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Btrfs: only add orphan items when truncating 

We don't need an orphan item when expanding files, we just need them for
truncating them, so only add the orphan item in btrfs_truncate instead of in
btrfs_setsize.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
This commit is contained in:
Josef Bacik 2011-03-04 14:37:08 -05:00
parent ded5db9de7
commit f0cd846e92
1 changed files with 18 additions and 27 deletions
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45
fs/btrfs/inode.c
View File

@ -3649,22 +3649,6 @@ static int btrfs_setsize(struct inode *inode, loff_t newsize)
if (newsize == oldsize) if (newsize == oldsize)
return 0; return 0;
trans = btrfs_start_transaction(root, 5);
if (IS_ERR(trans))
return PTR_ERR(trans);
btrfs_set_trans_block_group(trans, inode);
ret = btrfs_orphan_add(trans, inode);
if (ret) {
btrfs_end_transaction(trans, root);
return ret;
}
nr = trans->blocks_used;
btrfs_end_transaction(trans, root);
btrfs_btree_balance_dirty(root, nr);
if (newsize > oldsize) { if (newsize > oldsize) {
i_size_write(inode, newsize); i_size_write(inode, newsize);
btrfs_ordered_update_i_size(inode, i_size_read(inode), NULL); btrfs_ordered_update_i_size(inode, i_size_read(inode), NULL);
@ -3675,25 +3659,15 @@ static int btrfs_setsize(struct inode *inode, loff_t newsize)
return ret; return ret;
} }
trans = btrfs_start_transaction(root, 0); trans = btrfs_start_transaction(root, 1);
if (IS_ERR(trans)) if (IS_ERR(trans))
return PTR_ERR(trans); return PTR_ERR(trans);
btrfs_set_trans_block_group(trans, inode);
trans->block_rsv = root->orphan_block_rsv;
BUG_ON(!trans->block_rsv);
/*
* If this fails just leave the orphan item so that it can get
* cleaned up next time we mount.
*/
ret = btrfs_update_inode(trans, root, inode); ret = btrfs_update_inode(trans, root, inode);
if (ret) { if (ret) {
btrfs_end_transaction(trans, root); btrfs_end_transaction(trans, root);
return ret; return ret;
} }
if (inode->i_nlink > 0)
ret = btrfs_orphan_del(trans, inode);
nr = trans->blocks_used; nr = trans->blocks_used;
btrfs_end_transaction(trans, root); btrfs_end_transaction(trans, root);
btrfs_btree_balance_dirty(root, nr); btrfs_btree_balance_dirty(root, nr);
@ -6517,6 +6491,23 @@ static int btrfs_truncate(struct inode *inode)
btrfs_wait_ordered_range(inode, inode->i_size & (~mask), (u64)-1); btrfs_wait_ordered_range(inode, inode->i_size & (~mask), (u64)-1);
btrfs_ordered_update_i_size(inode, inode->i_size, NULL); btrfs_ordered_update_i_size(inode, inode->i_size, NULL);
trans = btrfs_start_transaction(root, 5);
if (IS_ERR(trans))
return PTR_ERR(trans);
btrfs_set_trans_block_group(trans, inode);
ret = btrfs_orphan_add(trans, inode);
if (ret) {
btrfs_end_transaction(trans, root);
return ret;
}
nr = trans->blocks_used;
btrfs_end_transaction(trans, root);
btrfs_btree_balance_dirty(root, nr);
/* Now start a transaction for the truncate */
trans = btrfs_start_transaction(root, 0); trans = btrfs_start_transaction(root, 0);
if (IS_ERR(trans)) if (IS_ERR(trans))
return PTR_ERR(trans); return PTR_ERR(trans);