<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/include/uapi, branch v3.10-rc5</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>virtio_console: fix uapi header</title>
<updated>2013-05-20T00:55:28+00:00</updated>
<author>
<name>Michael S. Tsirkin</name>
<email>mst@redhat.com</email>
</author>
<published>2013-05-17T01:14:15+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=6407d75afd08545f2252bb39806ffd3f10c7faac'/>
<id>6407d75afd08545f2252bb39806ffd3f10c7faac</id>
<content type='text'>
uapi should use __u32 not u32.
Fix a macro in virtio_console.h which uses u32.

Signed-off-by: Michael S. Tsirkin &lt;mst@redhat.com&gt;
Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
Cc: stable@kernel.org
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
uapi should use __u32 not u32.
Fix a macro in virtio_console.h which uses u32.

Signed-off-by: Michael S. Tsirkin &lt;mst@redhat.com&gt;
Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
Cc: stable@kernel.org
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge git://git.infradead.org/users/eparis/audit</title>
<updated>2013-05-11T21:29:11+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2013-05-11T21:29:11+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=c4cc75c3321cad6f20d1e5325293890255c8a663'/>
<id>c4cc75c3321cad6f20d1e5325293890255c8a663</id>
<content type='text'>
Pull audit changes from Eric Paris:
 "Al used to send pull requests every couple of years but he told me to
  just start pushing them to you directly.

  Our touching outside of core audit code is pretty straight forward.  A
  couple of interface changes which hit net/.  A simple argument bug
  calling audit functions in namei.c and the removal of some assembly
  branch prediction code on ppc"

* git://git.infradead.org/users/eparis/audit: (31 commits)
  audit: fix message spacing printing auid
  Revert "audit: move kaudit thread start from auditd registration to kaudit init"
  audit: vfs: fix audit_inode call in O_CREAT case of do_last
  audit: Make testing for a valid loginuid explicit.
  audit: fix event coverage of AUDIT_ANOM_LINK
  audit: use spin_lock in audit_receive_msg to process tty logging
  audit: do not needlessly take a lock in tty_audit_exit
  audit: do not needlessly take a spinlock in copy_signal
  audit: add an option to control logging of passwords with pam_tty_audit
  audit: use spin_lock_irqsave/restore in audit tty code
  helper for some session id stuff
  audit: use a consistent audit helper to log lsm information
  audit: push loginuid and sessionid processing down
  audit: stop pushing loginid, uid, sessionid as arguments
  audit: remove the old depricated kernel interface
  audit: make validity checking generic
  audit: allow checking the type of audit message in the user filter
  audit: fix build break when AUDIT_DEBUG == 2
  audit: remove duplicate export of audit_enabled
  Audit: do not print error when LSMs disabled
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull audit changes from Eric Paris:
 "Al used to send pull requests every couple of years but he told me to
  just start pushing them to you directly.

  Our touching outside of core audit code is pretty straight forward.  A
  couple of interface changes which hit net/.  A simple argument bug
  calling audit functions in namei.c and the removal of some assembly
  branch prediction code on ppc"

* git://git.infradead.org/users/eparis/audit: (31 commits)
  audit: fix message spacing printing auid
  Revert "audit: move kaudit thread start from auditd registration to kaudit init"
  audit: vfs: fix audit_inode call in O_CREAT case of do_last
  audit: Make testing for a valid loginuid explicit.
  audit: fix event coverage of AUDIT_ANOM_LINK
  audit: use spin_lock in audit_receive_msg to process tty logging
  audit: do not needlessly take a lock in tty_audit_exit
  audit: do not needlessly take a spinlock in copy_signal
  audit: add an option to control logging of passwords with pam_tty_audit
  audit: use spin_lock_irqsave/restore in audit tty code
  helper for some session id stuff
  audit: use a consistent audit helper to log lsm information
  audit: push loginuid and sessionid processing down
  audit: stop pushing loginid, uid, sessionid as arguments
  audit: remove the old depricated kernel interface
  audit: make validity checking generic
  audit: allow checking the type of audit message in the user filter
  audit: fix build break when AUDIT_DEBUG == 2
  audit: remove duplicate export of audit_enabled
  Audit: do not print error when LSMs disabled
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs</title>
<updated>2013-05-09T20:07:40+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2013-05-09T20:07:40+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=983a5f84a4a11c8706ca70615125db711336b684'/>
<id>983a5f84a4a11c8706ca70615125db711336b684</id>
<content type='text'>
Pull btrfs update from Chris Mason:
 "These are mostly fixes.  The biggest exceptions are Josef's skinny
  extents and Jan Schmidt's code to rebuild our quota indexes if they
  get out of sync (or you enable quotas on an existing filesystem).

  The skinny extents are off by default because they are a new variation
  on the extent allocation tree format.  btrfstune -x enables them, and
  the new format makes the extent allocation tree about 30% smaller.

  I rebased this a few days ago to rework Dave Sterba's crc checks on
  the super block, but almost all of these go back to rc6, since I
  though 3.9 was due any minute.

  The biggest missing fix is the tracepoint bug that was hit late in
  3.9.  I ran into problems with that in overnight testing and I'm still
  tracking it down.  I'll definitely have that fixed for rc2."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (101 commits)
  Btrfs: allow superblock mismatch from older mkfs
  btrfs: enhance superblock checks
  btrfs: fix misleading variable name for flags
  btrfs: use unsigned long type for extent state bits
  Btrfs: improve the loop of scrub_stripe
  btrfs: read entire device info under lock
  btrfs: remove unused gfp mask parameter from release_extent_buffer callchain
  btrfs: handle errors returned from get_tree_block_key
  btrfs: make static code static &amp; remove dead code
  Btrfs: deal with errors in write_dev_supers
  Btrfs: remove almost all of the BUG()'s from tree-log.c
  Btrfs: deal with free space cache errors while replaying log
  Btrfs: automatic rescan after "quota enable" command
  Btrfs: rescan for qgroups
  Btrfs: split btrfs_qgroup_account_ref into four functions
  Btrfs: allocate new chunks if the space is not enough for global rsv
  Btrfs: separate sequence numbers for delayed ref tracking and tree mod log
  btrfs: move leak debug code to functions
  Btrfs: return free space in cow error path
  Btrfs: set UUID in root_item for created trees
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull btrfs update from Chris Mason:
 "These are mostly fixes.  The biggest exceptions are Josef's skinny
  extents and Jan Schmidt's code to rebuild our quota indexes if they
  get out of sync (or you enable quotas on an existing filesystem).

  The skinny extents are off by default because they are a new variation
  on the extent allocation tree format.  btrfstune -x enables them, and
  the new format makes the extent allocation tree about 30% smaller.

  I rebased this a few days ago to rework Dave Sterba's crc checks on
  the super block, but almost all of these go back to rc6, since I
  though 3.9 was due any minute.

  The biggest missing fix is the tracepoint bug that was hit late in
  3.9.  I ran into problems with that in overnight testing and I'm still
  tracking it down.  I'll definitely have that fixed for rc2."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (101 commits)
  Btrfs: allow superblock mismatch from older mkfs
  btrfs: enhance superblock checks
  btrfs: fix misleading variable name for flags
  btrfs: use unsigned long type for extent state bits
  Btrfs: improve the loop of scrub_stripe
  btrfs: read entire device info under lock
  btrfs: remove unused gfp mask parameter from release_extent_buffer callchain
  btrfs: handle errors returned from get_tree_block_key
  btrfs: make static code static &amp; remove dead code
  Btrfs: deal with errors in write_dev_supers
  Btrfs: remove almost all of the BUG()'s from tree-log.c
  Btrfs: deal with free space cache errors while replaying log
  Btrfs: automatic rescan after "quota enable" command
  Btrfs: rescan for qgroups
  Btrfs: split btrfs_qgroup_account_ref into four functions
  Btrfs: allocate new chunks if the space is not enough for global rsv
  Btrfs: separate sequence numbers for delayed ref tracking and tree mod log
  btrfs: move leak debug code to functions
  Btrfs: return free space in cow error path
  Btrfs: set UUID in root_item for created trees
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>if_cablemodem.h: Add parenthesis around ioctl macros</title>
<updated>2013-05-08T20:13:30+00:00</updated>
<author>
<name>Josh Boyer</name>
<email>jwboyer@redhat.com</email>
</author>
<published>2013-05-08T09:45:47+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=4f924b2aa4d3cb30f07e57d6b608838edcbc0d88'/>
<id>4f924b2aa4d3cb30f07e57d6b608838edcbc0d88</id>
<content type='text'>
Protect the SIOCGCM* ioctl macros with parenthesis.

Reported-by: Paul Wouters &lt;pwouters@redhat.com&gt;
Signed-off-by: Josh Boyer &lt;jwboyer@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>
Protect the SIOCGCM* ioctl macros with parenthesis.

Reported-by: Paul Wouters &lt;pwouters@redhat.com&gt;
Signed-off-by: Josh Boyer &lt;jwboyer@redhat.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>audit: Make testing for a valid loginuid explicit.</title>
<updated>2013-05-08T02:27:15+00:00</updated>
<author>
<name>Eric W. Biederman</name>
<email>ebiederm@xmission.com</email>
</author>
<published>2013-04-09T09:22:10+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=780a7654cee8d61819512385e778e4827db4bfbc'/>
<id>780a7654cee8d61819512385e778e4827db4bfbc</id>
<content type='text'>
audit rule additions containing "-F auid!=4294967295" were failing
with EINVAL because of a regression caused by e1760bd.

Apparently some userland audit rule sets want to know if loginuid uid
has been set and are using a test for auid != 4294967295 to determine
that.

In practice that is a horrible way to ask if a value has been set,
because it relies on subtle implementation details and will break
every time the uid implementation in the kernel changes.

So add a clean way to test if the audit loginuid has been set, and
silently convert the old idiom to the cleaner and more comprehensible
new idiom.

Cc: &lt;stable@vger.kernel.org&gt; # 3.7
Reported-By: Richard Guy Briggs &lt;rgb@redhat.com&gt;
Signed-off-by: "Eric W. Biederman" &lt;ebiederm@xmission.com&gt;
Tested-by: Richard Guy Briggs &lt;rgb@redhat.com&gt;
Signed-off-by: Eric Paris &lt;eparis@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
audit rule additions containing "-F auid!=4294967295" were failing
with EINVAL because of a regression caused by e1760bd.

Apparently some userland audit rule sets want to know if loginuid uid
has been set and are using a test for auid != 4294967295 to determine
that.

In practice that is a horrible way to ask if a value has been set,
because it relies on subtle implementation details and will break
every time the uid implementation in the kernel changes.

So add a clean way to test if the audit loginuid has been set, and
silently convert the old idiom to the cleaner and more comprehensible
new idiom.

Cc: &lt;stable@vger.kernel.org&gt; # 3.7
Reported-By: Richard Guy Briggs &lt;rgb@redhat.com&gt;
Signed-off-by: "Eric W. Biederman" &lt;ebiederm@xmission.com&gt;
Tested-by: Richard Guy Briggs &lt;rgb@redhat.com&gt;
Signed-off-by: Eric Paris &lt;eparis@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse</title>
<updated>2013-05-07T17:12:32+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2013-05-07T17:12:32+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=a26ea93a3d19c2b79e8b382356014eba607ce477'/>
<id>a26ea93a3d19c2b79e8b382356014eba607ce477</id>
<content type='text'>
Pull fuse updates from Miklos Szeredi:
 "This contains two patchsets from Maxim Patlasov.

  The first reworks the request throttling so that only async requests
  are throttled.  Wakeup of waiting async requests is also optimized.

  The second series adds support for async processing of direct IO which
  optimizes direct IO and enables the use of the AIO userspace
  interface."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: add flag to turn on async direct IO
  fuse: truncate file if async dio failed
  fuse: optimize short direct reads
  fuse: enable asynchronous processing direct IO
  fuse: make fuse_direct_io() aware about AIO
  fuse: add support of async IO
  fuse: move fuse_release_user_pages() up
  fuse: optimize wake_up
  fuse: implement exclusive wakeup for blocked_waitq
  fuse: skip blocking on allocations of synchronous requests
  fuse: add flag fc-&gt;initialized
  fuse: make request allocations for background processing explicit
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull fuse updates from Miklos Szeredi:
 "This contains two patchsets from Maxim Patlasov.

  The first reworks the request throttling so that only async requests
  are throttled.  Wakeup of waiting async requests is also optimized.

  The second series adds support for async processing of direct IO which
  optimizes direct IO and enables the use of the AIO userspace
  interface."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: add flag to turn on async direct IO
  fuse: truncate file if async dio failed
  fuse: optimize short direct reads
  fuse: enable asynchronous processing direct IO
  fuse: make fuse_direct_io() aware about AIO
  fuse: add support of async IO
  fuse: move fuse_release_user_pages() up
  fuse: optimize wake_up
  fuse: implement exclusive wakeup for blocked_waitq
  fuse: skip blocking on allocations of synchronous requests
  fuse: add flag fc-&gt;initialized
  fuse: make request allocations for background processing explicit
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net</title>
<updated>2013-05-06T22:51:10+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2013-05-06T22:51:10+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=51a26ae7a14b85c99c9be470c2d28eeeba0f26a3'/>
<id>51a26ae7a14b85c99c9be470c2d28eeeba0f26a3</id>
<content type='text'>
Pull networking fixes from David Miller:
 "Just a small pile of fixes"

 1) Fix race conditions in IP fragmentation LRU list handling, from
    Konstantin Khlebnikov.

