From: Paolo Bonzini <pbonz...@redhat.com>
Remove use of block_job_pause/resume from outside blockjob.c, thus
making them static. The new functions are used by the block layer,
so place them in blockjob_int.h.
Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
Reviewed-by: John Snow <js...@redhat.com>
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
Reviewed-by: Jeff Cody <jc...@redhat.com>
Message-id: 20170508141310.8674-5-pbonz...@redhat.com
Signed-off-by: Jeff Cody <jc...@redhat.com>
---
block/io.c | 19 ++------
blockjob.c | 114 ++++++++++++++++++++++++++-----------------
include/block/blockjob.h | 16 ------
include/block/blockjob_int.h | 14 ++++++
4 files changed, 86 insertions(+), 77 deletions(-)
diff --git a/block/io.c b/block/io.c
index fdd7485..ed31810 100644
--- a/block/io.c
+++ b/block/io.c
@@ -26,6 +26,7 @@
#include "trace.h"
#include "sysemu/block-backend.h"
#include "block/blockjob.h"
+#include "block/blockjob_int.h"
#include "block/block_int.h"
#include "qemu/cutils.h"
#include "qapi/error.h"
@@ -301,16 +302,9 @@ void bdrv_drain_all_begin(void)
bool waited = true;
BlockDriverState *bs;
BdrvNextIterator it;
- BlockJob *job = NULL;
GSList *aio_ctxs = NULL, *ctx;
- while ((job = block_job_next(job))) {
- AioContext *aio_context = blk_get_aio_context(job->blk);
-
- aio_context_acquire(aio_context);
- block_job_pause(job);
- aio_context_release(aio_context);
- }
+ block_job_pause_all();
for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) {
AioContext *aio_context = bdrv_get_aio_context(bs);
@@ -354,7 +348,6 @@ void bdrv_drain_all_end(void)
{
BlockDriverState *bs;
BdrvNextIterator it;
- BlockJob *job = NULL;
for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) {
AioContext *aio_context = bdrv_get_aio_context(bs);
@@ -365,13 +358,7 @@ void bdrv_drain_all_end(void)
aio_context_release(aio_context);
}
- while ((job = block_job_next(job))) {
- AioContext *aio_context = blk_get_aio_context(job->blk);
-
- aio_context_acquire(aio_context);
- block_job_resume(job);
- aio_context_release(aio_context);
- }
+ block_job_resume_all();
}
void bdrv_drain_all(void)
diff --git a/blockjob.c b/blockjob.c
index 5a722c3..85ad610 100644
--- a/blockjob.c
+++ b/blockjob.c
@@ -55,36 +55,6 @@ struct BlockJobTxn {
static QLIST_HEAD(, BlockJob) block_jobs = QLIST_HEAD_INITIALIZER(block_jobs);
-static char *child_job_get_parent_desc(BdrvChild *c)
-{
- BlockJob *job = c->opaque;
- return g_strdup_printf("%s job '%s'",
- BlockJobType_lookup[job->driver->job_type],
- job->id);
-}
-
-static const BdrvChildRole child_job = {
- .get_parent_desc = child_job_get_parent_desc,
- .stay_at_node = true,
-};
-
-static void block_job_drained_begin(void *opaque)
-{
- BlockJob *job = opaque;
- block_job_pause(job);
-}
-
-static void block_job_drained_end(void *opaque)
-{
- BlockJob *job = opaque;
- block_job_resume(job);
-}
-
-static const BlockDevOps block_job_dev_ops = {
- .drained_begin = block_job_drained_begin,
- .drained_end = block_job_drained_end,
-};
-
BlockJob *block_job_next(BlockJob *job)
{
if (!job) {
@@ -106,6 +76,21 @@ BlockJob *block_job_get(const char *id)
return NULL;
}
+static void block_job_pause(BlockJob *job)
+{
+ job->pause_count++;
+}
+
+static void block_job_resume(BlockJob *job)
+{
+ assert(job->pause_count > 0);
+ job->pause_count--;
+ if (job->pause_count) {
+ return;
+ }
+ block_job_enter(job);
+}
+
static void block_job_ref(BlockJob *job)
{
++job->refcnt;
@@ -171,6 +156,36 @@ static void block_job_detach_aio_context(void *opaque)
block_job_unref(job);
