[libvirt] [PATCH v2 01/12] qemu: Create a macro to handle setting bytes/iops iotune values
John Ferlan
jferlan at redhat.com
Thu Oct 6 22:38:49 UTC 2016
Create a macros to hide all the comparisons for each of the fields.
Add a 'continue;' for a compiler hint that we only need to find one
this should be similar enough to the if - elseif - elseif logic.
Signed-off-by: John Ferlan <jferlan at redhat.com>
---
src/qemu/qemu_driver.c | 153 +++++++++++--------------------------------------
1 file changed, 35 insertions(+), 118 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 29a7e3f..3ce3f2d 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -17371,6 +17371,18 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
VIR_DOMAIN_TUNABLE_BLKDEV_DISK, path) < 0)
goto endjob;
+#define SET_IOTUNE_FIELD(FIELD, BOOL, CONST) \
+ if (STREQ(param->field, VIR_DOMAIN_BLOCK_IOTUNE_##CONST)) { \
+ info.FIELD = param->value.ul; \
+ BOOL = true; \
+ if (virTypedParamsAddULLong(&eventParams, &eventNparams, \
+ &eventMaxparams, \
+ VIR_DOMAIN_TUNABLE_BLKDEV_##CONST, \
+ param->value.ul) < 0) \
+ goto endjob; \
+ continue; \
+ }
+
for (i = 0; i < nparams; i++) {
virTypedParameterPtr param = ¶ms[i];
@@ -17381,124 +17393,29 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
goto endjob;
}
- if (STREQ(param->field, VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_BYTES_SEC)) {
- info.total_bytes_sec = param->value.ul;
- set_bytes = true;
- if (virTypedParamsAddULLong(&eventParams, &eventNparams,
- &eventMaxparams,
- VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_BYTES_SEC,
- param->value.ul) < 0)
- goto endjob;
- } else if (STREQ(param->field,
- VIR_DOMAIN_BLOCK_IOTUNE_READ_BYTES_SEC)) {
- info.read_bytes_sec = param->value.ul;
- set_bytes = true;
- if (virTypedParamsAddULLong(&eventParams, &eventNparams,
- &eventMaxparams,
- VIR_DOMAIN_TUNABLE_BLKDEV_READ_BYTES_SEC,
- param->value.ul) < 0)
- goto endjob;
- } else if (STREQ(param->field,
- VIR_DOMAIN_BLOCK_IOTUNE_WRITE_BYTES_SEC)) {
- info.write_bytes_sec = param->value.ul;
- set_bytes = true;
- if (virTypedParamsAddULLong(&eventParams, &eventNparams,
- &eventMaxparams,
- VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_BYTES_SEC,
- param->value.ul) < 0)
- goto endjob;
- } else if (STREQ(param->field,
- VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_IOPS_SEC)) {
- info.total_iops_sec = param->value.ul;
- set_iops = true;
- if (virTypedParamsAddULLong(&eventParams, &eventNparams,
- &eventMaxparams,
- VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_IOPS_SEC,
- param->value.ul) < 0)
- goto endjob;
- } else if (STREQ(param->field,
- VIR_DOMAIN_BLOCK_IOTUNE_READ_IOPS_SEC)) {
- info.read_iops_sec = param->value.ul;
- set_iops = true;
- if (virTypedParamsAddULLong(&eventParams, &eventNparams,
- &eventMaxparams,
- VIR_DOMAIN_TUNABLE_BLKDEV_READ_IOPS_SEC,
- param->value.ul) < 0)
- goto endjob;
- } else if (STREQ(param->field,
- VIR_DOMAIN_BLOCK_IOTUNE_WRITE_IOPS_SEC)) {
- info.write_iops_sec = param->value.ul;
- set_iops = true;
- if (virTypedParamsAddULLong(&eventParams, &eventNparams,
- &eventMaxparams,
- VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_IOPS_SEC,
- param->value.ul) < 0)
- goto endjob;
- } else if (STREQ(param->field,
- VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_BYTES_SEC_MAX)) {
