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Subject[PATCH 01/12] f2fs: avoid freed stat information
Date
The write_checkpoint can update stat information, so we should destroy the stat
structure after it.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
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 a06b0b4..da27710 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.
--
2.1.1


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