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SUSE:SLE-12-SP4:GA
xen.1589
ioemu-bdrv-open-CACHE_WB.patch
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File ioemu-bdrv-open-CACHE_WB.patch of Package xen.1589
Index: xen-4.2.0-testing/tools/qemu-xen-traditional-dir-remote/hw/xen_blktap.c =================================================================== --- xen-4.2.0-testing.orig/tools/qemu-xen-traditional-dir-remote/hw/xen_blktap.c +++ xen-4.2.0-testing/tools/qemu-xen-traditional-dir-remote/hw/xen_blktap.c @@ -247,8 +247,11 @@ static int open_disk(struct td_state *s, drv = blktap_drivers[i].drv; DPRINTF("%s driver specified\n", drv ? drv->format_name : "No"); - /* Open the image */ - if (bdrv_open2(bs, path, flags, drv) != 0) { + /* Open the image + * Use BDRV_O_CACHE_WB for write-through caching, + * no flags for write-back caching + */ + if (bdrv_open2(bs, path, flags|BDRV_O_CACHE_WB, drv) != 0) { fprintf(stderr, "Could not open image file %s\n", path); return -ENOMEM; }
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