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[Qemu-devel] [PATCH 15/17] raw-posix: detect XFS unwritten extents
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 15/17] raw-posix: detect XFS unwritten extents |
Date: |
Wed, 3 Jul 2013 16:34:29 +0200 |
Signed-off-by: Paolo Bonzini <address@hidden>
---
block/raw-posix.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/block/raw-posix.c b/block/raw-posix.c
index d011cfd..1b41ea3 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -1128,6 +1128,9 @@ static int64_t coroutine_fn
raw_co_get_block_status(BlockDriverState *bs,
} else {
data = f.fe.fe_logical;
hole = f.fe.fe_logical + f.fe.fe_length;
+ if (f.fe.fe_flags & FIEMAP_EXTENT_UNWRITTEN) {
+ ret |= BDRV_BLOCK_ZERO;
+ }
}
#elif defined SEEK_HOLE && defined SEEK_DATA
--
1.8.2.1
- Re: [Qemu-devel] [PATCH 12/17] qemu-img: add a "map" subcommand, (continued)
[Qemu-devel] [PATCH 11/17] block: return get_block_status data and flags for formats, Paolo Bonzini, 2013/07/03
[Qemu-devel] [PATCH 14/17] raw-posix: return get_block_status data and flags, Paolo Bonzini, 2013/07/03
[Qemu-devel] [PATCH 13/17] block: use bdrv_has_zero_init to return BDRV_BLOCK_ZERO, Paolo Bonzini, 2013/07/03
[Qemu-devel] [PATCH 15/17] raw-posix: detect XFS unwritten extents,
Paolo Bonzini <=
[Qemu-devel] [PATCH 16/17] block: add default get_block_status implementation for protocols, Paolo Bonzini, 2013/07/03
[Qemu-devel] [PATCH 17/17] block: look for zero blocks in bs->file, Paolo Bonzini, 2013/07/03
Re: [Qemu-devel] [PATCH 00/17] Add qemu-img subcommand to dump file metadata, Stefan Hajnoczi, 2013/07/15