linux-kernel - [PATCH] f2fs: fix to account preflush command for noflush

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Date:   Wed, 24 Oct 2018 17:24:10 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     <jaegeuk@...nel.org>
CC:     <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>, <chao@...nel.org>,
        Chao Yu <yuchao0@...wei.com>
Subject: [PATCH] f2fs: fix to account preflush command for noflush_merge mode

Previously, we only account preflush command for flush_merge mode,
so for noflush_merge mode, we can not know in-flight preflush
command count, fix it.

Signed-off-by: Chao Yu <yuchao0@...wei.com>
---
 fs/f2fs/segment.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index d0cc6330dd61..9f388098d174 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -666,7 +666,9 @@ int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino)
 		return 0;
 
 	if (!test_opt(sbi, FLUSH_MERGE)) {
+		atomic_inc(&fcc->issing_flush);
 		ret = submit_flush_wait(sbi, ino);
+		atomic_dec(&fcc->issing_flush);
 		atomic_inc(&fcc->issued_flush);
 		return ret;
 	}
-- 
2.18.0.rc1