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[Qemu-devel] [PATCH v4 20/21] block: add default get_block_status implem
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH v4 20/21] block: add default get_block_status implementation for protocols |
Date: |
Thu, 29 Aug 2013 16:00:20 +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 cf52489..9299605 100644
--- a/block.c
+++ b/block.c
@@ -3020,7 +3020,11 @@ 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
- [Qemu-devel] [PATCH v4 13/21] block: return get_block_status data and flags for formats, (continued)
- [Qemu-devel] [PATCH v4 13/21] block: return get_block_status data and flags for formats, Paolo Bonzini, 2013/08/29
- [Qemu-devel] [PATCH v4 11/21] block: introduce bdrv_get_block_status API, Paolo Bonzini, 2013/08/29
- [Qemu-devel] [PATCH v4 12/21] block: define get_block_status return value, Paolo Bonzini, 2013/08/29
- [Qemu-devel] [PATCH v4 14/21] block: use bdrv_has_zero_init to return BDRV_BLOCK_ZERO, Paolo Bonzini, 2013/08/29
- [Qemu-devel] [PATCH v4 15/21] block: return BDRV_BLOCK_ZERO past end of backing file, Paolo Bonzini, 2013/08/29
- [Qemu-devel] [PATCH v4 16/21] qemu-img: add a "map" subcommand, Paolo Bonzini, 2013/08/29
- [Qemu-devel] [PATCH v4 17/21] docs, qapi: document qemu-img map, Paolo Bonzini, 2013/08/29
- [Qemu-devel] [PATCH v4 18/21] raw-posix: return get_block_status data and flags, Paolo Bonzini, 2013/08/29
- [Qemu-devel] [PATCH v4 19/21] raw-posix: report unwritten extents as zero, Paolo Bonzini, 2013/08/29
- [Qemu-devel] [PATCH v4 20/21] block: add default get_block_status implementation for protocols,
Paolo Bonzini <=
- [Qemu-devel] [PATCH v4 21/21] block: look for zero blocks in bs->file, Paolo Bonzini, 2013/08/29