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| author | Miao Xie | 2013-05-15 09:48:20 +0200 |
|---|---|---|
| committer | Josef Bacik | 2013-06-14 17:29:38 +0200 |
| commit | b0feb9d96e71a88d7eec56f41b8f23e92af889b0 (patch) | |
| tree | e808deeb4f3b33636d6481ff1bc88ae269880fa3 /fs/btrfs/extent-tree.c | |
| parent | Btrfs: cleanup the similar code of the fs root read (diff) | |
| download | kernel-qcow2-linux-b0feb9d96e71a88d7eec56f41b8f23e92af889b0.tar.gz kernel-qcow2-linux-b0feb9d96e71a88d7eec56f41b8f23e92af889b0.tar.xz kernel-qcow2-linux-b0feb9d96e71a88d7eec56f41b8f23e92af889b0.zip | |
Btrfs: introduce grab/put functions for the root of the fs/file tree
The grab/put funtions will be used in the next patch, which need grab
the root object and ensure it is not freed. We use reference counter
instead of the srcu lock is to aovid blocking the memory reclaim task,
which invokes synchronize_srcu().
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index c989fe602faf..04066c2cc711 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -7469,7 +7469,7 @@ int btrfs_drop_snapshot(struct btrfs_root *root, } else { free_extent_buffer(root->node); free_extent_buffer(root->commit_root); - kfree(root); + btrfs_put_fs_root(root); } out_end_trans: btrfs_end_transaction_throttle(trans, tree_root); |