commit 0f4b02b73e71cb761bfedcef180c5f10812f2953
author Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Tue Oct 01 16:14:07 2019 +0300
committer Max Reitz <mreitz@redhat.com> Thu Oct 10 10:56:18 2019 +0200
tree c89335a3fb9e016dbf09591c1c0bcdbf2bb37bce
parent 843670f30f35935cfd7781b6a49c258f22261b1d

block/block-copy: split block_copy_set_callbacks function

Split block_copy_set_callbacks out of block_copy_state_new. It's needed
for further commit: block-copy will use BdrvChildren of backup-top
filter, so it will be created from backup-top filter creation function.
But callbacks will still belong to backup job and will be set in
separate.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20191001131409.14202-4-vsementsov@virtuozzo.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>

block/backup.c

diff --git a/block/backup.c b/block/backup.c
index b5b7939..1057ed0 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -478,8 +478,7 @@
     job->bitmap_mode = bitmap_mode;
 
     job->bcs = block_copy_state_new(bs, target, cluster_size, write_flags,
-                                    backup_progress_bytes_callback,
-                                    backup_progress_reset_callback, job, errp);
+                                    errp);
     if (!job->bcs) {
         goto error;
     }
@@ -487,6 +486,9 @@
     job->cluster_size = cluster_size;
     job->len = len;
 
+    block_copy_set_callbacks(job->bcs, backup_progress_bytes_callback,
+                             backup_progress_reset_callback, job);
+
     /* Required permissions are already taken by block-copy-state target */
     block_job_add_bdrv(&job->common, "target", target, 0, BLK_PERM_ALL,
                        &error_abort);

block/block-copy.c

diff --git a/block/block-copy.c b/block/block-copy.c
index 61e5ea5..fcb112d 100644
--- a/block/block-copy.c
+++ b/block/block-copy.c
@@ -66,12 +66,10 @@
     g_free(s);
 }
 
-BlockCopyState *block_copy_state_new(
-        BlockDriverState *source, BlockDriverState *target,
-        int64_t cluster_size, BdrvRequestFlags write_flags,
-        ProgressBytesCallbackFunc progress_bytes_callback,
-        ProgressResetCallbackFunc progress_reset_callback,
-        void *progress_opaque, Error **errp)
+BlockCopyState *block_copy_state_new(BlockDriverState *source,
+                                     BlockDriverState *target,
+                                     int64_t cluster_size,
+                                     BdrvRequestFlags write_flags, Error **errp)
 {
     BlockCopyState *s;
     int ret;
@@ -95,9 +93,6 @@
         .cluster_size = cluster_size,
         .len = bdrv_dirty_bitmap_size(copy_bitmap),
         .write_flags = write_flags,
-        .progress_bytes_callback = progress_bytes_callback,
-        .progress_reset_callback = progress_reset_callback,
-        .progress_opaque = progress_opaque,
     };
 
     s->copy_range_size = QEMU_ALIGN_DOWN(MIN(blk_get_max_transfer(s->source),
@@ -144,6 +139,17 @@
     return NULL;
 }
 
+void block_copy_set_callbacks(
+        BlockCopyState *s,
+        ProgressBytesCallbackFunc progress_bytes_callback,
+        ProgressResetCallbackFunc progress_reset_callback,
+        void *progress_opaque)
+{
+    s->progress_bytes_callback = progress_bytes_callback;
+    s->progress_reset_callback = progress_reset_callback;
+    s->progress_opaque = progress_opaque;
+}
+
 /*
  * Copy range to target with a bounce buffer and return the bytes copied. If
  * error occurred, return a negative error number

include/block/block-copy.h

diff --git a/include/block/block-copy.h b/include/block/block-copy.h
index 962f910..340d856 100644
--- a/include/block/block-copy.h
+++ b/include/block/block-copy.h
@@ -66,12 +66,17 @@
     void *progress_opaque;
 } BlockCopyState;
 
-BlockCopyState *block_copy_state_new(
-        BlockDriverState *source, BlockDriverState *target,
-        int64_t cluster_size, BdrvRequestFlags write_flags,
+BlockCopyState *block_copy_state_new(BlockDriverState *source,
+                                     BlockDriverState *target,
+                                     int64_t cluster_size,
+                                     BdrvRequestFlags write_flags,
+                                     Error **errp);
+
+void block_copy_set_callbacks(
+        BlockCopyState *s,
         ProgressBytesCallbackFunc progress_bytes_callback,
         ProgressResetCallbackFunc progress_reset_callback,
-        void *progress_opaque, Error **errp);
+        void *progress_opaque);
 
 void block_copy_state_free(BlockCopyState *s);