Btrfs: Use map_private_extent_buffer during generic_bin_search

Browse source

It is possible that generic_bin_search will be called on a tree block
that has not been locked.  This happens because cache_block_block skips
locking on the tree blocks.

Since the tree block isn't locked, we aren't allowed to change
the extent_buffer->map_token field.  Using map_private_extent_buffer
avoids any changes to the internal extent buffer fields.

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

...

This commit is contained in:

Chris Mason 2008-12-08 16:43:10 -05:00

parent a512bbf855

commit 934d375bac

3 changed files with 9 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

5

fs/btrfs/ctree.c

View file

1

fs/btrfs/extent_io.c

View file

5

fs/btrfs/volumes.c

View file