[v5] block layer: split block APIs in global state and I/O

[PATCH v5 14/31] include/block/blockjob.h: global state API

Emanuele Giuseppe Esposito posted 31 patches 4 years, 2 months ago

Diff against v2 v3 v4 v6 v7 v8
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Maintainers: Eduardo Habkost <ehabkost@redhat.com>, "Daniel P. Berrangé" <berrange@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, Markus Armbruster <armbru@redhat.com>, Juan Quintela <quintela@redhat.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Kevin Wolf <kwolf@redhat.com>, Eric Blake <eblake@redhat.com>, John Snow <jsnow@redhat.com>, Fam Zheng <fam@euphon.net>, Hanna Reitz <hreitz@redhat.com>, Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>

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[PATCH v5 14/31] include/block/blockjob.h: global state API

Posted by Emanuele Giuseppe Esposito 4 years, 2 months ago

blockjob functions run always under the BQL lock.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 include/block/blockjob.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/block/blockjob.h b/include/block/blockjob.h
index d200f33c10..fa0c3f7a47 100644
--- a/include/block/blockjob.h
+++ b/include/block/blockjob.h
@@ -77,6 +77,13 @@ typedef struct BlockJob {
     GSList *nodes;
 } BlockJob;
 
+/*
+ * Global state (GS) API. These functions run under the BQL lock.
+ *
+ * See include/block/block-global-state.h for more information about
+ * the GS API.
+ */
+
 /**
  * block_job_next:
  * @job: A block job, or %NULL.
@@ -158,6 +165,8 @@ BlockJobInfo *block_job_query(BlockJob *job, Error **errp);
  */
 void block_job_iostatus_reset(BlockJob *job);
 
+/* Common functions that are neither I/O nor Global State */
+
 /**
  * block_job_is_internal:
  * @job: The job to determine if it is user-visible or not.
-- 
2.27.0