From: Al Viro <viro@zeniv.linux.org.uk>
To: Jeff Layton <jlayton@kernel.org>
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Subject: Re: [PATCH v2 08/92] fs: new helper: simple_rename_timestamp
Date: Wed, 30 Aug 2023 01:19:17 +0100 [thread overview]
Message-ID: <20230830001917.GC461907@ZenIV> (raw)
In-Reply-To: <20230705185812.579118-3-jlayton@kernel.org>
On Wed, Jul 05, 2023 at 02:58:11PM -0400, Jeff Layton wrote:
> + * POSIX mandates that the old and new parent directories have their ctime and
> + * mtime updated, and that inodes of @old_dentry and @new_dentry (if any), have
> + * their ctime updated.
APPLICATION USAGE
Some implementations mark for update the last file status change timestamp
of renamed files and some do not. Applications which make use of the
last file status change timestamp may behave differently with respect
to renamed files unless they are designed to allow for either behavior.
So for children POSIX permits rather than mandates. Doesn't really matter;
Linux behaviour had been to touch ctime on children since way back, if
not since the very beginning.
next prev parent reply other threads:[~2023-08-30 0:24 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-05 18:58 [PATCH v2 00/89] fs: new accessors for inode->i_ctime Jeff Layton
2023-07-05 18:58 ` [PATCH v2 07/92] fs: add ctime accessors infrastructure Jeff Layton
2023-07-05 23:12 ` Damien Le Moal
2023-07-05 18:58 ` [PATCH v2 08/92] fs: new helper: simple_rename_timestamp Jeff Layton
2023-07-05 23:19 ` Damien Le Moal
2023-07-06 0:04 ` Jeff Layton
2023-07-06 21:02 ` [apparmor] " Seth Arnold
2023-07-07 10:50 ` Jeff Layton
2023-07-06 10:27 ` Jan Kara
2023-08-30 0:19 ` Al Viro [this message]
2023-08-30 0:48 ` Jeff Layton
2023-07-05 18:58 ` [PATCH v2 92/92] fs: rename i_ctime field to __i_ctime Jeff Layton
2023-07-05 23:19 ` Damien Le Moal
2023-07-06 14:58 ` Jan Kara
2023-07-05 21:57 ` [PATCH v2 00/89] fs: new accessors for inode->i_ctime Jeff Layton
2023-07-06 15:16 ` Eric W. Biederman
2023-07-06 16:14 ` Jeff Layton
2023-07-07 12:42 ` Jeff Layton
2023-07-10 12:35 ` Christian Brauner
2023-07-10 13:32 ` Jeff Layton
2023-07-10 12:18 ` [PATCH v2 00/92] " Christian Brauner
2023-09-04 18:11 ` [f2fs-dev] [PATCH v2 00/89] " patchwork-bot+f2fs
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