| commit | 46bfbb5c0740c200d2b66afcbd1f9d64ab320940 | [log] [tgz] |
|---|---|---|
| author | Chris Mason <chris.mason@oracle.com> | Wed May 26 11:04:10 2010 -0400 |
| committer | Chris Mason <chris.mason@oracle.com> | Wed May 26 21:34:45 2010 -0400 |
| tree | 3ec1523f7da103a79f71fc5f486596307a4eeb54 | |
| parent | 94b604429a6cd94ddc128fa2772c57209bb1318f [diff] |
Btrfs: fix preallocation and nodatacow checks in O_DIRECT The O_DIRECT code wasn't checking for multiple references on preallocated or nodatacow extents. This means it wasn't honoring snapshots properly. The fix here is to add an explicit check for multiple references This also fixes the math for selecting the correct disk block, making sure not to go past the end of the extent. Signed-off-by: Chris Mason <chris.mason@oracle.com>