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[Qemu-devel] [PATCH v5 20/21] block: add default get_block_status implem
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH v5 20/21] block: add default get_block_status implementation for protocols |
Date: |
Wed, 4 Sep 2013 19:00:37 +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 6df387c..18cdfe6 100644
--- a/block.c
+++ b/block.c
@@ -3074,7 +3074,11 @@ 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 v5 11/21] block: introduce bdrv_get_block_status API, (continued)
- [Qemu-devel] [PATCH v5 11/21] block: introduce bdrv_get_block_status API, Paolo Bonzini, 2013/09/04
- [Qemu-devel] [PATCH v5 12/21] block: define get_block_status return value, Paolo Bonzini, 2013/09/04
- [Qemu-devel] [PATCH v5 13/21] block: return get_block_status data and flags for formats, Paolo Bonzini, 2013/09/04
- [Qemu-devel] [PATCH v5 09/21] qemu-img: always probe the input image for allocated sectors, Paolo Bonzini, 2013/09/04
- [Qemu-devel] [PATCH v5 14/21] block: use bdrv_has_zero_init to return BDRV_BLOCK_ZERO, Paolo Bonzini, 2013/09/04
- [Qemu-devel] [PATCH v5 16/21] qemu-img: add a "map" subcommand, Paolo Bonzini, 2013/09/04
- [Qemu-devel] [PATCH v5 15/21] block: return BDRV_BLOCK_ZERO past end of backing file, Paolo Bonzini, 2013/09/04
- [Qemu-devel] [PATCH v5 17/21] docs, qapi: document qemu-img map, Paolo Bonzini, 2013/09/04
- [Qemu-devel] [PATCH v5 18/21] raw-posix: return get_block_status data and flags, Paolo Bonzini, 2013/09/04
- [Qemu-devel] [PATCH v5 19/21] raw-posix: report unwritten extents as zero, Paolo Bonzini, 2013/09/04
- [Qemu-devel] [PATCH v5 20/21] block: add default get_block_status implementation for protocols,
Paolo Bonzini <=
- [Qemu-devel] [PATCH v5 21/21] block: look for zero blocks in bs->file, Paolo Bonzini, 2013/09/04
- Re: [Qemu-devel] [PATCH v5 00/21] Add qemu-img subcommand to dump file metadata, Stefan Hajnoczi, 2013/09/05