linux-toradex.git/include/linux/cn_proc.h, branch tegra-9.12.15

proc connector: add event for process becoming session leader

2009-09-23T14:39:29+00:00

The act of a process becoming a session leader is a useful signal to a
supervising init daemon such as Upstart.

While a daemon will normally do this as part of the process of becoming a
daemon, it is rare for its children to do so.  When the children do, it is
nearly always a sign that the child should be considered detached from the
parent and not supervised along with it.

The poster-child example is OpenSSH; the per-login children call setsid()
so that they may control the pty connected to them.  If the primary daemon
dies or is restarted, we do not want to consider the per-login children
and want to respawn the primary daemon without killing the children.

This patch adds a new PROC_SID_EVENT and associated structure to the
proc_event event_data union, it arranges for this to be emitted when the
special PIDTYPE_SID pid is set.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Scott James Remnant 
Acked-by: Matt Helsley 
Cc: Oleg Nesterov 
Cc: Evgeniy Polyakov 
Acked-by: "David S. Miller" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

make exported headers use strict posix types

2009-03-26T17:14:14+00:00

A number of standard posix types are used in exported headers, which
is not allowed if __STRICT_KERNEL_NAMES is defined. In order to
get rid of the non-__STRICT_KERNEL_NAMES part and to make sane headers
the default, we have to change them all to safe types.

There are also still some leftovers in reiserfs_fs.h, elfcore.h
and coda.h, but these files have not compiled in user space for
a long time.

This leaves out the various integer types ({u_,u,}int{8,16,32,64}_t),
which we take care of separately.

Signed-off-by: Arnd Bergmann 
Acked-by: Mauro Carvalho Chehab 
Cc: David Airlie 
Cc: Arnaldo Carvalho de Melo 
Cc: YOSHIFUJI Hideaki 
Cc: netdev@vger.kernel.org
Cc: linux-ppp@vger.kernel.org
Cc: Jaroslav Kysela 
Cc: Takashi Iwai 
Cc: David Woodhouse 
Signed-off-by: H. Peter Anvin 
Signed-off-by: Ingo Molnar

[PATCH] Process Events: Fix biarch compatibility issue. use __u64 timestamp

2006-07-31T20:28:36+00:00

Events sent by Process Events Connector from a 64-bit kernel are not binary
compatible with a 32-bit userspace program because the "timestamp" field
(struct timespec) is not arch independent.  This affects the fields that
follow "timestamp" as they will be be off by 8 bytes.

This is a problem for 32-bit userspace programs running with 64-bit kernels
on ppc64, s390, x86-64..  any "biarch" system.

Matt had submitted a different solution to lkml as an RFC earlier.  We have
since switched to a solution recommended by Evgeniy Polyakov.

This patch fixes the problem by changing the timestamp to be a __u64, which
stores the number of nanoseconds.

Tested on a x86_64 system with both 32 bit application and 64 bit
application and on a i386 system.

Signed-off-by: Chandra Seetharaman 
Signed-off-by: Matt Helsley 
Cc: Evgeniy Polyakov 
Cc: Guillaume Thouvenin 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Process Events: License Change

2006-06-23T14:43:06+00:00

Change the license on the process event structure passed between kernel and
userspace.

Signed-off-by: Matt Helsley 
Acked-by: Guillaume Thouvenin 
Acked-by: Nguyen Anh Quynh 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Process Events - Header Cleanup

2006-06-23T14:43:06+00:00

Move connector header include to precisely where it's needed.

Remove unused time.h header file as well.  This was leftover from previous
iterations of the process events patches.

Signed-off-by: Matt Helsley 
Cc: Guillaume Thouvenin 
Cc: Nguyen Anh Quynh 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Add timestamp field to process events

2005-12-12T16:57:42+00:00

This adds a timestamp field to the events sent via the process event
connector.  The timestamp allows listeners to accurately account the
duration(s) between a process' events and offers strong means with which
to determine the order of events with respect to a given task while also
avoiding the addition of per-task data.

This alters the size and layout of the event structure and hence would
break compatibility if process events connector as it stands in 2.6.15-rc2
were released as a mainline kernel.

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

[PATCH] process events connector: uid_t gid_t size issues

2005-11-30T03:47:03+00:00

The uid_t and gid_t fields appear to present a 32/64-bit userspace/kernel
problem for some archs.

This patch addresses the problem by fixing the size to the largest size for
uid_t/gid_t used in the kernel.  This preserves the total size of the event
structure while ensuring that the layouts of the ID change event match in
32 and 64-bit kernels and applications.

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

[PATCH] Process Events Connector

2005-11-07T15:53:35+00:00

This patch adds a connector that reports fork, exec, id change, and exit
events for all processes to userspace.  It replaces the fork_advisor patch
that ELSA is currently using.  Applications that may find these events
useful include accounting/auditing (e.g.  ELSA), system activity monitoring
(e.g.  top), security, and resource management (e.g.  CKRM).

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