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| author | Milton Miller <miltonm@bga.com> | 2011-05-10 19:29:06 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-05-19 14:30:46 +1000 |
| commit | e04763713286b1e00e1c2a33fe2741caf9470f2b (patch) | |
| tree | 0c02b77b7a063c7e240dd953e6c7bd9965eff020 /arch/powerpc/xmon | |
| parent | 2a116f3dd07cbb55b440d3841fc24a0b3fd99ccd (diff) | |
| download | blackbird-op-linux-e04763713286b1e00e1c2a33fe2741caf9470f2b.tar.gz blackbird-op-linux-e04763713286b1e00e1c2a33fe2741caf9470f2b.zip | |
powerpc: Remove call sites of MSG_ALL_BUT_SELF
The only user of MSG_ALL_BUT_SELF in the whole kernel tree is powerpc,
and it only uses it to start the debugger. Both debuggers always call
smp_send_debugger_break with MSG_ALL_BUT_SELF, and only mpic can do
anything more optimal than a loop over all online cpus, but all message
passing implementations have to code for this special delivery target.
Convert smp_send_debugger_break to take void and loop calling the smp_ops
message_pass function for each of the other cpus in the online cpumask.
Use raw_smp_processor_id() because we are either entering the debugger
or trying to start kdump and the additional warning it not useful were
it to trigger.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/xmon')
| -rw-r--r-- | arch/powerpc/xmon/xmon.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 91309c5c00d7..42541bbcc7fa 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -437,7 +437,7 @@ static int xmon_core(struct pt_regs *regs, int fromipi) xmon_owner = cpu; mb(); if (ncpus > 1) { - smp_send_debugger_break(MSG_ALL_BUT_SELF); + smp_send_debugger_break(); /* wait for other cpus to come in */ for (timeout = 100000000; timeout != 0; --timeout) { if (cpumask_weight(&cpus_in_xmon) >= ncpus) |
