Li Zhong ebb7f616ab powerpc: Fix unpaired __trace_hcall_entry and __trace_hcall_exit ...

Unpaired calling of __trace_hcall_entry and __trace_hcall_exit could
 cause incorrect preempt count. And it might happen as the global
 variable hcall_tracepoint_refcount is checked separately before calling
 them.

 Instead, store the value that was used on entry in the stack frame
 and retreive it from there after the call

Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

2012-01-11 12:50:26 +11:00

..

boot

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2012-01-06 17:58:22 -08:00

configs

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2012-01-06 17:58:22 -08:00

include/asm

Merge branch 'kvm-updates/3.3' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2012-01-10 09:57:11 -08:00

kernel

powerpc: Fix RCU idle and hcall tracing

2012-01-11 11:54:20 +11:00

kvm

Merge branch 'kvm-updates/3.3' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2012-01-10 09:57:11 -08:00

lib

powerpc: POWER7 optimised copy_to_user/copy_from_user using VMX

2011-12-19 14:40:40 +11:00

math-emu

powerpc/math_emu/efp: Look for errata handler when type mismatches

2011-10-06 23:36:47 -05:00

mm

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2012-01-08 13:21:22 -08:00

net

net: filter: BPF 'JIT' compiler for PPC64

2011-07-21 12:38:32 -07:00

oprofile

powerpc/oprofile: Handle events that raise an exception without overflowing

2011-05-26 13:38:57 +10:00

platforms

powerpc: Fix unpaired __trace_hcall_entry and __trace_hcall_exit

2012-01-11 12:50:26 +11:00

sysdev

Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-01-08 12:19:57 -08:00

xmon

powerpc/xmon: Fix #if typo for systems without MSR[RI]

2011-11-25 14:11:28 +11:00

Kconfig

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2012-01-06 17:58:22 -08:00

Kconfig.debug

powerpc: Implement CONFIG_STRICT_DEVMEM

2011-11-28 11:42:08 +11:00

Makefile

powerpc: Process dynamic relocations for kernel

2011-12-20 10:21:08 -05:00

relocs_check.pl

powerpc: Process dynamic relocations for kernel

2011-12-20 10:21:08 -05:00