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-rw-r--r--block/backup.c19
-rw-r--r--block/commit.c1
-rw-r--r--block/mirror.c28
-rw-r--r--block/stream.c1
-rw-r--r--blockjob.c13
-rw-r--r--include/block/blockjob_int.h19
-rw-r--r--include/qemu/job.h13
-rw-r--r--job.c12
-rw-r--r--tests/test-bdrv-drain.c3
-rw-r--r--tests/test-block-iothread.c1
-rw-r--r--tests/test-blockjob-txn.c1
-rw-r--r--tests/test-blockjob.c2
12 files changed, 5 insertions, 108 deletions
diff --git a/block/backup.c b/block/backup.c
index 03637aeb11..763f0d7ff6 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -425,21 +425,6 @@ void backup_do_checkpoint(BlockJob *job, Error **errp)
bdrv_set_dirty_bitmap(backup_job->copy_bitmap, 0, backup_job->len);
}
-static void backup_drain(BlockJob *job)
-{
- BackupBlockJob *s = container_of(job, BackupBlockJob, common);
-
- /* Need to keep a reference in case blk_drain triggers execution
- * of backup_complete...
- */
- if (s->target) {
- BlockBackend *target = s->target;
- blk_ref(target);
- blk_drain(target);
- blk_unref(target);
- }
-}
-
static BlockErrorAction backup_error_action(BackupBlockJob *job,
bool read, int error)
{
@@ -588,13 +573,11 @@ static const BlockJobDriver backup_job_driver = {
.job_type = JOB_TYPE_BACKUP,
.free = block_job_free,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
.run = backup_run,
.commit = backup_commit,
.abort = backup_abort,
.clean = backup_clean,
- },
- .drain = backup_drain,
+ }
};
static int64_t backup_calculate_cluster_size(BlockDriverState *target,
diff --git a/block/commit.c b/block/commit.c
index 408ae15389..bc8454463d 100644
--- a/block/commit.c
+++ b/block/commit.c
@@ -216,7 +216,6 @@ static const BlockJobDriver commit_job_driver = {
.job_type = JOB_TYPE_COMMIT,
.free = block_job_free,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
.run = commit_run,
.prepare = commit_prepare,
.abort = commit_abort,
diff --git a/block/mirror.c b/block/mirror.c
index 853e2c7510..fe984efb90 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -646,14 +646,11 @@ static int mirror_exit_common(Job *job)
bdrv_ref(mirror_top_bs);
bdrv_ref(target_bs);
- /* Remove target parent that still uses BLK_PERM_WRITE/RESIZE before
+ /*
+ * Remove target parent that still uses BLK_PERM_WRITE/RESIZE before
* inserting target_bs at s->to_replace, where we might not be able to get
* these permissions.
- *
- * Note that blk_unref() alone doesn't necessarily drop permissions because
- * we might be running nested inside mirror_drain(), which takes an extra
- * reference, so use an explicit blk_set_perm() first. */
- blk_set_perm(s->target, 0, BLK_PERM_ALL, &error_abort);
+ */
blk_unref(s->target);
s->target = NULL;
@@ -1149,28 +1146,12 @@ static bool mirror_drained_poll(BlockJob *job)
return !!s->in_flight;
}
-static void mirror_drain(BlockJob *job)
-{
- MirrorBlockJob *s = container_of(job, MirrorBlockJob, common);
-
- /* Need to keep a reference in case blk_drain triggers execution
- * of mirror_complete...
