linux-kernel - [PATCH 6.0 123/862] f2fs: fix wrong continue condition in GC

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Message-Id: <20221019083255.387516069@linuxfoundation.org>
Date:   Wed, 19 Oct 2022 10:23:30 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Chao Yu <chao@...nel.org>,
        Jaegeuk Kim <jaegeuk@...nel.org>
Subject: [PATCH 6.0 123/862] f2fs: fix wrong continue condition in GC

From: Jaegeuk Kim <jaegeuk@...nel.org>

commit 605b0a778aa2599aa902ae639b8e9937c74b869b upstream.

We should decrease the frozen counter.

Cc: stable@...r.kernel.org
Fixes: 325163e9892b ("f2fs: add gc_urgent_high_remaining sysfs node")
Reviewed-by: Chao Yu <chao@...nel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.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);
 		}