Btrfs: fix callers of btrfs_block_rsv_migrate
So btrfs_block_rsv_migrate just unconditionally calls block_rsv_migrate_bytes.
Not only this but it unconditionally changes the size of the block_rsv. This
isn't a bug strictly speaking, but it makes truncate block rsv's look funny
because every time we migrate bytes over its size grows, even though we only
want it to be a specific size. So collapse this into one function that takes an
update_size argument and make truncate and evict not update the size for
consistency sake. Thanks,
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 4421954..3e61bd1 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5264,7 +5264,7 @@
if (steal_from_global) {
if (!btrfs_check_space_for_delayed_refs(trans, root))
ret = btrfs_block_rsv_migrate(global_rsv, rsv,
- min_size);
+ min_size, 0);
else
ret = -ENOSPC;
}
@@ -9116,7 +9116,7 @@
/* Migrate the slack space for the truncate to our reserve */
ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv, rsv,
- min_size);
+ min_size, 0);
BUG_ON(ret);
/*
@@ -9156,7 +9156,7 @@
}
ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv,
- rsv, min_size);
+ rsv, min_size, 0);
BUG_ON(ret); /* shouldn't happen */
trans->block_rsv = rsv;
}
@@ -9177,7 +9177,6 @@
ret = btrfs_end_transaction(trans, root);
btrfs_btree_balance_dirty(root);
}
-
out:
btrfs_free_block_rsv(root, rsv);