Re: Interface for the new fallocate() system call

To:	Jörn Engel <joern@xxxxxxxxxxxxxxx>
Subject:	Re: Interface for the new fallocate() system call
From:	Paul Mackerras <paulus@xxxxxxxxx>
Date:	Mon, 9 Apr 2007 23:01:42 +1000
Cc:	Heiko Carstens <heiko.carstens@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, "Amit K. Arora" <aarora@xxxxxxxxxxxxxxxxxx>, torvalds@xxxxxxxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, suparna@xxxxxxxxxx, cmm@xxxxxxxxxx
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To:

Jörn Engel <joern@xxxxxxxxxxxxxxx>

Subject:

Re: Interface for the new fallocate() system call

From:

Paul Mackerras <paulus@xxxxxxxxx>

Date:

Mon, 9 Apr 2007 23:01:42 +1000

Cc:

Heiko Carstens <heiko.carstens@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, "Amit K. Arora" <aarora@xxxxxxxxxxxxxxxxxx>, torvalds@xxxxxxxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, suparna@xxxxxxxxxx, cmm@xxxxxxxxxx

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<20070330104449.GA9371@xxxxxxxxxxxxxxx>

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xfs-bounce@xxxxxxxxxxx

Jörn Engel writes:

> Wouldn't that work be confined to fallocate()?  If I understand Heiko
> correctly, the alternative would slow s390 down for every syscall,
> including more performance-critical ones.

The alternative that Jakub suggested wouldn't slow s390 down.

Paul.

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Re: Interface for the new fallocate() system call, Amit K. Arora Re: Interface for the new fallocate() system call, Amit K. Arora Re: Interface for the new fallocate() system call, Randy Dunlap Re: Interface for the new fallocate() system call, Andreas Dilger Re: Interface for the new fallocate() system call, Paul Mackerras <= Re: Interface for the new fallocate() system call, JÃrn Engel Re: Interface for the new fallocate() system call, Amit K. Arora Re: Interface for the new fallocate() system call, Andreas Dilger Re: Interface for the new fallocate() system call, Amit K. Arora Re: Interface for the new fallocate() system call, Jakub Jelinek Re: Interface for the new fallocate() system call, Amit K. Arora [PATCH 0/5] fallocate system call, Amit K. Arora [PATCH 1/5] fallocate() implementation in i86, x86_64 and powerpc, Amit K. Arora [PATCH 3/5] ext4: Extent overlap bugfix, Amit K. Arora [PATCH 5/5] ext4: write support for preallocated blocks/extents, Amit K. Arora

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