}
+static char *child_job_get_parent_desc(BdrvChild *c)
+{
+ BlockJob *job = c->opaque;
+ return g_strdup_printf("%s job '%s'",
+ BlockJobType_lookup[job->driver->job_type],
+ job->id);
+}
+
+static const BdrvChildRole child_job = {
+ .get_parent_desc = child_job_get_parent_desc,
+ .stay_at_node = true,
+};
+
+static void block_job_drained_begin(void *opaque)
+{
+ BlockJob *job = opaque;
+ block_job_pause(job);
+}
+
+static void block_job_drained_end(void *opaque)
+{
+ BlockJob *job = opaque;
+ block_job_resume(job);
+}
+
+static const BlockDevOps block_job_dev_ops = {
+ .drained_begin = block_job_drained_begin,
+ .drained_end = block_job_drained_end,
+};
+
void block_job_remove_all_bdrv(BlockJob *job)
{
GSList *l;
@@ -471,11 +486,6 @@ void block_job_complete(BlockJob *job, Error **errp)
job->driver->complete(job, errp);
}
-void block_job_pause(BlockJob *job)
-{
- job->pause_count++;
-}
-
void block_job_user_pause(BlockJob *job)
{
job->user_paused = true;
@@ -520,16 +530,6 @@ void coroutine_fn block_job_pause_point(BlockJob *job)
}
}
-void block_job_resume(BlockJob *job)
-{
- assert(job->pause_count > 0);
- job->pause_count--;
- if (job->pause_count) {
- return;
- }
- block_job_enter(job);
-}
-
void block_job_user_resume(BlockJob *job)
{
if (job && job->user_paused && job->pause_count > 0) {
@@ -723,6 +723,30 @@ static void block_job_event_completed(BlockJob *job, const
char *msg)
&error_abort);
}
+void block_job_pause_all(void)
+{
+ BlockJob *job = NULL;
+ while ((job = block_job_next(job))) {
+ AioContext *aio_context = blk_get_aio_context(job->blk);
+
+ aio_context_acquire(aio_context);
+ block_job_pause(job);
+ aio_context_release(aio_context);
+ }
+}
+
+void block_job_resume_all(void)
+{
+ BlockJob *job = NULL;
+ while ((job = block_job_next(job))) {
+ AioContext *aio_context = blk_get_aio_context(job->blk);
+
+ aio_context_acquire(aio_context);
+ block_job_resume(job);
+ aio_context_release(aio_context);
+ }
+}
+
void block_job_event_ready(BlockJob *job)
{
job->ready = true;
diff --git a/include/block/blockjob.h b/include/block/blockjob.h
index 9e906f7..09c7c69 100644
--- a/include/block/blockjob.h
+++ b/include/block/blockjob.h
@@ -235,14 +235,6 @@ void block_job_complete(BlockJob *job, Error **errp);
BlockJobInfo *block_job_query(BlockJob *job, Error **errp);
/**
- * block_job_pause:
- * @job: The job to be paused.
- *
- * Asynchronously pause the specified job.
- */
-void block_job_pause(BlockJob *job);
-
-/**
* block_job_user_pause:
* @job: The job to be paused.
*
@@ -260,14 +252,6 @@ void block_job_user_pause(BlockJob *job);
bool block_job_user_paused(BlockJob *job);
/**
- * block_job_resume:
- * @job: The job to be resumed.
- *
- * Resume the specified job. Must be paired with a preceding block_job_pause.
- */
-void block_job_resume(BlockJob *job);
-
-/**
* block_job_user_resume:
* @job: The job to be resumed.
*
diff --git a/include/block/blockjob_int.h b/include/block/blockjob_int.h
index 45cdfd4..4f2d2ac 100644
--- a/include/block/blockjob_int.h
+++ b/include/block/blockjob_int.h
@@ -156,6 +156,20 @@ void block_job_sleep_ns(BlockJob *job, QEMUClockType type,
int64_t ns);
void block_job_yield(BlockJob *job);
/**
+ * block_job_pause_all:
+ *
+ * Asynchronously pause all jobs.
+ */
+void block_job_pause_all(void);
+
+/**
+ * block_job_resume_all:
+ *
+ * Resume all block jobs. Must be paired with a preceding block_job_pause_all.
+ */
+void block_job_resume_all(void);
+
+/**
* block_job_early_fail:
* @bs: The block device.
*
--
2.9.3
