tree 7ebbb4e9fc2c4f6ec0035170d4736aecc00d2501
parent 61ace7fa2fff9c4b6641c506b6b3f1a9394a1b11
author Tejun Heo <tj@kernel.org> 1236317639 +0900
committer Tejun Heo <tj@kernel.org> 1236317639 +0900

percpu: use negative for auto for pcpu_setup_first_chunk() arguments

Impact: argument semantic cleanup

In pcpu_setup_first_chunk(), zero @unit_size and @dyn_size meant
auto-sizing.  It's okay for @unit_size as 0 doesn't make sense but 0
dynamic reserve size is valid.  Alos, if arch @dyn_size is calculated
from other parameters, it might end up passing in 0 @dyn_size and
malfunction when the size is automatically adjusted.

This patch makes both @unit_size and @dyn_size ssize_t and use -1 for
auto sizing.

Signed-off-by: Tejun Heo <tj@kernel.org>