问题
Where I can get sendfile function sources? I can't find it in kernel sources...
回答1:
In the Linux Cross Reference
回答2:
Since linux-2.6.23 sendfile() is implemented using the more generic splice() framework. You will find the splice() implementation in fs/splice.c under your kernel source tree.
The sendfile() implementation itself is in fs/read_write.c.
来源：https://stackoverflow.com/questions/4483311/linux-sendfile-source