diff options
| author | Michael Ellerman <michael@ellerman.id.au> | 2008-04-30 13:21:45 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-04-30 19:49:48 +1000 |
| commit | 3243d87441bf7f97c5c9f7dd46b35f5783ec6740 (patch) | |
| tree | 7765277523d0146bccb5bde64df67b13723211a9 /arch/powerpc/kernel/machine_kexec.c | |
| parent | 595f403c1af37b1339e64b89040528b8cd48c5a3 (diff) | |
[POWERPC] Make emergency stack safe for current_thread_info() use
The current_thread_info() macro, used by preempt_count(), assumes the
base address and size of the stack are THREAD_SIZE aligned.
The emergency stack currently isn't either of these things, which
could potentially cause problems anytime we're running on the
emergency stack. That includes when we detect a bad kernel stack
pointer, and also during early_setup_secondary().
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/machine_kexec.c')
0 files changed, 0 insertions, 0 deletions