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Re: [PATCH] btree support in xfs driver

From: Marco Gerards
Subject: Re: [PATCH] btree support in xfs driver
Date: Thu, 31 Jan 2008 20:57:21 +0100
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux)

Bean <address@hidden> writes:

Hi Bean!

> I add btree support for the xfs driver, and fix a few bugs. Now i' m
> able to list a directory of over 5000 files, please test it.

You rock!

Can you load big files now, that are stored in BTrees.  Did you use
code from elsewhere?

> 2008-02-01  Bean  <address@hidden>
>       * fs/xfs.h (grub_xfs_sblock): New member log2_dirblk.
>       (grub_xfs_btree_node): New structure.
>       (grub_xfs_btree_root): New structure.
>       (grub_xfs_inode): New member nblocks, extsize, nextents and btree.


>       (GRUB_XFS_EXTENT_OFFSET): Use exts instead of inode->data.extents.
>       (GRUB_XFS_EXTENT_BLOCK): Likewise.
>       (GRUB_XFS_EXTENT_SIZE): Likewise.
>       (grub_xfs_read_block): Support btree format type.
>       (grub_xfs_iterate_dir): Use regparm(1) attribute in call_hook.
>       Use directory block as basic unit.

This won't work on non-i386.  So I think this has to be fixed like
that other bug, for example with the autoconf check extension you


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