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Commit f75b130e authored by Josef Bacik's avatar Josef Bacik
Browse files

Btrfs: don't skip writing out a empty block groups cache 



I noticed a slight bug where we will not bother writing out the block group
cache's space cache if it's space tree is empty.  Since it could have a cluster
or pinned extents that need to be written out this is just not a valid test.
Thanks,

Signed-off-by: default avatarJosef Bacik <josef@redhat.com>
parent 73bc1876

fs/btrfs/free-space-cache.c

+6 −4
Original line number Original line Diff line number Diff line
@@ -575,10 +575,6 @@ int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode, 




	INIT_LIST_HEAD(&bitmap_list);

	INIT_LIST_HEAD(&bitmap_list);





	node = rb_first(&ctl->free_space_offset);

	if (!node)

		return -1;



	if (!i_size_read(inode))

	if (!i_size_read(inode))

		return -1;

		return -1;
@@ -639,6 +635,12 @@ int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode, 
	if (block_group)

	if (block_group)

		start = block_group->key.objectid;

		start = block_group->key.objectid;





	node = rb_first(&ctl->free_space_offset);

	if (!node && cluster) {

		node = rb_first(&cluster->root);

		cluster = NULL;

	}



	/* Write out the extent entries */

	/* Write out the extent entries */

	do {

	do {

		struct btrfs_free_space_entry *entry;

		struct btrfs_free_space_entry *entry;