diff options
| author |   Yan, Zheng <zheng.yan@oracle.com> | 2010-05-16 10:46:25 -0400 |
|---|---|---|
| committer |   Chris Mason <chris.mason@oracle.com> | 2010-05-25 10:34:50 -0400 |
| commit | f0486c68e4bd9a06a5904d3eeb3a0d73a83befb8 (patch) | |
| tree | 509428ef400ef45e875a3c448b63b86cbea36aea /fs/btrfs/tree-defrag.c | |
| parent | Btrfs: Kill init_btrfs_i() (diff) | |
| download | wireguard-linux-f0486c68e4bd9a06a5904d3eeb3a0d73a83befb8.tar.xz wireguard-linux-f0486c68e4bd9a06a5904d3eeb3a0d73a83befb8.zip | |
Btrfs: Introduce contexts for metadata reservation
Introducing metadata reseravtion contexts has two major advantages.
First, it makes metadata reseravtion more traceable. Second, it can
reclaim freed space and re-add them to the itself after transaction
committed.
Besides add btrfs_block_rsv structure and related helper functions,
This patch contains following changes:
Move code that decides if freed tree block should be pinned into
btrfs_free_tree_block().
Make space accounting more accurate, mainly for handling read only
block groups.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/tree-defrag.c')
0 files changed, 0 insertions, 0 deletions