kernel.git/arch/s390/include, branch linux-2.6.37.y

s390: remove task_show_regs

2011-02-24T22:54:30Z

commit 261cd298a8c363d7985e3482946edb4bfedacf98 upstream. task_show_regs used to be a debugging aid in the early bringup days of Linux on s390. /proc//status is a world readable file, it is not a good idea to show the registers of a process. The only correct fix is to remove task_show_regs. Reported-by: Al Viro Signed-off-by: Martin Schwidefsky Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

[S390] mm: add devmem_is_allowed() for STRICT_DEVMEM checking

2010-11-10T09:05:54Z

Provide the devmem_is_allowed() routine to restrict access to kernel memory from userspace. Set the CONFIG_STRICT_DEVMEM config option to switch on checking. Signed-off-by: Hendrik Brueckner Signed-off-by: Martin Schwidefsky

[S390] dasd: provide a Sense Path Group ID ioctl

2010-10-29T14:50:50Z

The BIODASDSNID ioctl executes a 'Sense Path Group ID' command on a DASD ECKD device. The returned path group data allows user space programs to determine path state and path group ID of the channel paths to the device. Signed-off-by: Stefan Weinhuber Signed-off-by: Martin Schwidefsky

taskstats: use real microsecond granularity for CPU times

2010-10-28T01:03:17Z

The taskstats interface uses microsecond granularity for the user and system time values. The conversion from cputime to the taskstats values uses the cputime_to_msecs primitive which effectively limits the granularity to milliseconds. Add the cputime_to_usecs primitive for architectures that have better, more precise CPU time values. Remove cputime_to_msecs primitive because there are no more users left. Signed-off-by: Michael Holzheu Acked-by: Balbir Singh Cc: Luck Tony Cc: Shailabh Nagar Cc: Martin Schwidefsky Cc: Oleg Nesterov Cc: Benjamin Herrenschmidt Cc: Heiko Carstens Cc: Thomas Gleixner Cc: Shailabh Nagar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm: remove pte_*map_nested()

2010-10-26T23:52:08Z

Since we no longer need to provide KM_type, the whole pte_*map_nested() API is now redundant, remove it. Signed-off-by: Peter Zijlstra Acked-by: Chris Metcalf Cc: David Howells Cc: Hugh Dickins Cc: Rik van Riel Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "H. Peter Anvin" Cc: Steven Rostedt Cc: Russell King Cc: Ralf Baechle Cc: David Miller Cc: Paul Mackerras Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[S390] topology: export cpu topology via proc/sysinfo

2010-10-25T14:10:21Z

Export the cpu configuration topology via sysinfo. Two new lines are introduced: CPU Topology HW: 0 0 0 4 6 4 CPU Topology SW: 0 0 0 0 4 24 The HW line describes the cpu topology nesting levels when the maximum nesting level is used to get the corresponding SYSIB. The SW line describes what Linux is actually using. In this case it supports only two levels (CONFIG_SCHED_BOOK off) and therefore the hardware folded the two lower levels in the SYSIB response block. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] topology: move topology sysinfo code

2010-10-25T14:10:21Z

Move the topology sysinfo SYSIB definitions to the proper place in asm/sysinfo.h where they should be. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] topology: clean up facility detection

2010-10-25T14:10:21Z

Move cpu topology facility detection to early setup code where it should be. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] cleanup facility list handling

2010-10-25T14:10:21Z

Store the facility list once at system startup with stfl/stfle and reuse the result for all facility tests. Signed-off-by: Martin Schwidefsky

[S390] remove ieee_instruction_pointer from thread_struct

2010-10-25T14:10:20Z

The ieee_instruction_pointer can not be read from user space anymore since git commit 613e1def6b52c399a8b72a5e11bc2e57d2546fb8, the ptrace interface always returns zero. Remove it from the thread_struct. It is still present in the user_regs_struct for compatability reasons. Signed-off-by: Martin Schwidefsky