 2) vfree() is no longer verboten in interrupts, so deferring is
    pointless, from Al Viro.

 3) Conversion from mutex to semaphore in netpoll left trylock test
    inverted, caught by Dan Carpenter.

 4) 3c59x uses wrong base address when releasing regions, from Sergei
    Shtylyov.

 5) Bounds checking in TIPC from Dan Carpenter.

 6) Fastopen cookies should not be expired as aggressively as other TCP
    metrics.  From Eric Dumazet.

 7) Fix retrieval of MAC address in ibmveth, from Ben Herrenschmidt.

 8) Don't use "u16" in virtio user headers, from Stephen Hemminger

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  tipc: potential divide by zero in tipc_link_recv_fragment()
  tipc: add a bounds check in link_recv_changeover_msg()
  net/usb: new driver for RTL8152
  3c59x: fix freeing nonexistent resource on driver unload
  netpoll: inverted down_trylock() test
  rps_dev_flow_table_release(): no need to delay vfree()
  fib_trie: no need to delay vfree()
  net: frag, fix race conditions in LRU list maintenance
  tcp: do not expire TCP fastopen cookies
  net/eth/ibmveth: Fixup retrieval of MAC address
  virtio: don't expose u16 in userspace api
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull networking fixes from David Miller:
 "Just a small pile of fixes"

 1) Fix race conditions in IP fragmentation LRU list handling, from
    Konstantin Khlebnikov.

 2) vfree() is no longer verboten in interrupts, so deferring is
    pointless, from Al Viro.

 3) Conversion from mutex to semaphore in netpoll left trylock test
    inverted, caught by Dan Carpenter.

 4) 3c59x uses wrong base address when releasing regions, from Sergei
    Shtylyov.

 5) Bounds checking in TIPC from Dan Carpenter.

 6) Fastopen cookies should not be expired as aggressively as other TCP
    metrics.  From Eric Dumazet.

 7) Fix retrieval of MAC address in ibmveth, from Ben Herrenschmidt.

 8) Don't use "u16" in virtio user headers, from Stephen Hemminger

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  tipc: potential divide by zero in tipc_link_recv_fragment()
  tipc: add a bounds check in link_recv_changeover_msg()
  net/usb: new driver for RTL8152
  3c59x: fix freeing nonexistent resource on driver unload
  netpoll: inverted down_trylock() test
  rps_dev_flow_table_release(): no need to delay vfree()
  fib_trie: no need to delay vfree()
  net: frag, fix race conditions in LRU list maintenance
  tcp: do not expire TCP fastopen cookies
  net/eth/ibmveth: Fixup retrieval of MAC address
  virtio: don't expose u16 in userspace api
</pre>
</div>
</content>
</entry>
<entry>
<title>Btrfs: rescan for qgroups</title>
<updated>2013-05-06T19:55:19+00:00</updated>
<author>
<name>Jan Schmidt</name>
<email>list.btrfs@jan-o-sch.net</email>
</author>
<published>2013-04-25T16:04:51+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=2f2320360b0c35b86938bfc561124474f0dac6e4'/>
<id>2f2320360b0c35b86938bfc561124474f0dac6e4</id>
<content type='text'>
If qgroup tracking is out of sync, a rescan operation can be started. It
iterates the complete extent tree and recalculates all qgroup tracking data.
This is an expensive operation and should not be used unless required.

A filesystem under rescan can still be umounted. The rescan continues on the
next mount.  Status information is provided with a separate ioctl while a
rescan operation is in progress.

Signed-off-by: Jan Schmidt &lt;list.btrfs@jan-o-sch.net&gt;
Signed-off-by: Josef Bacik &lt;jbacik@fusionio.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
If qgroup tracking is out of sync, a rescan operation can be started. It
iterates the complete extent tree and recalculates all qgroup tracking data.
This is an expensive operation and should not be used unless required.

A filesystem under rescan can still be umounted. The rescan continues on the
next mount.  Status information is provided with a separate ioctl while a
rescan operation is in progress.

