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Diffstat (limited to 'blockdev.c')
-rw-r--r--blockdev.c52
1 files changed, 39 insertions, 13 deletions
diff --git a/blockdev.c b/blockdev.c
index eb743a956c..501473da69 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2375,20 +2375,35 @@ void qmp_drive_mirror(const char *device, const char *target,
}
}
-static BlockJob *find_block_job(const char *device)
+/* Get the block job for a given device name and acquire its AioContext */
+static BlockJob *find_block_job(const char *device, AioContext **aio_context)
{
BlockDriverState *bs;
bs = bdrv_find(device);
- if (!bs || !bs->job) {
- return NULL;
+ if (!bs) {
+ goto notfound;
+ }
+
+ *aio_context = bdrv_get_aio_context(bs);
+ aio_context_acquire(*aio_context);
+
+ if (!bs->job) {
+ aio_context_release(*aio_context);
+ goto notfound;
}
+
return bs->job;
+
+notfound:
+ *aio_context = NULL;
+ return NULL;
}
void qmp_block_job_set_speed(const char *device, int64_t speed, Error **errp)
{
- BlockJob *job = find_block_job(device);
+ AioContext *aio_context;
+ BlockJob *job = find_block_job(device, &aio_context);
if (!job) {
error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device);
@@ -2396,34 +2411,40 @@ void qmp_block_job_set_speed(const char *device, int64_t speed, Error **errp)
}
block_job_set_speed(job, speed, errp);
+ aio_context_release(aio_context);
}
void qmp_block_job_cancel(const char *device,
bool has_force, bool force, Error **errp)
{
- BlockJob *job = find_block_job(device);
-
- if (!has_force) {
- force = false;
- }
+ AioContext *aio_context;
+ BlockJob *job = find_block_job(device, &aio_context);
if (!job) {
error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device);
return;
}
+
+ if (!has_force) {
+ force = false;
+ }
+
if (job->paused && !force) {
error_setg(errp, "The block job for device '%s' is currently paused",
device);
- return;
+ goto out;
}
trace_qmp_block_job_cancel(job);
block_job_cancel(job);
+out:
+ aio_context_release(aio_context);
}
void qmp_block_job_pause(const char *device, Error **errp)
{
- BlockJob *job = find_block_job(device);
+ AioContext *aio_context;
+ BlockJob *job = find_block_job(device, &aio_context);
if (!job) {
error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device);
@@ -2432,11 +2453,13 @@ void qmp_block_job_pause(const char *device, Error **errp)
trace_qmp_block_job_pause(job);
block_job_pause(job);
+ aio_context_release(aio_context);
}
void qmp_block_job_resume(const char *device, Error **errp)
{
- BlockJob *job = find_block_job(device);
+ AioContext *aio_context;
+ BlockJob *job = find_block_job(device, &aio_context);
if (!job) {
error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device);
@@ -2445,11 +2468,13 @@ void qmp_block_job_resume(const char *device, Error **errp)
trace_qmp_block_job_resume(job);
block_job_resume(job);
+ aio_context_release(aio_context);
}
void qmp_block_job_complete(const char *device, Error **errp)
{
- BlockJob *job = find_block_job(device);
+ AioContext *aio_context;
+ BlockJob *job = find_block_job(device, &aio_context);
if (!job) {
error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device);
@@ -2458,6 +2483,7 @@ void qmp_block_job_complete(const char *device, Error **errp)
trace_qmp_block_job_complete(job);
block_job_complete(job, errp);
+ aio_context_release(aio_context);
}
void qmp_change_backing_file(const char *device,