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    Subject[PATCH 4.19 102/243] f2fs: fix to account preflush command for noflush_merge mode
    Date
    From: Chao Yu <yuchao0@huawei.com>

    [ Upstream commit a8075dc484cf10ebdb07bee2b17322fb0a846309 ]

    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@huawei.com>
    Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    fs/f2fs/segment.c | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
    index a807a8d5e38f0..0e3e590a250f7 100644
    --- a/fs/f2fs/segment.c
    +++ b/fs/f2fs/segment.c
    @@ -637,7 +637,9 @@ 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;
    }
    --
    2.20.1


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