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| author | Yan, Zheng <zheng.yan@oracle.com> | 2010-05-16 14:49:58 (GMT) |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2010-05-25 14:34:52 (GMT) |
| commit | d68fc57b7e3245cfacf2e3b47acfed1946a11786 (patch) | |
| tree | c2572fcd935017440c8370c8a12ceb49a7fc4f1f /fs/btrfs/transaction.c | |
| parent | 8929ecfa50f266163832eeacfbc3642ed5eb83b6 (diff) | |
| download | linux-fsl-qoriq-d68fc57b7e3245cfacf2e3b47acfed1946a11786.tar.xz | |
Btrfs: Metadata reservation for orphan inodes
reserve metadata space for handling orphan inodes
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/transaction.c')
| -rw-r--r-- | fs/btrfs/transaction.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 6217bb6..cfe7f58 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -676,6 +676,7 @@ static noinline int commit_fs_roots(struct btrfs_trans_handle *trans, btrfs_free_log(trans, root); btrfs_update_reloc_root(trans, root); + btrfs_orphan_commit_root(trans, root); if (root->commit_root != root->node) { switch_commit_root(root); @@ -835,6 +836,8 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, struct extent_buffer *tmp; struct extent_buffer *old; int ret; + int retries = 0; + u64 to_reserve = 0; u64 index = 0; u64 objectid; @@ -850,6 +853,17 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, goto fail; } + btrfs_orphan_pre_snapshot(trans, pending, &to_reserve); + + if (to_reserve > 0) { + ret = btrfs_block_rsv_add(trans, root, &pending->block_rsv, + to_reserve, &retries); + if (ret) { + pending->error = ret; + goto fail; + } + } + key.objectid = objectid; key.offset = (u64)-1; key.type = BTRFS_ROOT_ITEM_KEY; @@ -909,6 +923,8 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, key.offset = (u64)-1; pending->snap = btrfs_read_fs_root_no_name(root->fs_info, &key); BUG_ON(IS_ERR(pending->snap)); + + btrfs_orphan_post_snapshot(trans, pending); fail: kfree(new_root_item); btrfs_block_rsv_release(root, &pending->block_rsv, (u64)-1); |