[PATCH 2/4]percpu_counter: use correct API

[Shaohua Li]

percpu_counter_sum_positive never returns negative, since there
is a negative check, I changed it to percpu_counter_sum.

Signed-off-by: Shaohua Li <shaohua.li@xxxxxxxxx>

---
 fs/ext4/balloc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux/fs/ext4/balloc.c
===================================================================
--- linux.orig/fs/ext4/balloc.c	2011-04-12 15:48:42.000000000 +0800
+++ linux/fs/ext4/balloc.c	2011-04-12 15:48:50.000000000 +0800
@@ -506,7 +506,7 @@ static int ext4_has_free_blocks(struct e
 	if (free_blocks - (nblocks + root_blocks + dirty_blocks) <
 						EXT4_FREEBLOCKS_WATERMARK) {
 		free_blocks  = percpu_counter_sum_positive(fbc);
-		dirty_blocks = percpu_counter_sum_positive(dbc);
+		dirty_blocks = percpu_counter_sum(dbc);
 		if (dirty_blocks < 0) {
 			printk(KERN_CRIT "Dirty block accounting "
 					"went wrong %lld\n",


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