Re: [RFC PATCH v2 40/48] sunrpc: Use sendmsg(MSG_SPLICE_PAGES) rather then sendpage

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Chuck Lever III <chuck.lever@xxxxxxxxxx> wrote:

> It seems to me that you could eliminate the kernel_sendpage()
> consumer here in svc_tcp_sendmsg() without also replacing the
> kernel_sendmsg() calls. That would be a conservative step-wise
> approach which would carry less risk, and would accomplish
> your stated goal without more radical surgery.

Note that only the marker is sent with kernel_sendmsg() in the unmodified
code; the head and tail are sent with svc_tcp_send_kvec()... which uses
kernel_sendpage() which needs to be changed in my patchset.  I can make it do
individual sendmsg calls for all those for now.

David




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