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[Qemu-devel] [PATCH v3 18/19] block: add default get_block_status implem
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH v3 18/19] block: add default get_block_status implementation for protocols |
Date: |
Thu, 25 Jul 2013 16:23:16 +0200 |
Protocols return raw data, so you can assume the offsets to pass
through unchanged.
Reviewed-by: Eric Blake <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
block.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/block.c b/block.c
index fc1da56..8738937 100644
--- a/block.c
+++ b/block.c
@@ -3005,7 +3005,11 @@ static int64_t coroutine_fn
bdrv_co_get_block_status(BlockDriverState *bs,
if (!bs->drv->bdrv_co_get_block_status) {
*pnum = nb_sectors;
- return BDRV_BLOCK_DATA;
+ ret = BDRV_BLOCK_DATA;
+ if (bs->drv->protocol_name) {
+ ret |= BDRV_BLOCK_OFFSET_VALID | (sector_num * BDRV_SECTOR_SIZE);
+ }
+ return ret;
}
ret = bs->drv->bdrv_co_get_block_status(bs, sector_num, nb_sectors, pnum);
--
1.8.3.1
- Re: [Qemu-devel] [PATCH v3 13/19] qemu-img: add a "map" subcommand, (continued)
[Qemu-devel] [PATCH v3 14/19] docs, qapi: document qemu-img map, Paolo Bonzini, 2013/07/25
[Qemu-devel] [PATCH v3 15/19] block: use bdrv_has_zero_init to return BDRV_BLOCK_ZERO, Paolo Bonzini, 2013/07/25
[Qemu-devel] [PATCH v3 16/19] raw-posix: return get_block_status data and flags, Paolo Bonzini, 2013/07/25
[Qemu-devel] [PATCH v3 17/19] raw-posix: detect XFS unwritten extents, Paolo Bonzini, 2013/07/25
[Qemu-devel] [PATCH v3 18/19] block: add default get_block_status implementation for protocols,
Paolo Bonzini <=
[Qemu-devel] [PATCH v3 19/19] block: look for zero blocks in bs->file, Paolo Bonzini, 2013/07/25