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Btrfs: make sure to update total_bitmaps when freeing cache V3 

A user reported this bug again where we have more bitmaps than we are supposed
to.  This is because we failed to load the free space cache, but don't update
the ctl->total_bitmaps counter when we remove entries from the tree.  This patch
fixes this problem and we should be good to go again.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Josef Bacik 2011-06-24 16:02:51 +00:00 committed by Chris Mason
parent e0f5406727
commit 9b90f51353
1 changed files with 6 additions and 3 deletions
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9
fs/btrfs/free-space-cache.c
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@ -1893,9 +1893,12 @@ void __btrfs_remove_free_space_cache_locked(struct btrfs_free_space_ctl *ctl)
while ((node = rb_last(&ctl->free_space_offset)) != NULL) {
info = rb_entry(node, struct btrfs_free_space, offset_index);
unlink_free_space(ctl, info);
kfree(info->bitmap);
kmem_cache_free(btrfs_free_space_cachep, info);
if (!info->bitmap) {
unlink_free_space(ctl, info);
kmem_cache_free(btrfs_free_space_cachep, info);
} else {
free_bitmap(ctl, info);
}
if (need_resched()) {
spin_unlock(&ctl->tree_lock);
cond_resched();