- */
- if (s->target) {
- BlockBackend *target = s->target;
- blk_ref(target);
- blk_drain(target);
- blk_unref(target);
- }
-}
-
static const BlockJobDriver mirror_job_driver = {
.job_driver = {
.instance_size = sizeof(MirrorBlockJob),
.job_type = JOB_TYPE_MIRROR,
.free = block_job_free,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
.run = mirror_run,
.prepare = mirror_prepare,
.abort = mirror_abort,
@@ -1178,7 +1159,6 @@ static const BlockJobDriver mirror_job_driver = {
.complete = mirror_complete,
},
.drained_poll = mirror_drained_poll,
- .drain = mirror_drain,
};
static const BlockJobDriver commit_active_job_driver = {
@@ -1187,7 +1167,6 @@ static const BlockJobDriver commit_active_job_driver = {
.job_type = JOB_TYPE_COMMIT,
.free = block_job_free,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
.run = mirror_run,
.prepare = mirror_prepare,
.abort = mirror_abort,
@@ -1195,7 +1174,6 @@ static const BlockJobDriver commit_active_job_driver = {
.complete = mirror_complete,
},
.drained_poll = mirror_drained_poll,
- .drain = mirror_drain,
};
static void coroutine_fn
diff --git a/block/stream.c b/block/stream.c
index 0d3a6ac7c3..5562ccbf57 100644
--- a/block/stream.c
+++ b/block/stream.c
@@ -212,7 +212,6 @@ static const BlockJobDriver stream_job_driver = {
.abort = stream_abort,
.clean = stream_clean,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
},
};
diff --git a/blockjob.c b/blockjob.c
index 6e32d1a0c0..2abed0f551 100644
--- a/blockjob.c
+++ b/blockjob.c
@@ -90,18 +90,6 @@ void block_job_free(Job *job)
error_free(bjob->blocker);
}
-void block_job_drain(Job *job)
-{
- BlockJob *bjob = container_of(job, BlockJob, job);
- const JobDriver *drv = job->driver;
- BlockJobDriver *bjdrv = container_of(drv, BlockJobDriver, job_driver);
-
- blk_drain(bjob->blk);
- if (bjdrv->drain) {
- bjdrv->drain(bjob);
- }
-}
-
static char *child_job_get_parent_desc(BdrvChild *c)
{
BlockJob *job = c->opaque;
@@ -422,7 +410,6 @@ void *block_job_create(const char *job_id, const BlockJobDriver *driver,
assert(is_block_job(&job->job));
assert(job->job.driver->free == &block_job_free);
assert(job->job.driver->user_resume == &block_job_user_resume);
- assert(job->job.driver->drain == &block_job_drain);
job->blk = blk;
diff --git a/include/block/blockjob_int.h b/include/block/blockjob_int.h
index e4a318dd15..e2824a36a8 100644
--- a/include/block/blockjob_int.h
+++ b/include/block/blockjob_int.h
@@ -52,17 +52,6 @@ struct BlockJobDriver {
* besides job->blk to the new AioContext.
*/
void (*attached_aio_context)(BlockJob *job, AioContext *new_context);
-
- /*
- * If the callback is not NULL, it will be invoked when the job has to be
- * synchronously cancelled or completed; it should drain BlockDriverStates
- * as required to ensure progress.
- *
- * Block jobs must use the default implementation for job_driver.drain,
- * which will in turn call this callback after doing generic block job
- * stuff.
- */
- void (*drain)(BlockJob *job);
};
/**
@@ -108,14 +97,6 @@ void block_job_free(Job *job);
void block_job_user_resume(Job *job);
/**
- * block_job_drain:
- * Callback to be used for JobDriver.drain in all block jobs. Drains the main
- * block node associated with the block jobs and calls BlockJobDriver.drain for
- * job-specific actions.
- */
-void block_job_drain(Job *job);
-
-/**
* block_job_ratelimit_get_delay:
*
* Calculate and return delay for the next request in ns. See the documentation
diff --git a/include/qemu/job.h b/include/qemu/job.h
index 73c67d3175..bd59cd8944 100644
--- a/include/qemu/job.h
+++ b/include/qemu/job.h
@@ -220,13 +220,6 @@ struct JobDriver {
*/
void (*complete)(Job *job, Error **errp);
- /*
- * If the callback is not NULL, it will be invoked when the job has to be
- * synchronously cancelled or completed; it should drain any activities
- * as required to ensure progress.
