From eca616f8c1d6c581f3785f0ee3e2a3887e084273 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Mon, 15 Jun 2015 14:52:29 -0700 Subject: [PATCH] f2fs: avoid freed stat information The write_checkpoint can update stat information, so we should destroy the stat structure after it. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/super.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index a06b0b46fe69..da277100dc90 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -498,7 +498,6 @@ static void f2fs_put_super(struct super_block *sb) } kobject_del(&sbi->s_kobj); - f2fs_destroy_stats(sbi); stop_gc_thread(sbi); /* @@ -514,6 +513,9 @@ static void f2fs_put_super(struct super_block *sb) write_checkpoint(sbi, &cpc); } + /* write_checkpoint can update stat informaion */ + f2fs_destroy_stats(sbi); + /* * normally superblock is clean, so we need to release this. * In addition, EIO will skip do checkpoint, we need this as well.