[dm-devel] [PATCH] multipath: changes to NetApp's prioritizer
Christophe Varoqui
christophe.varoqui at gmail.com
Tue Apr 26 08:48:39 UTC 2011
On mar., 2011-04-26 at 16:38 +0800, yue wrote:
> which version of multipath?
upstream. you'd have to compile the multipath-tools git head from
git.kernel.org to test.
> my invironment is fedora12 multipath 0.4.9. multibus for netapp
> there is not improvment in throughput?
don't get you expectation too high though ... this patch is only a
rename from 'netapp' to 'ontap'. I can see no fonctional change except:
@@ -194,14 +194,14 @@ static int netapp_prio(const char *dev, int fd)
memset(&results, 0, sizeof (results));
rc = send_gva(dev, fd, 0x41, results, &results_size);
- if (rc == 0) {
+ if (rc >= 0) {
tot_len = results[0] << 24 | results[1] << 16 |
results[2] << 8 | results[3];
if (tot_len <= 8) {
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