_workqueue</title>
<updated>2016-09-01T23:41:07+00:00</updated>
<author>
<name>Bhaktipriya Shridhar</name>
<email>bhaktipriya96@gmail.com</email>
</author>
<published>2016-08-30T16:32:01+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt-ext-res.git/commit/?id=f9f225ebf54992dd52fea198d32a329e7fab6eb6'/>
<id>f9f225ebf54992dd52fea198d32a329e7fab6eb6</id>
<content type='text'>
alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "wq" queues multiple work items viz
&amp;bond-&gt;mcast_work, &amp;nnw-&gt;work, &amp;bond-&gt;mii_work, &amp;bond-&gt;arp_work,
&amp;bond-&gt;alb_work, &amp;bond-&gt;mii_work, &amp;bond-&gt;ad_work, &amp;bond-&gt;slave_arr_work
which require strict execution ordering. Hence, an ordered dedicated
workqueue has been used.

Since, it is a network driver, WQ_MEM_RECLAIM has been set to
ensure forward progress under memory pressure.

Signed-off-by: Bhaktipriya Shridhar &lt;bhaktipriya96@gmail.com&gt;
Acked-by: Tejun Heo &lt;tj@kernel.org&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "wq" queues multiple work items viz
&amp;bond-&gt;mcast_work, &amp;nnw-&gt;work, &amp;bond-&gt;mii_work, &amp;bond-&gt;arp_work,
&amp;bond-&gt;alb_work, &amp;bond-&gt;mii_work, &amp;bond-&gt;ad_work, &amp;bond-&gt;slave_arr_work
which require strict execution ordering. Hence, an ordered dedicated
workqueue has been used.

Since, it is a network driver, WQ_MEM_RECLAIM has been set to
ensure forward progress under memory pressure.

Signed-off-by: Bhaktipriya Shridhar &lt;bhaktipriya96@gmail.com&gt;
Acked-by: Tejun Heo &lt;tj@kernel.org&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>bonding: fix the typo</title>
<updated>2016-08-09T21:57:14+00:00</updated>
<author>
<name>Zhu Yanjun</name>
<email>zyjzyj2000@gmail.com</email>
</author>
<published>2016-08-09T13:36:04+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt-ext-res.git/commit/?id=0d039f337f45c48fb78b80cbf7b706b4de7f07ea'/>
<id>0d039f337f45c48fb78b80cbf7b706b4de7f07ea</id>
<content type='text'>
The message "803.ad" should be "802.3ad".

Signed-off-by: Zhu Yanjun &lt;zyjzyj2000@gmail.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The message "803.ad" should be "802.3ad".

Signed-off-by: Zhu Yanjun &lt;zyjzyj2000@gmail.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>net/bonding: Enforce active-backup policy for IPoIB bonds</title>
<updated>2016-07-25T17:18:58+00:00</updated>
<author>
<name>Mark Bloch</name>
<email>markb@mellanox.com</email>
</author>
<published>2016-07-21T08:52:55+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt-ext-res.git/commit/?id=1533e77315220dc1d5ec3bd6d9fe32e2aa0a74c0'/>
<id>1533e77315220dc1d5ec3bd6d9fe32e2aa0a74c0</id>
<content type='text'>
When using an IPoIB bond currently only active-backup mode is a valid
use case and this commit strengthens it.

Since commit 2ab82852a270 ("net/bonding: Enable bonding to enslave
netdevices not supporting set_mac_address()") was introduced till
4.7-rc1, IPoIB didn't support the set_mac_address ndo, and hence the
fail over mac policy always applied to IPoIB bonds.

With the introduction of commit 492a7e67ff83 ("IB/IPoIB: Allow setting
the device address"), that doesn't hold and practically IPoIB bonds are
broken as of that. To fix it, lets go to fail over mac if the device
doesn't support the ndo OR this is IPoIB device.

As a by-product, this commit also prevents a stack corruption which
occurred when trying to copy 20 bytes (IPoIB) device address
to a sockaddr struct that has only 16 bytes of storage.

Signed-off-by: Mark Bloch &lt;markb@mellanox.com&gt;
Signed-off-by: Or Gerlitz &lt;ogerlitz@mellanox.com&gt;
Signed-off-by: Saeed Mahameed &lt;saeedm@mellanox.com&gt;
Acked-by: Andy Gospodarek &lt;gospo@cumulusnetworks.com&gt;
Signed-off-by: Jay Vosburgh &lt;jay.vosburgh@canonical.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
When using an IPoIB bond currently only active-backup mode is a valid
use case and this commit strengthens it.

