| commit | 2be12de98a1cc21c4de4e2d6fb2bf5aa0a279947 | [log] [tgz] |
|---|---|---|
| author | Jan Kara <jack@suse.cz> | Tue Nov 25 11:55:24 2014 -0500 |
| committer | Theodore Ts'o <tytso@mit.edu> | Tue Nov 25 11:55:24 2014 -0500 |
| tree | 4cd9da2b11616ee1a38bb1ac677ca7ec90bef2b7 | |
| parent | 624d0f1dd7c80d2bac4fc3066b2ff3947f890883 [diff] |
ext4: introduce aging to extent status tree Introduce a simple aging to extent status tree. Each extent has a REFERENCED bit which gets set when the extent is used. Shrinker then skips entries with referenced bit set and clears the bit. Thus frequently used extents have higher chances of staying in memory. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu>