fsck.f2fs: introduce preen mode 2
As Michael reported:
after updating to f2fs-tools 1.12.0, a routine fsck of my file systems
took quite a while and output ten-thousands instances of the following
line:
> [FIX] (fsck_chk_inode_blk: 954) --> Regular: 0xXYZ reset i_gc_failures from 0x1 to 0x00
The reason is that:
We start to support reseting .i_gc_failures's value to zero in fsck since
91bb7b21f740 ("f2fs-tools: fix to reset i_gc_failures offline"), this is
because if .i_gc_failures continues increasing and exceed threshold, it
can make f2fs break atomic_write semantics during GC, so I added that
patch to avoid such condition.
But the problem here is even .i_gc_failures's value is one which was
initialized duing inode creation by old kernel, and it never be increased
by GC flow, we will still trigger such fix in fsck. I think it's not
necessary.
As Jaegeuk suggested, we introduce a new preen mode 2 to handle such
condition:
- 2: same as 0, but skip some checks for old kernel
Suggested-by: Jaegeuk Kim <jaegeuk@kernel.org>
Reported-by: Michael Laß <bevan@bi-co.net>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
3 files changed
