tree 0295e1ed29794a8e804c4e28a3ea9e72777e533b
parent b884e25784f62a1c740d2e4c1ce19cb89644e986
author Andrew Morton <akpm@osdl.org> 1141797331 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1141856041 -0800

[PATCH] percpu_counter_sum()

Implement percpu_counter_sum().  This is a more accurate but slower version of
percpu_counter_read_positive().

We need this for Alex's speedup-ext3_statfs patch and for the nr_file
accounting fix.  Otherwise these things would be too inaccurate on large CPU
counts.

Cc: Ravikiran G Thirumalai <kiran@scalex86.org>
Cc: Alex Tomas <alex@clusterfs.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>