qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
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

  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20170508141310.8674-9-pbonzini@redhat.com \
    --to=pbonzini@redhat.com \
    --cc=jcody@redhat.com \
    --cc=jsnow@redhat.com \
    --cc=qemu-block@nongnu.org \
    --cc=qemu-devel@nongnu.org \
    --cc=stefanha@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).