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qemu: Introduce qemuDomainAgentJob

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Introduce guest agent specific job categories to allow threads to
run agent monitor specific jobs while normal monitor jobs can
also be running.

Alter _qemuDomainJobObj in order to duplicate certain fields that
will be used for guest agent specific tasks to increase
concurrency and throughput and reduce serialization.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
This commit is contained in:
Michal Privoznik 2018-06-19 08:11:39 +02:00
parent df6f857fbf
commit 4621350f6d
2 changed files with 24 additions and 0 deletions
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6
src/qemu/qemu_domain.c
View File

@ -93,6 +93,12 @@ VIR_ENUM_IMPL(qemuDomainJob, QEMU_JOB_LAST,
"async nested",
);
VIR_ENUM_IMPL(qemuDomainAgentJob, QEMU_AGENT_JOB_LAST,
"none",
"query",
"modify",
);
VIR_ENUM_IMPL(qemuDomainAsyncJob, QEMU_ASYNC_JOB_LAST,
"none",
"migration out",

18
src/qemu/qemu_domain.h
View File

@ -82,6 +82,15 @@ typedef enum {
} qemuDomainJob;
VIR_ENUM_DECL(qemuDomainJob)
typedef enum {
QEMU_AGENT_JOB_NONE = 0, /* No agent job. */
QEMU_AGENT_JOB_QUERY, /* Does not change state of domain */
QEMU_AGENT_JOB_MODIFY, /* May change state of domain */
QEMU_AGENT_JOB_LAST
} qemuDomainAgentJob;
VIR_ENUM_DECL(qemuDomainAgentJob)
/* Async job consists of a series of jobs that may change state. Independent
* jobs that do not change state (and possibly others if explicitly allowed by
* current async job) are allowed to be run even if async job is active.
@ -158,11 +167,20 @@ typedef struct _qemuDomainJobObj qemuDomainJobObj;
typedef qemuDomainJobObj *qemuDomainJobObjPtr;
struct _qemuDomainJobObj {
virCond cond; /* Use to coordinate jobs */
/* The following members are for QEMU_JOB_* */
qemuDomainJob active; /* Currently running job */
unsigned long long owner; /* Thread id which set current job */
const char *ownerAPI; /* The API which owns the job */
unsigned long long started; /* When the current job started */
/* The following members are for QEMU_AGENT_JOB_* */
qemuDomainAgentJob agentActive; /* Currently running agent job */
unsigned long long agentOwner; /* Thread id which set current agent job */
const char *agentOwnerAPI; /* The API which owns the agent job */
unsigned long long agentStarted; /* When the current agent job started */
/* The following members are for QEMU_ASYNC_JOB_* */
virCond asyncCond; /* Use to coordinate with async jobs */
qemuDomainAsyncJob asyncJob; /* Currently active async job */
unsigned long long asyncOwner; /* Thread which set current async job */