From: Theodore Ts'o <tytso@mit.edu>
To: Namjae Jeon <namjae.jeon@samsung.com>
Cc: linux-ext4 <linux-ext4@vger.kernel.org>,
"Lukáš Czerner" <lczerner@redhat.com>
Subject: Re: [PATCH] ext4: Add support FALLOC_FL_INSERT_RANGE for fallocate
Date: Mon, 15 Jun 2015 00:29:20 -0400 [thread overview]
Message-ID: <20150615042920.GI15793@thunk.org> (raw)
In-Reply-To: <02e401d09475$f5cd47a0$e167d6e0$@samsung.com>
On Fri, May 22, 2015 at 06:59:14PM +0900, Namjae Jeon wrote:
> This patch implements fallocate's FALLOC_FL_INSERT_RANGE for Ext4.
>
> 1) Make sure that both offset and len are block size aligned.
> 2) Update the i_size of inode by len bytes.
> 3) Compute the file's logical block number against offset. If the computed
> block number is not the starting block of the extent, split the extent
> such that the block number is the starting block of the extent.
> 4) Shift all the extents which are lying between [offset, last allocated extent]
> towards right by len bytes. This step will make a hole of len bytes
> at offset.
>
> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
> Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Thanks, applied.
- Ted
prev parent reply other threads:[~2015-06-15 4:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-22 9:59 [PATCH] ext4: Add support FALLOC_FL_INSERT_RANGE for fallocate Namjae Jeon
2015-06-15 4:29 ` Theodore Ts'o [this message]
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