On tue, 30 Jul 2013 12:09:55 +0100, Filipe David Borba Manana wrote:
> Also remove unused path in extent-tree.c:finish_current_insert().
>
> Signed-off-by: Filipe David Borba Manana <fdman...@gmail.com>
> ---
>
> V2: added 1 more path alloc check and removed unnecessary path
> allocation in extent-tree.c:finish_current_insert().
> V3: added missing path alloc checks to dir-item.c, file-item.c
> and btrfs-corrupt-block.c too.
> V4: added missing patch alloc checks to cmd-checks.c and
> root-tree.c.
Reviewed-by: Miao Xie <mi...@cn.fujitsu.com>
>
> btrfs-corrupt-block.c | 2 ++
> cmds-check.c | 2 ++
> dir-item.c | 2 ++
> extent-tree.c | 8 ++++----
> file-item.c | 2 ++
> root-tree.c | 2 ++
> 6 files changed, 14 insertions(+), 4 deletions(-)
>
> diff --git a/btrfs-corrupt-block.c b/btrfs-corrupt-block.c
> index 8176fad..22facd4 100644
> --- a/btrfs-corrupt-block.c
> +++ b/btrfs-corrupt-block.c
> @@ -159,6 +159,8 @@ static int corrupt_extent(struct btrfs_trans_handle
> *trans,
> int should_del = rand() % 3;
>
> path = btrfs_alloc_path();
> + if (!path)
> + return -ENOMEM;
>
> key.objectid = bytenr;
> key.type = (u8)-1;
> diff --git a/cmds-check.c b/cmds-check.c
> index 8015288..c1a0df9 100644
> --- a/cmds-check.c
> +++ b/cmds-check.c
> @@ -4561,6 +4561,8 @@ static int fixup_extent_refs(struct btrfs_trans_handle
> *trans,
> flags = BTRFS_BLOCK_FLAG_FULL_BACKREF;
>
> path = btrfs_alloc_path();
> + if (!path)
> + return -ENOMEM;
>
> /* step one, make sure all of the backrefs agree */
> ret = verify_backrefs(trans, info, path, rec);
> diff --git a/dir-item.c b/dir-item.c
> index f00485a..0ab3c5e 100644
> --- a/dir-item.c
> +++ b/dir-item.c
> @@ -123,6 +123,8 @@ int btrfs_insert_dir_item(struct btrfs_trans_handle
> *trans, struct btrfs_root
> btrfs_set_key_type(&key, BTRFS_DIR_ITEM_KEY);
> key.offset = btrfs_name_hash(name, name_len);
> path = btrfs_alloc_path();
> + if (!path)
> + return -ENOMEM;
> data_size = sizeof(*dir_item) + name_len;
> dir_item = insert_with_overflow(trans, root, path, &key, data_size,
> name, name_len);
> diff --git a/extent-tree.c b/extent-tree.c
> index f597e16..e4adaa3 100644
> --- a/extent-tree.c
> +++ b/extent-tree.c
> @@ -1487,6 +1487,8 @@ int btrfs_lookup_extent_info(struct btrfs_trans_handle
> *trans,
> }
>
> path = btrfs_alloc_path();
> + if (!path)
> + return -ENOMEM;
> path->reada = 1;
>
> key.objectid = bytenr;
> @@ -1577,6 +1579,8 @@ int btrfs_set_block_flags(struct btrfs_trans_handle
> *trans,
> BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA);
>
> path = btrfs_alloc_path();
> + if (!path)
> + return -ENOMEM;
> path->reada = 1;
>
> key.objectid = bytenr;
> @@ -2078,7 +2082,6 @@ static int finish_current_insert(struct
> btrfs_trans_handle *trans,
> u64 end;
> u64 priv;
> struct btrfs_fs_info *info = extent_root->fs_info;
> - struct btrfs_path *path;
> struct pending_extent_op *extent_op;
> struct btrfs_key key;
> int ret;
> @@ -2086,8 +2089,6 @@ static int finish_current_insert(struct
> btrfs_trans_handle *trans,
> btrfs_fs_incompat(extent_root->fs_info,
> BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA);
>
> - path = btrfs_alloc_path();
> -
> while(1) {
> ret = find_first_extent_bit(&info->extent_ins, 0, &start,
> &end, EXTENT_LOCKED);
> @@ -2121,7 +2122,6 @@ static int finish_current_insert(struct
> btrfs_trans_handle *trans,
> GFP_NOFS);
> kfree(extent_op);
> }
> - btrfs_free_path(path);
> return 0;
> }
>
> diff --git a/file-item.c b/file-item.c
> index 9c787f0..82bf99e 100644
> --- a/file-item.c
> +++ b/file-item.c
> @@ -417,6 +417,8 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans,
> root = root->fs_info->csum_root;
>
> path = btrfs_alloc_path();
> + if (!path)
> + return -ENOMEM;
>
> while (1) {
> key.objectid = BTRFS_EXTENT_CSUM_OBJECTID;
> diff --git a/root-tree.c b/root-tree.c
> index ba380bd..efcdb7b 100644
> --- a/root-tree.c
> +++ b/root-tree.c
> @@ -264,6 +264,8 @@ int btrfs_add_root_ref(struct btrfs_trans_handle *trans,
>
>
> path = btrfs_alloc_path();
> + if (!path)
> + return -ENOMEM;
>
> key.objectid = root_id;
> key.type = type;
>
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