74 lines
2.7 KiB
Diff
74 lines
2.7 KiB
Diff
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From 9cc9e9657aad126502183fa4ceb9b962b55471cb Mon Sep 17 00:00:00 2001
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From: John Snow <jsnow@redhat.com>
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Date: Mon, 29 Jul 2019 16:35:55 -0400
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Subject: [PATCH] block/backup: hoist bitmap check into QMP interface
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This is nicer to do in the unified QMP interface that we have now,
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because it lets us use the right terminology back at the user.
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Signed-off-by: John Snow <jsnow@redhat.com>
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Reviewed-by: Max Reitz <mreitz@redhat.com>
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Message-id: 20190716000117.25219-5-jsnow@redhat.com
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Signed-off-by: John Snow <jsnow@redhat.com>
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---
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block/backup.c | 13 ++++---------
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blockdev.c | 10 ++++++++++
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2 files changed, 14 insertions(+), 9 deletions(-)
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diff --git a/block/backup.c b/block/backup.c
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index 59ac2c0396..cc19643b47 100644
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--- a/block/backup.c
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+++ b/block/backup.c
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@@ -565,6 +565,10 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
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assert(bs);
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assert(target);
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+ /* QMP interface protects us from these cases */
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+ assert(sync_mode != MIRROR_SYNC_MODE_INCREMENTAL);
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+ assert(sync_bitmap || sync_mode != MIRROR_SYNC_MODE_BITMAP);
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+
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if (bs == target) {
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error_setg(errp, "Source and target cannot be the same");
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return NULL;
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@@ -596,16 +600,7 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
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return NULL;
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}
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- /* QMP interface should have handled translating this to bitmap mode */
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- assert(sync_mode != MIRROR_SYNC_MODE_INCREMENTAL);
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-
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if (sync_mode == MIRROR_SYNC_MODE_BITMAP) {
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- if (!sync_bitmap) {
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- error_setg(errp, "must provide a valid bitmap name for "
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- "'%s' sync mode", MirrorSyncMode_str(sync_mode));
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- return NULL;
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- }
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-
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/* If we need to write to this bitmap, check that we can: */
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if (bitmap_mode != BITMAP_SYNC_MODE_NEVER &&
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bdrv_dirty_bitmap_check(sync_bitmap, BDRV_BITMAP_DEFAULT, errp)) {
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diff --git a/blockdev.c b/blockdev.c
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index efb69d343a..0a71a15fa2 100644
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--- a/blockdev.c
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+++ b/blockdev.c
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@@ -3508,6 +3508,16 @@ static BlockJob *do_backup_common(BackupCommon *backup,
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return NULL;
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}
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+ if ((backup->sync == MIRROR_SYNC_MODE_BITMAP) ||
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+ (backup->sync == MIRROR_SYNC_MODE_INCREMENTAL)) {
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+ /* done before desugaring 'incremental' to print the right message */
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+ if (!backup->has_bitmap) {
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+ error_setg(errp, "must provide a valid bitmap name for "
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+ "'%s' sync mode", MirrorSyncMode_str(backup->sync));
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+ return NULL;
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+ }
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+ }
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+
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if (backup->sync == MIRROR_SYNC_MODE_INCREMENTAL) {
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if (backup->has_bitmap_mode &&
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backup->bitmap_mode != BITMAP_SYNC_MODE_ON_SUCCESS) {
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--
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2.27.0
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