[dm-devel] multipath: change the DEFAULT_MINIO for the request based multipath
Malahal Naineni
malahal at us.ibm.com
Tue Feb 1 09:51:37 UTC 2011
Christophe Varoqui [christophe.varoqui at gmail.com] wrote:
> That's because there are /etc/multipath.conf in the wild right now,
> created with non rq capable kernels. rr_min_io meant something then. It
> seems not fair to change the meaning of that tunable upon upgrade.
> People do cut-and-paste from old docs (corp or googled) and from peers
> systems ... this approach minimize the risk of killing the perf by
> accident. And I don't see downsides.
Agreed.
> dm_drv_get_rq (void)
> {
> unsigned int minv_dmrq[3] = {1, 1, 0};
> - unsigned int *v;
> -
> - v = zalloc(3);
> - if (!v)
> - return 0;
> + unsigned int version[3] = {0, 0, 0};
> + unsigned int * v = version;
You could just say 'unsigned int v[3] = {0, 0, 0};' and remove the extra
pointer variable.
> + unsigned int version[3] = {0, 0, 0};
> + unsigned int * v = version;
Same as above.
Looks good. Thank you.
--Malahal.
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