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| author | Yan, Zheng <zheng.yan@oracle.com> | 2009-11-12 09:33:58 +0000 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2009-12-15 21:24:25 -0500 |
| commit | ad48fd754676bfae4139be1a897b1ea58f9aaf21 (patch) | |
| tree | a48a051fa8716ba4be8f148f6d7d8ca47d93ab07 /fs/btrfs/tree-log.c | |
| parent | 8cef4e160d74920ad1725f58c89fd75ec4c4ac38 (diff) | |
| download | op-kernel-dev-ad48fd754676bfae4139be1a897b1ea58f9aaf21.zip op-kernel-dev-ad48fd754676bfae4139be1a897b1ea58f9aaf21.tar.gz | |
Btrfs: Add btrfs_duplicate_item
btrfs_duplicate_item duplicates item with new key, guaranteeing
the source item and the new items are in the same tree leaf and
contiguous. It allows us to split file extent in place, without
using lock_extent to prevent bookend extent race.
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/tree-log.c')
0 files changed, 0 insertions, 0 deletions
