![]() 2.6.25-rc1 percpu changes broke CONFIG_DEBUG_PREEMPT's per_cpu checking on several architectures. On s390, sparc64 and x86 it's been weakened to not checking at all; whereas on powerpc64 it's become too strict, issuing warnings from __raw_get_cpu_var in io_schedule and init_timer for example. Fix this by weakening powerpc's __my_cpu_offset to use the non-checking local_paca instead of get_paca (which itself contains such a check); and strengthening the generic my_cpu_offset to go the old slow way via smp_processor_id when CONFIG_DEBUG_PREEMPT (debug_smp_processor_id is where all the knowledge of what's correct when lives). Signed-off-by: Hugh Dickins <hugh@veritas.com> Reviewed-by: Mike Travis <travis@sgi.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
---|---|---|
.. | ||
bitops | ||
4level-fixup.h | ||
atomic.h | ||
audit_change_attr.h | ||
audit_dir_write.h | ||
audit_read.h | ||
audit_signal.h | ||
audit_write.h | ||
bitops.h | ||
bug.h | ||
cmpxchg-local.h | ||
cmpxchg.h | ||
cputime.h | ||
device.h | ||
div64.h | ||
dma-mapping-broken.h | ||
dma-mapping.h | ||
emergency-restart.h | ||
errno-base.h | ||
errno.h | ||
fcntl.h | ||
futex.h | ||
gpio.h | ||
ide_iops.h | ||
ioctl.h | ||
iomap.h | ||
irq_regs.h | ||
Kbuild | ||
Kbuild.asm | ||
kdebug.h | ||
libata-portmap.h | ||
local.h | ||
memory_model.h | ||
mm_hooks.h | ||
mman.h | ||
mutex-dec.h | ||
mutex-null.h | ||
mutex-xchg.h | ||
page.h | ||
pci-dma-compat.h | ||
pci.h | ||
percpu.h | ||
pgtable-nopmd.h | ||
pgtable-nopud.h | ||
pgtable.h | ||
poll.h | ||
resource.h | ||
rtc.h | ||
sections.h | ||
siginfo.h | ||
signal.h | ||
statfs.h | ||
termios.h | ||
tlb.h | ||
topology.h | ||
uaccess.h | ||
unaligned.h | ||
vmlinux.lds.h | ||
xor.h |