summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorJosef Bacik <jbacik@fusionio.com>2013-10-07 21:21:08 +0200
committerChris Mason <chris.mason@fusionio.com>2013-11-12 03:56:41 +0100
commit857cc2fc29cfaf4ee98fe9967bbf6a3942191136 (patch)
treeae0ba49149643241d5ae8b85e08f7c2dacb04ef8
parentBtrfs: fixup reserved trace points (diff)
downloadlinux-857cc2fc29cfaf4ee98fe9967bbf6a3942191136.tar.xz
linux-857cc2fc29cfaf4ee98fe9967bbf6a3942191136.zip
Btrfs: free reserved space on error in a few places
While trying to track down a reserved space leak I noticed a few places where we won't properly clean up reserved space if we have an error, this patch fixes those up. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
-rw-r--r--fs/btrfs/extent-tree.c21
-rw-r--r--fs/btrfs/inode.c2
2 files changed, 21 insertions, 2 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 65401d7ef663..054b11dc8edf 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2234,8 +2234,12 @@ static int run_one_delayed_ref(struct btrfs_trans_handle *trans,
{
int ret = 0;
- if (trans->aborted)
+ if (trans->aborted) {
+ if (insert_reserved)
+ btrfs_pin_extent(root, node->bytenr,
+ node->num_bytes, 1);
return 0;
+ }
if (btrfs_delayed_ref_is_head(node)) {
struct btrfs_delayed_ref_head *head;
@@ -2411,6 +2415,14 @@ static noinline int run_clustered_refs(struct btrfs_trans_handle *trans,
btrfs_free_delayed_extent_op(extent_op);
if (ret) {
+ /*
+ * Need to reset must_insert_reserved if
+ * there was an error so the abort stuff
+ * can cleanup the reserved space
+ * properly.
+ */
+ if (must_insert_reserved)
+ locked_ref->must_insert_reserved = 1;
btrfs_debug(fs_info, "run_delayed_extent_op returned %d", ret);
spin_lock(&delayed_refs->lock);
btrfs_delayed_ref_unlock(locked_ref);
@@ -6731,13 +6743,18 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans,
size += sizeof(*block_info);
path = btrfs_alloc_path();
- if (!path)
+ if (!path) {
+ btrfs_free_and_pin_reserved_extent(root, ins->objectid,
+ root->leafsize);
return -ENOMEM;
+ }
path->leave_spinning = 1;
ret = btrfs_insert_empty_item(trans, fs_info->extent_root, path,
ins, size);
if (ret) {
+ btrfs_free_and_pin_reserved_extent(root, ins->objectid,
+ root->leafsize);
btrfs_free_path(path);
return ret;
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index bb242f2fb51e..bba7f1a5e9f3 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8498,6 +8498,8 @@ static int __btrfs_prealloc_file_range(struct inode *inode, int mode,
ins.offset, 0, 0, 0,
BTRFS_FILE_EXTENT_PREALLOC);
if (ret) {
+ btrfs_free_reserved_extent(root, ins.objectid,
+ ins.offset);
btrfs_abort_transaction(trans, root, ret);
if (own_trans)
btrfs_end_transaction(trans, root);