From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: qemu-block@nongnu.org, jcody@redhat.com, jsnow@redhat.com,
stefanha@redhat.com
Subject: [Qemu-devel] [PATCH 08/11] blockjob: group BlockJob transaction functions together
Date: Mon, 8 May 2017 16:13:07 +0200 [thread overview]
Message-ID: <20170508141310.8674-9-pbonzini@redhat.com> (raw)
In-Reply-To: <20170508141310.8674-1-pbonzini@redhat.com>
Yet another pure code movement patch, preparing for the next change.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
blockjob.c | 128 ++++++++++++++++++++++++++++++-------------------------------
1 file changed, 64 insertions(+), 64 deletions(-)
diff --git a/blockjob.c b/blockjob.c
index 9a5204346f..68efed9042 100644
--- a/blockjob.c
+++ b/blockjob.c
@@ -91,6 +91,39 @@ BlockJob *block_job_get(const char *id)
return NULL;
}
+BlockJobTxn *block_job_txn_new(void)
+{
+ BlockJobTxn *txn = g_new0(BlockJobTxn, 1);
+ QLIST_INIT(&txn->jobs);
+ txn->refcnt = 1;
+ return txn;
+}
+
+static void block_job_txn_ref(BlockJobTxn *txn)
+{
+ txn->refcnt++;
+}
+
+void block_job_txn_unref(BlockJobTxn *txn)
+{
+ if (txn && --txn->refcnt == 0) {
+ g_free(txn);
+ }
+}
+
+void block_job_txn_add_job(BlockJobTxn *txn, BlockJob *job)
+{
+ if (!txn) {
+ return;
+ }
+
+ assert(!job->txn);
+ job->txn = txn;
+
+ QLIST_INSERT_HEAD(&txn->jobs, job, txn_list);
+ block_job_txn_ref(txn);
+}
+
static void block_job_pause(BlockJob *job)
{
job->pause_count++;
@@ -317,6 +350,37 @@ static void block_job_cancel_async(BlockJob *job)
job->cancelled = true;
}
+static int block_job_finish_sync(BlockJob *job,
+ void (*finish)(BlockJob *, Error **errp),
+ Error **errp)
+{
+ Error *local_err = NULL;
+ int ret;
+
+ assert(blk_bs(job->blk)->job == job);
+
+ block_job_ref(job);
+
+ finish(job, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ block_job_unref(job);
+ return -EBUSY;
+ }
+ /* block_job_drain calls block_job_enter, and it should be enough to
+ * induce progress until the job completes or moves to the main thread.
+ */
+ while (!job->deferred_to_main_loop && !job->completed) {
+ block_job_drain(job);
+ }
+ while (!job->completed) {
+ aio_poll(qemu_get_aio_context(), true);
+ }
+ ret = (job->cancelled && job->ret == 0) ? -ECANCELED : job->ret;
+ block_job_unref(job);
+ return ret;
+}
+
static void block_job_completed_txn_abort(BlockJob *job)
{
AioContext *ctx;
@@ -440,37 +504,6 @@ void block_job_cancel(BlockJob *job)
}
}
-static int block_job_finish_sync(BlockJob *job,
- void (*finish)(BlockJob *, Error **errp),
- Error **errp)
-{
- Error *local_err = NULL;
- int ret;
-
- assert(blk_bs(job->blk)->job == job);
-
- block_job_ref(job);
-
- finish(job, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- block_job_unref(job);
- return -EBUSY;
- }
- /* block_job_drain calls block_job_enter, and it should be enough to
- * induce progress until the job completes or moves to the main thread.
