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Fix btrfs_del_ordered_inode to allow forcing the drop during unlinks

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This allows us to delete an unlinked inode with dirty pages from the list
instead of forcing commit to write these out before deleting the inode.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2008-06-25 16:01:30 -04:00
parent 051e1b9f74
commit 594a24eb0e
5 changed files with 19 additions and 13 deletions
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18
fs/btrfs/ctree.c
View File

@ -1245,7 +1245,10 @@ int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root
int level;
int should_reada = p->reada;
int lowest_unlock = 1;
int blocksize;
u8 lowest_level = 0;
u64 blocknr;
u64 gen;
lowest_level = p->lowest_level;
WARN_ON(lowest_level && ins_len);
@ -1320,11 +1323,12 @@ int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root
reada_for_search(root, p, level, slot,
key->objectid);
tmp = btrfs_find_tree_block(root,
btrfs_node_blockptr(b, slot),
btrfs_level_size(root, level - 1));
if (tmp && btrfs_buffer_uptodate(tmp,
btrfs_node_ptr_generation(b, slot))) {
blocknr = btrfs_node_blockptr(b, slot);
gen = btrfs_node_ptr_generation(b, slot);
blocksize = btrfs_level_size(root, level - 1);
tmp = btrfs_find_tree_block(root, blocknr, blocksize);
if (tmp && btrfs_buffer_uptodate(tmp, gen)) {
b = tmp;
} else {
/*
@ -1334,6 +1338,10 @@ int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root
*/
if (level > 1) {
btrfs_release_path(NULL, p);
if (tmp)
free_extent_buffer(tmp);
tmp = read_tree_block(root, blocknr,
blocksize, gen);
if (tmp)
free_extent_buffer(tmp);
goto again;

2
fs/btrfs/file.c
View File

@ -976,7 +976,7 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf,
int btrfs_release_file(struct inode * inode, struct file * filp)
{
btrfs_del_ordered_inode(inode);
btrfs_del_ordered_inode(inode, 0);
if (filp->private_data)
btrfs_ioctl_trans_end(filp);
return 0;

4
fs/btrfs/inode.c
View File

@ -852,7 +852,7 @@ static int btrfs_unlink(struct inode *dir, struct dentry *dentry)
* we don't need to worry about
* data=ordered
*/
btrfs_del_ordered_inode(inode);
btrfs_del_ordered_inode(inode, 1);
}
btrfs_end_transaction(trans, root);
@ -1276,14 +1276,12 @@ void btrfs_delete_inode(struct inode *inode)
btrfs_end_transaction(trans, root);
btrfs_btree_balance_dirty(root, nr);
btrfs_throttle(root);
return;
no_delete_lock:
nr = trans->blocks_used;
btrfs_end_transaction(trans, root);
btrfs_btree_balance_dirty(root, nr);
btrfs_throttle(root);
no_delete:
clear_inode(inode);
}

6
fs/btrfs/ordered-data.c
View File

@ -254,7 +254,7 @@ static void __btrfs_del_ordered_inode(struct btrfs_ordered_inode_tree *tree,
return;
}
void btrfs_del_ordered_inode(struct inode *inode)
void btrfs_del_ordered_inode(struct inode *inode, int force)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
u64 root_objectid = root->root_key.objectid;
@ -263,8 +263,8 @@ void btrfs_del_ordered_inode(struct inode *inode)
return;
}
if (mapping_tagged(inode->i_mapping, PAGECACHE_TAG_DIRTY) ||
mapping_tagged(inode->i_mapping, PAGECACHE_TAG_WRITEBACK))
if (!force && (mapping_tagged(inode->i_mapping, PAGECACHE_TAG_DIRTY) ||
mapping_tagged(inode->i_mapping, PAGECACHE_TAG_WRITEBACK)))
return;
spin_lock(&root->fs_info->new_trans_lock);

2
fs/btrfs/ordered-data.h
View File

@ -38,6 +38,6 @@ int btrfs_find_del_first_ordered_inode(struct btrfs_ordered_inode_tree *tree,
int btrfs_find_first_ordered_inode(struct btrfs_ordered_inode_tree *tree,
u64 *root_objectid, u64 *objectid,
struct inode **inode);
void btrfs_del_ordered_inode(struct inode *inode);
void btrfs_del_ordered_inode(struct inode *inode, int force);
int btrfs_ordered_throttle(struct btrfs_root *root, struct inode *inode);
#endif