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authorChris Mason <chris.mason@oracle.com>2011-05-28 07:00:39 -0400
committerChris Mason <chris.mason@oracle.com>2011-05-28 07:00:39 -0400
commitff5714cca971848963b87d6b477c16ca8abbaa54 (patch)
tree17ee34b9b5e00804df4059503f82f6f1d94383a9 /fs/btrfs/free-space-cache.c
parent174ba50915b08dcfd07c8b5fb795b46a165fa09a (diff)
parentd90c732122a1f6d0efe388a8a204f67f144b2eb3 (diff)
Merge branch 'for-chris' of
git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-work into for-linus Conflicts: fs/btrfs/disk-io.c fs/btrfs/extent-tree.c fs/btrfs/free-space-cache.c fs/btrfs/inode.c fs/btrfs/transaction.c Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/free-space-cache.c')
-rw-r--r--fs/btrfs/free-space-cache.c27
1 files changed, 24 insertions, 3 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 70d45795d75..dd38d4c3a59 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -402,7 +402,14 @@ int __load_free_space_cache(struct btrfs_root *root, struct inode *inode,
spin_lock(&ctl->tree_lock);
ret = link_free_space(ctl, e);
spin_unlock(&ctl->tree_lock);
- BUG_ON(ret);
+ if (ret) {
+ printk(KERN_ERR "Duplicate entries in "
+ "free space cache, dumping\n");
+ kunmap(page);
+ unlock_page(page);
+ page_cache_release(page);
+ goto free_cache;
+ }
} else {
e->bitmap = kzalloc(PAGE_CACHE_SIZE, GFP_NOFS);
if (!e->bitmap) {
@@ -419,6 +426,14 @@ int __load_free_space_cache(struct btrfs_root *root, struct inode *inode,
ctl->op->recalc_thresholds(ctl);
spin_unlock(&ctl->tree_lock);
list_add_tail(&e->list, &bitmaps);
+ if (ret) {
+ printk(KERN_ERR "Duplicate entries in "
+ "free space cache, dumping\n");
+ kunmap(page);
+ unlock_page(page);
+ page_cache_release(page);
+ goto free_cache;
+ }
}
num_entries--;
@@ -963,10 +978,16 @@ static int tree_insert_offset(struct rb_root *root, u64 offset,
* logically.
*/
if (bitmap) {
- WARN_ON(info->bitmap);
+ if (info->bitmap) {
+ WARN_ON_ONCE(1);
+ return -EEXIST;
+ }
p = &(*p)->rb_right;
} else {
- WARN_ON(!info->bitmap);
+ if (!info->bitmap) {
+ WARN_ON_ONCE(1);
+ return -EEXIST;
+ }
p = &(*p)->rb_left;
}
}