linux-stable.git/arch/sparc/kernel/process_32.c, branch linux-3.7.y

vfs: define struct filename and have getname() return it

2012-10-13T00:14:55+00:00

getname() is intended to copy pathname strings from userspace into a
kernel buffer. The result is just a string in kernel space. It would
however be quite helpful to be able to attach some ancillary info to
the string.

For instance, we could attach some audit-related info to reduce the
amount of audit-related processing needed. When auditing is enabled,
we could also call getname() on the string more than once and not
need to recopy it from userspace.

This patchset converts the getname()/putname() interfaces to return
a struct instead of a string. For now, the struct just tracks the
string in kernel space and the original userland pointer for it.

Later, we'll add other information to the struct as it becomes
convenient.

Signed-off-by: Jeff Layton 
Signed-off-by: Al Viro

sparc32, copy_thread: Clear TIF_USEDFPU flag of created task instead of current

2012-07-26T23:49:40+00:00

FPU state is saved into task_struct of created task. Current task continues
use of the state, so it needs TIF_USEDFPU flag is not cleared.

Created task receives fresh FPU and cleared TIF_USEFPU flag is required for it.

Signed-off-by: Kirill Tkhai 
Signed-off-by: David S. Miller

sparc32: refactor cpu_idle()

2012-05-28T06:52:52+00:00

With the removal of sun4c we can use the same cpu_idle()
implementation on UP and SMP.
This also fix it so we use the same version independent on LEON
enabled or not.

V2: Fixed whitespace issue pointed out by Josip Rodin.

Signed-off-by: Sam Ravnborg 
Cc: Josip Rodin 
Cc: Daniel Hellstrom 
Cc: Konrad Eisele

sparc32: drop unused code in process_32

2012-05-12T20:44:22+00:00

It is commented out using #ifdef 0 / #endif,
and has been so for a long time.

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc32: drop btfixup for check_pgt_cache

2012-05-12T18:32:04+00:00

It is a noop for srmmu - so use a define as sparc64 does.
And drop all sparc callers - no need to confuse our-self
be calling a noop function.

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc32: remove all uses of ARCH_SUN4C

2012-05-12T02:27:48+00:00

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc32: drop sun4c support

2012-05-12T02:27:44+00:00

Machines with sun4c support are very rare these days, and noone
is using them for any practical purposes.
The sun4c support has been know broken for quite some time too.

So rather than trying to keep it up-to-date, lets get rid of it.
This allows us to do some very welcome cleanup of sparc32 support.

Updated the former sun4c specifc nmi (which was also used
for sun4m UP) to be a generic UP NMI.

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

Disintegrate asm/system.h for Sparc

2012-03-28T17:30:03+00:00

Disintegrate asm/system.h for Sparc.

Signed-off-by: David Howells 
cc: sparclinux@vger.kernel.org

sched/rt: Use schedule_preempt_disabled()

2012-03-01T09:28:03+00:00

Coccinelle based conversion.

Signed-off-by: Thomas Gleixner 
Acked-by: Peter Zijlstra 
Link: http://lkml.kernel.org/n/tip-24swm5zut3h9c4a6s46x8rws@git.kernel.org
Signed-off-by: Ingo Molnar

sparc, exec: remove redundant addr_limit assignment

2011-09-21T06:12:42+00:00

The address limit is already set in flush_old_exec() so this assignment of
USER_DS is redundant.

Signed-off-by: Mathias Krause 
Cc: David Miller 
Signed-off-by: Andrew Morton 
Signed-off-by: David S. Miller