<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/include/linux/acct.h, branch v2.6.38.5</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>sysctl extern cleanup: acct</title>
<updated>2010-03-12T23:53:10+00:00</updated>
<author>
<name>Dave Young</name>
<email>hidave.darkstar@gmail.com</email>
</author>
<published>2010-03-10T23:24:08+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=c55b7c3e82d0ad58f35a0785faaaf2f70b9b6cd3'/>
<id>c55b7c3e82d0ad58f35a0785faaaf2f70b9b6cd3</id>
<content type='text'>
Extern declarations in sysctl.c should be moved to their own header file,
and then include them in relavant .c files.

Move acct_parm extern declaration to linux/acct.h

Signed-off-by: Dave Young &lt;hidave.darkstar@gmail.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Extern declarations in sysctl.c should be moved to their own header file,
and then include them in relavant .c files.

Move acct_parm extern declaration to linux/acct.h

Signed-off-by: Dave Young &lt;hidave.darkstar@gmail.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>copy_signal() cleanup: kill taskstats_tgid_init() and acct_init_pacct()</title>
<updated>2010-03-12T23:52:39+00:00</updated>
<author>
<name>Veaceslav Falico</name>
<email>vfalico@redhat.com</email>
</author>
<published>2010-03-10T23:23:02+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=4dd66e69d472f0ba5355a2529364d0db9a18a02b'/>
<id>4dd66e69d472f0ba5355a2529364d0db9a18a02b</id>
<content type='text'>
Kill unused functions taskstats_tgid_init() and acct_init_pacct() because
we don't use them anywhere after using kmem_cache_zalloc() in
copy_signal().

Signed-off-by: Veaceslav Falico &lt;vfalico@redhat.com&gt;
Cc: Roland McGrath &lt;roland@redhat.com&gt;
Cc: Oleg Nesterov &lt;oleg@redhat.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Kill unused functions taskstats_tgid_init() and acct_init_pacct() because
we don't use them anywhere after using kmem_cache_zalloc() in
copy_signal().

Signed-off-by: Veaceslav Falico &lt;vfalico@redhat.com&gt;
Cc: Roland McGrath &lt;roland@redhat.com&gt;
Cc: Oleg Nesterov &lt;oleg@redhat.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>bsdacct: switch from global bsd_acct_struct instance to per-pidns one</title>
<updated>2008-07-25T17:53:47+00:00</updated>
<author>
<name>Pavel Emelyanov</name>
<email>xemul@openvz.org</email>
</author>
<published>2008-07-25T08:48:47+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=0b6b030fc30d169bb406b34b4fc60d99dde4a9c6'/>
<id>0b6b030fc30d169bb406b34b4fc60d99dde4a9c6</id>
<content type='text'>
Allocate the structure on the first call to sys_acct().  After this each
namespace, that ordered the accounting, will live with this structure till
its own death.

Two notes
- routines, that close the accounting on fs umount time use
  the init_pid_ns's acct by now;
- accounting routine accounts to dying task's namespace
  (also by now).

Signed-off-by: Pavel Emelyanov &lt;xemul@openvz.org&gt;
Cc: Balbir Singh &lt;balbir@in.ibm.com&gt;
Cc: "Eric W. Biederman" &lt;ebiederm@xmission.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Allocate the structure on the first call to sys_acct().  After this each
namespace, that ordered the accounting, will live with this structure till
its own death.

Two notes
- routines, that close the accounting on fs umount time use
  the init_pid_ns's acct by now;
- accounting routine accounts to dying task's namespace
  (also by now).

Signed-off-by: Pavel Emelyanov &lt;xemul@openvz.org&gt;
Cc: Balbir Singh &lt;balbir@in.ibm.com&gt;
Cc: "Eric W. Biederman" &lt;ebiederm@xmission.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>system timer: fix crash in &lt;100Hz system timer</title>
<updated>2008-02-06T18:41:10+00:00</updated>
<author>
<name>David Fries</name>
<email>david@fries.net</email>
</author>
<published>2008-02-06T09:38:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=6ffc787a4492ac627315aaeafdfdc0a5c3028582'/>
<id>6ffc787a4492ac627315aaeafdfdc0a5c3028582</id>
<content type='text'>
The kernel has a divide by zero crash when trying to run the system timer
less than 100Hz.  The problem is x/(HZ/USER_HZ) and related.  Now
x*(USER_HZ/HZ) will be used if HZ&lt;USER_HZ.

