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| author | Michael Holzheu <holzheu@linux.vnet.ibm.com> | 2012-03-13 16:25:08 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-03-13 16:26:23 +0100 |
| commit | c6da39f26cfe475704ec521723192e520e8f51b8 (patch) | |
| tree | b06df4190e3dbab104e515d7372de0ddc35d9a62 /arch/s390/kernel | |
| parent | [S390] Ensure that vmcore_info pointer is never accessed directly (diff) | |
| download | linux-c6da39f26cfe475704ec521723192e520e8f51b8.tar.xz linux-c6da39f26cfe475704ec521723192e520e8f51b8.zip | |
[S390] kernel: Pass correct stack for smp_call_ipl_cpu()
Currently pcpu_devices->panic_stack is passed to pcpu_delegate() in
smp_call_ipl_cpu(). This is wrong because pcpu_delegate() expects
the bottom (high address) of the stack and pcpu_devices->panic_stack
points to the top (low address). We now pass the bottom of the stack
which is pcpu_devices->panic_stack + PAGE_SIZE.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel')
| -rw-r--r-- | arch/s390/kernel/smp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 3b9e5c9f4c0b..64ebbcbb31ea 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -335,7 +335,8 @@ void smp_call_online_cpu(void (*func)(void *), void *data) */ void smp_call_ipl_cpu(void (*func)(void *), void *data) { - pcpu_delegate(&pcpu_devices[0], func, data, pcpu_devices->panic_stack); + pcpu_delegate(&pcpu_devices[0], func, data, + pcpu_devices->panic_stack + PAGE_SIZE); } int smp_find_processor_id(u16 address) |