From: Chao Yu <yuchao0@huawei.com>
To: <jaegeuk@kernel.org>
Cc: <linux-f2fs-devel@lists.sourceforge.net>,
<linux-kernel@vger.kernel.org>, <chao@kernel.org>,
Chao Yu <yuchao0@huawei.com>
Subject: [PATCH 2/2] f2fs: fix memory leak of percpu counter in fill_super()
Date: Wed, 5 Sep 2018 14:54:02 +0800 [thread overview]
Message-ID: <20180905065402.52945-2-yuchao0@huawei.com> (raw)
In-Reply-To: <20180905065402.52945-1-yuchao0@huawei.com>
In fill_super -> init_percpu_info, we should destroy percpu counter
in error path, otherwise memory allcoated for percpu counter will
leak.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
---
fs/f2fs/super.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 627b9a959714..cc4bd264111e 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2668,8 +2668,12 @@ static int init_percpu_info(struct f2fs_sb_info *sbi)
if (err)
return err;
- return percpu_counter_init(&sbi->total_valid_inode_count, 0,
+ err = percpu_counter_init(&sbi->total_valid_inode_count, 0,
GFP_KERNEL);
+ if (err)
+ percpu_counter_destroy(&sbi->alloc_valid_block_count);
+
+ return err;
}
#ifdef CONFIG_BLK_DEV_ZONED
--
2.18.0.rc1
prev parent reply other threads:[~2018-09-05 6:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-05 6:54 [PATCH 1/2] f2fs: fix memory leak of write_io in fill_super() Chao Yu
2018-09-05 6:54 ` Chao Yu [this message]
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