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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2007-10-16 23:25:45 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 08:42:44 -0700
commitbf1d89c81352f6eca72d0c10cfee3dba29ef5efb (patch)
tree4154acea12a0273ffbc3eafe39530b2e25aa4ed5 /lib/percpu_counter.c
parentlib: percpu_counter_sum_positive (diff)
downloadlinux-dev-bf1d89c81352f6eca72d0c10cfee3dba29ef5efb.tar.xz
linux-dev-bf1d89c81352f6eca72d0c10cfee3dba29ef5efb.zip
lib: percpu_count_sum()
Provide an accurate version of percpu_counter_read. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
-rw-r--r--lib/percpu_counter.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c
index b0d80ea22a33..3b0ed80c1efd 100644
--- a/lib/percpu_counter.c
+++ b/lib/percpu_counter.c
@@ -52,7 +52,7 @@ EXPORT_SYMBOL(__percpu_counter_add);
* Add up all the per-cpu counts, return the result. This is a more accurate
* but much slower version of percpu_counter_read_positive()
*/
-s64 percpu_counter_sum_positive(struct percpu_counter *fbc)
+s64 __percpu_counter_sum(struct percpu_counter *fbc)
{
s64 ret;
int cpu;
@@ -64,9 +64,9 @@ s64 percpu_counter_sum_positive(struct percpu_counter *fbc)
ret += *pcount;
}
spin_unlock(&fbc->lock);
- return ret < 0 ? 0 : ret;
+ return ret;
}
-EXPORT_SYMBOL(percpu_counter_sum_positive);
+EXPORT_SYMBOL(__percpu_counter_sum);
void percpu_counter_init(struct percpu_counter *fbc, s64 amount)
{