I'm running the Linux kernel under qemu and went to run a slower system
timer to take less CPU (and battery) on the host.  I found that the kernel
paniced under emulation because of a divide by zero in three places.  Here
is the patch.  The base git was updated today 01-05-2008.  I went for a
20Hz system time by adding config HZ_20 etc to kernel/Kconfig.hz.  With
this patch I verified the system timer by looking at /proc/interrupts.

[akpm@linux-foundation.org: partially clean up the macro maze]
Signed-off-by: David Fries &lt;david@fries.net&gt;
Cc: "H. Peter Anvin" &lt;hpa@zytor.com&gt;
Cc: Ingo Molnar &lt;mingo@elte.hu&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The kernel has a divide by zero crash when trying to run the system timer
less than 100Hz.  The problem is x/(HZ/USER_HZ) and related.  Now
x*(USER_HZ/HZ) will be used if HZ&lt;USER_HZ.

I'm running the Linux kernel under qemu and went to run a slower system
timer to take less CPU (and battery) on the host.  I found that the kernel
paniced under emulation because of a divide by zero in three places.  Here
is the patch.  The base git was updated today 01-05-2008.  I went for a
20Hz system time by adding config HZ_20 etc to kernel/Kconfig.hz.  With
this patch I verified the system timer by looking at /proc/interrupts.

[akpm@linux-foundation.org: partially clean up the macro maze]
Signed-off-by: David Fries &lt;david@fries.net&gt;
Cc: "H. Peter Anvin" &lt;hpa@zytor.com&gt;
Cc: Ingo Molnar &lt;mingo@elte.hu&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>[PATCH] severing module.h-&gt;sched.h</title>
<updated>2006-12-04T07:00:22+00:00</updated>
<author>
<name>Al Viro</name>
<email>viro@zeniv.linux.org.uk</email>
</author>
<published>2006-10-18T05:47:25+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=f6a570333e554b48ad589e7137c77c57809eee81'/>
<id>f6a570333e554b48ad589e7137c77c57809eee81</id>
<content type='text'>
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>
Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>[PATCH] csa: convert CONFIG tag for extended accounting routines</title>
<updated>2006-10-01T07:39:29+00:00</updated>
<author>
<name>Jay Lan</name>
<email>jlan@engr.sgi.com</email>
</author>
<published>2006-10-01T06:28:59+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=8f0ab5147951267134612570604cf8341901a80c'/>
<id>8f0ab5147951267134612570604cf8341901a80c</id>
<content type='text'>
There were a few accounting data/macros that are used in CSA but are #ifdef'ed
inside CONFIG_BSD_PROCESS_ACCT.  This patch is to change those ifdef's from
CONFIG_BSD_PROCESS_ACCT to CONFIG_TASK_XACCT.  A few defines are moved from
kernel/acct.c and include/linux/acct.h to kernel/tsacct.c and
include/linux/tsacct_kern.h.

Signed-off-by: Jay Lan &lt;jlan@sgi.com&gt;
Cc: Shailabh Nagar &lt;nagar@watson.ibm.com&gt;
Cc: Balbir Singh &lt;balbir@in.ibm.com&gt;
Cc: Jes Sorensen &lt;jes@sgi.com&gt;
Cc: Chris Sturtivant &lt;csturtiv@sgi.com&gt;
Cc: Tony Ernst &lt;tee@sgi.com&gt;
Cc: Guillaume Thouvenin &lt;guillaume.thouvenin@bull.net&gt;
Signed-off-by: Andrew Morton &lt;akpm@osdl.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@osdl.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
There were a few accounting data/macros that are used in CSA but are #ifdef'ed
inside CONFIG_BSD_PROCESS_ACCT.  This patch is to change those ifdef's from
CONFIG_BSD_PROCESS_ACCT to CONFIG_TASK_XACCT.  A few defines are moved from
kernel/acct.c and include/linux/acct.h to kernel/tsacct.c and
include/linux/tsacct_kern.h.

