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[Qemu-devel] [PATCH v13 03/20] block: Don't require BLK_PERM_CONSISTENT_
From: |
Fam Zheng |
Subject: |
[Qemu-devel] [PATCH v13 03/20] block: Don't require BLK_PERM_CONSISTENT_READ when unsafe open |
Date: |
Thu, 20 Apr 2017 15:52:20 +0800 |
Signed-off-by: Fam Zheng <address@hidden>
---
block.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/block.c b/block.c
index f5182d8..ac0527a 100644
--- a/block.c
+++ b/block.c
@@ -2372,7 +2372,9 @@ static BlockDriverState *bdrv_open_inherit(const char
*filename,
goto fail;
}
if (file_bs != NULL) {
- file = blk_new(BLK_PERM_CONSISTENT_READ, BLK_PERM_ALL);
+ file = blk_new(flags & BDRV_O_UNSAFE_READ ?
+ 0 : BLK_PERM_CONSISTENT_READ,
+ BLK_PERM_ALL);
blk_insert_bs(file, file_bs, &local_err);
bdrv_unref(file_bs);
if (local_err) {
--
2.9.3
- [Qemu-devel] [PATCH v13 00/20] block: Image locking series, Fam Zheng, 2017/04/20
- [Qemu-devel] [PATCH v13 01/20] block: Introduce BDRV_O_UNSAFE_READ, Fam Zheng, 2017/04/20
- [Qemu-devel] [PATCH v13 02/20] block: Drop consistent read perm if opened unsafe, Fam Zheng, 2017/04/20
- [Qemu-devel] [PATCH v13 03/20] block: Don't require BLK_PERM_CONSISTENT_READ when unsafe open,
Fam Zheng <=
- [Qemu-devel] [PATCH v13 04/20] qemu-img: Add --unsafe-read option to subcommands, Fam Zheng, 2017/04/20
- [Qemu-devel] [PATCH v13 06/20] qemu-io: Add --unsafe-read option, Fam Zheng, 2017/04/20
- [Qemu-devel] [PATCH v13 05/20] qemu-img: Update documentation for --unsafe-read, Fam Zheng, 2017/04/20
- [Qemu-devel] [PATCH v13 08/20] iotests: 046: Prepare for image locking, Fam Zheng, 2017/04/20
- [Qemu-devel] [PATCH v13 07/20] iotests: 030: Prepare for image locking, Fam Zheng, 2017/04/20
- [Qemu-devel] [PATCH v13 09/20] iotests: 055: Don't attach the target image already for drive-backup, Fam Zheng, 2017/04/20
- [Qemu-devel] [PATCH v13 11/20] iotests: 087: Don't attach test image twice, Fam Zheng, 2017/04/20
- [Qemu-devel] [PATCH v13 10/20] iotests: 085: Avoid image locking conflict, Fam Zheng, 2017/04/20