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[Qemu-devel] [PATCH 1.2 3/7] block: always open protocol in writeback mo
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 1.2 3/7] block: always open protocol in writeback mode |
Date: |
Tue, 22 May 2012 18:17:14 +0200 |
Formats are entirely in charge of flushes for metadata writes. For
guest-initiated writes, a writethrough cache is faked in the block layer.
Signed-off-by: Paolo Bonzini <address@hidden>
---
block.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/block.c b/block.c
index 7add33c..43b3de6 100644
--- a/block.c
+++ b/block.c
@@ -661,7 +661,7 @@ static int bdrv_open_common(BlockDriverState *bs, const
char *filename,
if (drv->bdrv_file_open) {
ret = drv->bdrv_file_open(bs, filename, open_flags);
} else {
- ret = bdrv_file_open(&bs->file, filename, open_flags);
+ ret = bdrv_file_open(&bs->file, filename, open_flags |
BDRV_O_CACHE_WB);
if (ret >= 0) {
ret = drv->bdrv_open(bs, open_flags);
}
--
1.7.1
[Qemu-devel] [PATCH 1.2 4/7] block: copy enable_write_cache in bdrv_append, Paolo Bonzini, 2012/05/22
[Qemu-devel] [PATCH 1.2 5/7] block: add bdrv_set_enable_write_cache, Paolo Bonzini, 2012/05/22
[Qemu-devel] [PATCH 1.2 7/7] qcow2: always operate caches in writeback mode, Paolo Bonzini, 2012/05/22
[Qemu-devel] [PATCH 1.2 6/7] ide: support enable/disable write cache, Paolo Bonzini, 2012/05/22