Btrfs: Fix add_extent_mapping to check for duplicates across the whole range

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add_extent_mapping was allowing the insertion of overlapping extents.
This never used to happen because it only inserted the extents from disk
and those were never overlapping.

But, with the data=ordered code, the disk and memory representations of the
file are not the same.  add_extent_mapping needs to ensure a new extent
does not overlap before it inserts.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

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This commit is contained in:

Chris Mason 2008-08-20 08:51:50 -04:00

parent 902b22f341

commit 7c2fe32a23

2 changed files with 24 additions and 4 deletions

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7

fs/btrfs/extent_map.c

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21

fs/btrfs/inode.c

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