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block/backup: move write_flags calculation inside backup_job_create

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This is logic-less refactoring, which simplifies further patch, as
we'll need write_flags for backup-top filter creation and backup-top
should be created before block job creation.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20191001131409.14202-3-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 16:14:06 +03:00 committed by Max Reitz
parent a6ffe1998c
commit 843670f30f
1 changed files with 15 additions and 15 deletions
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30
block/backup.c
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@ -446,20 +446,6 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
goto error;
}
/* job->len is fixed, so we can't allow resize */
job = block_job_create(job_id, &backup_job_driver, txn, bs, 0, BLK_PERM_ALL,
speed, creation_flags, cb, opaque, errp);
if (!job) {
goto error;
}
job->source_bs = bs;
job->on_source_error = on_source_error;
job->on_target_error = on_target_error;
job->sync_mode = sync_mode;
job->sync_bitmap = sync_bitmap;
job->bitmap_mode = bitmap_mode;
/*
* If source is in backing chain of target assume that target is going to be
* used for "image fleecing", i.e. it should represent a kind of snapshot of
@ -477,6 +463,20 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
write_flags = (bdrv_chain_contains(target, bs) ? BDRV_REQ_SERIALISING : 0) |
(compress ? BDRV_REQ_WRITE_COMPRESSED : 0),
/* job->len is fixed, so we can't allow resize */
job = block_job_create(job_id, &backup_job_driver, txn, bs, 0, BLK_PERM_ALL,
speed, creation_flags, cb, opaque, errp);
if (!job) {
goto error;
}
job->source_bs = bs;
job->on_source_error = on_source_error;
job->on_target_error = on_target_error;
job->sync_mode = sync_mode;
job->sync_bitmap = sync_bitmap;
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);
@ -485,11 +485,11 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
}
job->cluster_size = cluster_size;
job->len = len;
/* Required permissions are already taken by block-copy-state target */
block_job_add_bdrv(&job->common, "target", target, 0, BLK_PERM_ALL,
&error_abort);
job->len = len;
return &job->common;