> o If sock_writepage is called on path via device without SG support,
> the cooked up sock_sendmsg() call needs to switch to KERNEL_DS.
> Discovered and fixed by Ingo Molnar.
Good catch.
> This does show that not too many people are testing this all that
> thoroughly :-) Basically, any sys_sendfile() over TCP using a network
> card other than loopback/3c59x/sunhme/acenic would fail with -EFAULT
> or even worse a kernel crash depending upon architecture.
Hey now, I was seeing it but I hadn't got around to chasing the bug down. :)
Anton
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