Subj : [$] Reconsidering O_CREAT|O_DIRECTORY
To   : All
From : LWN.net
Date : Fri Jul 31 2026 06:40:09

Linux provides a system call (mkdir())
to create a directory, and a few variants of
open() that can open a directory.  There is, however, no
system call in Linux that can create and open a directory in a single,
race-free call.   Jori Koolstra has been working on remedying that
situation, most recently by repurposing a set of open() flags that currently
return an error.  There are, however, concerns that show just how hard it
can be to create user-space interfaces that do not present traps for
application developers.

https://lwn.net/Articles/1085617/
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