linux-kernel - Re: [PATCH] bcachefs: Align the display format of `btrees/inodes/keys`

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Date: Tue, 16 Apr 2024 22:59:35 -0400
From: Kent Overstreet <kent.overstreet@...ux.dev>
To: Youling Tang <youling.tang@...ux.dev>
Cc: linux-bcachefs@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Youling Tang <tangyouling@...inos.cn>
Subject: Re: [PATCH] bcachefs: Align the display format of
 `btrees/inodes/keys`

On Wed, Apr 17, 2024 at 10:50:10AM +0800, Youling Tang wrote:
> Hi, Kent
> On 17/04/2024 10:20, Kent Overstreet wrote:
> > On Wed, Apr 17, 2024 at 09:54:48AM +0800, Youling Tang wrote:
> > > From: Youling Tang <tangyouling@...inos.cn>
> > > 
> > > Before patch:
> > > ```
> > >   #cat btrees/inodes/keys
> > >   u64s 17 type inode_v3 0:4096:U32_MAX len 0 ver 0:   mode=40755
> > >     flags= (16300000)
> > > ```
> > > 
> > > After patch:
> > > ```
> > >   #cat btrees/inodes/keys
> > >   u64s 17 type inode_v3 0:4096:U32_MAX len 0 ver 0:
> > >     mode=40755
> > >     flags= (16300000)
> > This would print a newline for keys that don't have a value...
> The original intention was to make the display of the printed content in
> '__bch2_inode_unpacked_to_text ()' consistent, without considering other
> callbacks.
> 
> Or just modify it in the following way?

Yeah, that's better

Do it off my master branch though, there's some printbuf imprevements in
there.

https://evilpiepirate.org/git/bcachefs.git

> --- a/fs/bcachefs/inode.c
> +++ b/fs/bcachefs/inode.c
> @@ -534,6 +534,8 @@ int bch2_inode_v3_invalid(struct bch_fs *c, struct
> bkey_s_c k,
>  static void __bch2_inode_unpacked_to_text(struct printbuf *out,
> struct bch_inode_unpacked *inode)
>  {
> +       prt_newline(out);
> +
>         printbuf_indent_add(out, 2);
>         prt_printf(out, "mode=%o", inode->bi_mode);
>         prt_newline(out);
> 
> 
> Thanks,
> Youling.