[Ocfs2-devel] [PATCH 4/7] Shift allocation of ocfs2_live_connection to ocfs2_cluster_connect
Joel Becker
jlbec at evilplan.org
Fri Sep 27 12:03:05 PDT 2013
On Fri, Sep 27, 2013 at 12:08:25PM -0500, Goldwyn Rodrigues wrote:
> This is required because we need the live_connection structure ready
> when we perform the dlm_new_lockspace().
Why? You just allocate it and pass it in. Is it for a future change?
Mention what that change is.
Joel
> ---
> fs/ocfs2/stack_user.c | 31 +++++++++++++++----------------
> 1 file changed, 15 insertions(+), 16 deletions(-)
>
> diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c
> index 38c69c8..ffefbb5 100644
> --- a/fs/ocfs2/stack_user.c
> +++ b/fs/ocfs2/stack_user.c
> @@ -205,16 +205,10 @@ static struct ocfs2_live_connection *ocfs2_connection_find(const char *name)
> * fill_super(), we can't get dupes here.
> */
> static int ocfs2_live_connection_new(struct ocfs2_cluster_connection *conn,
> - struct ocfs2_live_connection **c_ret,
> + struct ocfs2_live_connection *c,
> enum ocfs2_connection_type type)
> {
> int rc = 0;
> - struct ocfs2_live_connection *c;
> -
> - c = kzalloc(sizeof(struct ocfs2_live_connection), GFP_KERNEL);
> - if (!c)
> - return -ENOMEM;
> -
> mutex_lock(&ocfs2_control_lock);
> c->oc_conn = conn;
> c->oc_type = type;
> @@ -229,11 +223,6 @@ static int ocfs2_live_connection_new(struct ocfs2_cluster_connection *conn,
>
> mutex_unlock(&ocfs2_control_lock);
>
> - if (!rc)
> - *c_ret = c;
> - else
> - kfree(c);
> -
> return rc;
> }
>
> @@ -839,12 +828,18 @@ static int user_cluster_disconnect(struct ocfs2_cluster_connection *conn)
> static int user_cluster_connect(struct ocfs2_cluster_connection *conn)
> {
> dlm_lockspace_t *fsdlm;
> - struct ocfs2_live_connection *uninitialized_var(control);
> + struct ocfs2_live_connection *lc = NULL;
> int rc = 0, ops_rv;
> enum ocfs2_connection_type type = NO_CONTROLD;
>
> BUG_ON(conn == NULL);
>
> + lc = kzalloc(sizeof(struct ocfs2_live_connection), GFP_KERNEL);
> + if (!lc) {
> + rc = -ENOMEM;
> + goto out;
> + }
> +
> rc = dlm_new_lockspace(conn->cc_name, conn->cc_cluster_name,
> DLM_LSFL_FS, DLM_LVB_LEN,
> &ocfs2_ls_ops, conn, &ops_rv, &fsdlm);
> @@ -863,7 +858,7 @@ static int user_cluster_connect(struct ocfs2_cluster_connection *conn)
> }
> conn->cc_lockspace = fsdlm;
>
> - rc = ocfs2_live_connection_new(conn, &control, type);
> + rc = ocfs2_live_connection_new(conn, lc, type);
> if (rc)
> goto out;
>
> @@ -883,6 +878,7 @@ static int user_cluster_connect(struct ocfs2_cluster_connection *conn)
> running_proto.pv_minor);
> rc = -EPROTO;
> user_cluster_disconnect(conn);
> + lc = NULL;
> goto out;
> }
>
> @@ -890,13 +886,16 @@ static int user_cluster_connect(struct ocfs2_cluster_connection *conn)
> DLM_LSFL_FS, DLM_LVB_LEN,
> NULL, NULL, NULL, &fsdlm);
> if (rc) {
> - ocfs2_live_connection_drop(control);
> + ocfs2_live_connection_drop(lc);
> + lc = NULL;
> goto out;
> }
> }
>
> - conn->cc_private = control;
> + conn->cc_private = lc;
> out:
> + if (rc && lc)
> + kfree(lc);
> return rc;
> }
>
> --
> 1.8.1.4
>
>
> --
> Goldwyn
>
> _______________________________________________
> Ocfs2-devel mailing list
> Ocfs2-devel at oss.oracle.com
> https://oss.oracle.com/mailman/listinfo/ocfs2-devel
--
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http://www.jlbec.org/
jlbec at evilplan.org
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