Signed-off-by: Jay Lan &lt;jlan@sgi.com&gt;
Cc: Shailabh Nagar &lt;nagar@watson.ibm.com&gt;
Cc: Balbir Singh &lt;balbir@in.ibm.com&gt;
Cc: Jes Sorensen &lt;jes@sgi.com&gt;
Cc: Chris Sturtivant &lt;csturtiv@sgi.com&gt;
Cc: Tony Ernst &lt;tee@sgi.com&gt;
Cc: Guillaume Thouvenin &lt;guillaume.thouvenin@bull.net&gt;
Signed-off-by: Andrew Morton &lt;akpm@osdl.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@osdl.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>[PATCH] pacct: avoidance to refer the last thread as a representation of the process</title>
<updated>2006-06-25T17:01:25+00:00</updated>
<author>
<name>KaiGai Kohei</name>
<email>kaigai@ak.jp.nec.com</email>
</author>
<published>2006-06-25T12:49:25+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=f6ec29a42d7ac3b309a9cef179b686d23986ab98'/>
<id>f6ec29a42d7ac3b309a9cef179b686d23986ab98</id>
<content type='text'>
When pacct facility generate an 'ac_flag' field in accounting record, it
refers a task_struct of the thread which died last in the process.  But any
other task_structs are ignored.

Therefore, pacct facility drops ASU flag even if root-privilege operations are
used by any other threads except the last one.  In addition, AFORK flag is
always set when the thread of group-leader didn't die last, although this
process has called execve() after fork().

We have a same matter in ac_exitcode.  The recorded ac_exitcode is an exit
code of the last thread in the process.  There is a possibility this exitcode
is not the group leader's one.
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
When pacct facility generate an 'ac_flag' field in accounting record, it
refers a task_struct of the thread which died last in the process.  But any
other task_structs are ignored.

Therefore, pacct facility drops ASU flag even if root-privilege operations are
used by any other threads except the last one.  In addition, AFORK flag is
always set when the thread of group-leader didn't die last, although this
process has called execve() after fork().

We have a same matter in ac_exitcode.  The recorded ac_exitcode is an exit
code of the last thread in the process.  There is a possibility this exitcode
is not the group leader's one.
</pre>
</div>
</content>
</entry>
<entry>
<title>[PATCH] pacct: add pacct_struct to fix some pacct bugs.</title>
<updated>2006-06-25T17:01:25+00:00</updated>
<author>
<name>KaiGai Kohei</name>
<email>kaigai@ak.jp.nec.com</email>
</author>
<published>2006-06-25T12:49:24+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=0e4648141af02331f21aabcd34940c70f09a2d04'/>
<id>0e4648141af02331f21aabcd34940c70f09a2d04</id>
<content type='text'>
The pacct facility need an i/o operation when an accounting record is
generated.  There is a possibility to wake OOM killer up.  If OOM killer is
activated, it kills some processes to make them release process memory
regions.

But acct_process() is called in the killed processes context before calling
exit_mm(), so those processes cannot release own memory.  In the results, any
processes stop in this point and it finally cause a system stall.
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The pacct facility need an i/o operation when an accounting record is
generated.  There is a possibility to wake OOM killer up.  If OOM killer is
activated, it kills some processes to make them release process memory
regions.

But acct_process() is called in the killed processes context before calling
exit_mm(), so those processes cannot release own memory.  In the results, any
processes stop in this point and it finally cause a system stall.
</pre>
</div>
</content>
</entry>
<entry>
<title>Don't include linux/config.h from anywhere else in include/</title>
<updated>2006-04-26T11:56:16+00:00</updated>
<author>
<name>David Woodhouse</name>
<email>dwmw2@infradead.org</email>
</author>
<published>2006-04-26T11:56:16+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=62c4f0a2d5a188f73a94f2cb8ea0dba3e7cf0a7f'/>
<id>62c4f0a2d5a188f73a94f2cb8ea0dba3e7cf0a7f</id>
<content type='text'>
Signed-off-by: David Woodhouse &lt;dwmw2@infradead.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Signed-off-by: David Woodhouse &lt;dwmw2@infradead.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Include &lt;linux/jiffies.h&gt; from linux/acct.h only in kernel-private part.</title>
<updated>2006-04-25T12:57:44+00:00</updated>
<author>
<name>David Woodhouse</name>
<email>dwmw2@infradead.org</email>
</author>
<published>2006-04-25T12:57:44+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=a1ff0eafce81a58861534926722a70f211b04faa'/>
<id>a1ff0eafce81a58861534926722a70f211b04faa</id>
<content type='text'>
Signed-off-by: David Woodhouse &lt;dwmw2@infradead.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Signed-off-by: David Woodhouse &lt;dwmw2@infradead.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
