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xen_disk: remove syncwrite option

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This patch removes a dead option.

The same can be achieved removing BDRV_O_NOCACHE and BDRV_O_CACHE_WB
from the flags passed to bdrv_open.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
This commit is contained in:
Stefano Stabellini
2012-05-17 10:43:33 +00:00
parent 95d5d75ede
commit ba1dffed63
1 changed files with 1 additions and 7 deletions
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hw/xen_disk.c
+1 -7
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@@ -48,7 +48,6 @@
/* ------------------------------------------------------------- */
static int syncwrite = 0;
static int batch_maps = 0;
static int max_requests = 32;
@@ -189,15 +188,10 @@ static int ioreq_parse(struct ioreq *ioreq)
ioreq->presync = 1;
return 0;
}
if (!syncwrite) {
ioreq->presync = ioreq->postsync = 1;
}
ioreq->presync = ioreq->postsync = 1;
/* fall through */
case BLKIF_OP_WRITE:
ioreq->prot = PROT_READ; /* from memory */
if (syncwrite) {
ioreq->postsync = 1;
}
break;
default:
xen_be_printf(&blkdev->xendev, 0, "error: unknown operation (%d)\n",