[Bug-tar] Re: [PATCH] tar: live within system-supplied limits on file descriptors

[Jim Meyering]

Paul Eggert wrote:
...
> diff --git a/NEWS b/NEWS
...
>  Tar now checks for inconsistencies caused when a file system is
> -modified while tar is creating an archive.  The new checks are
> -implemented via the openat, fstatat, and readlinkat calls standardized
> -by POSIX.1-2008.  On an older system that lacks these calls, tar
> -emulates them at some cost in efficiency and reliability.
> +modified while tar is creating an archive.  In the new approach, tar
> +maintains a cache of file descriptors to directories, so it uses more
> +file descriptors before, but it gracefully adjusts to system limits on

s/before/than before/

> +the number of file descriptors.  The new checks are implemented via
...

Sounds good!
I haven't looked at the details, though.