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-rw-r--r--blockjob.c24
1 files changed, 20 insertions, 4 deletions
diff --git a/blockjob.c b/blockjob.c
index cd1f4c0712..eae8fe7cbf 100644
--- a/blockjob.c
+++ b/blockjob.c
@@ -304,6 +304,19 @@ static void block_job_completed_single(BlockJob *job)
block_job_unref(job);
}
+static void block_job_cancel_async(BlockJob *job)
+{
+ if (job->iostatus != BLOCK_DEVICE_IO_STATUS_OK) {
+ block_job_iostatus_reset(job);
+ }
+ if (job->user_paused) {
+ /* Do not call block_job_enter here, the caller will handle it. */
+ job->user_paused = false;
+ job->pause_count--;
+ }
+ job->cancelled = true;
+}
+
static void block_job_completed_txn_abort(BlockJob *job)
{
AioContext *ctx;
@@ -328,7 +341,7 @@ static void block_job_completed_txn_abort(BlockJob *job)
* them; this job, however, may or may not be cancelled, depending
* on the caller, so leave it. */
if (other_job != job) {
- other_job->cancelled = true;
+ block_job_cancel_async(other_job);
}
continue;
}
@@ -411,8 +424,8 @@ bool block_job_user_paused(BlockJob *job)
void block_job_user_resume(BlockJob *job)
{
if (job && job->user_paused && job->pause_count > 0) {
- job->user_paused = false;
block_job_iostatus_reset(job);
+ job->user_paused = false;
block_job_resume(job);
}
}
@@ -420,8 +433,7 @@ void block_job_user_resume(BlockJob *job)
void block_job_cancel(BlockJob *job)
{
if (block_job_started(job)) {
- job->cancelled = true;
- block_job_iostatus_reset(job);
+ block_job_cancel_async(job);
block_job_enter(job);
} else {
block_job_completed(job, -ECANCELED);
@@ -765,6 +777,10 @@ void block_job_yield(BlockJob *job)
void block_job_iostatus_reset(BlockJob *job)
{
+ if (job->iostatus == BLOCK_DEVICE_IO_STATUS_OK) {
+ return;
+ }
+ assert(job->user_paused && job->pause_count > 0);
job->iostatus = BLOCK_DEVICE_IO_STATUS_OK;
}