Re: [f2fs-dev] [PATCH] inject.f2fs: fix injecting nat/sit journal in compact summary

On 5/30/26 20:30, liujinbao1 wrote:
> From: liujinbao1 <[email protected]>
> 
> When CP has CP_COMPACT_SUM_FLAG set, the nat/sit journal is stored in
> compact summary blocks at start_sum_block() rather than in the regular
> summary area. However, rewrite_nat_in_journal() and
> rewrite_sit_in_journal() only handled CP_UMOUNT_FLAG and the running
> state, missing the compact summary case.This caused the fault injection
> to fail.
> 
> Fix this by adding the CP_COMPACT_SUM_FLAG check before the existing
> CP_UMOUNT_FLAG check in both functions, writing the journal to the
> correct compact summary block location.
> 
> Test steps:
> 1. NAT journal injection (nid=4, quota file):
>   inject.f2fs --nat 0 --mb block_addr --nid 4 --val 12345 /dev/block/by-name/userdata
>   Before: blkaddr unchanged (308225)
>   After:  blkaddr = 12345
> 
> 2. SIT journal injection (segno=61075, CURSEG_COLD_DATA):
>   inject.f2fs --sit 0 --blk 0x1e1da00 --mb vblocks --val 123 /dev/block/by-name/userdata
>   Before: vblocks unchanged (0)
>   After:  vblocks = 123
> 
> Signed-off-by: Sheng Yong <[email protected]>
> Signed-off-by: liujinbao1 <[email protected]>

Reviewed-by: Chao Yu <[email protected]>

Thanks,


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