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| author | Miao Xie <miaox@cn.fujitsu.com> | 2012-09-06 04:03:56 -0600 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2012-10-01 15:19:12 -0400 |
| commit | 48c03c4bcfd7a1fcb1e05e9b1db1188cdbecf49a (patch) | |
| tree | aa89a228922632062ce60e18719e1be0bdb4475a /fs/btrfs | |
| parent | 42874b3db7817f662b1d7c6e32f8b63638fa0321 (diff) | |
| download | linux-48c03c4bcfd7a1fcb1e05e9b1db1188cdbecf49a.tar.bz2 | |
Btrfs: fix wrong size for the reservation of the, snapshot creation
We should insert/update 6 items(root ref, root backref, dir item, dir index,
root item and parent inode) when creating a snapshot, not 5 items, fix it.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 6 | ||||
| -rw-r--r-- | fs/btrfs/ioctl.c | 2 |
2 files changed, 4 insertions, 4 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 36e03312267a..b6b33e463ac3 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4414,10 +4414,10 @@ int btrfs_snap_reserve_metadata(struct btrfs_trans_handle *trans, struct btrfs_block_rsv *src_rsv = get_block_rsv(trans, root); struct btrfs_block_rsv *dst_rsv = &pending->block_rsv; /* - * two for root back/forward refs, two for directory entries - * and one for root of the snapshot. + * two for root back/forward refs, two for directory entries, + * one for root of the snapshot and one for parent inode. */ - u64 num_bytes = btrfs_calc_trans_metadata_size(root, 5); + u64 num_bytes = btrfs_calc_trans_metadata_size(root, 6); dst_rsv->space_info = src_rsv->space_info; return block_rsv_migrate_bytes(src_rsv, dst_rsv, num_bytes); } diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index e6934de55a8b..c56daa368768 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -526,7 +526,7 @@ static int create_snapshot(struct btrfs_root *root, struct dentry *dentry, *inherit = NULL; /* take responsibility to free it */ } - trans = btrfs_start_transaction(root->fs_info->extent_root, 5); + trans = btrfs_start_transaction(root->fs_info->extent_root, 6); if (IS_ERR(trans)) { ret = PTR_ERR(trans); goto fail; |