linux-toradex.git/arch/s390/appldata, branch v3.11.2

s390/appldata_net_sum: do not use static data

2013-06-26T19:10:31+00:00

Using static data for fields which are accessed by HW will fail if
the driver is build as a module (since this would be vmalloc'ed
memory). This Bug was revealed via
"s390: remove virt_to_phys implementation" - the old virt_to_phys
implementation would have translated the address but it was not
guaranteed that the memory was contiguous.

Signed-off-by: Sebastian Ott 
Reviewed-by: Gerald Schaefer 
Signed-off-by: Martin Schwidefsky

s390/appldata_mem: do not use static data

2013-06-26T19:10:30+00:00

Using static data for fields which are accessed by HW will fail if
the driver is build as a module (since this would be vmalloc'ed
memory). This Bug was revealed via
"s390: remove virt_to_phys implementation" - the old virt_to_phys
implementation would have translated the address but it was not
guaranteed that the memory was contiguous.

Signed-off-by: Sebastian Ott 
Reviewed-by: Gerald Schaefer 
Signed-off-by: Martin Schwidefsky

arch: s390: appldata: using strncpy() and strnlen() instead of sprintf()

2013-05-28T08:35:28+00:00

'buf[2]' is 2 bytes length, and sprintf() will append '\0' at the end
of string "?\n", so original implementation is memory overflow.

Need use strncpy() and strnlen() instead of sprintf().

Signed-off-by: Chen Gang 
Signed-off-by: Gerald Schaefer 
Signed-off-by: Martin Schwidefsky

s390/time: rename tod clock access functions

2013-02-14T14:55:10+00:00

Fix name clash with some common code device drivers and add "tod"
to all tod clock access function names.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

s390/vtimer: rework virtual timer interface

2012-07-20T09:15:08+00:00

The current virtual timer interface is inherently per-cpu and hard to
use. The sole user of the interface is appldata which uses it to execute
a function after a specific amount of cputime has been used over all cpus.

Rework the virtual timer interface to hook into the cputime accounting.
This makes the interface independent from the CPU timer interrupts, and
makes the virtual timers global as opposed to per-cpu.
Overall the code is greatly simplified. The downside is that the accuracy
is not as good as the original implementation, but it is still good enough
for appldata.

Reviewed-by: Jan Glauber 
Reviewed-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

s390/comments: unify copyright messages and remove file names

2012-07-20T09:15:04+00:00

Remove the file name from the comment at top of many files. In most
cases the file name was wrong anyway, so it's rather pointless.

Also unify the IBM copyright statement. We did have a lot of sightly
different statements and wanted to change them one after another
whenever a file gets touched. However that never happened. Instead
people start to take the old/"wrong" statements to use as a template
for new files.
So unify all of them in one go.

Signed-off-by: Heiko Carstens

sched/accounting: Change cpustat fields to an array

2011-12-06T08:06:38+00:00

This patch changes fields in cpustat from a structure, to an
u64 array. Math gets easier, and the code is more flexible.

Signed-off-by: Glauber Costa 
Reviewed-by: KAMEZAWA Hiroyuki 
Cc: Linus Torvalds 
Cc: Andrew Morton 
Cc: Paul Tuner 
Signed-off-by: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1322498719-2255-2-git-send-email-glommer@parallels.com
Signed-off-by: Ingo Molnar

[S390] mm: add ZONE_DMA to 31-bit config again

2011-05-26T07:48:25+00:00

Add ZONE_DMA to 31-bit config again. The performance gain is minimal
and hardly anybody cares anymore about a 31-bit kernel.
So add ZONE_DMA again to help with SLAB_CACHE_DMA removal for
!CONFIG_ZONE_DMA configurations.

Acked-by: David Rientjes 
Signed-off-by: Heiko Carstens

[S390] get rid of unused variables

2011-05-23T08:24:28+00:00

Remove trivially unused variables as detected with -Wunused-but-set-variable.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

[S390] appldata: fix dev_get_stats 64 bit conversion

2010-08-13T08:06:55+00:00

Fix this warning:

arch/s390/appldata/appldata_net_sum.c: In function 'appldata_get_net_sum_data':
arch/s390/appldata/appldata_net_sum.c:89: warning: initialization from incompatible pointer type

which was introduced with be1f3c2c027cc5ad735df6a45a542ed1db7ec48b
"net: Enable 64-bit net device statistics on 32-bit architectures"

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky