From: Andreas Dilger <adilger@sun.com>
To: Akira Fujita <a-fujita@rs.jp.nec.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>,
linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [RFC][PATCH 2/7]ext4: Add EXT4_IOC_CLR_GLOBAL_ALLOC_RULE clears block allocation restriction
Date: Wed, 24 Jun 2009 01:21:31 +0200 [thread overview]
Message-ID: <20090623232131.GO31668@webber.adilger.int> (raw)
In-Reply-To: <4A409171.3090202@rs.jp.nec.com>
On Jun 23, 2009 17:25 +0900, Akira Fujita wrote:
> Block allocation restriction is cleared with this ioctl or umount filesystem.
>
> #define EXT4_IOC_CLR_GLOBAL_ALLOC_RULE _IOW('f', 17, struct ext4_alloc_rule);
>
> struct ext4_alloc_rule {
> __u64 start; /* start physical offset to clear rule */
> __u64 len; /* number of blocks to be clear */
> __u32 alloc_flag; /* not used, should be zero */
> };
Why not call EXT4_IOC_ADD_GLOBAL_ALLOC_RULE with a "clear" flag?
Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.
next prev parent reply other threads:[~2009-06-23 23:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-23 8:25 [RFC][PATCH 2/7]ext4: Add EXT4_IOC_CLR_GLOBAL_ALLOC_RULE clears block allocation restriction Akira Fujita
2009-06-23 23:21 ` Andreas Dilger [this message]
2009-06-24 8:20 ` Akira Fujita
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