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apropos > Linux added an O_NOATIME !!Con 2016 - How I fixed UNIX atime! With 10 lines of code and feminism!!! By Valerie Aurora https://www.youtube.com/watch?

• phone8675309 4y ago
  I suspected this post was generated bot spam given the name of the convention and how most discussions about feminism go on the Internet but I have to say that the talk was interesting and I am glad I watched it. Thank you for posting it.
• cesarb 4y ago
  That talk is about the "relatime" mount option, not the O_NOATIME open() flag. The O_NOATIME open() flag was added following the semantics described in the glibc manual (https://www.gnu.org/software/libc/manual/html_node/Operating-Modes.html#index-O_005fNOATIME https://www.gnu.org/software/libc/manual/html_node/Operating... ); I don't know where these semantics came from, my guess (given that it is glibc and O_NOATIME is described as a GNU extension) is that these semantics came from Hurd, though I haven't checked. These semantics aren't ideal (you need extra code to retry without the flag if it fails with a permission error, or you have to open() without the flag and add it later with fcntl(), both cases requiring to an extra system call), if it were added today it probably would have simpler semantics. (Source: I wrote the patch which added O_NOATIME to the kernel, based on an older patch which didn't get in, see https://lkml.iu.edu/hypermail/linux/kernel/0406.1/0894.html https://lkml.iu.edu/hypermail/linux/kernel/0406.1/0894.html and https://lkml.iu.edu/hypermail/linux/kernel/9811.2/0118.html https://lkml.iu.edu/hypermail/linux/kernel/9811.2/0118.html)
• kwhitefoot 4y ago
  That was brilliant, Thanks for posting it!