| commit | f4192bf2dc5ae3b24ffb004e771397e737ef01e0 | |
| author | Michael Holzheu <holzheu@linux.vnet.ibm.com> | |
| Tue, 15 Apr 2014 09:25:28 +0000 (15 11:25 +0200) | ||
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | |
| Tue, 20 May 2014 06:58:45 +0000 (20 08:58 +0200) | ||
| tree | 3d37a4d431205fc6c6657b30af9f60c177b54743 | treesnapshot (tar.gz zip) |
| parent | 0d234a28960413bfa91aa7030774ae7758fca44a | commitdiff |
s390/smp: Avoid busy loop after halt and "begin" on z/VM
Currently the smp_stop_cpu() function for SMP kernels enters a busy
loop when "begin" is entered on the z/VM console after Linux is halted.
To avoid this behavior, use the non-SMP variant of smp_stop_cpu()
which stops the CPU again after "begin" is entered. As a side
effect we now have consistent behavior for SMP and non-SMP Linux.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Currently the smp_stop_cpu() function for SMP kernels enters a busy
loop when "begin" is entered on the z/VM console after Linux is halted.
To avoid this behavior, use the non-SMP variant of smp_stop_cpu()
which stops the CPU again after "begin" is entered. As a side
effect we now have consistent behavior for SMP and non-SMP Linux.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| arch/s390/include/asm/smp.h | diffblobblamehistory | |
| arch/s390/kernel/smp.c | diffblobblamehistory |