linux-kernel - Re: [PATCH] proc: extend /proc/<pid>/fdinfo/<fd>

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Date:	Mon, 11 Feb 2008 19:20:47 +0900
From:	"KOSAKI Motohiro" <m-kosaki@...es.dti.ne.jp>
To:	"Eugene Teo" <eugeneteo@...nel.sg>
Cc:	linux-kernel@...r.kernel.org, "Miklos Szeredi" <mszeredi@...e.cz>
Subject: Re: [PATCH] proc: extend /proc/<pid>/fdinfo/<fd>

Hi Eugene

In general, I think this patch isn't wrong idea.
but it shuld be brush up more, may be.

> kerndev: ~/code/kernel# cat /proc/`pgrep pickup`/fdinfo/6
> mode:   0622

I think this is inode attribute, but not fd attribute.

> dev:    253,0
> ino:    21463057

may be useful, agreed with you :)

> uid:    89
> gid:    89
> rdev:   0,0
> pos:    0
> flags:  04002 FD_CLOEXEC # if close-on-exec flag is set

agreed with Miklos's opinion.

> path:   /var/spool/postfix/public/pickup

may be, we shold think namespace..

> You can also use this to find out more information about locked open files:

is your requirement only fd -> ino pick up?
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