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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs 

Pull btrfs updates from Chris Mason:
 "I have two additional and btrfs fixes in my for-linus branch.  One is
  a casting error that leads to memory corruption on i386 during scrub,
  and the other fixes a corner case in the backref walking code (also
  triggered by scrub)."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix casting error in scrub reada code
  btrfs: fix locking issues in find_parent_nodes()
This commit is contained in:
Linus Torvalds 2012-03-09 18:09:18 -08:00
parent be22aece68 a175423c83
commit 86e0600833
2 changed files with 7 additions and 3 deletions
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8
fs/btrfs/backref.c
View File

@ -583,7 +583,7 @@ static int find_parent_nodes(struct btrfs_trans_handle *trans,
struct btrfs_path *path;
struct btrfs_key info_key = { 0 };
struct btrfs_delayed_ref_root *delayed_refs = NULL;
struct btrfs_delayed_ref_head *head = NULL;
struct btrfs_delayed_ref_head *head;
int info_level = 0;
int ret;
struct list_head prefs_delayed;
@ -607,6 +607,8 @@ static int find_parent_nodes(struct btrfs_trans_handle *trans,
* at a specified point in time
*/
again:
head = NULL;
ret = btrfs_search_slot(trans, fs_info->extent_root, &key, path, 0, 0);
if (ret < 0)
goto out;
@ -635,8 +637,10 @@ again:
goto again;
}
ret = __add_delayed_refs(head, seq, &info_key, &prefs_delayed);
if (ret)
if (ret) {
spin_unlock(&delayed_refs->lock);
goto out;
}
}
spin_unlock(&delayed_refs->lock);

2
fs/btrfs/reada.c
View File

@ -305,7 +305,7 @@ again:
spin_lock(&fs_info->reada_lock);
ret = radix_tree_insert(&dev->reada_zones,
(unsigned long)zone->end >> PAGE_CACHE_SHIFT,
(unsigned long)(zone->end >> PAGE_CACHE_SHIFT),
zone);
spin_unlock(&fs_info->reada_lock);