Re: [PATCH 22/27] xfs: use generic get_unaligned

To:	Dave Chinner <david@xxxxxxxxxxxxx>
Subject:	Re: [PATCH 22/27] xfs: use generic get_unaligned_beXX helpers
From:	Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date:	Thu, 7 Jul 2011 04:00:06 -0400
Cc:	Christoph Hellwig <hch@xxxxxxxxxxxxx>, xfs@xxxxxxxxxxx
In-reply-to:	<20110706090754.GI19861@xxxxxxxxxxxxx>
References:	<20110701094321.936534538@xxxxxxxxxxxxxxxxxxxxxx> <20110701094606.763430916@xxxxxxxxxxxxxxxxxxxxxx> <20110706034421.GQ1026@dastard> <20110706090754.GI19861@xxxxxxxxxxxxx>
User-agent:	Mutt/1.5.21 (2010-09-15)

One interestin caveat about inode numers is that the we use the
XFS_DIR2_DATA_FREE_TAG magic number in the firt two bytes of
struct xfs_dir2_data_unused to detect this free space header in all
non-shortform directory formats.  These two bytes overlap with
the inode number in struct xfs_dir2_data_entry.

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Re: [PATCH 20/27] xfs: cleanup the defintion of struct xfs_dir2_data_entry, (continued) Re: [PATCH 20/27] xfs: cleanup the defintion of struct xfs_dir2_data_entry, Christoph Hellwig [PATCH 19/27] xfs: kill struct xfs_dir2_data, Christoph Hellwig Re: [PATCH 19/27] xfs: kill struct xfs_dir2_data, Dave Chinner Re: [PATCH 19/27] xfs: kill struct xfs_dir2_data, Alex Elder [PATCH 21/27] xfs: cleanup struct xfs_dir2_leaf, Christoph Hellwig Re: [PATCH 21/27] xfs: cleanup struct xfs_dir2_leaf, Dave Chinner Re: [PATCH 21/27] xfs: cleanup struct xfs_dir2_leaf, Alex Elder [PATCH 22/27] xfs: use generic get_unaligned_beXX helpers, Christoph Hellwig Re: [PATCH 22/27] xfs: use generic get_unaligned_beXX helpers, Dave Chinner Re: [PATCH 22/27] xfs: use generic get_unaligned_beXX helpers, Christoph Hellwig Re: [PATCH 22/27] xfs: use generic get_unaligned_beXX helpers, Christoph Hellwig <= Re: [PATCH 22/27] xfs: use generic get_unaligned_beXX helpers, Alex Elder [PATCH 23/27] xfs: remove the unused xfs_bufhash structure, Christoph Hellwig Re: [PATCH 23/27] xfs: remove the unused xfs_bufhash structure, Dave Chinner Re: [PATCH 23/27] xfs: remove the unused xfs_bufhash structure, Alex Elder [PATCH 14/27] xfs: kill struct xfs_dir2_sf, Christoph Hellwig Re: [PATCH 14/27] xfs: kill struct xfs_dir2_sf, Dave Chinner Re: [PATCH 14/27] xfs: kill struct xfs_dir2_sf, Christoph Hellwig Re: [PATCH 14/27] xfs: kill struct xfs_dir2_sf, Alex Elder Re: [PATCH 14/27] xfs: kill struct xfs_dir2_sf, Christoph Hellwig Re: [PATCH 14/27] xfs: kill struct xfs_dir2_sf, Alex Elder

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Re: [PATCH 22/27] xfs: use generic get_unaligned_beXX helpers