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Commit e1b81e67 authored by Mingming's avatar Mingming Committed by Chris Mason
Browse files

btrfs delete ordered inode handling fix 



Use btrfs_release_file instead of a put_inode call

Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent da496f2a

fs/btrfs/file.c

+7 −0
Original line number Diff line number Diff line
@@ -978,6 +978,12 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf, 
	return num_written ? num_written : err;

}



static int btrfs_release_file (struct inode * inode, struct file * filp)

{

	btrfs_del_ordered_inode(inode);

	return 0;

}



static int btrfs_sync_file(struct file *file,

			   struct dentry *dentry, int datasync)

{
@@ -1044,6 +1050,7 @@ struct file_operations btrfs_file_operations = { 
	.write		= btrfs_file_write,

	.mmap		= btrfs_file_mmap,

	.open		= generic_file_open,

	.release	= btrfs_release_file,

	.fsync		= btrfs_sync_file,

	.unlocked_ioctl	= btrfs_ioctl,

#ifdef CONFIG_COMPAT

fs/btrfs/inode.c

+1 −23
Original line number Diff line number Diff line
@@ -857,15 +857,11 @@ static int btrfs_unlink(struct inode *dir, struct dentry *dentry) 
	nr = trans->blocks_used;



	if (inode->i_nlink == 0) {

		int found;

		/* if the inode isn't linked anywhere,

		 * we don't need to worry about

		 * data=ordered

		 */

		found = btrfs_del_ordered_inode(inode);

		if (found == 1) {

			atomic_dec(&inode->i_count);

		}

		btrfs_del_ordered_inode(inode);

	}



	btrfs_end_transaction(trans, root);
@@ -1271,24 +1267,6 @@ static int btrfs_setattr(struct dentry *dentry, struct iattr *attr) 
	return err;

}



void btrfs_put_inode(struct inode *inode)

{

	int ret;



	if (!BTRFS_I(inode)->ordered_trans) {

		return;

	}



	if (mapping_tagged(inode->i_mapping, PAGECACHE_TAG_DIRTY) ||

	    mapping_tagged(inode->i_mapping, PAGECACHE_TAG_WRITEBACK))

		return;



	ret = btrfs_del_ordered_inode(inode);

	if (ret == 1) {

		atomic_dec(&inode->i_count);

	}

}



void btrfs_delete_inode(struct inode *inode)

{

	struct btrfs_trans_handle *trans;

fs/btrfs/ordered-data.c

+14 −7
Original line number Diff line number Diff line
@@ -231,7 +231,7 @@ int btrfs_find_del_first_ordered_inode(struct btrfs_ordered_inode_tree *tree, 
	return 1;

}



static int __btrfs_del_ordered_inode(struct btrfs_ordered_inode_tree *tree,

static void __btrfs_del_ordered_inode(struct btrfs_ordered_inode_tree *tree,

				     struct inode *inode,

				     u64 root_objectid, u64 objectid)

{
@@ -243,31 +243,38 @@ static int __btrfs_del_ordered_inode(struct btrfs_ordered_inode_tree *tree, 
	node = __tree_search(&tree->tree, root_objectid, objectid, &prev);

	if (!node) {

		write_unlock(&tree->lock);

		return 0;

		return;

	}

	rb_erase(node, &tree->tree);

	BTRFS_I(inode)->ordered_trans = 0;

	write_unlock(&tree->lock);

	atomic_dec(&inode->i_count);

	entry = rb_entry(node, struct tree_entry, rb_node);

	kfree(entry);

	return 1;

	return;

}



int btrfs_del_ordered_inode(struct inode *inode)

void btrfs_del_ordered_inode(struct inode *inode)

{

	struct btrfs_root *root = BTRFS_I(inode)->root;

	u64 root_objectid = root->root_key.objectid;

	int ret = 0;



	if (!BTRFS_I(inode)->ordered_trans) {

		return;

	}



	if (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);

	if (root->fs_info->running_transaction) {

		struct btrfs_ordered_inode_tree *tree;

		tree = &root->fs_info->running_transaction->ordered_inode_tree;

		ret = __btrfs_del_ordered_inode(tree, inode, root_objectid,

		 __btrfs_del_ordered_inode(tree, inode, root_objectid,

						inode->i_ino);

	}

	spin_unlock(&root->fs_info->new_trans_lock);

	return ret;

}



int btrfs_ordered_throttle(struct btrfs_root *root, struct inode *inode)

fs/btrfs/ordered-data.h

+1 −1
Original line number Diff line number Diff line
@@ -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);

int btrfs_del_ordered_inode(struct inode *inode);

void btrfs_del_ordered_inode(struct inode *inode);

int btrfs_ordered_throttle(struct btrfs_root *root, struct inode *inode);

#endif

fs/btrfs/super.c

+0 −1
Original line number Diff line number Diff line
@@ -487,7 +487,6 @@ static void btrfs_unlockfs(struct super_block *sb) 


static struct super_operations btrfs_super_ops = {

	.delete_inode	= btrfs_delete_inode,

	.put_inode	= btrfs_put_inode,

	.put_super	= btrfs_put_super,

	.write_super	= btrfs_write_super,

	.sync_fs	= btrfs_sync_fs,