linux-toradex.git/kernel/acct.c, branch v2.6.19.3

[PATCH] csa: convert CONFIG tag for extended accounting routines

2006-10-01T07:39:29+00:00

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 
Cc: Shailabh Nagar 
Cc: Balbir Singh 
Cc: Jes Sorensen 
Cc: Chris Sturtivant 
Cc: Tony Ernst 
Cc: Guillaume Thouvenin 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] audit/accounting: tty locking

2006-09-29T16:18:25+00:00

Add tty locking around the audit and accounting code.

The whole current->signal-> locking is all deeply strange but it's for
someone else to sort out.  Add rather than replace the lock for acct.c

Signed-off-by: Alan Cox 
Acked-by: Arjan van de Ven 
Cc: Al Viro 
Cc: Oleg Nesterov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Fix sighand->siglock usage in kernel/acct.c

2006-07-15T04:53:54+00:00

IRQs must be disabled before taking ->siglock.

Noticed by lockdep.

Signed-off-by: OGAWA Hirofumi 
Cc: Arjan van de Ven 
Cc: Ingo Molnar 
Cc: "Eric W. Biederman" 
Cc: Oleg Nesterov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Remove obsolete #include

2006-06-30T17:25:36+00:00

Signed-off-by: Jörn Engel 
Signed-off-by: Adrian Bunk

[PATCH] fix kernel-doc in kernel/ dir

2006-06-28T00:32:39+00:00

Fix kernel-doc parameters in kernel/

Warning(/var/linsrc/linux-2617-g9//kernel/auditsc.c:1376): No description found for parameter 'u_abs_timeout'
Warning(/var/linsrc/linux-2617-g9//kernel/auditsc.c:1420): No description found for parameter 'u_msg_prio'
Warning(/var/linsrc/linux-2617-g9//kernel/auditsc.c:1420): No description found for parameter 'u_abs_timeout'
Warning(/var/linsrc/linux-2617-g9//kernel/acct.c:526): No description found for parameter 'pacct'

Signed-off-by: Randy Dunlap 
Cc: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] kernel/acct: fix function definition

2006-06-28T00:32:35+00:00

kernel/acct.c:579:19: warning: non-ANSI function declaration of function 'acct_process'

Signed-off-by: Randy Dunlap 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] pacct: none-delayed process accounting accumulation

2006-06-25T17:01:25+00:00

In current 2.6.17 implementation, signal_struct refered from task_struct is
used for per-process data structure.  The pacct facility also uses it as a
per-process data structure to store stime, utime, minflt, majflt.  But those
members are saved in __exit_signal().  It's too late.

For example, if some threads exits at same time, pacct facility has a
possibility to drop accountings for a part of those threads.  (see, the
following 'The results of original 2.6.17 kernel') I think accounting
information should be completely collected into the per-process data structure
before writing out an accounting record.

This patch fixes this matter.  Accumulation of stime, utime, minflt and majflt
are done before generating accounting record.

[mingo@elte.hu: fix acct_collect() siglock bug found by lockdep]
Signed-off-by: KaiGai Kohei 
Signed-off-by: Ingo Molnar 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] pacct: avoidance to refer the last thread as a representation of the process

2006-06-25T17:01:25+00:00

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.

[PATCH] pacct: add pacct_struct to fix some pacct bugs.

2006-06-25T17:01:25+00:00

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.

[PATCH] Remove unecessary NULL check in kernel/acct.c

2006-06-25T17:01:09+00:00

copy_process() appears to be the only caller of acct_clear_integrals() and
does not pass in NULL task pointers.  Remove the unecessary check.

Signed-off-by: Matt Helsley 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds