tree fda31de04c0e47f9ddfe5b9ef4d0a17106233491
parent 5ebe6afaf0057ac3eaeb98defd5456894b446d22
author George Wang <xuw2015@gmail.com> 1432849174 +1000
committer Dave Chinner <david@fromorbit.com> 1432849174 +1000

xfs: use percpu_counter_read_positive for mp->m_icount

Function percpu_counter_read just return the current counter, which can be
negative. This will cause the checking of "allocated inode
counts <= m_maxicount" false positive. Use percpu_counter_read_positive can
solve this problem, and be consistent with the purpose to introduce percpu
mechanism to xfs.

Signed-off-by: George Wang <xuw2015@gmail.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>