Re: [GIT PULL] ucounts: Count rlimits in each user namespace

[Eric W. Biederman]

Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> writes:

> Why the "sigpending < LONG_MAX" test in that
>
>         if (override_rlimit || (sigpending < LONG_MAX && sigpending <=
> task_rlimit(t, RLIMIT_SIGPENDING))) {
> thing?

On second look that sigpending < LONG_MAX check is necessary.  When
inc_rlimit_ucounts detects a problem it returns LONG_MAX.

So the check for LONG_MAX is the condensed check to see if there is a
problem in any other levels of the ucount hierarchy.

Eric