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authorChris Mason <chris.mason@oracle.com>2008-07-28 15:32:51 -0400
committerChris Mason <chris.mason@oracle.com>2008-09-25 11:04:05 -0400
commit017e5369eb353559d68a11d4a718faa634533821 (patch)
treec339f2f4a59e403c7f9bfa8d137663c6bf260537 /fs/btrfs/inode.c
parent31153d81284934601d08110ac7698fd9a535e4c0 (diff)
Btrfs: Leaf reference cache update
This changes the reference cache to make a single cache per root instead of one cache per transaction, and to key by the byte number of the disk block instead of the keys inside. This makes it much less likely to have cache misses if a snapshot or something has an extra reference on a higher node or a leaf while the first transaction that added the leaf into the cache is dropping. Some throttling is added to functions that free blocks heavily so they wait for old transactions to drop. Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/inode.c')
-rw-r--r--fs/btrfs/inode.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index cf9534b79ab..4f977ea5497 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2482,7 +2482,7 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
btrfs_update_inode_block_group(trans, dir);
out_unlock:
nr = trans->blocks_used;
- btrfs_end_transaction_throttle(trans, root);
+ btrfs_end_transaction(trans, root);
fail:
if (drop_inode) {
inode_dec_link_count(inode);
@@ -2535,7 +2535,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
drop_inode = 1;
nr = trans->blocks_used;
- btrfs_end_transaction_throttle(trans, root);
+ btrfs_end_transaction(trans, root);
fail:
if (drop_inode) {
inode_dec_link_count(inode);
@@ -2609,7 +2609,7 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
out_fail:
nr = trans->blocks_used;
- btrfs_end_transaction_throttle(trans, root);
+ btrfs_end_transaction(trans, root);
out_unlock:
if (drop_on_err)
@@ -3548,7 +3548,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
out_unlock:
nr = trans->blocks_used;
- btrfs_end_transaction_throttle(trans, root);
+ btrfs_end_transaction(trans, root);
out_fail:
if (drop_inode) {
inode_dec_link_count(inode);