Message ID | 1344521241-22897-4-git-send-email-pbonzini@redhat.com |
---|---|
State | New |
Headers | show |
diff --git a/blockdev.c b/blockdev.c index 8669142..7c83baa 100644 --- a/blockdev.c +++ b/blockdev.c @@ -377,6 +377,7 @@ DriveInfo *drive_init(QemuOpts *opts, int default_to_scsi) } } + bdrv_flags |= BDRV_O_CACHE_WB; if ((buf = qemu_opt_get(opts, "cache")) != NULL) { if (bdrv_parse_cache_flags(buf, &bdrv_flags) != 0) { error_report("invalid cache option");
Now all major device models (IDE, SCSI, virtio) can choose between writethrough and writeback at run-time, and virtio will even revert to writethrough if the guest is not capable of sending flushes. So we can change the default to writeback at last. Tested, for lack of a better idea, with a breakpoint on bdrv_open and all cache choices one by one. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> --- blockdev.c | 1 + 1 file modificato, 1 inserzione(+)