search for: 503,14

...- return boolean_method (script, method, handle, 0); + const char *script; + struct sh_handle *h = handle; + + if (h->can_flush >= 0) + return h->can_flush; + + script = get_script (method); + return h->can_flush = boolean_method (script, method, handle, 0); } int @@ -481,8 +503,14 @@ int sh_can_zero (void *handle) { const char *method = "can_zero"; - const char *script = get_script (method); - return boolean_method (script, method, handle, 0); + const char *script; + struct sh_handle *h = handle; + + if (h->can_zero >= 0) + return h->can_ze...

I like this change. I think we were overloading the config_complete method before to do two different things (complete configuration; do any allocation/housekeeping necessary before we can start serving). The only questions in my mind are whether we want this before 1.18, and whether the name ("get_ready") is a good one. Rich.

When I added .can_FOO caching in 1.16, I missed the case that the sh plugin itself was calling .can_flush twice in some situations (in order to default .can_fua). Then right after, I regressed it to call .can_zero twice (in order to default .can_fast_zero). I also missed that .thread_model could use better caching, because at the time, I did not add testsuite coverage. Fix that now. Eric Blake

From: Zhang Xiantao <xiantao.zhang@intel.com> With virtual EPT support, L1 hyerpvisor can use EPT hardware for L2 guest''s memory virtualization. In this way, L2 guest''s performance can be improved sharply. According to our testing, some benchmarks can show > 5x performance gain. Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com> Zhang Xiantao (11):