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  1. Embed this notice
    James Morris (jmorris@social.kernel.org)'s status on Wednesday, 26-Jul-2023 06:21:43 JST James Morris James Morris
    Wrong answers only: what does this kernel code do?

    struct file *file = (struct file *)(v & ~3);
    In conversation Wednesday, 26-Jul-2023 06:21:43 JST from social.kernel.org permalink
    • Embed this notice
      Studio 8502 :verified: (mos_8502@oldbytes.space)'s status on Wednesday, 26-Jul-2023 06:41:14 JST Studio 8502 :verified: Studio 8502 :verified:
      in reply to

      @jmorris Frobnicates the reticulated splines.

      In conversation Wednesday, 26-Jul-2023 06:41:14 JST permalink
      James Morris likes this.
    • Embed this notice
      Arnd Bergmann (arnd@society.oftrolls.com)'s status on Wednesday, 26-Jul-2023 06:41:25 JST Arnd Bergmann Arnd Bergmann
      in reply to

      @jmorris this returns a pointer to the inode of the third open file descriptor of the current thread, i.e stdout.

      In conversation Wednesday, 26-Jul-2023 06:41:25 JST permalink
      James Morris likes this.
    • Embed this notice
      Kees Cook :tux: (kees@fosstodon.org)'s status on Wednesday, 26-Jul-2023 08:15:21 JST Kees Cook :tux: Kees Cook :tux:
      in reply to

      @jmorris Gives me a stroke.

      In conversation Wednesday, 26-Jul-2023 08:15:21 JST permalink
      James Morris likes this.
    • Embed this notice
      penguin42 (penguin42@mastodon.org.uk)'s status on Wednesday, 26-Jul-2023 08:15:27 JST penguin42 penguin42
      in reply to

      @jmorris Something truly wonderful on a 64bit host?

      In conversation Wednesday, 26-Jul-2023 08:15:27 JST permalink
      James Morris likes this.
    • Embed this notice
      Mans R (mansr@society.oftrolls.com)'s status on Wednesday, 26-Jul-2023 08:15:29 JST Mans R Mans R
      in reply to

      @jmorris It returns a file pointer with the world write and execute bits cleared.

      In conversation Wednesday, 26-Jul-2023 08:15:29 JST permalink
      James Morris likes this.
    • Embed this notice
      keithp (keithp@fosstodon.org)'s status on Friday, 28-Jul-2023 01:13:09 JST keithp keithp
      in reply to
      • Kees Cook :tux:

      @kees @jmorris He said "wrong answers only"

      In conversation Friday, 28-Jul-2023 01:13:09 JST permalink
      James Morris likes this.
    • Embed this notice
      James Morris (jmorris@social.kernel.org)'s status on Friday, 28-Jul-2023 01:14:07 JST James Morris James Morris
      in reply to
      • Arnd Bergmann
      @arnd officially the best answer.
      In conversation Friday, 28-Jul-2023 01:14:07 JST permalink
    • Embed this notice
      Jason Bowen 🇺🇦 (jbowen@mast.hpc.social)'s status on Friday, 28-Jul-2023 01:24:21 JST Jason Bowen 🇺🇦 Jason Bowen 🇺🇦
      in reply to

      @jmorris Gives you a file that's approximately 3 big.

      In conversation Friday, 28-Jul-2023 01:24:21 JST permalink
      James Morris likes this.
    • Embed this notice
      James Morris (jmorris@social.kernel.org)'s status on Friday, 28-Jul-2023 01:25:28 JST James Morris James Morris
      in reply to
      Bonus points for identifying the author of the code. Hint: his initials are LT.
      In conversation Friday, 28-Jul-2023 01:25:28 JST permalink

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