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    Subject[PATCH 6.0 123/862] f2fs: fix wrong continue condition in GC
    Date
    From: Jaegeuk Kim <jaegeuk@kernel.org>

    commit 605b0a778aa2599aa902ae639b8e9937c74b869b upstream.

    We should decrease the frozen counter.

    Cc: stable@vger.kernel.org
    Fixes: 325163e9892b ("f2fs: add gc_urgent_high_remaining sysfs node")
    Reviewed-by: Chao Yu <chao@kernel.org>
    Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    fs/f2fs/gc.c | 12 ++++--------
    1 file changed, 4 insertions(+), 8 deletions(-)

    --- a/fs/f2fs/gc.c
    +++ b/fs/f2fs/gc.c
    @@ -97,14 +97,10 @@ static int gc_thread_func(void *data)
    */
    if (sbi->gc_mode == GC_URGENT_HIGH) {
    spin_lock(&sbi->gc_urgent_high_lock);
    - if (sbi->gc_urgent_high_limited) {
    - if (!sbi->gc_urgent_high_remaining) {
    - sbi->gc_urgent_high_limited = false;
    - spin_unlock(&sbi->gc_urgent_high_lock);
    - sbi->gc_mode = GC_NORMAL;
    - continue;
    - }
    - sbi->gc_urgent_high_remaining--;
    + if (sbi->gc_urgent_high_limited &&
    + !sbi->gc_urgent_high_remaining--) {
    + sbi->gc_urgent_high_limited = false;
    + sbi->gc_mode = GC_NORMAL;
    }
    spin_unlock(&sbi->gc_urgent_high_lock);
    }

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