diff options
| author |   Filipe Manana <fdmanana@gmail.com> | 2014-03-11 13:56:15 +0000 |
|---|---|---|
| committer |   Chris Mason <clm@fb.com> | 2014-03-20 17:15:27 -0700 |
| commit | 308d9800b2c4f1fb344dbf055912d3140438bac0 (patch) | |
| tree | 24c94bc9e5d7aa3394a35d767f78f245e2922a58 /tools/perf/scripts/python | |
| parent | Btrfs: fix deadlock with nested trans handles (diff) | |
| download | linux-dev-308d9800b2c4f1fb344dbf055912d3140438bac0.tar.xz linux-dev-308d9800b2c4f1fb344dbf055912d3140438bac0.zip | |
Btrfs: cache extent states in defrag code path
When locking file ranges in the inode's io_tree, cache the first
extent state that belongs to the target range, so that when unlocking
the range we don't need to search in the io_tree again, reducing cpu
time and making and therefore holding the io_tree's lock for a shorter
period.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions