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Btrfs: Add an extent buffer LRU to reduce radix tree hits

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2007-10-15 16:18:14 -04:00
parent e19caa5f0e
commit 4dc119046d
6 changed files with 134 additions and 111 deletions
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3
fs/btrfs/ctree.c
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@ -88,8 +88,6 @@ static int __btrfs_cow_block(struct btrfs_trans_handle *trans,
if (IS_ERR(cow))
return PTR_ERR(cow);
cow->alloc_addr = (unsigned long)__builtin_return_address(0);
copy_extent_buffer(cow, buf, 0, 0, cow->len);
btrfs_set_header_bytenr(cow, cow->start);
btrfs_set_header_generation(cow, trans->transid);
@ -151,7 +149,6 @@ int btrfs_cow_block(struct btrfs_trans_handle *trans,
search_start = buf->start & ~((u64)BTRFS_BLOCK_GROUP_SIZE - 1);
ret = __btrfs_cow_block(trans, root, buf, parent,
parent_slot, cow_ret, search_start, 0);
(*cow_ret)->alloc_addr = (unsigned long)__builtin_return_address(0);
return ret;
}