[Qemu-devel] [PATCH v2 06/16] block: do not parse BDRV_O_CACHE_WB in raw block drivers

[Jeff Cody]

Block drivers should always open the files in writeback mode (see commit
e1e9b0ac), so raw-posix/raw-win32 should not parse the BDRV_O_CACHE_WB
flag.

Signed-off-by: Jeff Cody <jc...@redhat.com>
---
 block/raw-posix.c | 3 ---
 block/raw-win32.c | 3 ---
 2 files changed, 6 deletions(-)

diff --git a/block/raw-posix.c b/block/raw-posix.c
index 7d3ac9d..4a1047c 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -202,9 +202,6 @@ static void raw_parse_flags(int bdrv_flags, int *open_flags)
     if ((bdrv_flags & BDRV_O_NOCACHE)) {
         *open_flags |= O_DIRECT;
     }
-    if (!(bdrv_flags & BDRV_O_CACHE_WB)) {
-        *open_flags |= O_DSYNC;
-    }
 }
 
 static int raw_set_aio(void **aio_ctx, int *use_aio, int bdrv_flags)
diff --git a/block/raw-win32.c b/block/raw-win32.c
index 335c06a..78c8306 100644
--- a/block/raw-win32.c
+++ b/block/raw-win32.c
@@ -92,9 +92,6 @@ static void raw_parse_flags(int flags, int *access_flags, 
DWORD *overlapped)
     if (flags & BDRV_O_NOCACHE) {
         *overlapped |= FILE_FLAG_NO_BUFFERING;
     }
-    if (!(flags & BDRV_O_CACHE_WB)) {
-        *overlapped |= FILE_FLAG_WRITE_THROUGH;
-    }
 }
 
 static int raw_open(BlockDriverState *bs, const char *filename, int flags)
-- 
1.7.11.4