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authorChris Mason <chris.mason@oracle.com>2009-03-13 10:24:59 -0400
committerChris Mason <chris.mason@oracle.com>2009-03-24 16:14:25 -0400
commit9fa8cfe706f9c20067c042a064999d5825a35330 (patch)
tree8e64281caffcdb3ad5a8ab8bf22bb90483e9e214 /fs/btrfs/ctree.h
parent8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 (diff)
downloadop-kernel-dev-9fa8cfe706f9c20067c042a064999d5825a35330.zip
op-kernel-dev-9fa8cfe706f9c20067c042a064999d5825a35330.tar.gz
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.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 5e1d4e3..3a37ba7 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,
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