BMC/Intel-BMC/linux.git/arch/sparc/include/asm/thread_info_32.h, branch dev

sparc: Fix execution domain removal

2015-04-12T19:03:31+00:00

ksp must be 8-byte aligned. Cc: Richard Weinberger Signed-off-by: Guenter Roeck Signed-off-by: Richard Weinberger

sparc: Remove signal translation and exec_domain

2015-04-12T19:03:21+00:00

As execution domain support is gone we can remove signal translation from the signal code and remove exec_domain from thread_info. Signed-off-by: Richard Weinberger Acked-by: David S. Miller

all arches, signal: move restart_block to struct task_struct

2015-02-13T02:54:12+00:00

If an attacker can cause a controlled kernel stack overflow, overwriting the restart block is a very juicy exploit target. This is because the restart_block is held in the same memory allocation as the kernel stack. Moving the restart block to struct task_struct prevents this exploit by making the restart_block harder to locate. Note that there are other fields in thread_info that are also easy targets, at least on some architectures. It's also a decent simplification, since the restart code is more or less identical on all architectures. [james.hogan@imgtec.com: metag: align thread_info::supervisor_stack] Signed-off-by: Andy Lutomirski Cc: Thomas Gleixner Cc: Al Viro Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Kees Cook Cc: David Miller Acked-by: Richard Weinberger Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: Vineet Gupta Cc: Russell King Cc: Catalin Marinas Cc: Will Deacon Cc: Haavard Skinnemoen Cc: Hans-Christian Egtvedt Cc: Steven Miao Cc: Mark Salter Cc: Aurelien Jacquiot Cc: Mikael Starvik Cc: Jesper Nilsson Cc: David Howells Cc: Richard Kuo Cc: "Luck, Tony" Cc: Geert Uytterhoeven Cc: Michal Simek Cc: Ralf Baechle Cc: Jonas Bonn Cc: "James E.J. Bottomley" Cc: Helge Deller Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Acked-by: Michael Ellerman (powerpc) Tested-by: Michael Ellerman (powerpc) Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Chen Liqin Cc: Lennox Wu Cc: Chris Metcalf Cc: Guan Xuetao Cc: Chris Zankel Cc: Max Filippov Cc: Oleg Nesterov Cc: Guenter Roeck Signed-off-by: James Hogan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

sparc: implement is_32bit_task

2014-09-23T20:21:27+00:00

We are currently embedding the same check from thread_info.h into syscall.h thanks to the way syscall_get_arch() was implemented in the audit tree. Instead create a new function, is_32bit_task() which is similar to that found on the powerpc arch. This simplifies the syscall.h code and makes the build/Kconfig requirements much easier to understand. Signed-off-by: Eric Paris Cc: Stephen Rothwell Cc: sparclinux@vger.kernel.org

preempt: Make PREEMPT_ACTIVE generic

2013-11-13T19:21:47+00:00

No point in having this bit defined by architecture. Signed-off-by: Thomas Gleixner Acked-by: Peter Zijlstra Link: http://lkml.kernel.org/r/20130917183629.090698799@linutronix.de

arch: Consolidate tsk_is_polling()

2013-04-08T15:39:22+00:00

Move it to a common place. Preparatory patch for implementing set/clear for the idle need_resched poll implementation. Signed-off-by: Thomas Gleixner Cc: Linus Torvalds Cc: Rusty Russell Cc: Paul McKenney Cc: Peter Zijlstra Reviewed-by: Cc: Srivatsa S. Bhat Cc: Magnus Damm Link: http://lkml.kernel.org/r/20130321215233.446034505@linutronix.de Signed-off-by: Thomas Gleixner

sanitize tsk_is_polling()

2012-10-01T13:58:13+00:00

Make default just return 0. The current default (checking TIF_POLLING_NRFLAG) is taken to architectures that need it; ones that don't do polling in their idle threads don't need to defined TIF_POLLING_NRFLAG at all. ia64 defined both TS_POLLING (used by its tsk_is_polling()) and TIF_POLLING_NRFLAG (not used at all). Killed the latter... Signed-off-by: Al Viro

bury _TIF_RESTORE_SIGMASK

2012-10-01T13:58:12+00:00

never used... Signed-off-by: Al Viro

TIF_RESTORE_SIGMASK can be set only when TIF_SIGPENDING is set

2012-06-01T16:58:50+00:00

Signed-off-by: Al Viro

sparc32: use the common implementation of alloc_thread_info_node()

2012-05-22T19:02:56+00:00

With sun4c removed we can fall-back to the common implementation. Signed-off-by: Sam Ravnborg Cc: Thomas Gleixner Acked-by: Thomas Gleixner Signed-off-by: David S. Miller