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powerpc/pseries: Hypervisor call tracepoints hcall_stats touchup 

The tb_total and purr_total values reported via the hcall_stats code
should be cumulative, rather than being replaced by the latest delta tb
or purr value.

Tested-by: Will Schmidt <will_schmidt@vnet.ibm.com>
Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com>
Acked-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Will Schmidt 2009-11-25 06:12:09 +00:00 committed by Benjamin Herrenschmidt
parent efec959f63
commit 25ef231de2
1 changed files with 2 additions and 2 deletions
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4
arch/powerpc/platforms/pseries/hvCall_inst.c
View File

@ -124,8 +124,8 @@ static void probe_hcall_exit(unsigned long opcode, unsigned long retval,
h = &__get_cpu_var(hcall_stats)[opcode / 4];
h->num_calls++;
h->tb_total = mftb() - h->tb_start;
h->purr_total = mfspr(SPRN_PURR) - h->purr_start;
h->tb_total += mftb() - h->tb_start;
h->purr_total += mfspr(SPRN_PURR) - h->purr_start;
put_cpu_var(hcall_stats);
}