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qemu: check if block I/O limits fit into long long

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We can only pass values up to LLONG_MAX through JSON
and QEMU checks if the int64_t number is not negative
at startup since 1.5.0.

https://bugzilla.redhat.com/show_bug.cgi?id=974010
(cherry picked from commit d3c87884927e6b745d0a5680e6d94a40c4f484f7)
This commit is contained in:
Ján Tomko 2013-06-24 14:18:14 +02:00 committed by Cole Robinson
parent 22d9d9a28f
commit a717d7ba0f
1 changed files with 7 additions and 0 deletions
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7
src/qemu/qemu_driver.c
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@ -13624,6 +13624,13 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
for (i = 0; i < nparams; i++) {
virTypedParameterPtr param = &params[i];
if (param->value.ul > LLONG_MAX) {
virReportError(VIR_ERR_OVERFLOW,
_("block I/O throttle limit value must"
" be less than %llu"), LLONG_MAX);
goto endjob;
}
if (STREQ(param->field, VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_BYTES_SEC)) {
info.total_bytes_sec = param->value.ul;
set_bytes = true;