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block/block-copy: split block_copy_set_callbacks function

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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>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2019-10-01 16:14:07 +03:00 committed by Max Reitz
parent 843670f30f
commit 0f4b02b73e
3 changed files with 28 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
block/backup.c
View File

@ -478,8 +478,7 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
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 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
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);

24
block/block-copy.c
View File

@ -66,12 +66,10 @@ void block_copy_state_free(BlockCopyState *s)
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 @@ BlockCopyState *block_copy_state_new(
.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 @@ fail:
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

13
include/block/block-copy.h
View File

@ -66,12 +66,17 @@ typedef struct BlockCopyState {
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);