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[Qemu-devel] [PATCH v4 01/15] mirror: inherit supported write/zero flags
From: |
Anton Nefedov |
Subject: |
[Qemu-devel] [PATCH v4 01/15] mirror: inherit supported write/zero flags |
Date: |
Tue, 1 Aug 2017 17:18:58 +0300 |
Signed-off-by: Anton Nefedov <address@hidden>
---
block/mirror.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/block/mirror.c b/block/mirror.c
index d46dace..7e539f1 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -1056,6 +1056,11 @@ 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 v4 00/15] qcow2: space preallocation and COW improvements, Anton Nefedov, 2017/08/01
- [Qemu-devel] [PATCH v4 04/15] block: treat BDRV_REQ_ALLOCATE as serialising, Anton Nefedov, 2017/08/01
- [Qemu-devel] [PATCH v4 08/15] qcow2: set inactive flag, Anton Nefedov, 2017/08/01
- [Qemu-devel] [PATCH v4 07/15] qcow2: preallocation at image expand, Anton Nefedov, 2017/08/01
- [Qemu-devel] [PATCH v4 01/15] mirror: inherit supported write/zero flags,
Anton Nefedov <=
- [Qemu-devel] [PATCH v4 06/15] block: support BDRV_REQ_ALLOCATE in passthrough drivers, Anton Nefedov, 2017/08/01
- [Qemu-devel] [PATCH v4 05/15] file-posix: support BDRV_REQ_ALLOCATE, Anton Nefedov, 2017/08/01
- [Qemu-devel] [PATCH v4 09/15] qcow2: truncate preallocated space, Anton Nefedov, 2017/08/01
- [Qemu-devel] [PATCH v4 03/15] block: introduce BDRV_REQ_ALLOCATE flag, Anton Nefedov, 2017/08/01
- [Qemu-devel] [PATCH v4 02/15] blkverify: set supported write/zero flags, Anton Nefedov, 2017/08/01