From: Shuoran Liu <liushuoran@huawei.com>
Date: Tue, 29 Mar 2016 10:00:15 +0000 (+0800)
Subject: f2fs: retrieve IO write stat from the right place
X-Git-Tag: v4.6-rc3~33^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b2dde6fca37e947628b82ae8f35e183ff112d07c;p=platform%2Fkernel%2Flinux-exynos.git

f2fs: retrieve IO write stat from the right place

In the following patch,

    f2fs: split journal cache from curseg cache

journal cache is split from curseg cache. So IO write statistics should be
retrived from journal cache but not curseg->sum_blk. Otherwise, it will
get 0, and the stat is lost.

Signed-off-by: Shuoran Liu <liushuoran@huawei.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 5afb4a6..c1b1e99 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1470,7 +1470,7 @@ try_onemore:
 	seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE);
 	if (__exist_node_summaries(sbi))
 		sbi->kbytes_written =
-			le64_to_cpu(seg_i->sum_blk->journal.info.kbytes_written);
+			le64_to_cpu(seg_i->journal->info.kbytes_written);
 
 	build_gc_manager(sbi);