- */
- void (*drain)(Job *job);
-
/**
* If the callback is not NULL, prepare will be invoked when all the jobs
* belonging to the same transaction complete; or upon this job's completion
@@ -470,12 +463,6 @@ bool job_user_paused(Job *job);
*/
void job_user_resume(Job *job, Error **errp);
-/*
- * Drain any activities as required to ensure progress. This can be called in a
- * loop to synchronously complete a job.
- */
-void job_drain(Job *job);
-
/**
* Get the next element from the list of block jobs after @job, or the
* first one if @job is %NULL.
diff --git a/job.c b/job.c
index 28dd48f8a5..04409b40aa 100644
--- a/job.c
+++ b/job.c
@@ -523,16 +523,6 @@ void coroutine_fn job_sleep_ns(Job *job, int64_t ns)
job_pause_point(job);
}
-void job_drain(Job *job)
-{
- /* If job is !busy this kicks it into the next pause point. */
- job_enter(job);
-
- if (job->driver->drain) {
- job->driver->drain(job);
- }
-}
-
/* Assumes the block_job_mutex is held */
static bool job_timer_not_pending(Job *job)
{
@@ -991,7 +981,7 @@ int job_finish_sync(Job *job, void (*finish)(Job *, Error **errp), Error **errp)
}
AIO_WAIT_WHILE(job->aio_context,
- (job_drain(job), !job_is_completed(job)));
+ (job_enter(job), !job_is_completed(job)));
ret = (job_is_cancelled(job) && job->ret == 0) ? -ECANCELED : job->ret;
job_unref(job);
diff --git a/tests/test-bdrv-drain.c b/tests/test-bdrv-drain.c
index 374bef6bb2..fa0e6a648b 100644
--- a/tests/test-bdrv-drain.c
+++ b/tests/test-bdrv-drain.c
@@ -848,7 +848,6 @@ BlockJobDriver test_job_driver = {
.instance_size = sizeof(TestBlockJob),
.free = block_job_free,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
.run = test_job_run,
.complete = test_job_complete,
.prepare = test_job_prepare,
@@ -1574,7 +1573,6 @@ static const BlockJobDriver test_drop_backing_job_driver = {
.instance_size = sizeof(TestDropBackingBlockJob),
.free = block_job_free,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
.run = test_drop_backing_job_run,
.commit = test_drop_backing_job_commit,
}
@@ -1711,7 +1709,6 @@ static const BlockJobDriver test_simple_job_driver = {
.instance_size = sizeof(TestSimpleBlockJob),
.free = block_job_free,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
.run = test_simple_job_run,
.clean = test_simple_job_clean,
},
diff --git a/tests/test-block-iothread.c b/tests/test-block-iothread.c
index 926577b1f9..cfe30bab21 100644
--- a/tests/test-block-iothread.c
+++ b/tests/test-block-iothread.c
@@ -401,7 +401,6 @@ BlockJobDriver test_job_driver = {
.instance_size = sizeof(TestBlockJob),
.free = block_job_free,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
.run = test_job_run,
.complete = test_job_complete,
.prepare = test_job_prepare,
diff --git a/tests/test-blockjob-txn.c b/tests/test-blockjob-txn.c
index 7da9216d5b..8bd13b9949 100644
--- a/tests/test-blockjob-txn.c
+++ b/tests/test-blockjob-txn.c
@@ -72,7 +72,6 @@ static const BlockJobDriver test_block_job_driver = {
.instance_size = sizeof(TestBlockJob),
.free = block_job_free,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
.run = test_block_job_run,
.clean = test_block_job_clean,
},
diff --git a/tests/test-blockjob.c b/tests/test-blockjob.c
index 68a0819495..7844c9ffcb 100644
--- a/tests/test-blockjob.c
+++ b/tests/test-blockjob.c
@@ -22,7 +22,6 @@ static const BlockJobDriver test_block_job_driver = {
.instance_size = sizeof(BlockJob),
.free = block_job_free,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
},
};
@@ -196,7 +195,6 @@ static const BlockJobDriver test_cancel_driver = {
.instance_size = sizeof(CancelJob),
.free = block_job_free,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
.run = cancel_job_run,
.complete = cancel_job_complete,
},
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-27 18:05:34 +0000