https://bugzilla.kernel.org/show_bug.cgi?id=208565

--- Comment #7 from yuch...@huawei.com ---
On 2020/7/17 1:15, bugzilla-dae...@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=208565
> 
> Jaegeuk Kim (jaeg...@kernel.org) changed:
> 
>             What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                   CC|                            |jaeg...@kernel.org
> 
> --- Comment #1 from Jaegeuk Kim (jaeg...@kernel.org) ---
> Thank you for the report.
> 
> I think this is valid point that we need to fix.
> I'm testing a RFC patch like this. Thanks.


Shouldn't we revert 34c061ad85a2 ("f2fs: Avoid double lock for cp_rwsem during
checkpoint")
at the same time?

> 
> --- a/fs/f2fs/node.c
> +++ b/fs/f2fs/node.c
> @@ -1926,8 +1926,12 @@ int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
>                                  goto continue_unlock;
>                          }
> 
> -                       /* flush inline_data, if it's async context. */
> -                       if (do_balance && is_inline_node(page)) {
> +                       /* flush inline_data/inode, if it's async context. */
> +                       if (!do_balance)
> +                               goto write_node;
> +
> +                       /* flush inline_data */
> +                       if (is_inline_node(page)) {
>                                  clear_inline_node(page);
>                                  unlock_page(page);
>                                  flush_inline_data(sbi, ino_of_node(page));
> @@ -1940,7 +1944,7 @@ int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
>                                  if (flush_dirty_inode(page))
>                                          goto lock_node;
>                          }
> -
> +write_node:
>                          f2fs_wait_on_page_writeback(page, NODE, true, true);
> 
>                          if (!clear_page_dirty_for_io(page))
>

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