On Sun, Jul 05, 2020 at 05:18:58AM +0200, Jan Ziak wrote:
On Sun, Jul 5, 2020 at 5:12 AM Matthew Wilcox willy@infradead.org wrote:
You should probably take a look at io_uring. That has the level of complexity of this proposal and supports open/read/close along with many other opcodes.
Then glibc can implement readfile using io_uring and there is no need for a new single-file readfile syscall.
It could, sure. But there's also a value in having a simple interface to accomplish a simple task. Your proposed API added a very complex interface to satisfy needs that clearly aren't part of the problem space that Greg is looking to address.