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[Qemu-block] [PATCH v11 01/10] mirror: inherit supported write/zero flag
From: |
Anton Nefedov |
Subject: |
[Qemu-block] [PATCH v11 01/10] mirror: inherit supported write/zero flags |
Date: |
Tue, 18 Dec 2018 07:57:30 +0000 |
Signed-off-by: Anton Nefedov <address@hidden>
Reviewed-by: Alberto Garcia <address@hidden>
Reviewed-by: Vladimir Sementsov-Ogievskiy <address@hidden>
---
block/mirror.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/block/mirror.c b/block/mirror.c
index ab59ad77e8..be52c9be9c 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -1529,8 +1529,12 @@ static void mirror_start_job(const char *job_id,
BlockDriverState *bs,
mirror_top_bs->implicit = true;
}
mirror_top_bs->total_sectors = bs->total_sectors;
- mirror_top_bs->supported_write_flags = BDRV_REQ_WRITE_UNCHANGED;
- mirror_top_bs->supported_zero_flags = BDRV_REQ_WRITE_UNCHANGED;
+ mirror_top_bs->supported_write_flags = BDRV_REQ_WRITE_UNCHANGED |
+ (BDRV_REQ_FUA & bs->supported_write_flags);
+ mirror_top_bs->supported_zero_flags = BDRV_REQ_WRITE_UNCHANGED |
+ ((BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP)
+ & bs->supported_zero_flags);
+
bs_opaque = g_new0(MirrorBDSOpaque, 1);
mirror_top_bs->opaque = bs_opaque;
bdrv_set_aio_context(mirror_top_bs, bdrv_get_aio_context(bs));
--
2.17.1
- [Qemu-block] [PATCH v11 00/10] qcow2: cluster space preallocation, Anton Nefedov, 2018/12/18
- [Qemu-block] [PATCH v11 01/10] mirror: inherit supported write/zero flags,
Anton Nefedov <=
- [Qemu-block] [PATCH v11 02/10] blkverify: set supported write/zero flags, Anton Nefedov, 2018/12/18
- [Qemu-block] [PATCH v11 03/10] quorum: set supported write flags, Anton Nefedov, 2018/12/18
- [Qemu-block] [PATCH v11 06/10] file-posix: reset fallocate-related flags without CONFIG_FALLOCATE*, Anton Nefedov, 2018/12/18
- [Qemu-block] [PATCH v11 04/10] block: introduce BDRV_REQ_ALLOCATE flag, Anton Nefedov, 2018/12/18
- [Qemu-block] [PATCH v11 05/10] block: treat BDRV_REQ_ALLOCATE as serialising, Anton Nefedov, 2018/12/18
- [Qemu-block] [PATCH v11 08/10] block: support BDRV_REQ_ALLOCATE in passthrough drivers, Anton Nefedov, 2018/12/18
- [Qemu-block] [PATCH v11 07/10] file-posix: support BDRV_REQ_ALLOCATE, Anton Nefedov, 2018/12/18