From: "J. Bruce Fields" <bfields@fieldses.org>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: viro@ZenIV.linux.org.uk, torvalds@linux-foundation.org,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
hch@infradead.org, akpm@linux-foundation.org,
dhowells@redhat.com, zab@redhat.com, jack@suse.cz,
luto@amacapital.net, mszeredi@suse.cz
Subject: Re: [PATCH 01/13] vfs: add d_is_dir()
Date: Fri, 7 Feb 2014 12:36:36 -0500 [thread overview]
Message-ID: <20140207173636.GA8801@fieldses.org> (raw)
In-Reply-To: <1391791751-2533-2-git-send-email-miklos@szeredi.hu>
On Fri, Feb 07, 2014 at 05:48:59PM +0100, Miklos Szeredi wrote:
> From: Miklos Szeredi <mszeredi@suse.cz>
>
> Add d_is_dir(dentry) helper which is analogous to S_ISDIR().
While trying to get up to speed I notice that these flags were
introduced by b18825a7c8e37a7cf6abb97a12a6ad71af160de7 "VFS: Put a small
type field into struct dentry::d_flags" whose changelog tells me "what"
but not "why". So out of curiosity: was that some kind of optimization,
or was there some other reason for it?
--b.
next prev parent reply other threads:[~2014-02-07 17:36 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-07 16:48 [PATCH 00/13] cross rename v4 Miklos Szeredi
2014-02-07 16:48 ` [PATCH 01/13] vfs: add d_is_dir() Miklos Szeredi
2014-02-07 17:36 ` J. Bruce Fields [this message]
2014-02-07 19:30 ` David Howells
2014-02-07 16:49 ` [PATCH 02/13] vfs: rename: move d_move() up Miklos Szeredi
2014-02-07 16:49 ` [PATCH 03/13] vfs: rename: use common code for dir and non-dir Miklos Szeredi
2014-02-07 16:49 ` [PATCH 04/13] vfs: add renameat2 syscall Miklos Szeredi
2014-02-07 16:49 ` [PATCH 05/13] vfs: add RENAME_NOREPLACE flag Miklos Szeredi
2014-02-07 16:49 ` [PATCH 06/13] security: add flags to rename hooks Miklos Szeredi
2014-02-07 16:49 ` [PATCH 07/13] vfs: lock_two_nondirectories: allow directory args Miklos Szeredi
2014-02-07 21:16 ` J. Bruce Fields
2014-02-11 15:32 ` Miklos Szeredi
2014-02-07 16:49 ` [PATCH 08/13] vfs: add cross-rename Miklos Szeredi
2014-02-07 22:40 ` J. Bruce Fields
2014-02-11 15:55 ` Miklos Szeredi
2014-02-07 16:49 ` [PATCH 09/13] ext4: rename: create ext4_renament structure for local vars Miklos Szeredi
2014-02-07 16:49 ` [PATCH 10/13] ext4: rename: move EMLINK check up Miklos Szeredi
2014-02-07 16:49 ` [PATCH 11/13] ext4: rename: split out helper functions Miklos Szeredi
2014-02-07 16:49 ` [PATCH 12/13] ext4: add cross rename support Miklos Szeredi
2014-02-11 21:23 ` Jan Kara
2014-02-07 16:49 ` [PATCH 13/13] vfs: merge rename2 into rename Miklos Szeredi
2014-02-07 22:46 ` [PATCH 00/13] cross rename v4 J. Bruce Fields
2014-02-11 15:57 ` Miklos Szeredi
2014-02-13 19:32 ` J. Bruce Fields
2014-02-10 10:51 ` Dave Chinner
2014-02-11 16:01 ` Miklos Szeredi
2014-02-12 17:18 ` Miklos Szeredi
2014-02-17 8:19 ` Dave Chinner
2014-02-17 18:04 ` Theodore Ts'o
2014-03-19 13:57 ` xfstest for renameat2 system call (was: [PATCH 00/13] cross rename v4) Miklos Szeredi
2014-04-08 1:23 ` Dave Chinner
2014-02-13 15:54 ` [PATCH 00/13] cross rename v4 David Howells
2014-02-13 16:25 ` Miklos Szeredi
2014-02-13 16:42 ` David Howells
2014-02-13 17:28 ` Miklos Szeredi
2014-02-13 18:21 ` Andy Lutomirski
2014-02-13 18:29 ` Linus Torvalds
2014-02-13 18:56 ` Miklos Szeredi
2014-02-13 19:20 ` Linus Torvalds
2014-02-13 19:02 ` David Howells
2014-02-13 19:32 ` Linus Torvalds
2014-02-13 20:17 ` Eric W. Biederman
2014-02-13 20:28 ` Miklos Szeredi
2014-02-24 17:12 ` Miklos Szeredi
2014-02-24 17:49 ` Linus Torvalds
2014-02-25 4:07 ` J. R. Okajima
2014-02-26 15:15 ` Jan Kara
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