[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v5 01/15] mirror: inherit supported write/zero flags
From: |
Anton Nefedov |
Subject: |
[Qemu-devel] [PATCH v5 01/15] mirror: inherit supported write/zero flags |
Date: |
Wed, 1 Nov 2017 18:43:54 +0300 |
Signed-off-by: Anton Nefedov <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
---
block/mirror.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/block/mirror.c b/block/mirror.c
index 307b639..19c8987 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -1064,6 +1064,11 @@ static void
bdrv_mirror_top_refresh_filename(BlockDriverState *bs, QDict *opts)
bdrv_refresh_filename(bs->backing->bs);
pstrcpy(bs->exact_filename, sizeof(bs->exact_filename),
bs->backing->bs->filename);
+ bs->supported_write_flags = BDRV_REQ_FUA &
+ bs->backing->bs->supported_write_flags;
+ bs->supported_zero_flags =
+ (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP) &
+ bs->backing->bs->supported_zero_flags;
}
static void bdrv_mirror_top_close(BlockDriverState *bs)
--
2.7.4
- [Qemu-devel] [PATCH v5 00/15] qcow2: space preallocation and COW improvements, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 01/15] mirror: inherit supported write/zero flags,
Anton Nefedov <=
- [Qemu-devel] [PATCH v5 02/15] blkverify: set supported write/zero flags, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 04/15] block: treat BDRV_REQ_ALLOCATE as serialising, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 03/15] block: introduce BDRV_REQ_ALLOCATE flag, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 05/15] file-posix: support BDRV_REQ_ALLOCATE, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 06/15] block: support BDRV_REQ_ALLOCATE in passthrough drivers, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 07/15] qcow2: move is_zero() up, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 08/15] qcow2: skip writing zero buffers to empty COW areas, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 10/15] qcow2: set inactive flag, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 09/15] qcow2: preallocation at image expand, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 13/15] qcow2: do not zero out clusters if already preallocated, Anton Nefedov, 2017/11/01