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authorPaolo Bonzini <pbonzini@redhat.com>2012-06-06 00:04:51 +0200
committerKevin Wolf <kwolf@redhat.com>2012-06-15 14:03:43 +0200
commitc4a248a138028bee63a099410c79b428db0c4779 (patch)
treec4f1e565b89cd8df4cd52cf532165b068f213999 /block.c
parentad492c92447ae29d0c3a691f0ae357155cce12fe (diff)
block: copy enable_write_cache in bdrv_append
Because the guest will be able to flip enable_write_cache, the actual state may not match what is used to open the new snapshot. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block.c')
-rw-r--r--block.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/block.c b/block.c
index 753811288a..9bff401200 100644
--- a/block.c
+++ b/block.c
@@ -1000,6 +1000,8 @@ void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top)
tmp.buffer_alignment = bs_top->buffer_alignment;
tmp.copy_on_read = bs_top->copy_on_read;
+ tmp.enable_write_cache = bs_top->enable_write_cache;
+
/* i/o timing parameters */
tmp.slice_time = bs_top->slice_time;
tmp.slice_start = bs_top->slice_start;