linux-toradex.git/kernel/user.c, branch v2.6.25-rc2

sched: rt-group: make rt groups scheduling configurable

2008-02-13T14:45:40+00:00

Make the rt group scheduler compile time configurable.
Keep it experimental for now.

Signed-off-by: Peter Zijlstra 
Signed-off-by: Ingo Molnar

sched: rt-group: interface

2008-02-13T14:45:39+00:00

Change the rt_ratio interface to rt_runtime_us, to match rt_period_us.
This avoids picking a granularity for the ratio.

Extend the /sys/kernel/uids// interface to allow setting
the group's rt_runtime.

Signed-off-by: Peter Zijlstra 
Signed-off-by: Ingo Molnar

namespaces: cleanup the code managed with the USER_NS option

2008-02-08T17:22:23+00:00

Make the user_namespace.o compilation depend on this option and move the
init_user_ns into user.c file to make the kernel compile and work without the
namespaces support.  This make the user namespace code be organized similar to
other namespaces'.

Also mask the USER_NS option as "depend on NAMESPACES".

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Pavel Emelyanov 
Acked-by: Serge Hallyn 
Cc: Cedric Le Goater 
Cc: "Eric W. Biederman" 
Cc: Herbert Poetzl 
Cc: Kirill Korotaev 
Cc: Sukadev Bhattiprolu 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

uids: merge multiple error paths in alloc_uid() into one

2008-01-25T20:08:26+00:00

There are already 4 error paths in alloc_uid() that do incremental rollbacks.
I think it's time to merge them.  This costs us 8 lines of code :)

Maybe it would be better to merge this patch with the previous one, but I
remember that some time ago I sent a similar patch (fixing the error path and
cleaning it), but I was told to make two patches in such cases.

Signed-off-by: Pavel Emelyanov 
Acked-by: Dhaval Giani 
Signed-off-by: Andrew Morton 
Signed-off-by: Ingo Molnar

Kobject: convert kernel/user.c to use kobject_init/add_ng()

2008-01-25T04:40:31+00:00

This converts the code to use the new kobject functions, cleaning up the
logic in doing so.

Cc: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman

kobject: convert kernel_kset to be a kobject

2008-01-25T04:40:24+00:00

kernel_kset does not need to be a kset, but a much simpler kobject now
that we have kobj_attributes.

We also rename kernel_kset to kernel_kobj to catch all users of this
symbol with a build error instead of an easy-to-ignore build warning.

Cc: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman

fix struct user_info export's sysfs interaction

2008-01-25T04:40:18+00:00

Clean up the use of ksets and kobjects. Kobjects are instances of
objects (like struct user_info), ksets are collections of objects of a
similar type (like the uids directory containing the user_info directories).
So, use kobjects for the user_info directories, and a kset for the "uids"
directory.

On object cleanup, the final kobject_put() was missing.

Cc: Dhaval Giani 
Cc: Srivatsa Vaddagiri 
Signed-off-by: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman

kset: convert kernel_subsys to use kset_create

2008-01-25T04:40:14+00:00

Dynamically create the kset instead of declaring it statically.  We also
rename kernel_subsys to kernel_kset to catch all users of this symbol
with a build error instead of an easy-to-ignore build warning.

Cc: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman

sched: don't forget to unlock uids_mutex on error paths

2007-11-26T20:21:49+00:00

The commit

 commit 5cb350baf580017da38199625b7365b1763d7180
 Author: Dhaval Giani 
 Date:   Mon Oct 15 17:00:14 2007 +0200

    sched: group scheduling, sysfs tunables

introduced the uids_mutex and the helpers to lock/unlock it.
Unfortunately, the error paths of alloc_uid() were not patched
to unlock it.

Signed-off-by: Pavel Emelyanov 
Acked-by: Dhaval Giani 
Signed-off-by: Ingo Molnar

sched: make cpu_shares_{show,store}() static

2007-10-24T16:23:50+00:00

cpu_shares_{show,store}() can become static.

Signed-off-by: Adrian Bunk 
Signed-off-by: Ingo Molnar