From: Theodore Ts'o <tytso@mit.edu>
To: Namjae Jeon <linkinjeon@gmail.com>
Cc: jack@suse.cz, Namjae Jeon <namjae.jeon@samsung.com>,
linux-kernel@vger.kernel.org, xfs@oss.sgi.com, bpm@sgi.com,
adilger.kernel@dilger.ca, mtk.manpages@gmail.com,
Ashish Sangwan <a.sangwan@samsung.com>,
linux-fsdevel@vger.kernel.org, lczerner@redhat.com,
linux-ext4@vger.kernel.org, viro@zeniv.linux.org.uk
Subject: Re: [PATCH v5 1/10] fs: Add new flag(FALLOC_FL_COLLAPSE_RANGE) for fallocate
Date: Sat, 22 Feb 2014 09:06:25 -0500 [thread overview]
Message-ID: <20140222140625.GD26637@thunk.org> (raw)
In-Reply-To: <1392741464-20029-1-git-send-email-linkinjeon@gmail.com>
On Wed, Feb 19, 2014 at 01:37:43AM +0900, Namjae Jeon wrote:
> + /*
> + * There is no need to overlap collapse range with EOF, in which case
> + * it is effectively a truncate operation
> + */
> + if ((mode & FALLOC_FL_COLLAPSE_RANGE) &&
> + (offset + len >= i_size_read(inode)))
> + return -EINVAL;
> +
I wonder if we should just translate a collapse range that is
equivalent to a truncate operation to, in fact, be a truncate
operation?
- Ted
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WARNING: multiple messages have this Message-ID (diff)
From: "Theodore Ts'o" <tytso@mit.edu>
To: Namjae Jeon <linkinjeon@gmail.com>
Cc: viro@zeniv.linux.org.uk, david@fromorbit.com, bpm@sgi.com,
adilger.kernel@dilger.ca, jack@suse.cz, mtk.manpages@gmail.com,
lczerner@redhat.com, linux-fsdevel@vger.kernel.org,
xfs@oss.sgi.com, linux-ext4@vger.kernel.org,
linux-kernel@vger.kernel.org,
Namjae Jeon <namjae.jeon@samsung.com>,
Ashish Sangwan <a.sangwan@samsung.com>
Subject: Re: [PATCH v5 1/10] fs: Add new flag(FALLOC_FL_COLLAPSE_RANGE) for fallocate
Date: Sat, 22 Feb 2014 09:06:25 -0500 [thread overview]
Message-ID: <20140222140625.GD26637@thunk.org> (raw)
In-Reply-To: <1392741464-20029-1-git-send-email-linkinjeon@gmail.com>
On Wed, Feb 19, 2014 at 01:37:43AM +0900, Namjae Jeon wrote:
> + /*
> + * There is no need to overlap collapse range with EOF, in which case
> + * it is effectively a truncate operation
> + */
> + if ((mode & FALLOC_FL_COLLAPSE_RANGE) &&
> + (offset + len >= i_size_read(inode)))
> + return -EINVAL;
> +
I wonder if we should just translate a collapse range that is
equivalent to a truncate operation to, in fact, be a truncate
operation?
- Ted
next prev parent reply other threads:[~2014-02-22 14:06 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-18 16:37 [PATCH v5 1/10] fs: Add new flag(FALLOC_FL_COLLAPSE_RANGE) for fallocate Namjae Jeon
2014-02-18 16:37 ` Namjae Jeon
2014-02-22 14:06 ` Theodore Ts'o [this message]
2014-02-22 14:06 ` Theodore Ts'o
2014-02-23 21:36 ` Dave Chinner
2014-02-23 21:36 ` Dave Chinner
2014-02-25 23:41 ` Hugh Dickins
2014-02-25 23:41 ` Hugh Dickins
2014-02-25 23:41 ` Hugh Dickins
2014-02-26 1:57 ` Dave Chinner
2014-02-26 1:57 ` Dave Chinner
2014-02-26 1:57 ` Dave Chinner
2014-02-26 5:25 ` Hugh Dickins
2014-02-26 5:25 ` Hugh Dickins
2014-02-26 5:25 ` Hugh Dickins
2014-02-26 10:04 ` Dave Chinner
2014-02-26 10:04 ` Dave Chinner
2014-02-26 10:04 ` Dave Chinner
2014-02-26 23:48 ` Hugh Dickins
2014-02-26 23:48 ` Hugh Dickins
2014-02-26 23:48 ` Hugh Dickins
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