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[Qemu-devel] [PULL 14/17] block/dirty-bitmaps: prohibit readonly bitmaps
From: |
John Snow |
Subject: |
[Qemu-devel] [PULL 14/17] block/dirty-bitmaps: prohibit readonly bitmaps for backups |
Date: |
Fri, 8 Mar 2019 15:28:55 -0500 |
drive and blockdev backup cannot use readonly bitmaps, because the
sync=incremental mechanism actually edits the bitmaps on success.
If you really want to do this operation, use a copied bitmap.
Signed-off-by: John Snow <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Reviewed-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Message-id: address@hidden
Signed-off-by: John Snow <address@hidden>
---
blockdev.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/blockdev.c b/blockdev.c
index 455ab806b2..c6c7a64bfc 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -3533,7 +3533,7 @@ static BlockJob *do_drive_backup(DriveBackup *backup,
JobTxn *txn,
bdrv_unref(target_bs);
goto out;
}
- if (bdrv_dirty_bitmap_check(bmap, BDRV_BITMAP_ALLOW_RO, errp)) {
+ if (bdrv_dirty_bitmap_check(bmap, BDRV_BITMAP_DEFAULT, errp)) {
goto out;
}
}
@@ -3643,7 +3643,7 @@ BlockJob *do_blockdev_backup(BlockdevBackup *backup,
JobTxn *txn,
error_setg(errp, "Bitmap '%s' could not be found", backup->bitmap);
goto out;
}
- if (bdrv_dirty_bitmap_check(bmap, BDRV_BITMAP_ALLOW_RO, errp)) {
+ if (bdrv_dirty_bitmap_check(bmap, BDRV_BITMAP_DEFAULT, errp)) {
goto out;
}
}
--
2.17.2
- [Qemu-devel] [PULL 00/17] Bitmaps patches, John Snow, 2019/03/08
- [Qemu-devel] [PULL 01/17] block/dirty-bitmap: add recording and busy properties, John Snow, 2019/03/08
- [Qemu-devel] [PULL 03/17] block/dirty-bitmap: remove set/reset assertions against enabled bit, John Snow, 2019/03/08
- [Qemu-devel] [PULL 04/17] block/dirty-bitmap: change semantics of enabled predicate, John Snow, 2019/03/08
- [Qemu-devel] [PULL 02/17] block/dirty-bitmaps: rename frozen predicate helper, John Snow, 2019/03/08
- [Qemu-devel] [PULL 05/17] nbd: change error checking order for bitmaps, John Snow, 2019/03/08
- [Qemu-devel] [PULL 14/17] block/dirty-bitmaps: prohibit readonly bitmaps for backups,
John Snow <=
- [Qemu-devel] [PULL 12/17] block/dirty-bitmap: add inconsistent status, John Snow, 2019/03/08
- [Qemu-devel] [PULL 13/17] block/dirty-bitmaps: add block_dirty_bitmap_check function, John Snow, 2019/03/08
- [Qemu-devel] [PULL 06/17] block/dirty-bitmap: explicitly lock bitmaps with successors, John Snow, 2019/03/08
- [Qemu-devel] [PULL 08/17] block/dirty-bitmaps: move comment block, John Snow, 2019/03/08
- [Qemu-devel] [PULL 09/17] blockdev: remove unused paio parameter documentation, John Snow, 2019/03/08
- [Qemu-devel] [PULL 07/17] block/dirty-bitmaps: unify qmp_locked and user_locked calls, John Snow, 2019/03/08
- [Qemu-devel] [PULL 16/17] block/dirty-bitmaps: disallow busy bitmaps as merge source, John Snow, 2019/03/08
- [Qemu-devel] [PULL 15/17] block/dirty-bitmaps: prohibit removing readonly bitmaps, John Snow, 2019/03/08
- [Qemu-devel] [PULL 11/17] block/dirty-bitmaps: add inconsistent bit, John Snow, 2019/03/08
- [Qemu-devel] [PULL 10/17] iotests: add busy/recording bit test to 124, John Snow, 2019/03/08