Re: [f2fs-dev] [PATCH 2/6] f2fs: declare nested quota_sem and remove unnecessary sems

[Chao Yu]

On 2019/12/10 6:23, Jaegeuk Kim wrote:
> 1.
> f2fs_quota_sync
>  -> down_read(&sbi->quota_sem)
>  -> dquot_writeback_dquots
>   -> f2fs_dquot_commit
>    -> down_read(&sbi->quota_sem)
> 
> 2.
> f2fs_quota_sync
>  -> down_read(&sbi->quota_sem)
>   -> f2fs_write_data_pages
>    -> f2fs_write_single_data_page
>     -> down_write(&F2FS_I(inode)->i_sem)
> 
> f2fs_mkdir
>  -> f2fs_do_add_link
>    -> down_write(&F2FS_I(inode)->i_sem)
>    -> f2fs_init_inode_metadata
>     -> f2fs_new_node_page
>      -> dquot_alloc_inode
>       -> f2fs_dquot_mark_dquot_dirty
>        -> down_read(&sbi->quota_sem)
> 
> Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>

Reviewed-by: Chao Yu <yuchao0@xxxxxxxxxx>

Thanks,