- */
- while (!job->deferred_to_main_loop && !job->completed) {
- block_job_drain(job);
- }
- while (!job->completed) {
- aio_poll(qemu_get_aio_context(), true);
- }
- ret = (job->cancelled && job->ret == 0) ? -ECANCELED : job->ret;
- block_job_unref(job);
- return ret;
-}
-
/* A wrapper around block_job_cancel() taking an Error ** parameter so it may be
* used with block_job_finish_sync() without the need for (rather nasty)
* function pointer casts there. */
@@ -883,36 +916,3 @@ void block_job_defer_to_main_loop(BlockJob *job,
aio_bh_schedule_oneshot(qemu_get_aio_context(),
block_job_defer_to_main_loop_bh, data);
}
-
-BlockJobTxn *block_job_txn_new(void)
-{
- BlockJobTxn *txn = g_new0(BlockJobTxn, 1);
- QLIST_INIT(&txn->jobs);
- txn->refcnt = 1;
- return txn;
-}
-
-static void block_job_txn_ref(BlockJobTxn *txn)
-{
- txn->refcnt++;
-}
-
-void block_job_txn_unref(BlockJobTxn *txn)
-{
- if (txn && --txn->refcnt == 0) {
- g_free(txn);
- }
-}
-
-void block_job_txn_add_job(BlockJobTxn *txn, BlockJob *job)
-{
- if (!txn) {
- return;
- }
-
- assert(!job->txn);
- job->txn = txn;
-
- QLIST_INSERT_HEAD(&txn->jobs, job, txn_list);
- block_job_txn_ref(txn);
-}
--
2.12.2
next prev parent reply other threads:[~2017-05-08 14:13 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-08 14:12 [Qemu-devel] [PATCH v2 00/11] Preparation for block job mutex Paolo Bonzini
2017-05-08 14:13 ` [Qemu-devel] [PATCH 01/11] blockjob: remove unnecessary check Paolo Bonzini
2017-05-09 16:23 ` Jeff Cody
2017-05-08 14:13 ` [Qemu-devel] [PATCH 02/11] blockjob: remove iostatus_reset callback Paolo Bonzini
2017-05-09 16:26 ` Jeff Cody
2017-05-08 14:13 ` [Qemu-devel] [PATCH 03/11] blockjob: introduce block_job_early_fail Paolo Bonzini
2017-05-09 16:37 ` Jeff Cody
2017-05-08 14:13 ` [Qemu-devel] [PATCH 04/11] blockjob: introduce block_job_pause/resume_all Paolo Bonzini
2017-05-09 17:00 ` Jeff Cody
2017-05-08 14:13 ` [Qemu-devel] [PATCH 05/11] blockjob: separate monitor and blockjob APIs Paolo Bonzini
2017-05-09 17:06 ` Jeff Cody
2017-05-09 17:09 ` Paolo Bonzini
2017-05-08 14:13 ` [Qemu-devel] [PATCH 06/11] blockjob: move iostatus reset inside block_job_user_resume Paolo Bonzini
2017-05-09 17:10 ` Jeff Cody
2017-05-08 14:13 ` [Qemu-devel] [PATCH 07/11] blockjob: introduce block_job_cancel_async, check iostatus invariants Paolo Bonzini
2017-05-08 14:13 ` Paolo Bonzini [this message]
2017-05-08 14:13 ` [Qemu-devel] [PATCH 09/11] blockjob: strengthen a bit test-blockjob-txn Paolo Bonzini
2017-05-08 14:13 ` [Qemu-devel] [PATCH 10/11] blockjob: reorganize block_job_completed_txn_abort Paolo Bonzini
2017-05-08 14:13 ` [Qemu-devel] [PATCH 11/11] blockjob: use deferred_to_main_loop to indicate the coroutine has ended Paolo Bonzini
2017-05-21 13:17 ` [Qemu-devel] [PATCH v2 00/11] Preparation for block job mutex Paolo Bonzini
2017-05-22 9:09 ` [Qemu-devel] [Qemu-block] " Stefan Hajnoczi
2017-05-23 1:57 ` [Qemu-devel] " Jeff Cody
-- strict thread matches above, loose matches on Subject: below --
2017-04-19 14:42 [Qemu-devel] [PATCH for 2.10 " Paolo Bonzini
2017-04-19 14:42 ` [Qemu-devel] [PATCH 08/11] blockjob: group BlockJob transaction functions together Paolo Bonzini
2017-04-24 23:46 ` John Snow
2017-05-04 10:53 ` Stefan Hajnoczi
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