Re: [PATCH RFC 1/3] fs: introduce helper d_path_fast()

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To: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Subject: Re: [PATCH RFC 1/3] fs: introduce helper d_path_fast()
From: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Sat, 8 May 2021 15:48:18 -0700
Cc: Jia He <justin.he@xxxxxxx>, Petr Mladek <pmladek@xxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>, Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>, Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Al Viro <viro@xxxxxxxxxxxxxxxx>, Heiko Carstens <hca@xxxxxxxxxxxxx>, Vasily Gorbik <gor@xxxxxxxxxxxxx>, Christian Borntraeger <borntraeger@xxxxxxxxxx>, "Eric W . Biederman" <ebiederm@xxxxxxxxxxxx>, "Darrick J. Wong" <darrick.wong@xxxxxxxxxx>, "Peter Zijlstra (Intel)" <peterz@xxxxxxxxxxxxx>, Ira Weiny <ira.weiny@xxxxxxxxx>, Eric Biggers <ebiggers@xxxxxxxxxx>, "Ahmed S. Darwish" <a.darwish@xxxxxxxxxxxxx>, "open list:DOCUMENTATION" <linux-doc@xxxxxxxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, linux-s390 <linux-s390@xxxxxxxxxxxxxxx>, linux-fsdevel <linux-fsdevel@xxxxxxxxxxxxxxx>
In-reply-to: <YJcUvwo2pn0JEs27@zeniv-ca.linux.org.uk>
References: <20210508122530.1971-1-justin.he@arm.com> <20210508122530.1971-2-justin.he@arm.com> <CAHk-=wgSFUUWJKW1DXa67A0DXVzQ+OATwnC3FCwhqfTJZsvj1A@mail.gmail.com> <YJbivrA4Awp4FXo8@zeniv-ca.linux.org.uk> <CAHk-=whZhNXiOGgw8mXG+PTpGvxnRG1v5_GjtjHpoYXd2Fn_Ow@mail.gmail.com> <YJb9KFBO7MwJeDHz@zeniv-ca.linux.org.uk> <CAHk-=wjgXvy9EoE1_8KpxE9P3J_a-NF7xRKaUzi9MPSCmYnq+Q@mail.gmail.com> <YJcUvwo2pn0JEs27@zeniv-ca.linux.org.uk>

On Sat, May 8, 2021 at 3:46 PM Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote:
>
> static inline struct mount *real_mount(struct vfsmount *mnt)
> {
>         return container_of(mnt, struct mount, mnt);

Too subtle for me indeed.

           Linus

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References:
- [PATCH RFC 0/3] make '%pD' print full path for file
  - From: Jia He
- [PATCH RFC 1/3] fs: introduce helper d_path_fast()
  - From: Jia He
- Re: [PATCH RFC 1/3] fs: introduce helper d_path_fast()
  - From: Linus Torvalds
- Re: [PATCH RFC 1/3] fs: introduce helper d_path_fast()
  - From: Al Viro
- Re: [PATCH RFC 1/3] fs: introduce helper d_path_fast()
  - From: Linus Torvalds
- Re: [PATCH RFC 1/3] fs: introduce helper d_path_fast()
  - From: Al Viro
- Re: [PATCH RFC 1/3] fs: introduce helper d_path_fast()
  - From: Linus Torvalds
- Re: [PATCH RFC 1/3] fs: introduce helper d_path_fast()
  - From: Al Viro

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