Zhang Qilong f1acf7e693 f2fs: Fix the race condition of resize flag between resizefs
[ Upstream commit 28fc4e9077ce59ab28c89c20dc6be5154473218f ]

Because the set/clear SBI_IS_RESIZEFS flag not between any locks,
In the following case:
  thread1			thread2
   ->ioctl(resizefs)
    ->set RESIZEFS flag		 ->ioctl(resizefs)
    ...                   	  ->set RESIZEFS flag
    ->clear RESIZEFS flag
    				  ->resizefs stream
				    # No RESIZEFS flag in the stream

Also before freeze_super, the resizefs not started, we should not set
the SBI_IS_RESIZEFS flag.

So move the set/clear SBI_IS_RESIZEFS flag between the cp_mutex and
gc_lock.

Fixes: b4b10061ef98 ("f2fs: refactor resize_fs to avoid meta updates in progress")
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-14 10:15:47 +01:00
..
2020-10-16 11:11:22 -07:00
2021-09-18 13:40:15 +02:00
2022-11-25 17:45:56 +01:00
2023-01-14 10:15:22 +01:00
2022-06-09 10:21:16 +02:00
2023-01-04 11:39:23 +01:00