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[Qemu-devel] [PATCH v3 3/7] block: copy enable_write_cache in bdrv_appen
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH v3 3/7] block: copy enable_write_cache in bdrv_append |
Date: |
Wed, 6 Jun 2012 00:04:51 +0200 |
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 <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
block.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/block.c b/block.c
index 7538112..9bff401 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;
--
1.7.10.1
- [Qemu-devel] [PATCH v3 0/7] Manual writethrough cache and cache mode toggle, Paolo Bonzini, 2012/06/05
- [Qemu-devel] [PATCH v3 1/7] block: flush in writethrough mode after writes, Paolo Bonzini, 2012/06/05
- [Qemu-devel] [PATCH v3 2/7] savevm: flush after saving vm state, Paolo Bonzini, 2012/06/05
- [Qemu-devel] [PATCH v3 3/7] block: copy enable_write_cache in bdrv_append,
Paolo Bonzini <=
- [Qemu-devel] [PATCH v3 4/7] block: add bdrv_set_enable_write_cache, Paolo Bonzini, 2012/06/05
- [Qemu-devel] [PATCH v3 5/7] block: always open drivers in writeback mode, Paolo Bonzini, 2012/06/05
- [Qemu-devel] [PATCH v3 6/7] ide: support enable/disable write cache, Paolo Bonzini, 2012/06/05
- [Qemu-devel] [PATCH v3 7/7] qcow2: always operate caches in writeback mode, Paolo Bonzini, 2012/06/05
- Re: [Qemu-devel] [PATCH v3 0/7] Manual writethrough cache and cache mode toggle, Stefan Hajnoczi, 2012/06/08
- Re: [Qemu-devel] [PATCH v3 0/7] Manual writethrough cache and cache mode toggle, Stefan Hajnoczi, 2012/06/08