commit 2a4830110b90deb4ee99b1ab8c8ebb120f27c0c8
author Seth Jennings <sjenning@linux.vnet.ibm.com> Fri Dec 30 10:42:15 2011 -0600
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Wed Feb 08 14:14:14 2012 -0800
tree 642f3ddca90439ff7fff2b76474319de2525807c
parent a9d3c9e3c575ee09c905e07ae7cc1d52e2548d05

staging: zcache: fix serialization bug in zv stats

In a multithreaded workload, the zv_curr_dist_counts
and zv_cumul_dist_counts statistics are being corrupted
because the increments and decrements in zv_create
and zv_free are not atomic.

This patch converts these statistics and their corresponding
increments/decrements/reads to atomic operations.

Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>