> + if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) {
> + ehca_err(&shca->ib_device, "Can't query port properties");
> + ret = -EINVAL;
> + goto modify_port1;
> + }
> +
> + cap = (rblock->capability_mask | props->set_port_cap_mask)
> + & ~props->clr_port_cap_mask;
> +
> + hret = hipz_h_modify_port(shca->ipz_hca_handle, port,
> + cap, props->init_type, port_modify_mask);
Is this thread-safe? What if two different bits are set at the same
time from two different threads? It seems that both calls could get
the same result from hipz_h_query_port(), and then the second call to
hipz_h_modify_port() would overwrite the first call.
You could look at the implementation in mthca to see the locking I
used there.
- R.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
