Btrfs: keep track of the extents original block length

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If we've written to a prealloc extent we need to know the original block len
for the extent.  We can't figure this out currently since ->block_len is
just set to the extent length.  So introduce ->orig_block_len so that we
know how many bytes were in the original extent for proper extent logging
that future patches will need.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

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This commit is contained in:

Josef Bacik 2012-12-03 10:31:19 -05:00 • committed by Chris Mason

parent b812ce2879

commit b493968096

3 changed files with 24 additions and 4 deletions

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1

fs/btrfs/extent_map.h

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5

fs/btrfs/file.c

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22

fs/btrfs/inode.c

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