Since commit 2ab82852a270 ("net/bonding: Enable bonding to enslave
netdevices not supporting set_mac_address()") was introduced till
4.7-rc1, IPoIB didn't support the set_mac_address ndo, and hence the
fail over mac policy always applied to IPoIB bonds.

With the introduction of commit 492a7e67ff83 ("IB/IPoIB: Allow setting
the device address"), that doesn't hold and practically IPoIB bonds are
broken as of that. To fix it, lets go to fail over mac if the device
doesn't support the ndo OR this is IPoIB device.

As a by-product, this commit also prevents a stack corruption which
occurred when trying to copy 20 bytes (IPoIB) device address
to a sockaddr struct that has only 16 bytes of storage.

Signed-off-by: Mark Bloch &lt;markb@mellanox.com&gt;
Signed-off-by: Or Gerlitz &lt;ogerlitz@mellanox.com&gt;
Signed-off-by: Saeed Mahameed &lt;saeedm@mellanox.com&gt;
Acked-by: Andy Gospodarek &lt;gospo@cumulusnetworks.com&gt;
Signed-off-by: Jay Vosburgh &lt;jay.vosburgh@canonical.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net</title>
<updated>2016-07-24T04:53:32+00:00</updated>
<author>
<name>David S. Miller</name>
<email>davem@davemloft.net</email>
</author>
<published>2016-07-23T23:31:37+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt-ext-res.git/commit/?id=de0ba9a0d8909996f9e293d311c2cc459fa77d67'/>
<id>de0ba9a0d8909996f9e293d311c2cc459fa77d67</id>
<content type='text'>
Just several instances of overlapping changes.

Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Just several instances of overlapping changes.

Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>bonding: set carrier off for devices created through netlink</title>
<updated>2016-07-14T23:17:43+00:00</updated>
<author>
<name>Beniamino Galvani</name>
<email>bgalvani@redhat.com</email>
</author>
<published>2016-07-13T16:25:08+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt-ext-res.git/commit/?id=005db31d5f5f7c31cfdc43505d77eb3ca5cf8ec6'/>
<id>005db31d5f5f7c31cfdc43505d77eb3ca5cf8ec6</id>
<content type='text'>
Commit e826eafa65c6 ("bonding: Call netif_carrier_off after
register_netdevice") moved netif_carrier_off() from bond_init() to
bond_create(), but the latter is called only for initial default
devices and ones created through sysfs:

 $ modprobe bonding
 $ echo +bond1 &gt; /sys/class/net/bonding_masters
 $ ip link add bond2 type bond
 $ grep "MII Status" /proc/net/bonding/*
 /proc/net/bonding/bond0:MII Status: down
 /proc/net/bonding/bond1:MII Status: down
 /proc/net/bonding/bond2:MII Status: up

Ensure that carrier is initially off also for devices created through
netlink.

Signed-off-by: Beniamino Galvani &lt;bgalvani@redhat.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Commit e826eafa65c6 ("bonding: Call netif_carrier_off after
register_netdevice") moved netif_carrier_off() from bond_init() to
bond_create(), but the latter is called only for initial default
devices and ones created through sysfs:

 $ modprobe bonding
 $ echo +bond1 &gt; /sys/class/net/bonding_masters
 $ ip link add bond2 type bond
 $ grep "MII Status" /proc/net/bonding/*
 /proc/net/bonding/bond0:MII Status: down
 /proc/net/bonding/bond1:MII Status: down
 /proc/net/bonding/bond2:MII Status: up

Ensure that carrier is initially off also for devices created through
netlink.

Signed-off-by: Beniamino Galvani &lt;bgalvani@redhat.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net</title>
<updated>2016-07-06T17:35:22+00:00</updated>
<author>
<name>David S. Miller</name>
<email>davem@davemloft.net</email>
</author>
<published>2016-07-06T17:35:22+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt-ext-res.git/commit/?id=30d0844bdcea9fb8b0b3c8abfa5547bc3bcf8baa'/>
<id>30d0844bdcea9fb8b0b3c8abfa5547bc3bcf8baa</id>
<content type='text'>
Conflicts:
	drivers/net/ethernet/mellanox/mlx5/core/en.h
	drivers/net/ethernet/mellanox/mlx5/core/en_main.c
	drivers/net/usb/r8152.c

All three conflicts were overlapping changes.

Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Conflicts:
	drivers/net/ethernet/mellanox/mlx5/core/en.h
	drivers/net/ethernet/mellanox/mlx5/core/en_main.c
	drivers/net/usb/r8152.c

All three conflicts were overlapping changes.

Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
</feed>