- info.total_bytes_sec_max = param->value.ul;
- set_bytes_max = true;
- if (virTypedParamsAddULLong(&eventParams, &eventNparams,
- &eventMaxparams,
- VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_BYTES_SEC_MAX,
- param->value.ul) < 0)
- goto endjob;
- } else if (STREQ(param->field,
- VIR_DOMAIN_BLOCK_IOTUNE_READ_BYTES_SEC_MAX)) {
- info.read_bytes_sec_max = param->value.ul;
- set_bytes_max = true;
- if (virTypedParamsAddULLong(&eventParams, &eventNparams,
- &eventMaxparams,
- VIR_DOMAIN_TUNABLE_BLKDEV_READ_BYTES_SEC_MAX,
- param->value.ul) < 0)
- goto endjob;
- } else if (STREQ(param->field,
- VIR_DOMAIN_BLOCK_IOTUNE_WRITE_BYTES_SEC_MAX)) {
- info.write_bytes_sec_max = param->value.ul;
- set_bytes_max = true;
- if (virTypedParamsAddULLong(&eventParams, &eventNparams,
- &eventMaxparams,
- VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_BYTES_SEC_MAX,
- param->value.ul) < 0)
- goto endjob;
- } else if (STREQ(param->field,
- VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_IOPS_SEC_MAX)) {
- info.total_iops_sec_max = param->value.ul;
- set_iops_max = true;
- if (virTypedParamsAddULLong(&eventParams, &eventNparams,
- &eventMaxparams,
- VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_IOPS_SEC_MAX,
- param->value.ul) < 0)
- goto endjob;
- } else if (STREQ(param->field,
- VIR_DOMAIN_BLOCK_IOTUNE_READ_IOPS_SEC_MAX)) {
- info.read_iops_sec_max = param->value.ul;
- set_iops_max = true;
- if (virTypedParamsAddULLong(&eventParams, &eventNparams,
- &eventMaxparams,
- VIR_DOMAIN_TUNABLE_BLKDEV_READ_IOPS_SEC_MAX,
- param->value.ul) < 0)
- goto endjob;
- } else if (STREQ(param->field,
- VIR_DOMAIN_BLOCK_IOTUNE_WRITE_IOPS_SEC_MAX)) {
- info.write_iops_sec_max = param->value.ul;
- set_iops_max = true;
- if (virTypedParamsAddULLong(&eventParams, &eventNparams,
- &eventMaxparams,
- VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_IOPS_SEC_MAX,
- param->value.ul) < 0)
- goto endjob;
- } else if (STREQ(param->field,
- VIR_DOMAIN_BLOCK_IOTUNE_SIZE_IOPS_SEC)) {
- info.size_iops_sec = param->value.ul;
- set_size_iops = true;
- if (virTypedParamsAddULLong(&eventParams, &eventNparams,
- &eventMaxparams,
- VIR_DOMAIN_TUNABLE_BLKDEV_SIZE_IOPS_SEC,
- param->value.ul) < 0)
- goto endjob;
- }
- }
+ SET_IOTUNE_FIELD(total_bytes_sec, set_bytes, TOTAL_BYTES_SEC);
+ SET_IOTUNE_FIELD(read_bytes_sec, set_bytes, READ_BYTES_SEC);
+ SET_IOTUNE_FIELD(write_bytes_sec, set_bytes, WRITE_BYTES_SEC);
+ SET_IOTUNE_FIELD(total_iops_sec, set_iops, TOTAL_IOPS_SEC);
+ SET_IOTUNE_FIELD(read_iops_sec, set_iops, READ_IOPS_SEC);
+ SET_IOTUNE_FIELD(write_iops_sec, set_iops, WRITE_IOPS_SEC);
+
+ SET_IOTUNE_FIELD(total_bytes_sec_max, set_bytes_max,
+ TOTAL_BYTES_SEC_MAX);
+ SET_IOTUNE_FIELD(read_bytes_sec_max, set_bytes_max,
+ READ_BYTES_SEC_MAX);
+ SET_IOTUNE_FIELD(write_bytes_sec_max, set_bytes_max,
+ WRITE_BYTES_SEC_MAX);
+ SET_IOTUNE_FIELD(total_iops_sec_max, set_iops_max,
+ TOTAL_IOPS_SEC_MAX);
+ SET_IOTUNE_FIELD(read_iops_sec_max, set_iops_max,
+ READ_IOPS_SEC_MAX);
+ SET_IOTUNE_FIELD(write_iops_sec_max, set_iops_max,
+ WRITE_IOPS_SEC_MAX);
+ SET_IOTUNE_FIELD(size_iops_sec, set_size_iops, SIZE_IOPS_SEC);
+ }
+
+#undef SET_IOTUNE_FIELD
if ((info.total_bytes_sec && info.read_bytes_sec) ||
(info.total_bytes_sec && info.write_bytes_sec)) {
--
2.7.4
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