Message ID | 20230216072821epcms2p35e1fecca382380723ac0031862687173@epcms2p3 |
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Thu, 16 Feb 2023 07:28:22 +0000 (GMT) Received: from epsmges2p4.samsung.com (unknown [182.195.36.69]) by epsnrtp1.localdomain (Postfix) with ESMTP id 4PHRPf40ryz4x9Pr; Thu, 16 Feb 2023 07:28:22 +0000 (GMT) X-AuditID: b6c32a48-1f7ff70000021624-37-63eddb1648e5 Received: from epcas2p1.samsung.com ( [182.195.41.53]) by epsmges2p4.samsung.com (Symantec Messaging Gateway) with SMTP id 0C.B8.05668.61BDDE36; Thu, 16 Feb 2023 16:28:22 +0900 (KST) Mime-Version: 1.0 Subject: [PATCH v2] f2fs: fix uninitialized skipped_gc_rwsem Reply-To: yonggil.song@samsung.com Sender: Yonggil Song <yonggil.song@samsung.com> From: Yonggil Song <yonggil.song@samsung.com> To: Chao Yu <chao@kernel.org>, "jaegeuk@kernel.org" <jaegeuk@kernel.org>, "linux-f2fs-devel@lists.sourceforge.net" <linux-f2fs-devel@lists.sourceforge.net>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "daehojeong@google.com" <daehojeong@google.com> CC: "stable@vger.kernel.org" <stable@vger.kernel.org>, "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>, Seokhwan Kim <sukka.kim@samsung.com>, Daejun Park <daejun7.park@samsung.com> X-Priority: 3 X-Content-Kind-Code: NORMAL X-CPGS-Detection: blocking_info_exchange X-Drm-Type: N,general X-Msg-Generator: Mail X-Msg-Type: PERSONAL X-Reply-Demand: N Message-ID: <20230216072821epcms2p35e1fecca382380723ac0031862687173@epcms2p3> Date: Thu, 16 Feb 2023 16:28:21 +0900 X-CMS-MailID: 20230216072821epcms2p35e1fecca382380723ac0031862687173 Content-Transfer-Encoding: 7bit Content-Type: text/plain; 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Series |
[v2] f2fs: fix uninitialized skipped_gc_rwsem
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Commit Message
Yonggil Song
Feb. 16, 2023, 7:28 a.m. UTC
When f2fs skipped a gc round during victim migration, there was a bug which
would skip all upcoming gc rounds unconditionally because skipped_gc_rwsem
was not initialized. It fixes the bug by correctly initializing the
skipped_gc_rwsem inside the gc loop.
Fixes: 3db1de0e582c ("f2fs: change the current atomic write way")
Signed-off-by: Yonggil Song <yonggil.song@samsung.com>
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index b22f49a6f128..81d326abaac1 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -1786,8 +1786,8 @@ int f2fs_gc(struct f2fs_sb_info *sbi, struct f2fs_gc_control *gc_control) prefree_segments(sbi)); cpc.reason = __get_cp_reason(sbi); - sbi->skipped_gc_rwsem = 0; gc_more: + sbi->skipped_gc_rwsem = 0; if (unlikely(!(sbi->sb->s_flags & SB_ACTIVE))) { ret = -EINVAL; goto stop;