From: Al Viro Date: Fri, 28 Nov 2014 18:40:20 +0000 (-0500) Subject: ip: convert tcp_sendmsg() to iov_iter primitives X-Git-Tag: fixes-v4.0-rc1~150^2~61^2~10 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=57be5bdad759b9dde8b0d0cc630782a1a4ac4b9f;p=pandora-kernel.git ip: convert tcp_sendmsg() to iov_iter primitives patch is actually smaller than it seems to be - most of it is unindenting the inner loop body in tcp_sendmsg() itself... the bit in tcp_input.c is going to get reverted very soon - that's what memcpy_from_msg() will become, but not in this commit; let's keep it reasonably contained... There's one potentially subtle change here: in case of short copy from userland, mainline tcp_send_syn_data() discards the skb it has allocated and falls back to normal path, where we'll send as much as possible after rereading the same data again. This patch trims SYN+data skb instead - that way we don't need to copy from the same place twice. Signed-off-by: Al Viro --- Reading git-diff-tree failed