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x86, MCE: Use notifier chain only for MCE decoding 

Drop the edac_mce custom hook in favor of the generic notifier
mechanism. Also, do not log the error to mcelog if the notified agent
was able to decode it.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Borislav Petkov 2011-07-18 11:24:45 -03:00 committed by Mauro Carvalho Chehab
parent 5034086b72
commit f0cb545243
1 changed files with 6 additions and 11 deletions
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17
arch/x86/kernel/cpu/mcheck/mce.c
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@ -144,23 +144,20 @@ static struct mce_log mcelog = {
void mce_log(struct mce *mce)
{
unsigned next, entry;
int ret = 0;
/* Emit the trace record: */
trace_mce_record(mce);
ret = atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, mce);
if (ret == NOTIFY_STOP)
return;
mce->finished = 0;
wmb();
for (;;) {
entry = rcu_dereference_check_mce(mcelog.next);
for (;;) {
/*
* If edac_mce is enabled, it will check the error type
* and will process it, if it is a known error.
* Otherwise, the error will be sent through mcelog
* interface
*/
if (edac_mce_parse(mce))
return;
/*
* When the buffer fills up discard new entries.
@ -551,10 +548,8 @@ void machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
* Don't get the IP here because it's unlikely to
* have anything to do with the actual error location.
*/
if (!(flags & MCP_DONTLOG) && !mce_dont_log_ce) {
if (!(flags & MCP_DONTLOG) && !mce_dont_log_ce)
mce_log(&m);
atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, &m);
}
/*
* Clear state for this bank.