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Re: XFS holding onto disk memory

To: Eric Sandeen <sandeen@xxxxxxx>
Subject: Re: XFS holding onto disk memory
From: Steve Lord <lord@xxxxxxx>
Date: 26 Mar 2003 13:23:59 -0600
Cc: Mark Grimes <MGrimes@xxxxxxxxxxxxxxxxx>, "'linux-xfs@xxxxxxxxxxx'" <linux-xfs@xxxxxxxxxxx>
In-reply-to: <Pine.LNX.4.44.0303261314300.7210-100000@xxxxxxxxxxxxxxxxxxxxxx>
References: <Pine.LNX.4.44.0303261314300.7210-100000@xxxxxxxxxxxxxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
On Wed, 2003-03-26 at 13:16, Eric Sandeen wrote:
> > Is this expected behavior?  Is there a way to recover the on disk memory
> > without unmounting the filesystem?
> XFS dynamically allocates inodes as they are requested, but they are
> never freed.  Even unmounting won't get this back for you.
> So if you fill your disk with 0-length files, the space allocated
> for inodes will always & forever be allocated for those inodes.
> (compare this to ext2, where inode space is permanently allocated
> at mkfs time).
> You can use xfs_growfs to change the % of the disk which can be used
> for inodes, though.
> -Eric

And we do have freeing of inodes working in house.



Steve Lord                                      voice: +1-651-683-3511
Principal Engineer, Filesystem Software         email: lord@xxxxxxx

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