From: Andreas Dilger <adilger@sun.com>
To: "Theodore Ts'o" <tytso@mit.edu>
Cc: linux-ext4@vger.kernel.org, aneesh.kumar@linux.vnet.ibm.com
Subject: Re: [PATCH, RFC] ext4: add EXT4_IOC_ALLOC_DA_BLKS ioctl
Date: Tue, 24 Feb 2009 03:11:05 -0700 [thread overview]
Message-ID: <20090224101105.GM3199@webber.adilger.int> (raw)
In-Reply-To: <1235451952-2726-5-git-send-email-tytso@mit.edu>
On Feb 24, 2009 00:05 -0500, Theodore Ts'o wrote:
> +#define EXT4_IOC_ALLOC_DA_BLKS _IO('f', 10)
> /* note ioctl 11 reserved for filesystem-independent FIEMAP ioctl */
Please don't use ioctl number 10 - it was used by an early
version of the FIEMAP ioctl that we still have in use in Lustre
filesystems. Not that there is much chance of a collision, but
it is also easily enough avoided.
Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.
next prev parent reply other threads:[~2009-02-24 10:11 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-24 5:05 [PATCH, RFC] Clean up of delalloc code and map-on-close/rename fixes Theodore Ts'o
2009-02-24 5:05 ` [PATCH, RFC] ext4: Simplify delalloc implementation by removing mpd.get_block Theodore Ts'o
2009-02-24 5:05 ` [PATCH, RFC] ext4: Save stack space by removing fake buffer heads Theodore Ts'o
2009-02-24 5:05 ` [PATCH, RFC] ext4: Simplify delalloc code by removing mpage_da_writepages() Theodore Ts'o
2009-02-24 5:05 ` [PATCH, RFC] ext4: add EXT4_IOC_ALLOC_DA_BLKS ioctl Theodore Ts'o
2009-02-24 5:05 ` [PATCH, RFC] ext4: Automatically allocate delay allocated blocks on close Theodore Ts'o
2009-02-24 5:05 ` [PATCH, RFC] ext4: Automatically allocate delay allocated blocks on rename Theodore Ts'o
2009-02-24 10:13 ` [PATCH, RFC] ext4: Automatically allocate delay allocated blocks on close Andreas Dilger
2009-02-24 13:21 ` Theodore Tso
2009-02-24 9:38 ` [PATCH, RFC] ext4: add EXT4_IOC_ALLOC_DA_BLKS ioctl Aneesh Kumar K.V
2009-02-24 13:14 ` Theodore Tso
2009-02-24 10:11 ` Andreas Dilger [this message]
2009-02-24 13:16 ` Theodore Tso
2009-03-11 22:41 ` Eric Sandeen
2009-03-12 5:29 ` Aneesh Kumar K.V
2009-03-12 16:32 ` Eric Sandeen
2009-03-12 20:04 ` Theodore Tso
2009-03-12 20:05 ` Eric Sandeen
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