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Btrfs: Introduce global metadata reservation

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Reserve metadata space for extent tree, checksum tree and root tree

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Yan, Zheng
2010-05-16 10:49:58 -04:00
committed by Chris Mason
parent 0ca1f7ceb1
commit 8929ecfa50
8 changed files with 242 additions and 77 deletions
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13
fs/btrfs/inode.c
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@@ -4060,7 +4060,7 @@ int btrfs_write_inode(struct inode *inode, struct writeback_control *wbc)
struct btrfs_trans_handle *trans;
int ret = 0;
if (root->fs_info->btree_inode == inode)
if (BTRFS_I(inode)->dummy_inode)
return 0;
if (wbc->sync_mode == WB_SYNC_ALL) {
@@ -4081,10 +4081,19 @@ void btrfs_dirty_inode(struct inode *inode)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
int ret;
if (BTRFS_I(inode)->dummy_inode)
return;
trans = btrfs_join_transaction(root, 1);
btrfs_set_trans_block_group(trans, inode);
btrfs_update_inode(trans, root, inode);
ret = btrfs_update_inode(trans, root, inode);
if (ret)
printk(KERN_ERR"btrfs: fail to dirty inode %lu error %d\n",
inode->i_ino, ret);
btrfs_end_transaction(trans, root);
}