On 2022/4/23 2:05, Niels Dossche wrote:
There are multiple calculations and reads of fields of sbi that should be protected by stat_lock. As stat_lock is not used to read these values in statfs, this can lead to inconsistent results. Extend the locking to prevent this issue. Commit c9c8ed50d94c ("f2fs: fix to avoid potential race on sbi->unusable_block_count access/update") already added the use of sbi->stat_lock in statfs in order to make the calculation of multiple, different fields atomic so that results are consistent. This is similar to that patch regarding the change in statfs.Signed-off-by: Niels Dossche <[email protected]>
Reviewed-by: Chao Yu <[email protected]> Thanks, _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
