Messages in this thread | | | Date | Fri, 18 Oct 2002 15:51:36 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [PATCH] sys_epoll system call interface to /dev/epoll |
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On Fri, 18 Oct 2002, Davide Libenzi wrote: > > Linus, yesterday I was sugesting Hanna to use most of the existing code > and to make : > > int sys_epoll_create(int maxfds); > > to actually return an fd. Basically during this function call the code > allocates a file*, initialize it, allocates a free fd, maps the file* to > the fd, creates the vma* for the shared events area between the kernel and > user space, maps allocated kernel pages to the vma*, install the vma* and > returns the fd.
But that's what her patch infrastructure seems to do. It's not just epoll_create(), it's all the other ioctl's too (unlink, remove etc). One queston is whether there is one epoll system call (that multiplexes, like in Hanna's patch) or many. I personally don't like multiplexing system calls - the system call number _is_ a multiplexor, I don't see the point of having multiple levels.
Linus
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