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| author | Chris Mason | 2009-03-13 15:24:59 +0100 |
|---|---|---|
| committer | Chris Mason | 2009-03-24 21:14:25 +0100 |
| commit | 9fa8cfe706f9c20067c042a064999d5825a35330 (patch) | |
| tree | 8e64281caffcdb3ad5a8ab8bf22bb90483e9e214 /fs/btrfs/ctree.h | |
| parent | Linux 2.6.29 (diff) | |
| download | kernel-qcow2-linux-9fa8cfe706f9c20067c042a064999d5825a35330.tar.gz kernel-qcow2-linux-9fa8cfe706f9c20067c042a064999d5825a35330.tar.xz kernel-qcow2-linux-9fa8cfe706f9c20067c042a064999d5825a35330.zip | |
Btrfs: don't preallocate metadata blocks during btrfs_search_slot
In order to avoid doing expensive extent management with tree locks held,
btrfs_search_slot will preallocate tree blocks for use by COW without
any tree locks held.
A later commit moves all of the extent allocation work for COW into
a delayed update mechanism, and this preallocation will no longer be
required.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 5e1d4e30e9d8..3a37ba7a8d65 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1838,7 +1838,7 @@ int btrfs_search_forward(struct btrfs_root *root, struct btrfs_key *min_key, int btrfs_cow_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *buf, struct extent_buffer *parent, int parent_slot, - struct extent_buffer **cow_ret, u64 prealloc_dest); + struct extent_buffer **cow_ret); int btrfs_copy_root(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *buf, |