Signed-off-by: Jan Schmidt &lt;list.btrfs@jan-o-sch.net&gt;
Signed-off-by: Josef Bacik &lt;jbacik@fusionio.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Btrfs: allow omitting stream header and end-cmd for btrfs send</title>
<updated>2013-05-06T19:54:44+00:00</updated>
<author>
<name>Stefan Behrens</name>
<email>sbehrens@giantdisaster.de</email>
</author>
<published>2013-04-10T17:10:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=c2c71324ecb471c932bc1ff59e46ffcf82f274fc'/>
<id>c2c71324ecb471c932bc1ff59e46ffcf82f274fc</id>
<content type='text'>
Two new flags are added to allow omitting the stream header and the
end command for btrfs send streams. This is used in cases where you
send multiple snapshots back-to-back in one stream.

This used to be encoded like this (with 2 snapshots in this example):
&lt;stream header&gt; + &lt;sequence of commands&gt; + &lt;end cmd&gt; +
&lt;stream header&gt; + &lt;sequence of commands&gt; + &lt;end cmd&gt; + EOF

The new format (if the two new flags are used) is this one:
&lt;stream header&gt; + &lt;sequence of commands&gt; +
                  &lt;sequence of commands&gt; + &lt;end cmd&gt;

Note that the currently existing receivers treat &lt;end cmd&gt; only as
an indication that a new &lt;stream header&gt; is following. This means,
you can just skip the sequence &lt;end cmd&gt; &lt;stream header&gt; without
loosing compatibility. As long as an EOF is following, the currently
existing receivers handle the new format (if the two new flags are
used) exactly as the old one.

So what is the benefit of this change? The goal is to be able to use
a single stream (one TCP connection) to multiplex a request/response
handshake plus Btrfs send streams, all in the same stream. In this
case you cannot evaluate an EOF condition as an end of the Btrfs send
stream. You need something else, and the &lt;end cmd&gt; is just perfect
for this purpose.

The summary is:
The format change is driven by the need to send several Btrfs send
streams over a single TCP connections, with the ability for a repeated
request/response handshake in the middle. And this format change does
not break any existing tool, it is completely compatible.

You could compare the old behaviour of the Btrfs send stream to the
one of ftp where you need a seperate request/response channel and
newly opened data transfer channels for each file, while the new
behaviour is more like http using a single stream for everything.

Signed-off-by: Stefan Behrens &lt;sbehrens@giantdisaster.de&gt;
Signed-off-by: Josef Bacik &lt;jbacik@fusionio.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Two new flags are added to allow omitting the stream header and the
end command for btrfs send streams. This is used in cases where you
send multiple snapshots back-to-back in one stream.

This used to be encoded like this (with 2 snapshots in this example):
&lt;stream header&gt; + &lt;sequence of commands&gt; + &lt;end cmd&gt; +
&lt;stream header&gt; + &lt;sequence of commands&gt; + &lt;end cmd&gt; + EOF

The new format (if the two new flags are used) is this one:
&lt;stream header&gt; + &lt;sequence of commands&gt; +
                  &lt;sequence of commands&gt; + &lt;end cmd&gt;

Note that the currently existing receivers treat &lt;end cmd&gt; only as
an indication that a new &lt;stream header&gt; is following. This means,
you can just skip the sequence &lt;end cmd&gt; &lt;stream header&gt; without
loosing compatibility. As long as an EOF is following, the currently
existing receivers handle the new format (if the two new flags are
used) exactly as the old one.

So what is the benefit of this change? The goal is to be able to use
a single stream (one TCP connection) to multiplex a request/response
handshake plus Btrfs send streams, all in the same stream. In this
case you cannot evaluate an EOF condition as an end of the Btrfs send
stream. You need something else, and the &lt;end cmd&gt; is just perfect
for this purpose.

The summary is:
The format change is driven by the need to send several Btrfs send
streams over a single TCP connections, with the ability for a repeated
request/response handshake in the middle. And this format change does
not break any existing tool, it is completely compatible.

You could compare the old behaviour of the Btrfs send stream to the
one of ftp where you need a seperate request/response channel and
newly opened data transfer channels for each file, while the new
behaviour is more like http using a single stream for everything.

Signed-off-by: Stefan Behrens &lt;sbehrens@giantdisaster.de&gt;
Signed-off-by: Josef Bacik &lt;jbacik@fusionio.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'kvm-3.10-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm</title>
<updated>2013-05-05T21:47:31+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2013-05-05T21:47:31+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=01227a889ed56ae53aeebb9f93be9d54dd8b2de8'/>
<id>01227a889ed56ae53aeebb9f93be9d54dd8b2de8</id>
<content type='text'>
Pull kvm updates from Gleb Natapov:
 "Highlights of the updates are:

  general:
   - new emulated device API
   - legacy device assignment is now optional
   - irqfd interface is more generic and can be shared between arches

  x86:
   - VMCS shadow support and other nested VMX improvements
   - APIC virtualization and Posted Interrupt hardware support
   - Optimize mmio spte zapping

  ppc:
    - BookE: in-kernel MPIC emulation with irqfd support
    - Book3S: in-kernel XICS emulation (incomplete)
    - Book3S: HV: migration fixes
    - BookE: more debug support preparation
    - BookE: e6500 support

  ARM:
   - reworking of Hyp idmaps

  s390:
   - ioeventfd for virtio-ccw

  And many other bug fixes, cleanups and improvements"

* tag 'kvm-3.10-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (204 commits)
  kvm: Add compat_ioctl for device control API
  KVM: x86: Account for failing enable_irq_window for NMI window request
  KVM: PPC: Book3S: Add API for in-kernel XICS emulation
  kvm/ppc/mpic: fix missing unlock in set_base_addr()
  kvm/ppc: Hold srcu lock when calling kvm_io_bus_read/write
  kvm/ppc/mpic: remove users
  kvm/ppc/mpic: fix mmio region lists when multiple guests used
  kvm/ppc/mpic: remove default routes from documentation
  kvm: KVM_CAP_IOMMU only available with device assignment
  ARM: KVM: iterate over all CPUs for CPU compatibility check
  KVM: ARM: Fix spelling in error message
  ARM: KVM: define KVM_ARM_MAX_VCPUS unconditionally
  KVM: ARM: Fix API documentation for ONE_REG encoding
  ARM: KVM: promote vfp_host pointer to generic host cpu context
  ARM: KVM: add architecture specific hook for capabilities
  ARM: KVM: perform HYP initilization for hotplugged CPUs
  ARM: KVM: switch to a dual-step HYP init code
  ARM: KVM: rework HYP page table freeing
  ARM: KVM: enforce maximum size for identity mapped code
  ARM: KVM: move to a KVM provided HYP idmap
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull kvm updates from Gleb Natapov:
 "Highlights of the updates are:

  general:
   - new emulated device API
   - legacy device assignment is now optional
   - irqfd interface is more generic and can be shared between arches

  x86:
   - VMCS shadow support and other nested VMX improvements
   - APIC virtualization and Posted Interrupt hardware support
   - Optimize mmio spte zapping

  ppc:
    - BookE: in-kernel MPIC emulation with irqfd support
    - Book3S: in-kernel XICS emulation (incomplete)
    - Book3S: HV: migration fixes
    - BookE: more debug support preparation
    - BookE: e6500 support

  ARM:
   - reworking of Hyp idmaps

  s390:
   - ioeventfd for virtio-ccw

  And many other bug fixes, cleanups and improvements"

* tag 'kvm-3.10-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (204 commits)
  kvm: Add compat_ioctl for device control API
  KVM: x86: Account for failing enable_irq_window for NMI window request
  KVM: PPC: Book3S: Add API for in-kernel XICS emulation
  kvm/ppc/mpic: fix missing unlock in set_base_addr()
  kvm/ppc: Hold srcu lock when calling kvm_io_bus_read/write
  kvm/ppc/mpic: remove users
  kvm/ppc/mpic: fix mmio region lists when multiple guests used
  kvm/ppc/mpic: remove default routes from documentation
  kvm: KVM_CAP_IOMMU only available with device assignment
  ARM: KVM: iterate over all CPUs for CPU compatibility check
  KVM: ARM: Fix spelling in error message
  ARM: KVM: define KVM_ARM_MAX_VCPUS unconditionally
  KVM: ARM: Fix API documentation for ONE_REG encoding
  ARM: KVM: promote vfp_host pointer to generic host cpu context
  ARM: KVM: add architecture specific hook for capabilities
  ARM: KVM: perform HYP initilization for hotplugged CPUs
  ARM: KVM: switch to a dual-step HYP init code
  ARM: KVM: rework HYP page table freeing
  ARM: KVM: enforce maximum size for identity mapped code
  ARM: KVM: move to a KVM provided HYP idmap
  ...
</pre>
</div>
</content>
</entry>
</feed>
